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Prev Professional Automotive Repair Technical Discussions for February 18, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1997 Acura CL 2.2L Misfire VIN: JHM45DR344
engine always misfires at 2500 rpm. If you avoid hitting 2500 rpm by changing gears sooner then the misfire never occurs. This seems like a computer sensor or program problem. We have never seen one like this and I was hoping someone else has. Thanks Trouble codes: P1300, P1302
1999 Audi A4 2.8L Misfire VIN: WAUED28D2X
This car is a monster! It has had a missfire on Cylinder 1 with a slight lifter tick at times. We have VAGCOM and know how to use it. We have parked a donor car next to it and have a done full transplant of wires, coilpack,ECU's,changed spark plugs, moved inje...
1991 BMW M5 3.6L Poor Idle Quality VIN: WBSHD9317M
I have been trying to get this to idle correctly for about a year. Nothing is hanging up on the mechanical linkage side of the throttles. What I have found is once the a/c snowflake is on this will hang up around 2000 rpm release snowflake it will idle back do...
2000 BMW 740iL 4.4L MIL Lamp on VIN: WBAGH8341Y
has check eng lite on for sec air injection valve actuation and injector 1 actuation car runs great after fixing intake problem replaced both sec air injection valves and relay lite still comes on same codes used gt1 bmw laptop to activate air pump pump works ... Trouble codes: P0412, P0201
1985 Cadillac Seville 4.1L Brake pedal VIN: 1G6KS6980F
Customer complains of low pedal and unsafe feeling. States has always been this way since she's owned vehicle. She has owned it for several years, but not since new. Other shops have told her that's how these cars are, and I would have agreed, except she has a...
1976 Chevrolet Corvette Stingray 5.7L front brakes VIN: 1Z3716S414
Hi, I have a 76 vette that came in with the brakes pulling hard, even while driving in the parking lot, and low pedal.Found the master leaking and calipers leaking. Rotors thin. Replaced master, booster, calipers ,rotors ,pads and hoses. Also replaced leaking ...
1989 Chevrolet K1500 Cheyenne 5.7L MIL Lamp on
hey guys , code 32 keeps coming back have replaced ecm. replaced egr&solenoid replaced lazy o2 sensor cleaned egr passages goes about a week at the time after fix before light returns. what have i missed any suggestions would be highly appreciated thanks guys. Trouble codes: 32 (egr flow malfunction)
1997 Chevrolet Lumina 3.1L Unknown VIN: 2G1WL52M7V
Cust called to make appointment for trans problem. Stated veh was normal until he came to a stop and heard or felt a clunk, and when he pulled away veh had no power. At the next light, veh acted normal again. It acted up a couple more times like that(seemed to...
2002 Chevrolet Trailblazer LS 4.2L throttle VIN: 1GNDT13S02
Hello everyone, we have this 2002 Trailblazer that keeps coming back with fault codes (P1221 excessive difference between throttle position sensors, P1271 excessive difference between acceleator pedal position sensors, P1635 5v ref. A circuit) The first time w... Trouble codes: P1221, P1271, P1635
2002 Chevrolet Tahoe LS 5.3L intermediate steering shaft
One of our customers and several acquaintances with late model Tahoes and the other full size vehicles using the same platform have continuing complaints about a clunking noise under the hood that can be felt through the steering wheel while turning. Most of t...
1994 Chrysler LeBaron GTC 3.0L Surge, Stall VIN: 1C3EU4534R
This car is bizzare. It first came in for a miss which was just bad wires. Then she brought it back with idle probs and we cleaned out the throttle body and found a bent IAC pintle and replaced that. Then it comes back with the current issue which is a surge a...
1996 Dodge B2500 5.9L No Start, Stall VIN: 2B5WB3521T
Good Day I Need some help from the Dodge Boys.I have a full size van with a intermittent no start.When we get it in we find no codes and it will restart when we unflood it. Customer says it stalls when he lets up on it but then restarts if it warm. Our red b...
1996 Dodge Caravan 3.0L No Start VIN: 2B4FP2538T
getting ready to replace fuel pump, but am having trouble draining enough fuel from tank, tried a syphon hose down filler neck, won't go far enough in, removed all lines to fuel pump module, can't suck fuel out that way either, the tank is FULL, older vans had...
1995 Ford Taurus GL 3.0L No Start VIN: 1FALP52UXS
This vehicle ran fine when I got it(Ugh!) Replaced the radiator in a 95' Taurus 3.0 (NOT the SHO). Now it won't start, only cranks. Checked the inertia switch outback, it wasn't "tripped", so I tripped it and reset it. Still no start. found NO POWER to the ine...
1997 Ford Explorer XL 4.0L heat VIN: 1FMDU34X6V
Hi Ford Pro's, this vehicle has broken air temp blend door (in the heater box) and I have the door out - Part# F57H-18B545-AE - AND THE PROBLEM IS: Ford dealer said that you HAVE to buy the WHOLE heater box, you can't buy the door only...the wrecking yard sai...
1998 Ford Taurus SE 3.0L fuel gauge VIN: 1FAFP52U6W
Please help! I have an Taurus with an inacurate fuel gauge. I replaced the sender with no change. Grounds ck good. The wiring to the gauge is good. I verified the gauge with a resistance box. I cycled the key between each change all is good. 135 is full 20 ohm...
1998 Ford Windstar GL 3.8L MIL Lamp on, p0500 VIN: 2FMDA5141W
Hi Ford guys this should be an easy one. (I thought so).What I have is a code p0500 vechicle speed sensor. Anyway went to local parts store bought sensor,(one end looks like end of speedo cable, other end two wire connector(blue). CANT find it. Went to tranny... Trouble codes: P0500
1998 Ford F-150 4.2L Cooling Systems VIN: 1FALP5124W
This vehicle has a coolant leak. It appears to be coming from behind the engine and flywheel. Does this 4.2 engine have freeze plugs between the engine block and the transmission? I know that the 4.6 engines don't have freeze plugs on the backside of the block...
2001 Ford F-150 XL 4.2L hard start, long cra VIN: 1FTZF17211
very intermittent problem. occurs after driving long enough to reach operating temp and then allowed to sit (not running) for approx 15-30 min. when problem occurs it exhibits a longer then usual crank time (5-10 secs) then starts. i fuel and ign systems again...
2001 Ford F-250 Super Duty XL 5.4L Battery
Hi guys, I've got this 01 Ford F-250 with 5.4l and its got key off battery drain that goes away when i pull fuse 15 (5 amp fuse that powers the Generic Electronic Module, brake pedal position switch, instrument cluster, and PCM).I have disconneted the brake sw...
2002 Ford Explorer Sport Trac XL 4.0L Unknown VIN: IFMZU67E81
Hi fello techs: I have this vehicle that came to the shop, the transmission changes good ,but when you select drive 2 0r 1 the vehicle hesitates then after a while will have drive,change normal and everything ,reverse is perfect ,i hpoe someone out there has ...
1989 GMC V1500 Suburban 5.7L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GKEV16K9K
This vehicle was towed in with a rough running concern. It seemed to be missing at times but the most noticeable and easily duplicated concern is a steady surge of about 200RPM at idle in park or neutral and also at higher (ie 2000RPM) RPM ranges while in park... Trouble codes: 44 (Lean exhaust)
1994 Honda Accord LX 2.2L No Start VIN: 1HGCD563XR
This 1994 Accord with a 2.2 SOHC MFI is now a crank but no start. It has been going through a time when it would intermitantly crank but not start. So thats the reason for the rebuilt distributor. Well we got the car in and a tech replaced the timing belt for ...
1998 Honda Accord EX 2.3L all gears VIN: 1HGCG565XW
hello all got a question on this accord just got it from the auction car ran great for the first 100 miles slowed down for construction trans went into nuetral and back into gear. had it transported back here on transport. got p0730 code out of ecm with no rea...
1993 Infiniti J30 3.0L Hesitation, Cuts out, Stall VIN: JNKAY22D1P
Hi guys and Gals I have this head shrinker here. It was bought to me for hard start and no power. It Will start and run poorly when first started and idles good . When you try to power brake it it will not do any thing to breack the wheel and go . It feels lik...
2002 Lincoln LS 3.9L Hesitation, MIL Lamp on VIN: 1FDE4J76HU
Hello all, I have a LS kicking my butt. This thing came in with 5 misfire codes... cylinders 1-5. Starting by replace the spark plugs and replaced 5 coils. Clear the codes and all is well for about 20 miles and then, BAM all the codes come back and it runs ter...
1988 Mazda MX-6 DX 2.2L high idle
Hi all, first off sorry for the lack of a VIN but I forgot to get it before I came home.Anyway , a week ago I had my pastor's car in for an oil change and noticed a small coolant leak , when I let the car back down I noticed that someone had replaced the short...
1995 Mazda 626 LX 2.5L No Start VIN: 1YGVE22D6S
Wondering which of the two ignition faults takes priority, or is more common of a cause on these. Crank sensor, or distributor problem. Thanks in advance to any who take the time to read , and respond. God Bless. Allen. Trouble codes: 02 (No NE 2 Signal CKP sensor 2), 03 (No Distributor G1 Pickup Signal)
1971 Mercedes-Benz 280SE 2.8L heater blower motor VIN: 108.018-12
to the mercedes guys out there would like to know approx time @ procedure to remove heater blower motor looks like you have to remove the whole dash any info would be greatly appreciated thanks much
1988 Mercedes-Benz 190E 2.3 2.3L MIL Lamp on, hard start /blow by VIN: WDBDA28D8J
I found and ran a 2.3L engine in a 1987 190E that was "T-Boned". It had a manual trans, and the seller pulled engine and trans. The following week, I picked up the engine(complete with all accessories) and the radio. The '88's radio is locked out with differen...
1996 Mercedes-Benz C36 AMG 3.6L MIL Lamp on, poor performance VIN: WBHM36E0TF
mb enthusiests please help - we are not very familiar with these cars and cannot find flow charts or much information at all about this system. the first time the car came in it had a p0327 code. we tested the wires from the ecm to the sensor and all was good ... Trouble codes: P0327
1997 Mercury Cougar XR-7 3.8L Poor Idle Quality, Cuts out, MIL Lamp on VIN: 1MELM6244V
this car came in with a check engine light and codes p0171 and p0174 (lean bank 1 and 2). all computer data looked good so i removed air flow meter and cleaned sensing wires as per ford tsb. 2 days later light came back on with same codes. once again, o2 senso... Trouble codes: 171 (lean bank 1), 174 (lean bank 2)
1998 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on VIN: 1G2WP5216W
Engine looses power when supercharger boost comes in. Feels like loss of fuel. Both O2 sensors read the same. No misfire in cyllinders #2 and #6. #4 and #5 miss the worst. Runs perfect unless under load. New spark plugs, fuel filter, air filter. P0300, multipl... Trouble codes: P0300 (multiple cyllinder misfire)
2002 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDU03E42
With key on, all modules have no codes and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ... Trouble codes: U1040, U1040, U1300, C1298
1999 Volkswagen Beetle GL 2.0L MIL Lamp on VIN: 3VWCC21COX
good morning all.I have this beatle in the shop with check engine light on.I was able to pull codes but unable to acess any diag with scan tool (boss didnt buy european cartridge with scan tool due to us being mainly a american made dealer).isthere anything co... Trouble codes: P0411, P1128, P0172, P0301
2001 Volkswagen Jetta TDI 1.9L MIL Lamp on VIN: 3VWSP29M71
This car belongs to my brother inlaw and was scanned at the dealer. These codes were the ones provided by the dealer. I have found quite a bit of info on the P0380 code but i cannot find any info on the P1537 code any help on this would be greatly appreciated.... Trouble codes: P0380 (Glow plug/Heater circuit A), P1537 (Turbo Overboost)

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 BMW 525i 2.5L No Start VIN: WBAHD6324S
thanks to those who offered help. the fix was the crankshaft sensor connector and the idle control sensor were swapped, we used iatn matrix to pay bmw for one day access, and checked voltages and color codes to discover our mistake.
1990 Cadillac DeVille 4.5L Stall, Misfire VIN: 1G6CD5330L
After several hours of testing and retesting and then some hair pulling I got it out of the car owner that she tought the problem was worse after the last shop replaced the distributor. I decided to buy a new one even though I could find nothing wrong with the... Trouble codes: 49 (air injection system problem).
1999 Chevrolet Express 3500 LS 5.7L coolant loss VIN: 1GAHG39R7X
HELLO TECHS the fix for the chevy exp. van was as most allsaid , needed lower intake gaskets.we never saw one thatjust leaked internally , the ends of gaskets completelydestroyed. thanks for all the help on this gave us thestart on getting this job on the book...
2001 Ford Excursion Limited 6.8L 1st and 4th VIN: 1FMNU43SX1
Special thanks to Sherman, he got me thinking about how tight I got those centersupport bolts, they were way too tight. I went completely through trans, all rotating parts were correct and in working order. I learned not to listen to alldata about the directio...
2003 Ford Explorer XLT 4.0L Transfer Case VIN: 1FMZU73K03
I recieved alot of good ideas, most of which I had already ruled out with the exception of the 4X4 module. Since we could never duplicate the problem, the customer and I agreed to wait for the next big snowfall so that we can duplicate the problem with test eq...
1990 Honda Accord LX 2.2L Trans stays on Low gear VIN: JHMCB7654L
Hi folks: I would begin first by thanking everyone who took time to read my post and replied. The replies were very informative, and almost all pointed towards a possible bad TCU. Information I gathered eleswhere confirmed it. I started by taking the TCU out a...
1996 Land Rover Range Rover SE 4.0L Warning Message VIN: SALPV1244T
Thanks to everyone that repleid, Eric from Minnesota, Steve from Great Britain, Allen from Texas and Jim from New York. They all nailed it. I checked the range motor on the transfer case and it was frozen, this lady dirves it in town only and has never shifted...
1990 Lexus LS400 4.0L Sub-Throttle Position Sensor VIN: JT8UF11E4L
Greatest thanks to all members that replied. Ken [...] hit the nail on the head having experienced this same problem himself. Like me, he first replaced the sub-throttle position sensor (my new sensor did not match alldata's specs for resistance readings righ...
1993 Lexus LS400 4.0L Excessive Emissions, Hesitation VIN: JT8UF1LE2P
i realy hace to hand it to daniel [...] on this one! after the poor guy that had started out on this one had decided he could not take it anymore i was asked to try and fix this %#** as soon as i was driving it in i noticed that above 1000 rpm the tach stopped... Trouble codes: 41 (tps).
2002 Mazda Tribute LX 3.0L Surge VIN: 4F2YZ94103
sorry for the delay, this vehicle finally came back to my shop. i performed a transmission bg flush and the surge went away. it was a transmisson shudder that was being felt on the vehicke. thanks to all ofyou for all your help on this matter . see you all on ...
1976 Other European AMV8 5340CC Power assist. VIN: 0011553LCA
Thanks to Ken,Peter (2 Replies) & Mitchell. I found that I had inadvertantly trapped so air in the system and bled the systm using an external vac. source, this got the pedal high enough but I was still losing vac. at both of the servo atmospheric check valves...
1994 Toyota Tercel DLX 1.5L Compression VIN: JT2EL43EXR
Hi All: Your replies centred on valves, timing belt and worn out engine. After reading your replies I sat down and got over my brain cramp. Today I pulled timing covers and confirmed timing and belt condition and adjustment. All perfect. I then backed out valv...
1995 Toyota Corolla 1.6L engine VIN: 1NXAE09806
Most helpful tips of things I will not be able to test due to customer declining further work included: 1. CKP sensor--water pump leaking onto it can cause failure, or just it's going bad and has a weak/intermittent signal--located under t-belt cover. 2. Ignit...
1990 Volvo 240 2.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on
Thanks to all those who replied, without you this one would have gotten the best of me. Most replies said to either look at the mass air flow meter or the fuel pressure regulator. I replaced the mass air flow meter and vehicle started and ran but a little roun... Trouble codes: 232.
1997 Volvo 850 T-5 2.3L engine oil VIN: YV1LW5726V
the vehicle hasn't returned after replacement of the breather box on the pcv system. thank you all for all your help.
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