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Prev Professional Automotive Repair Technical Discussions for September 2, 2004
International Automotive Technicians' Network (iATN) - Members Only
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Help Request Answers
1987 Acura Integra LS 1.6L Excessive Emissions VIN: JH4DA3455H
Hi group, I've got another japan car that I need help on. This little acura came in because it will not pass local emission testing. No codes present and it will set a code if I unplug the temp sensor. Ignition base timing is dead on 12 deg, vacuum lines are i...
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1993 Acura Legend L 3.2L Engine VIN: JH4KA8262P
Have an Acura Legend that has excessive vibrations in drive or reverse. Replaced 2 transmission mounts, no difference. We support the engine front and rear with jacks, vibration doesn't seem to change. Noticed alot of vibration in the left front wheel when in ...
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1995 BMW 325i 2.5L fluid level VIN: WDBGAS1E1S
Hello BMW Techs. I have a question concerning the proper procedure to check and refill the transmission fluid on this automatic, the transmission cooler lines was leaking and replaced, but how in the world do you refill these without a dipstick. I saw a post f...
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2000 Buick LeSabre Custom 3.8L tcc apply VIN: 1G4HP54K1Y
hello trans guys, this is my problem. my customer came in and said her car "jerks or skips" sometimes. i thought i would find an ignition miss,but that is not the case. what i am finding is that the car will shudder at the end of the tcc apply. i right away fi...
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1992 Cadillac Fleetwood 60 Special 4.9L No Start VIN: 1G6CG53B4N
This vehicle starts, then stalls immediately. My noid light flashes for a second then stops causing the car to die. I have only code 52 (ECM reset). It seems like a theft deterent system problem to me. The car cranks O.K, so the theft det. relay and the Pass K... Trouble codes: 52 (ECM reset)
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1994 Cadillac Seville SLS 4.6L no 3-4 shift VIN: 1G6KS52Y7R
this car shifts great 1,2,3, then when time to shift to 4 goes into limp in mode and check engine light comes with code po94. changed solnoids same problem. I have 12 volts to solnoids and when computer grounds them they will still have 12 volts on one side an...
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1979 Chevrolet LUV 1.8L voltage regulator VIN: CLN1498297
Vehicle came in with a complaint of won't idle and charge light on. We found that the external regulator was blown wide open and alt was charging in excess of 16 volts. We changed the regulator, vehicle would idle and max output was 14.5 volts. Released vehicl...
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1982 Chevrolet Corvette 5.7L No Start, Contamination VIN: 1G1AY8781C
This C-3 is worth plenty of money...once it runs. Extremely low miles, mission is to get it running. Unfortunately the fuel tank sender and pump assembly has rusted off in the tank and severe contamination is evident. Although there is rust in the tank it appe...
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1991 Chevrolet Lumina Euro 3.1L Cuts out, Stall VIN: 2G1WN54T2M
Thanx in advance for any help all right you g.m. guys we have so much diagnosise time in it isn't funny. loosing our hair this lumina will start and idle. when hooked up to the snap on scanner when the car is dead cold scanner says that the cat temp is 766 deg...
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1994 Chevrolet S10 Blazer Tahoe 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1GNDT13W2R
vehicle is flooding out. Intake is filling up with fuel on the drivers side ( the side with the supply lines) I have replaced the injector and regulator with an ac delco. I have also replaced the fuel supply lines. I have pressuresed the fuel sustem with the p...
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1995 Chevrolet S10 2.2L Poor Idle Quality, Hesitation, Cuts out VIN: 1GCCS144XS
the vehicle came in and was not running- customer had purchased vehicle from a junk yard- We inspected the vehicle and found that if we tapped on the ECM, it would either die or smooth out considerably- found that the CTS was disconntected and packed with dirt... Trouble codes: 15 (coolant temp sensor), 34 (map sensor I caused this one trying to see if ECM works), 22 (tps sensor), 54 (fuel pump relay or circuit)
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1996 Chevrolet K3500 Cheyenne 7.4L Unknown VIN: 1GCHK34J2T
Hi everyone, I am working on this one ton pick-up with a 4L80E transmission.It seems to have a couple of intermittant problems. First of all, the trans will upshift into 2nd gear and hang in 2nd gear. Sometimes it will go ahead and upshift through the rest o...
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1998 Chevrolet K3500 Cheyenne 7.4L climate control VIN: 1GCHK39J7W
thanks in advance; i need a wiring schematic, for climate controls, replaced evaporator drier orface tube flushed system evac and recharged system, system works mechancaily if someone has the schematic my fax number is [...]. thanks again for any help
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2000 Chevrolet Impala 3.8L Hesitation, Stall VIN: 2G1WF55KOY
vehicle will start and stumble ,sometimes die occasionally will have loger than usual crank time till starts fuel pressure on spec no codes set, other times sarts as if it was new
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2000 Chevrolet Impala LS 3.8L rpm flares up VIN: 2G1WH55K6Y
this impala(wh model)about once per month during idle the rpm will race to well over 2,000 rpm of it's own accord, but for only a few seconds. the first time this occured there was nobody in the car and the engine raced twice in neutral. then at least a month ...
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2003 Chevrolet Trailblazer LTZ 4.2L door locks VIN: 1GNDS13S03
customer wants to add keyless entry... front door lock are normal wiring rear doors work off serial data. I was wondering if bcm can be reprogramed? One of my guys used to work at a dealership and he said it could be. Any ideas and help would be appreciated.
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1996 Chrysler Town & Country LXi 3.8L Cuts out, Stall VIN: 1C4GP64L9T
I've been working on this van for a week. The van will lose power and start surging after driving for 4-8 miles. Will last for 10-45 seconds then will run perfectly. It may or maynot repeat on same trip. Let it set for at least 1 and 1/2 hour and will repeat a...
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1996 Chrysler Town & Country LXi 3.8L Accessories VIN: 1C4GP64L7V
hi group got a very strange one here, when you push either memory seat button or the lock or unlock button on the factory alarm the power seats and power mirrors start going all over the place, seat will fully decline flat and mirrors will go all over, when yo...
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1997 Chrysler Intrepid 3.5L Cuts out, Stall, Poor Fuel Economy VIN: 2C3HH46F4V
customer brought vehicle in with complaint of rough idle, stalling and hard on fuel. Checked for codes,none detected. Road test vehicle with scan tool and found that when vehicle went into closed loop the 02 sensors would go to 1.0 volts, not change and map va...
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2000 Dodge Ram 2500 5.9L oil pressure gauge VIN: 3B7KC2362Y
the customer is complaining of the oil pressure gauage droping to zero when driving down the road, he also claims that the gauages no longer drop to zero with the key off and that they use too. i have no way of knowing if this is correct or not maybe one of yo...
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2002 Dodge Neon ES 2.0L speedometer VIN: 1B3ES56C12
Customer came in and said that since her Dad replaced her battery, her speedometer stopped working. Actually there are at least 2 gauges not working, I think the other is the fuel gauge. There are 2 large gauges in the center of the dash. The one, left of cent...
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1991 Ford Ranger Custom 4.0L No Start, INJECTORS NOT FIRING VIN: 1FTCR15XOM
i have no power to injectors. haynes manual shows lt. green/wht wire for injectors 123. tan/red wire for injectors 456. these wires go directly into eec module. wires were tested for power with a result of no power.i ran a direct wire @ f/p to get fuel going. ...
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1992 Ford F-350 Custom 7.5L vent ing of a/c VIN: 2FTJW35G9N
on long hard pull up hill a/c vents thru defrost instead of a/c vents.i have driven trk & cannot get this to happen, but happens often to cust
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2000 Ford Expedition Eddie Bauer 5.4L 4wd, abs VIN: 1FMFU18LXY
Hello Brain stormers, Problem with Expedition is I cannot duplicate the symptoms but customer brought vehicle back saying it has never been fixed and feel like it is unsafe to drive. Their only description is that it feels like the 4wd kicks in and things get ...
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1986 GMC G1500 Vandura 4.3L flywheel VIN: 2GTCG15N7G
Hi guys. Sorry to bother you with such a basic problem. this truck eats flywheel at a glutenous pace. 5 in three years. We got this from another shop. the last fly wheel lasted one month. they all break the center out of them. there seems to be a large amount ...
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1997 GMC K1500 Sierra SL 5.7L Cuts out, Stall, Misfire, backfire through exh VIN: 1GTEK19R2V
This one only gives us 20 minutes or less to diag. It will straighten up & run well after a 10 min run and only after It has set overnight. If it sits all day it is ok. Only an overnight sit will the symptoms occur as follows: When taking off it will backfire ...
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1997 Honda Civic EX 1.6L Hesitation, Misfire VIN: 2HGEJC341V
All plugs are burning good and no spark jumping at boots. Feels like a TPS but not droping out. If you slowly accell no hesitation but if you stomp on it the engne spits and sputters the picks up. Under a load the problume is more noticable.
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1998 Honda Accord LX 2.3L temp. gauge VIN: 1HGCG5646W
vehicle arrived with temp. gauge pinned on h. checked ohm reading on sensor according to mitchell on demand when cold reading was about 130 ohms when it warmed up reading was about 45 ohms. and needle stayed on h.customer had a gauge and a new sensor and insis...
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1994 Isuzu Trooper S 3.2L limp-in VIN: JACDH58V5R
this trooper about half of the time as soon as start engine and select gear will start the check trans light flashing, the only codes it sets are a 55, 53 which are gear indication and brake light switch, according to alldata neither code will light light or p...
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1989 Jeep Cherokee Limited 4.0L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 1J4FJ77LXK
This vehicle was brought in after the owner replaced the fuel pump and filter for a interm. no start condition. Now the vehicle hesitates , pops and boggs down. I scanned system for codes and found none to be present at this time. Checked tps and found it to b...
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2002 Jeep Wrangler Sport 4.0L MIL Lamp on VIN: IJ4FA49SX2
Now Jeep is back with a PO455 - Large Leak detected. Did visual check and all looks good. Used leak detector and found nothing (ran it over fuel tank and down all evap lines). Pulled diagnostic info from SHOPKEY and the procedure to check calls for a special t... Trouble codes: P0455
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1990 Mazda MPV Passenger 3.0L fuel gauge VIN: JN3LV523XL
Hi all this one has us stumped. The fuel gauge works fine from full to half way point,then the guage nose dives to empty even though there is almost a half tank of gas
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1994 Mazda MX-6 2.0L Hesitation, Misfire VIN: 1YVGE31AOP
car hesitates and misfires when cold. after warmup hesitation and misfires go away. no codes, and cant get any data. checked ignition, plugs are gapped correctly, but have white tips. other ignition looks ok.
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1987 Mercedes-Benz 300SDL 3.0L Engine VIN: WDBCB25D9H
Hallo. Need some machine shop specifications please. This Feb of 1987 300SDL ( 2996cc, OM603.961 ) arrived with a damaged engine due to oil pump being jammed with small bronze object. Still have not identified it's origins yet. My machinist needs the followi...
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2000 Mercedes-Benz C220 CDI .0L R/H side lights VIN: WDB2021932
HI We have in a UK RHD Merc C220 estate. The fault is that the R/H side lights front & rear don't work or parking lights & the bulb monitor is not showing a failure. Fuse goes live with switch, if you power front or rear bulb up in place the other end lights....
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2001 Mercedes-Benz S600 5.8L Oil in Eng Harness VIN: WDBNG78J71
This car came in for regular maintenance and while changing the plugs we noticed several of the engine harness connectors, including the camshaft sensor, ignition coil, ignition module, and oxy sensor connectors appear to be contaminated with engine oil. The E...
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1988 Nissan D21 SE 3.0L Excessive Emissions VIN: 1N6HD16Y2J
ive got a high co &hc problem only when the truck goes for a dino emissions test under a load. vehicle came in with timing belt jumped one tooth on one cam sprocket--hcs were high at idle--fixed belt.also found oxygen sensor code--installed new sensor. we thou...
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1994 Nissan Sentra E 1.6L Hesitation, Surge, Cuts out, Misfire VIN: JN1EB31P2R
Help!!! Vehicle came in to shop with a misfire on initial acceleration and on deceleration at all speeds. Also, the engine pinged badly. Performed major tune-up with new plug wires with all OE parts. Adjusted timing to 10 degrees because it was set too advan...
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1994 Pontiac Firebird 3.4L Wipers VIN: 2G2FS22S4R
Vehicle came in with wipers trying to park in the up position. I have gone through the tests in Mitchell and they lead me to believe that the switch was out. It is not because I hooked up a new one and there is no change. The information about the timing gears...
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1996 Pontiac Firebird 5.7L MIL Lamp on VIN: 2G3FV22PXT
Good day this Firebird came in with mil on,code 0441.I had vacum out of the purge solonoid at all times and turning the solonoid on or off did not make a differance,changed the solnoid and the canister(leaking) and sent the customer on his way ,car came 3 days... Trouble codes: 0441 (Evap systemno flow during purge)
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1999 Pontiac Montana 3.4L Poor Idle Quality VIN: 1GMDX03E4X
has intermitant high idle (1300 to 1600 rpms) there are no codes and the TPS voltage is .48 moving a little to .46 but the TPS % is anywhere from .3% to 5.0% semes like idle will be high when at 5.0% if I turn key off and on it will come down to 3.1% and off a...
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1994 Toyota Camry LE 3.0L sensors VIN: JT2GK12E4R
had chatter in pedal when stopping- pulled codes and only code 32 appeared. rf sensor. replaced sensor and wiped other 3 clean. chatter went away and abs seems good- now light comes on an sets codes 33 and 34 left and right rear sensor codes. could wiping off ...
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1999 Volvo S80 2.9 2.9L MIL Lamp on VIN: YV1TS90D6X
Because I am unable to actually get into the evap system to test the pressure drops I am stuck with my best guess on this one. It is my gut feeling that the vent solenoid is stuck closed which would in turn cause a higher than normal reading in the tank pressu... Trouble codes: P0446 (Evap Vent Solenoid Problem), P0453 (Evap Pressure Sensor signal high)
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Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 323i 2.5L blower motor resistor VIN: WWBAAM3346
first off i apolgize for the delay. as everyone that answered my help request stated the 'hedgehog' unit was behind the glovebox after removing the blend door this was a reasonably easy repair i have to say that without yoy guys my life would be alot harder....
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1994 Buick Park Avenue 3.8L rotors/drums VIN: 1G4CW52L7R
Just received the GM video and book for Teves mark 4,55205.04.1 and don't really see anything there on diagnostics for the hyd system.This mostly deals with the electronic part.Spoke with the cust yesterday and so far ir is not getting as bad as it has in the ...
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1997 Buick Riviera 3.8L No Start, Stall VIN: 1G4GD22K7V
thank you very much for everyones help,i have fixed this one.i replaced the fuel pump,after it finally died completely.
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1993 Cadillac Eldorado Sport 4.6L Poor Idle Quality, Surge VIN: 1G6EL12Y7P
hi guys thanks for your input . i did clean thottle body and did find clogged air passages also proformed idle relearn twice still alittle sluggish but seams o.k. customer took car on vacation have not herd from her as yet Trouble codes: 32 (map sensor low or shorted), 71 (inter map signal).
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1989 Chevrolet Beretta 2.8L Cuts out, Stall VIN: 1G1LV14W8J
After running further test, we decided to try a different injector. So far the vehicle is doing fine. Thanks again for your help.
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1997 Chevrolet C1500 Suburban 5.7L No Start VIN: 3GNEC16RXV
thanks for all the replies, the problem ended up being the old and the new ignition module being bad. we had a signal from the crank sensor ,but we had no pulse on the c circuit wire on coil from control module, but it was new so we checked everything that was...
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1990 Dodge D150 5.2L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy VIN: 1B7CE16Y2L
After trying just about everything we could think of we went and got another o2 sensor this being the third one. low and behold this took care of the rich condition. seems weird but it looks like we had two bad ones in a row. thanks for all of the replies.
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2000 Dodge Caravan 2.4L No Start VIN: 2B4FP25B14
First of all , I am new to asking for help on this system and appreciate the responses recieved. The timing belt jumped time and my assumption is the computer compared the cam and crank signals and reset itself perhaps giving me the intermittent drop in signal... Trouble codes: P1391 (intermittent ckp/cmp signal).
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2003 Dodge Ram 3500 5.9L Mechanical VIN: 3D7LU38C83
rh wheel bearing flange bent causing caliper piston to retract after driving on highway, first application soft due to piston travel being excessive. Strange thing was, no brake pulsation present.Replaced hub bearing. Problem solved.
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1960 Ford T-BIRD 352CID no downshift VIN: 0Y71Y14316
Well fixed tryed 25 stops and ok. went with customer and he thought he died and went to heaven, never shifted so good. special thanks to you guys from Iatn, like Jerry [...], Andre...
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1993 Ford F-150 XL 5.0L Cooling Systems VIN: 1FTEX14N4P
Determined that the problem had to do with circulation because when engine RPM was up temp would go down and when engine RPM was down temp would go up so we replaced the water pump although i could see nothing wrong with the old one. We also took the little ch...
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1995 Ford Windstar 3.8L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2FMDA51485
Thanks for the replies...was the computer. Half the fun was finding it, not where locater said...was up under hood, next to brake booster, not under righr side of i/p. Trouble codes: P0340, P0402, P1400, P1403, P1405, P1406.
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1996 Ford Contour GL 2.5L Hesitation, Cuts out VIN: IFALP67LXT
Thanks for the replies. We recieved suggestions to check coils, plugs, MAF, EGR and possible plenum leak. I did forget to mention that last year customer had a similar complaint, but with misfire codes also. At that time we put plugs and wires in and were happ...
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1997 Ford Explorer Eddie Bauer 4.0L Jackshaft Chain Tensioner VIN: 1FMDU32E3V
This was a no win for everyone, the customer's warranty ran out 4-18-04. When the left Cassette Guide broke it jumped time and bent the four valves on that side (120 Lbs left cylinders and 160 Lbs right side cylinders). As far as the rattle from the Jackshaft ...
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1998 Ford Ranger XL 4.0L Poor Idle Quality VIN: IFTYR14X9W
Thank guys for replying. The problem was a bad Sparkplug in cylinder number 4. The insulator had a hairline crack in it. The customer installed them. This morning the truck ran fine and hc was at 34ppm .06. That ruled out intake leak in my book. I did swap plu... Trouble codes: P0304.
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1999 Ford Expedition Eddie Bauer 5.4L Suspension VIN: 1FMPU18L6X
New tires w/6ply sidewalls max air pressure helped. The owner is happy.
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2001 Ford Explorer Sport Trac 4.0L Calipers VIN: 1FMZU77EO1
I appreciate the help from Scott, Gordon and Gregory fror your helpful hints. But as it may we unfortionatly the brake calipers we got were defects. We got new calipers and they work fine. I was making sure I didn't miss something. I am in no means a Ford man....
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1994 Geo Metro 1.0L No Start VIN: 2C1MR2466R
thank you all very much for your help. the problem turned out to be an open in the ignition signal circuit(brown wire between the pcm and the noise suppressor filter) replace wire and it now runs. thanks again Trouble codes: 41 (ignition signal).
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1991 Honda Accord LX 2.2L Lamp Out Indicator VIN: 1HGCB7658M
We received 8 replies. Thanks again for your help. The suggestions were Lamp Out Sensor, Faulty Grounds, and Wrong Bulbs. We still have no solution. Customer said as long as the brake lights are working she is not concerned about the lamp out light. When we ge...
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1997 Infiniti Q45 4.1L MIL Lamp on VIN: JNKBY31A4V
After trying to energise the cam solenoids with a solenoid buzzer and getting no response, I removed them and rapped them against the vise a few times, and they came back to life. The solenoid noises and idle stumble we heard (just one time and not since) must... Trouble codes: P1110 (Variable cam timing system fault), P1135 (Variable cam timing system fault).
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1997 Kia Sportage 2.0L Poor Idle Quality, MIL Lamp on VIN: KNDJA7236V
Got pretty sick of this car. Pulled intake to check wire splice that was supposedly a recall issue- ok. Cleaned the throttle body and replaced all of the plenum gaskets while we were at it. Another tech looked at the scan values and suspected the map sensor. R... Trouble codes: P0101.
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2001 Lincoln LS 3.9L Extended cranking VIN: 1LNHM87A51
The fix was indeed a leaking injector. The initial complaint of extended crank times led me to hook up a fuel preesure gauge right away, but 40 to 0PSI in 3MIN is a no brainer on return systems, returnless systems led me to the books, AllData, and finally to y... Trouble codes: P0301 (Cylinder 1 Misfire).
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1991 Mazda B2600 2.6L front crank seal VIN: 2M2UF3149M
I came in this morning with a clear mind as to what might be wrong with this vehicle and after numerous checks found something that I completely overlooked, engine blow-by. This engine has a tremendous amount of blow-by which after running for 30 seconds or so...
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1976 Mercedes-Benz 450SL 4.5L Wipers VIN: 1070441203
Many thanks to all that responded. The problem was in the delay relay (part #[...]). This 6 pin relay controls delay and park. The relay is located near the steering colulmn under the dash. I really appriciate the wiring diagram sent to me by fax. It was ...
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1988 Mercedes-Benz 300SEL 3.0L Poor Idle Quality VIN: WDBCA25D3J
thanks to all that sent suggestions. the winner this time was the ignition coil was no good. replace coil and works 100%. thanks again for all the help. john
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2000 Mercedes-Benz S430 4.3L compressor VIN: WDBNG70J2Y
Many thanks for the replies. Looks like Andrew form the UK hit it on the head. Although live data did not show a problem with the ref. press. sensor I replaced it and the ac has been working for 10 days with no problem.
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1999 Mercury Sable LS 3.0L batt. drain VIN: 1MEFM53S6X
thank you techs and iatn, we replaced coolant tank and battery the tank came with the sensor. I was chassing ghosts on this job, lisening to the customer, hes a electrical contractor,tries to do all his own repairs. the radio face works now, but i feel its fro...
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2001 Mercury Grand Marquis GS 4.6L steering box VIN: 2MEFM74W31
Sorry for the delay in getting back to everyone. We get quite busy here. The problem was actually the center link. The stud that the idler arm mounts onto was pretty badly rusted. When we started disconnecting parts of the steering gear, we found that when the...
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1988 Plymouth Horizon America 2.2L Poor Idle Quality, Surge, No high idle on star VIN: 1P3BM18DXJ
I wish to thank everyone for the excellent help you provided. Unfortunately none of these suggestions has helped. I have had to pull off of this job for now due to a severe health problem which landed me in the hospital for several days. When I return to this ...
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1996 Pontiac Sunfire SE 2.2L No Start VIN: 1G2JB1241T
thanks for all the help .turned out to be anti theft modguel. the bigest problem was getting a wiring sch for a 1996 theft system.
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1997 Pontiac Firebird 3.8L brake lights
First of all thanks to all 32 people who took time out of their busy day to lend me some advice. I am almost embarrest to post the fix, I tried the hazzard ( 4 ways ) 1 time, and then brake lights started to work, The button was kind of stiff at first, but I...
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1996 Toyota Avalon XL 3.0L shift sol. VIN: JT1BF12B9T
Thank you to all techs who replied to this request . A special thanks to Mr. [...] of Houston for their extra help . We removed the valvebody from this vehicle after receiving many suggestions , although worded differently , suggested excessive con...
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1992 Volkswagen Corrado SLC 2.8L engine VIN: WVWED450XN
six of the seven responses i got were great.i could not line up the marks on timing chain because a special tool was required.one of the responses pointed this out to me.after using the proper tool all is great now.one person(jerry from texas)responded you did...
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1994 Volkswagen Golf GL 2.0L MIL Lamp on VIN: 3VWFA81H0R
thanks for everithing! all the responces point to the timing belt alignment marks and the distributor relation mark with the rotor , the costumer replace the timing belt 3 years a go and the timing marks were ok. i test drive the vehicle using my labscope en... Trouble codes: 00515 (hall sensor open circuit or short with power), 00513 (engine speed sensor no signal).
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1998 Volkswagen Beetle 2.0L power door locks VIN: 3VWCA21C5X
I would like to thank all of you who responded to my help request. I learned much about the operation of the door lock systems on these cars. the general consensus was that the latch assy. was bad. I replaced the latch and picked up several important functions...
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2001 Volvo V70 X/C 2.4L battery VIN: YV1SZ58D31
We thought we were on to something on this one, and we called the customer to bring it back for further testing--too late--he traded it in on an Accura SUV--said he he couldn't handle the unreliability of the Volvo. Anyway, we got some interesting suggestions,...
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