Prev iATN Members TechHelp for August 3, 2007
Automotive Technical Exchange for the Automotive Repair Professional		 Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models
Help Request Answers
1991 Acura Legend 3.2L a/c
Hello to all tech. out there. I have this 91 acura legend that has a problem with it A/C. Everytime I rev the engine up to 2700 rpm. The a/c would cut off and stay off untill I return the rpm to almost at idle. Before the a/c would works again. I have try ever...		 View
1997 Acura CL 2.2L No Start
ecu will maintain comm only with ac switched on..there is no injector pulse.excuse the caps,it's 100'and humid and i know this is something stupid!		 View
1991 BMW 535i 3.4L Poor Idle Quality, Hesitation, Cuts out, Misfire
Thanks in advance for the help! I have this BMW with no codes or warning lights on. Runs exactly like it has bad spark plug wires under aceeleration but also stalls at times and just generally rins like crap. It seems like its running rich but i dont have a ma...		 View
2000 BMW 323i 2.5L Unknown
Hi thanks for your help.I have a 323 with vent problem when the A/C is on set at 59F the driver vents is 50F on the pass vent 70F it is Not dual climate.I set the temp at 91F the vent on the driver vent temp is 80F and pass vent 100F.All vent controls work and...		 View
2002 BMW X5 4.4L ews
Hi: Have an X5 here with an intermittent no crank and intermittent delay of crank somtimes, Has codes 35 toleration of changing code increased with key and 15 power on reset. Battery tests ok, problem exists with several different keys. any ideas ? I see there...		 View
2005 BMW 645Ci 4.4L sound system
hi all. i have this 2005 bmw 645 here that came in with no sound and i have checked all the fuses and found everything to be ok. the display comes on and just says bmw so i know that is working but i don't get any other display. i have had before the amplifier...		 View
1984 Cadillac Fleetwood 4.1L No Start, VAPOR LOCK
Hi techs. This clean well maintained car leaves a bad taste in my mouth. After 30 minutes hot soak (in the sun) we have a crank & no start. Checking at the fuel pressure service port, pressing the schrader valve, I get PSSST...Air. Then fuel. WTF? I have never...		 View
1998 Cadillac DeVille 4.6L ebtcm
vehicle came in with code C1277 for loss of reqested torque signal. following trouble code chart in Mitchell 1 and information tip in Napa Fix came to the conclusion to replace EBTCM. intermittently codes for open or short in wheel speed sensors also come up. ...		 View
1996 Chevrolet Lumina 3.1L shift quality
This car will shift make erratic shifts from 3rd to over drive at speeds of 55-60 MPH. The converter also will make erratic lock/unlock shifts. My Gynesis system shows that this is being commanded from the PCM. The engine seems to be running fine for the most ...		 View
1996 Chevrolet Blazer 4.3L air bag
This blazer came in with an air bag on. The only code that was in it was a #83 with a description of, Driver reserve diode fault. I have cleared the codes and now the light is on but there's no codes. I really need some help here.Thanks		 View
1998 Chevrolet K1500 Suburban 5.7L No blower operation
Hi GM Tecs, this Suburban's AC compressor functions well, accumulator ice cold, problem is blower doesn't get power from resistor nor does resistor get power from the ac control module. This module was replaced 3 months ago. Truck returned and pulled module an...		 View
1999 Chevrolet Blazer 4.3L air temp./blend door
this customer's blazer is blowing hot all the time. he complained of no ac and blowing hot all the time. the compressors was not engaging and system was low on refrigerant. Evacuated and recharged system with dye to check for leak. AC now functioning properly ...		 View
1999 Chevrolet Malibu 2.4L noise
engine has noise at 3500 rpm in park or neutral...engine is not knocking,drive belt disconnected. sounds like a resonation or howl..water pump was replaced due to seapage at weap hole...converter was good no noise emitting from exhaust...checked all brackets f...		 View
2000 Chevrolet C3500 7.4L lifters
we did a inhouse rebuild used same lifters and camshaft after the lifters pump all the way up we get no compression .we tried [...] under size push rods but still the same thing. never had this happen before any ideas anyone.		 View
2001 Chevrolet Impala 3.8L compressor
This car has a knocking compressor, not real loud but definately making a noise. My question is can it be the charge not perfect or is the compressor on its way out.		 View
2001 Chevrolet Silverado 2500 6.0L shift problem
hi guys . this 2001 chevy 2500 hd seems to shift fine in town till you need to pass someone. then the transmission feels to slip.engine revs high. replaced transmission/computer/tps sensor. the local trans shop says may have a wiring problem. i just need a pla...		 View
2001 Chevrolet Cavalier 2.2L theft system
hi every one need help on this one the car starts and dies theft light dose blink or stays on. checked codes had b2947 b2958 p1632. seems to have theft problems checked voltage at passlock sensor has 12 volts and has ground it also reads 5.0 volts in scan tool...		 View
2001 Chevrolet Impala 3.4L No Start
Customer complained of a no crank. I checked codes and got all the codes listed. Customer stated that when it would not crank the radio did not work either. I could not duplicate the problem so I performed the tsb for tightening bcm terminals and cleaned the g... Trouble codes: U1255 (Class 2 communication), U1301 (Class2 short to battery), B2960 (Theft system), U1064 (Loss of communication), P1626 (Theft system).		 View
2003 Chevrolet Express 3500 6.0L Electronic
This Chevy will not ground the A/C clutch relay. I am able to go through and ground the relay (thus making the compressor turn on)via my aftermarket Snap On scanner. While looking through the data I noticed that there was "no" A/C request. The request comes fr...		 View
2004 Chevrolet Suburban 2500 4.8L Encoder Motor
Vehicle came in with service 4 wheel drive in the instrument cluster. Retrieved code C0327 - Encoder motor circuit malfunction. 4 wheel drive buttons light up on bulb check but have no lights when truck is running, and buttons don't seem to do anything, but on...		 View
1997 Chrysler Sebring 2.5L run-on after key off
please help, car continues to run for up to five seconds after key is cycled to off position. it acts like asd relay is powered up until engine runs out of fuel and dies. if you pull the asd relay or the asd fuse, the engine will die just like it should. i hav...		 View
1997 Dodge Dakota 5.2L dash lights , tail lights
Vehicle was brought in for a voltage drain...found headlight switch to not be shutting off completly...changed headlight switch.THAT FIXED VOLT DRAIN.now have several differant problems... Park Lights and Dash lights wont work with new aftermarket switch...if ...		 View
1999 Dodge Dakota 5.2L door locks
this 1999 dakota p/u has keyless entry, entry systems works properly, locks and unlocks both doors, but using either switch from inside locks do not work, also radio display does not work but radio does, i removed both front door panels and disconnected the ha...		 View
2004 Dodge Neon 2.0L Surge, Cuts out, MIL Lamp on
Good morning I have this neon that came in with a P0344 cam sensor intermitent. This is an out of town car that comes here on weekends. Scanner check showed cam and crank sensor where in sync,Lab scope shows good signal. Customer said the light comes on after ... Trouble codes: 344 (intermitent cam signal loss).		 View
2004 Dodge Neon 2.0L No speedometer, no upshift
Hi Dodge Tecs, This Neon came in with check engine light on, irregular speedometer, occationally no up shift, firm shift at times, battery low charge. Charge battery.Test charging system, 14.3 volts, looks good. Clear codes, record freeze frame data. Take shor...		 View
1990 Ford F-250 7.3L Hesitation, Cuts out
Hello everyone, Customer already had this problem starting many months ago. When it was raining or on a bumpy road, the truck would intermittently lose power, transmission shifting erractic, TACH rpm bouncing up & down ... but never actually quit. But anytime ...		 View
1992 Ford Mustang 2.3L Excessive Emissions, Poor Fuel Economy, MIL Lamp on
spark plugs only firing on one side.# 1 and 4 only fire on the driver side and # 2 and 3 only fire on passenger side.swap coils ,no change.back probe signal wires to coils,no pulse signal from tan and green wire or tan and white wire.i think i have a bad crank... Trouble codes: 172 (o2 lean), 186 (inj pulse width high), 222 (loss of ign idm signalright side), 223 (loss of dual ign control), 224 (eec processor detected coil malf), 998 (hard fault fmem).		 View
1994 Ford Ranger 4.0L Hesitation, Surge, Misfire
Came in to shop with complaint of no power when cold. Let set over night and sure enough trying to go forward or backward engines misses and has no power.Once engines warms up it runs great. Will run all day without missing or having a take off problem. Tried ... Trouble codes: 159 (MAF Sensor).		 View
1995 Ford F-150 4.9L no forward
okay, i know i was not to bright doing it this way, but here's the situation. i was helping out a friend... anyway i agreed to overhaul this E4OD...my first one... someone else pulled it, and then it was brought to me. everything went well, or so i thought. it...		 View
1996 Ford Contour 2.0L Poor Idle Quality, high idle
car is idleing at 1557 rpm. on start up it flares higher then drops to this. also when you accelerate it's slow coming back to 1557. iac shows 27% short term fuel trim is 0 average. so I don't see that a vac. leak is in the picture, also I took the iac off and... Trouble codes: p1506 (idle to high).		 View
1999 Ford Explorer 4.0L auto shift
first time asker please bare with.have codes p1804 hi shift circuit fail.[...] speed sensor circuit fail.replaced sensor&shift motor cleared codes road test hit 50 same problem isthere a tsb or something iam over looking like i said first timer asking		 View
1999 Ford Ranger 3.0L anti thieft
!!HELP!! This truck came in for a fuel gauge stuck on full. I jumped the sender wires at the tank to see if the gauge would move. I must of jumped something wrong. I blew the, (I think?) #10 (7.5) fuse and now it's stuck in anti-thieft. I had the battery disco...		 View
1999 Ford Expedition 4.6L computer
ok ford guys once again we need you and your expertese. we have a 1999 ford expedition in our shop for a miss fire repair that turned out to be coolant down in #5 spark plug hole. the intake gasket is leaking right at the left front corner.we get the intake ga...		 View
2001 Ford F-150 4.2L motor swap
i have a custmer that wants me to put a 3.8l out of a 2001 mustang into a 1997 ford f150 with 1 4.2l. never swaped motors quite like these before. can it work with no headaches!! what needs to be done. can i swap every thing from the 4.2l to the 3.8l block? or...		 View
2003 Ford Explorer Sport Trac 4.0L No Start
Hello, I received this wonderful Ford from another repair shop. Over the past four months, 3 Motorcraft fuel pumps have been installed. If you haven't already guessed, it needs another. During my testing, I manually ran 12v power and ground to the fuel pump. Y...		 View
2003 Ford F-150 4.6L central timer
hi guys customer came in complaining battery dies, upon cheking found battery had about a 205 milliamp draw.illiminated it down to generic central timer module,by removing battery saver relay draw drops to about 56 millamps interior lamps gets power from this ...		 View
2005 Ford F-250 Super Duty 5.4L speedo. tack.temp.volt gauges
hi this truck came into my shop with check gauges light on .. no tack speedo temp. volt.. the eng light is on too with the abs light. the truck runs fine. i checked eng. codes ...no communication trans codes... no communication transfercase code no communicati...		 View
2005 Ford F-150 5.4L Misfire, MIL Lamp on
Hello techs: This truck has a misfire always although it runs fairly well. Codes P0171 and P0174 are present and also P0345 and P0349 related to cam position sensor on bank 2. We replaced VCT solenoid for bank 2 with no difference. We noticed a lot of oil gunk... Trouble codes: P0171 (Lean Bank 1), P0174 (Lean Bank 2), P0345 (Cam Signal), P0349 (CAm Signal).		 View
2003 GMC Sierra 1500 5.3L instrument cluster
Hi: Instrument cluster has been replaced 3 times for various inop concerns. Last two clusters have had the trip odometer reseting to 0 when the truck is turned off. It does not have steering wheel controls. Everything else works fine. What are we missing? I k...		 View
1996 Honda Accord 2.2L No Start
thanks in advance for any help.vehicle died while driving wont restart.has good fuel pressure.intermitent spark.coil ohms in spec.good waveform from crank sensor.no rpm on tac when cranking.replced igniter.when noid light connected to injector harness vehicle ...		 View
1998 Honda Civic 1.6L Ignition
This car start and runs good in the morning for about 3-4 mins.then it may restart or not!Anyway it won.t stay running till it sit over night.It has no spark when it won't restart,PCM,Distributor,& ignition switch have been replaced.Thanks in advance. Thanks ...		 View
2001 Hyundai Tiburon 2.0L No Start
Have checked all powers and grounds and all ok. When scanning computer iat says -40 and no rpm. When key is on iac is always on. computer turns on engine control relay but not fuel pump relay. I have tried putting in a used computer with same results.		 View
1997 Jaguar Vanden Plas 4.0L accessory memory
Greetings, Had this vehicle in a few months ago to fix inoperative adjustable steering column and mirrors.Solution was to install a used column and mirror ecu.However,the memory for the seats and mirrors didn't work.When you pressed the memory button with the...		 View
1996 Jeep Grand Cherokee 4.0L dic
Greetings all! The driver information center displays at warning"COOLANT SENSOR BAD". We have changed both the level and temp sensors and still it has the warning display, just not all the time. I'm thinking there's a problem in the module running the thing? I...		 View
1999 Land Rover Range Rover 4.6L engine
the dealer tells me that it is very common for the block to be cracked. my question is. since ford bought land rover in 2000 is this engine the same as the ford 4.6 bare block and heads or just bare block thank you.		 View
2001 Lexus RX300 3.0L 1-2 2-3 shift
Had transmission overhauled about three thousand miles ago. Originally had a late one two shift. The car is back now and hesitates jerks and shudders between shifts. No codes stored in any module. The transmission was badly broken prior to overhaul. Many hard ...		 View
2000 Lincoln LS 3.9L cooling fan
hey guys got another good one. Thanks in advance for all the help. I got a 2000 lincon LS the fan is not working on high speed or low speed it does turn some just not fast enough. I know it is hydraulic cooling fan. The fan motor was leeking and replaced. When...		 View
1993 Mazda MX-3 1.6L driveshaft
i have here a driveshaft that will not come out of tranny. anybody ever had this problem b4 please shed some light on the subject. i have tried to remove the other driveshaft to use the spec. tool but both will not come out. i have welded hooks and used slide ...		 View
1973 Mercedes-Benz 280SE .0L kingpin
Hello,I need some old school Mercedes techs advise.I am installing kingpins on this VERY nice old 280 SE.I used Billstein kits and had them reamed in by a very competent machinist.My problem on assembly is getting the kingpin end play adjusted correctly. I am...		 View
1999 Mercedes-Benz SL600 6.0L a/c
After 30 minutes of driving on the highway, then arriving at destination, the vent temperature will begin to warm up and at times a slight vapor is noticed from the vents. System has been inspected for refigerant level and level has remained full throughout th...		 View
2001 Mercury Sable 3.0L Misfire, MIL Lamp on
hey guys. got this 01 sable with the dohc 3.0. misfires intermittently on # 4 cylinder. ignition system is in good shape as is the engine itself. a scope isn't available to me, so i used a stethoscope to determine that #4 injecter goes away sometimes. i swappe... Trouble codes: P0340.		 View
2002 MINI Cooper 1.6L radiator fan
this Mini fan runs continuously after engine shutdown. The problem is intermittent and (of course) it won't act up for us so that we can properly troubleshoot. Most of the time, the fan cycles on/off as normal. Pulling the relay in the fuse/relay panel doesn't...		 View
1998 Nissan Altima 2.4L Excessive Emissions, Poor Idle Quality, Cuts out, Misfire, MIL Lamp on
Hey all and God bless all of IATN... I have an Altima with a 2.4. Customer stumbled in today in route to a wedding. The car had been tuned up a couple of weeks ago by their home town mechanic and I found no problem there. The code is random and multiple misfir...		 View
1999 Oldsmobile Cutlass 3.1L Stall, MIL Lamp on, INOP TACH
have replaced 24x sensor. inspected wiring harness from computer to sensor. found no problems. tach reads zero at all times. tech 2 readings at 24x sticks at 9108 or 108. sets the code immediately when the ignition is turned on. customer complained that the ta... Trouble codes: P0336B.		 View
1997 Plymouth Voyager 2.4L odometer
hello fellow techs this one is a good one when i start the van and turn off the display for the odometer stays lit i checked there is no time out for it. sometimes when i turn key on than off (with the engine off)it will turn off. and i test the fuse #2 for pw...		 View
1989 Pontiac Grand Prix 3.1L Hesitation, Cuts out, Stall
The car came in as a no start 2weeks ago.Installed Crank sensor and ran good.Now car comes back with no codes as soon as you give it any gas dies out.I checked fuel pressure and was good.I disconnected the exhuast with no change.I ran a scope pattern on the in...		 View
1997 Saab 900 2.0L Pressure In cooling
Hello Friends Customer bought this car sight unseen, in another state. Car has no power. Found turbo not working. found hose to intake manifold blown off. Customer hooked up the hose. Turbo seems to send pressure to the engine cooling system, which blew the ... Trouble codes: N0ne.		 View
2002 Saab 9-3 2.0L Speed sensor
ABS/TCS lights continue to come on with same code c1386 RT rear wheel speed sensor signal incorrect. Driving vehicle monitored sensor with tech2 sensor reads the same as all the other sensors. Replaced sensor and let vehicle go to return after 24hours with sam...		 View
1984 Toyota Pickup 2.4L alternator
Hi all. I have a 1984 Toyota truck that will not charge. Originally the truck was a no start no crank. It had headlites but nothing else. The connector hear the left headlite was toasted so I soldered and shrink wrapped each of the four wires and discarded the...		 View
1994 Toyota Pickup 2.4L alternator
Hi all. First off let me say that this truck is carbureted and only a four speed. iatn didnt show these options, neither did my alldata. Picked up this truck as a no start-no crank. Had no power except to headlites. Connecting plug near left front headlite whe...		 View

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1992 Buick Roadmaster 5.7L Unknown
THANKS TO ALL THAT RESPONDED- WE REMOVED CAP AND ROTOR - THAT ALLOWED ENOUGHT ROOM TO LIFT ENGINE TO REMOVE PAN. GREG AAND CREW		 8
1989 Cadillac DeVille 4.5L Fuel data display
Thanks to Robert[IN],Michael[NY],Ed{NJ},George[RI].Robert suggested a bad CCM but this car does not have one. Michael thought there could be a failure on the clock or data circuits from a bad BCM. Ed suggested another capacitor. I failed to mention that I had ...		 4
1974 Chevrolet Corvette 7.4L Start up and shut down
Thank You all for the info and wiring diagrams.The fix was the cooling fan wiring . The person who wired the fan used the grab and run method of wiring.He caused both of the problems by grabbing the wire that ran to the distributor ,from the starter R terminal...		 45
1997 Chevrolet malibu 3.1L fuel guage
will use this info when vehicle comes back in again thanks for the outstanding response did not know this was such a common problem thanks guys and iatn u are great 		39
1999 Chevrolet Cavalier 2.4L clutch petal
thank you all for your replies . we just kept bleeding the system & it finaly worked . the next time i will try the reverse bleeding first & hopfuly save some time .		 8
2000 Chevrolet Blazer 4.3L trasfer case
thanks to every one the problem was the module in the right side kick panel had no clue without iatn help i had no codes at all and was an intermintant problem		 9
1992 Dodge B350 5.9L coil
Circuit # 11&12 Power ground was bad it would not carry a load. Replaced the ground and retested, Then everthing was fine. Thanks for all the help.		 5
1995 Dodge Intrepid 3.5L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, Cyl #3 & 5 Dead
Everyone who said lower intake manifold gaskets was right on the money. When I pulled the manifold I decided to measure the valve spring installed height in bank 1, and they were all within spec. Ruling out tulliped valves. I soaked the valves and cylin...		 7
1996 Dodge Grand Caravan 3.3L Hesitation, Cuts out, Stall, MIL Lamp on
Well this one is headed out on vacation in the morning, customer has had it long enough to have road trip confidence! Replies included wiring/connectors, fuel pump, flywheel, crank sensor and pcm. Had already been through everything mentioned more than once an... Trouble codes: p0106 (Baro sensor voltage out of range on key on).		 6
1997 Dodge Ram Van 5.2L transmission
looks like its going to have trans repair done in stead of trying to make the swap.just was woundering if it was possible.thanks for input		 3
2000 Dodge Caravan 3.3L All gages
Out of the 6 responses received 5 refered to the instrument circuit board cluster. After calling dealer for parts price - stated that on Caravans that circuit boad goes out on instrument cluster is very common. We advised the customer of the problem. Thank ...		 6
2004 Dodge Ram 1500 Truck 4.7L Misfire, MIL Lamp on
most of ya'll were right on the money. i found a coolant leak in the intake it showed up today with a small smell out of the tail pipe and a leak down test so hopefuly this will fix it and i will not see the truck again intill the next 30k service. thank you f... Trouble codes: p0300 (misfire), p0302 (misfire cyl 2).		 6
1990 Ford Ranger 2.3L No Start
Alright guys, I guess I needed to go back to basics, I actually went out and bought a new vantage pro for this truck. Tested dual crank sensor, good pattern, checked tps, also good. recheck timing marks on timing belt, ok. I finally called customer back to att...		 14
1996 Ford Bronco 5.0L No Start, Stall
I believe the pickup coil in the distributor was the culprit to begin with( I caught it withe the Vantage), and getting the wrong ignition module added the P1351, which is a 2 trip code, and came back after every second start. After getting the correct igniti... Trouble codes: p0320 (pip), p1351 (Ignition system).		 3
1997 Ford Ranger 2.3L MIL Lamp on
THANKS TO ALL WHO HELPED. WE FOUND THE MAF SENSOR FAILING INTERMITTENTLY, REPLACED AND NO MORE CODES. Trouble codes: P0171 (system too lean b1).		 16
1997 Ford Expedition 5.4L Poor Idle Quality, MIL Lamp on
Found that the pcm was intermittantly not grounding the tps circuit replaced pcm with used one same numbers for 75.00 roadtested for 75 miles no problems occured.thank you everyone that replied you input was very helpful. Trouble codes: P0122 (Throttle position sensor A circuit low input), P1120 (TPS out of range low), P1121 (TPS inconsistant with MAF).		 8
1997 Ford F-350 7.3L case, flywheel
IT WAS IN FACT THE FLYWHEEL. THANK ALL OF YOU FOR YOU QUICK AND ACURATE RESPONSES. I HAD NEVER SEEN THIS BEFORE BUT AFTER REMOVING FLYWHEEL IT WAS PLAIN TO SEE THAT ALL THE BALL BEARINGS HAD SHIFTED TO ONE SIDE OF THE BEARING RACE WHICH HAD THROWN THE FRICTION...		 10
1999 Ford Crown Victoria 4.6L Air Bag Light
Thanks to Stanley [...] and Edward [...], who were right on. The problem turned out to be very simple--a missing fuse. But the story behind it is also pretty good. Before I started on this job, I spent time looking at the archives, to see all the possibilties...		 8
2000 Ford Windstar 3.8L abs
Information offered by professionals is very useful. However, I decided to giveup fixing because a tech recommended to download and upload when replacing the ECU. I do not have the equipment. Bleeding recommendation is very interesting. If the customer comes b...		 5
2000 Ford F-150 5.4L Misfire, MIL Lamp on
Thanks again to all who replied. You guys are what makes this a great tool. Samuel hit this one on the head. I did a block test first thing this morning on it and it failed. Let truck sit whith pressure tester on cooling system and it had a tiny leak that ... Trouble codes: 301 (misfire [...]).		 12
2000 Ford Crown Victoria 4.6L Mechanical
Thanks for all the advice. I used new head bolts, but not the rods or mains,The local jobbers and dealers could not supply the rods or mains(back order only from the dealer). several machine shops that i called never used new ones either.this as well as some r...		 14
2000 Ford F-350 Super Duty 7.3L No Start
THANKS FOR ALL THE REPLIES(A COUPLE OF YOU HIT IT ON THE HEAD)AND SORRY FOR NOT POSTING FIX SOONER,BUT WANTED TO MAKE SURE THIS THING STAYED FIXED. THE PROBLEM WAS THE FRAME MOUUNTED FUEL PUMP,IT WOULD RUN SOMETIMES AND LUCKILY LOCKED UP WHILE TESTING FUEL PRE...		 15
2000 GMC Jimmy 4.3L brake lights
thanks to everybody who replied, replaced the multifunction switch and everything works fine.just wondering why a $30 to $40 switch cost over $200. jay		 10
1996 Jaguar XJ6 4.0L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on
The vehicle is fixed! Customer reports it running better than ever. I am thrilled with the way it runs driving it back the 50 miles from up North at the dealership. Here is the breakdown. I've covered the replies through #6 for the most part in the upd... Trouble codes: P0300 (Multiple cylinder misfire detected), P1314 (Bank 2 catalyst damaging misfire).		 7
1994 Jeep Cherokee 4.0L Hesitation, Cuts out
Thanks for the help guys. A few mentioned the MAP sensor, but it checked out fine ( it was new in fact). I gave the Jeep the once over myself today and found an intermittant open circuit to the injectors. The harness would flex on accel. and cause an open in t...		 2
1999 Jeep Cherokee 4.0L MIL Lamp on
Well, here's one for the books!!! Turned out to be a short circuit in the clock spring on the column. Seems that it sends voltage back down the cruise control circuit. (Even though this car does not have cruise control the wiring is still there. We all know ab... Trouble codes: P0123 (TPS voltage too high), P0121 (TPS does not agree with MAP).		 8
1991 Lincoln Town Car 4.6L Spark plug holes
Thanks guys, your information is highly valued. This car only sees the odd trip to the grocery store, so we won't be seeing it for quite some time. At first I only changed the wires on the passenger side bank (this was the side that didn't have coolant in th...		 12
1990 Mazda B2200 2.2L drive shaft
Thanks to everybody that replied. We cut the drive shaft at the proper length, and then made up a jig to allow us to re-weld the end on straight. The vibration that was left was very minimal however we played with the balance of the shaft using hose clamps a...		 6
1991 Mazda B2200 2.2L MIL Lamp on
again,thank you to everyone who replied and the great advice we received.it turns out that replacing the pcm 3 times finally did the trick.apparently we were getting a pcm off of a 2.6 instead of a 2.2.we finally received the correct one and voila!! code 12 go... Trouble codes: 12 (tps or circuit).		 5
1996 Mercedes-Benz E300 3.0L Starting
Thanks to everyone who replied,i changed the K40 Overvoltage protection relay and all was well could communicate with all control units,and problem is fixed.I did have all lights in the dash working as Pat had asked me, Thanks again.		 6
2003 Mercury Sable 3.0L MIL Lamp on
THANKS FOR ALL THE HELP FROM EVERYONE WHO RESPONDED. AFTER 3 DAYS OF GOING OVER EVERY POSSABILITY I COULD NOT FIND A SOLUTION. WE SENT THE CAR TO A DEALERSHIP TO CHECK AND SEE IF A PCM OR A SOFTWARE UPGRADE WOULD HELP. Trouble codes: P0172 (system rich bank 1), P0175 (system rich bank 2).		 12
1997 Nissan Maxima 3.0L compressor
THANKS EVERYONE FOR ALL THE REPLIES, WHEN EVACUATED AND INSPECTED SYSTEM, FOUND EXTREME AMOUNTS OF OIL IN EVAPORATOR, CONDENSER, AND RECIEVER DRIER. NOTICED A MILKY LOOKING SUBSTANCE IN RECIEVER. DETERMINED THAT THE RESTRICTION EVIDENTLY CAUSED BY TO MUCH OIL ...		 7
2001 Pontiac Bonneville 3.8L rear air ride
Since this post the car has not returned for further diagnosis. Thanks to all who sent responses.		 8
2001 Pontiac Sunfire 2.4L Poor Idle Quality
Iac count at an idle is 105 cnts. Even on start up engine idles higher than 1500 rpm. Used iac tool Iac appears to move in and out ok. If i disconnect the battery for an hour or two It will idle ok for about an hour on my way home. I also make a mistake the pr... Trouble codes: p0122 (throttle position sensor).		 8
2002 Subaru Outback 2.5L p1698
We ended up installing a transmission control module and the vehicle has been gone over one week with no code returning. Thanks for your help.		 3
1989 Toyota Camry 2.0L Stall
thanks to all for the ideas. I put a toyota coil on it and the next day it acted up. I did not think I was going to make it back. It lacked power and kept dying. I got it back to the shop and put a fuel pressure gauge on it. It hasn't failed since. The check ...		 10
1989 Toyota Pickup 3.0L Poor Idle Quality, Misfire
well it's fixed it was a prexisting condidion that caused the burnt valves. I had 4 clogged injectors I replaced all six. Thanks to every one and their input I double checked the valves and all were in spec did running comperssions all was well there so I r&r ...		 10
2002 Toyota Highlander 3.0L timing belt
You were right! Thanks for all the help, it was missing the hollow dowel pin in the block. According to the customer the engine has never been worked on. I guess the factory forgot it. Thanks again Chris Byrne.		 6
1996 Volvo 850 2.3L A/C compressor
Several of you were right on the money. After looking at the wiring diagram closely AllData showed a diode in the relay which Mitchel didn't show. The way the diode was oriented would mean that power came from the ECM. This proved to be wrong. We removed the E...		 14
2000 Volvo C70 2.4L power convertable top
THANKS TO ALL WHO REPLIED! AFTER THE REPAIR (COVER LATCH MOTOR) IT DID SEEM THAT THE MODULE DID NOT KNOW EXACTLY WHAT POSITION THE TOP WAS IN, AND WOULD STOP THE PROCEDURE. WHEN I READJUSTED THE MICRO SWICTHS IT WOULD FINISH THE CYCLE, BUT WOULD STOP AGAIN WHE...		 6
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next