× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 24, 2012
International Automotive Technicians' Network (iATN) - Members Only
(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
2004 BMW 525i 2.5L All VIN: WBANA53534
Hi all...I'm STUMPED!! Got this early 04 E60 M54 with blade Key. Can't get the true skinny from client but have a bad suspicion. Supposedly the Headlights were left on than the car would no longer start. I'm suspecting a jump attempt with the Ign. on?? At thi...
1998 Chevrolet Tahoe LS 5.7L Unknown VIN: 1GNEK13R6W
I got this Tahoe with a cracked flywheel, It has a newer reman motor installed by another shop and they didnt tighten the bell housing enough and the flywheel cracked, I put in a new flywheel and fired it up, has a cyl #3 miss fire at idle only, has new plugs,...
2001 Chevrolet Tracker LT 2.5L Ammonia Smell VIN: 2CNBJ63461
Vehicle came in with complaint of ammonia smell on acceleration. Test drove and accelerating to highway speeds with the window up could not smell anything. With the passenger window open, when I accelerate to highway speeds the smell of ammonia was present alo...
2001 Chevrolet Suburban 2500 8.1L Ride control VIN: 3GNGK26G31
Cust was driving over large holes when camping and the service ride control light came on. scanned the ecm and had 2 codes. c0580 and c0620. Thanks ahead for any help.
2004 Chevrolet Avalanche 1500 Z66 5.3L Steering VIN: 3GNEK12T74
2004 Chevy Avalanche has a vibration/groaning noise in the steering once the vehicle has warmed up. The p/s hoses to the O.E. p/s cooler start to vibrate when the noise occurs. It happens most when you turn the wheel 1/2 a turn to lock. It sends the noise up t...
2004 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52FX4
Another GM nightmare for me! This Cavalier is going to auction, and the dealer told us it needed a new fuel pump because of a no-start and no-fuel issue. We got it and it started up sometimes, and other times not. We found the fuel pump relay working sporadi...
2004 Chevrolet Impala 3.4L no speedometer
No speedometer on this car. I have odometer. Scanned on road test and mph shows right on scanner at all speeds. I know GM has alot of problems with clusters. Customer doesn't have much money. Our gm dealer said they have to do this job if a used cluster is put...
2000 Chrysler Cirrus LXi 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1C3EJ56H5Y
Hello, any help or suggestions would be appreciated, I hook up the scan tool and some data is out of parameters: coolant temp sensor is negative (-) 157, air temp is -157, map pressure is 0, battery temp -157, throttle position acts normally, engine rpm while ... Trouble codes: B0CM, B0CM, B0CM, B0CM
1998 Dodge Grand Caravan ES 3.8L No Start VIN: 1B4GP54L3W
The problem I have is that the starter will not start the engine, turn the key and nothing happens, no clicks or anything. I have power going into the ignition switch and power coming out of the igntion switch when key is turned to start. I can engage the star...
1999 Dodge Ram 1500 Laramie 5.2L MIL Lamp on VIN: 3B7HC13Y0X
Started as a hard code P0505, it would happen every time she started it after it was cleared by me and a few other shops before me. I thought it would be pretty cut and dry being a hard code, so I talked her out of going to the dealer. I was thinking wiring or... Trouble codes: P0505 (IAC motor circuits shorted)
2001 Dodge Ram 1500 Van 5.2L Stall VIN: 1B7HC13Y41
This truck had a tendency to try to stall when on a decel- like coming to a stop, even when coasting going down the road down a hill. You can see the tach kind of surging like it is dropping rpm, then the computer is trying to help. The strange thing is that w...
2007 Dodge Ram 1500 ST 5.7L Steering wheel shakes at speed VIN: 1D7HA18217
Vehicle shakes from 45 to 65 mph only. Above and below those speeds it is OK. You can feel it in your seat, in your feet(floorboard shakes) and in your hands(steering wheel oscillates while driving in this speed range). It is a shake or rattle type of vibratio...
2002 Ford Escort ZX2 2.0L Poor Idle Quality, Check Engine Light VIN: 3FAFP11302
Vehicle came in with a rough idle and check engine light on. We cleaned the throttle body and that helped it Idle better. We could not find any other problem. Fuel pressure is 40 psi short term fuel trim is + or - 3% long term is 2%. I see the freeze frame sho... Trouble codes: P1131 (O2 Sensor Bank One Sensor One Indicates Lean)
2006 Ford Explorer XLT 4.0L drivability VIN: 1FMEU63E06
the vehicle came in with timing component noise in the front chain. i pulled the front cover and oil pan to replace the front jackshaft tensioner and balance shaft tensioner. both had come apart and were in the pan. set the timing with the camshaft timing kit....
2000 GMC Sierra 1500 SL 5.3L high steering effort VIN: 2GTEK19T5Y
problem occures when backing out of a parking space while turning the steering to the right it feels like all power steering assist goes away. I have inspected all ball joints and tie rods for binding all seem good. the pump was replaced a month back for the s...
2005 GMC Safari 4.3L Misfire, MIL Lamp on VIN: 1GKDM19X65
I have an 05 Astro. Just installed a new jasper 4.3 and an install kit. Engine ran fine just the thrust bearings were bad. I now show misfires on #1 and #4 cylinders but only @ 2000-3000 rpm free reving or light or heavy load. The vehicle does not feel or appe... Trouble codes: P0300
2005 Honda Odyssey EX 3.5L Unknown VIN: 5FNRL38765
This vehicle has vcm management on it.The complaint is when the system switches from 6 to 3 cylinders,there is a vibration felt. I have read that motor mounts can cause this.I have preformed both the engine off and engine running test on the electronic mounts ...
2006 Honda Accord LX 2.4L Head gasket VIN: 1HGCM56456
I have previewed the R&R procedure in [...]. I just would like to know if there is anything special I should worry about before I take the head off the motor. Have not had the luxury of doing one of these until now. Thanks to all, Stan.
2011 Honda Accord LX 2.4L No Start VIN: 1HGCP2F39B
Hello Fellow Techs, I have here a 2011 Honda Accord LX with a 2.4 Liter Engine, that is a Crank-No-Start scenario. Vehicle was brought to me by a body shop, and I was informed that this was a "lightning stike" vehicle. While I dont see any indication of this...
2003 Hyundai Santa Fe GLS 3.5L egr VIN: KM8SC73E93
Vehicle had lean mixture and lo egr flo codes. Replaced maf, and found egr hoses misrouted. Repaired hoses, and now egr opens at idle. I replaced egr solenoid, all vac hoses and the "T", blew out metal vac hoses, and egr still opens at idle. From what I unders...
2002 Jeep Grand Cherokee Limited 4.7L power steering VIN: 1J8GW58N92
Hey everyone, thank you for taking the time to look at this. This Jeep is really kicking my butt. It came in with a complaint of no assist when turning left only. Test drove and verified this is in fact what it was doing. I ended up replacing the steering box,...
2005 Jeep Liberty Limited 3.7L Comp, Cond. VIN: 1J4GK58KX5
On recommendation, I replaced the A/C compressor, condenser, accumulator and liquid line with orifice tube inside. May have added to much oil but I HAVE drained that back out. The condition is I can NOT even get 6oz of freon into the system with the high side ...
2005 Jeep Liberty Sport 2.8L cylinder head VIN: 1J4GL485X5
Removed cylinder head after diagnosing miss on [...].Found intake rockers off intake valves on #3.It seems when this engine throws rockers off it does it in sets per cylinder,and not by random lifter failure.This is the first of these I have seen and would...
2007 Lincoln MKZ 3.5L No throttle VIN: 3LNHM28T47
Greetings to all. Received this vehicle from local town mechanic. It is his own vehicle. The car does not have any throttle response. He has installed a rebuilt ecm and a new throttle assembly. Also had it reprogramed with same results. No throttle. I am not s... Trouble codes: P0600, P2104 (Throttle actuator contro system forced air)
2002 Mazda 626 ES 2.5L Poor Idle Quality, MIL Lamp on VIN: 1YVGF22D92
when cold engine barely misses i mean barely,u have to feel for it but when warms up dead hole #2,did complete tune with coil pack n same results.noticed mil lite constant blinking
2001 Mercedes-Benz ML320 3.2L Drive belt VIN: 4JGAB54E81
After having installed a new tensioner and belt to get rid of the belt squeel, it has now thrown the belt off and was towed in. Belt did not shred, and there is no oil on the belt. I installed a new belt, and all seems well. There is a minor wobble from the ne...
2000 Mercury Villager Estate 3.3L lock horn VIN: 4M2XV14T2Y
Driving along horn chrips and locks lock.Like with remote to lock up when normal.Removed remote from area.I did it to me once.Just sitting in drive horn cherped and doors locked.I have not tested anything..Anyone have this happen. Smart Entry Control (SEC).Is ...
2007 Mini Cooper S 1.6L MIL Lamp on VIN: WMWMF73557
Vehicle originally came in with a multitude of codes: 2d52(superknocking) 2dcb (fuel cutoff due to superknocking) 2fdc (interface ews dme) 2b64 (unmeterd air)2b51 (air mass signal) 2b5f (air mass sensor correction signal). Valve cover/pcv was updated to newer ... Trouble codes: P1497
2007 Mini Cooper S 1.6L crankcase ventilation VIN: WMWMF73567
Hi we have a 1.6L turbo engine with excessive oil consumption at 37k miles. Suspect excessive blow by from the crankcase ventilation system. Has anyone experienced an issue with the oil control rings or the crankcase ventilation system itself on this engine ca...
1978 Nissan 280Z 2.8L No Start, Cuts out VIN: HLS3043629
vehicle always takes a bit of cranking to start.but it starts and idles good.testing on a dyno under load.intermitently on acceleration it would cut out and back fire up the intake.at the time it would cut out i would spray a mist of carb cleaner and it would ...
2003 Nissan Pathfinder SE 3.5L MIL Lamp on VIN: JN8DRD9X73
Vehicle came in with p0174 and a hesitation. Checked mass air flow gps at idle 2.2. Checked engine efficiency at full throttle, below 50%. Replaced mass air flow sensor. Gps went to 4.5 turned out mil. No note in oe maf sensor to calibrate. Light came on next ... Trouble codes: P0174
2004 Saab 9-3 Arc 2.0L Air Bags VIN: YS3FD75Y54
This saab came in with (air bag malfunction see dealer)message on dash. Found code [ff,5,80,83]but mitchell has no information about this format.this looks like hard failure as code comes back after clearing. Any help on definition and testing would be very he...
2001 Saturn L300 3.0L No Start VIN: 1G8JW54R31
Initially the car came in 2 weeks ago for a no start. We diagnosed the problem, replaced the fuel pump with a Delphi unit. Engine started. Customer paid bill and left. Less than 48 hours later, she called, engine does not start. We towed it back and upon diagn...
2006 Suzuki Grand Vitara Luxury 2.7L Poor Idle Quality, Stall VIN: JS3TE94146
Greetings, Hope we can get some help on this one. Customer brought vehicle in and said it stalls when coming to a stop WITH A/C ON, doesn't do it with a/c off. Other than that drives and runs normally and a/c works fine. He said it started right after replacin...
1997 Toyota 4Runner Limited 3.4L Converter Lockup VIN: JT3HN87R5V
Hello IATN! Today im looking for a little bit of help with my personal vehicle, I bought this truck cheaply with 180K, It had been neglected of maint. but was in otherwise great condition and I really love the thing! Once things slowed down in the shop I repl...
2009 Volkswagen Passat Komfort 2.0L No Start VIN: WVWXK73C89
car came in for a noise ,,, sounded like ider pulley went bad,,, had technician pull front cover & turbo,,,removed drive belts to make sure noise wasn"t ALT or WATER PUMP

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1990 Acura Integra LS 1.8L Fuse #24 VIN: JH4DA9356L
Thanks to all you guys for posting replies, Mike from Onterio, and a couple of others said alternator. Disconnected alternator and fuse doesn't blow. Trouble was, car would only run for a few seconds and I could watch amperage go from 5-6 amps to spike and c...
2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E07
Some replies said to ck. the gas cap. Others said purge valve or canister. Being we had smoke tested the system and found no leaks at the canister and had already replaced the purge valve I replaced the fuel cap. It had passed the smoke test but I have no way ... Trouble codes: P0455 (Evap large leak detected).
1997 BMW Z3 Roadster 1.9L MIL Lamp on VIN: 4USCH7320V
Well this one was unanimous! Everyone said go ahead and just replace the cam sensor - very common problem. Also - make sure it's an OEM sensor. A few responses mentioned changing 'both' cam sensors at the same time but this vehicle only had one - on the front ... Trouble codes: P0340 (Camshaft Position Sensor).
2008 BMW 650i 4.8L passenger window VIN: WBAEA53578
Thanks for everyone's help on this one. We tried the resets and checked the windows and tracts with no help. Bit the bullet and sent it to BMW, they had to relearn the system with their scan tool. Again, Thanks for everyone's help!!
1992 Buick Century Special 3.3L engine VIN: 1G4AG54N5N
Wow what a fantastic response! Thanks to all who replied. Special thanks to Joseph [...]'Antuono who clued me in that a crank sensor failure would cause loss of injector signal as well as spark. It turned out that even though I had done a pin to pin ohms test on t...
1972 Chevrolet C30 Pickup 6.6L brake booster VIN: CCE532V107
Thanks for all the help. First of all the truck was a c50 not a c30 like I said. I found a place in Portland OR that has rebuilt boosters for a reasonable price. Thanks for the leads.
1998 Chevrolet Corvette 5.7L Power windows, power door unlock VIN: 1G1YY32G0W
Power supplies were load tested (headlamp) and both power and ground circuits passed (10 amp and 25 amps circuits) Data line tested back to DLC Pin 2, drivers side showed some resistance, passenger side tested good. Also found that using the convertible top ...
2002 Chevrolet Venture LS 3.4L No Start VIN: 1GNDX03E82
This one is fixed and out the door. Got alot of good replies mostly saying that getting the PCM back on board was the first step. I had noticed the check engine light did not come on when the key was on and this turned out to be the main issue. The first thing... Trouble codes: U1000, U1096, U1040, U1305.
2008 Chevrolet Express 2500 4.8L Parking Brake VIN: 1GCGG25CX8
Thanks to all who responded to this issue. After removing and spending some time trying different things with the pedal assembly, I got it to release by pushing up on the spring that puts pressure on the adjuster drum, therefore creating more pressure on it an...
1998 Dodge Ram 2500 5.9L Mechanical VIN: 3B7KC266XW
I have repaired the vehicle. Special thanks to the people that was also helping me through e-mail (you know who you are). I replaced the hydro-boost unit. It did seem to help but I felt there was still too much drag on the front brakes. I removed the boost pu...
2001 Dodge Ram 1500 Laramie 5.9L Unknown VIN: 1B7HF13Z21
Replaced the governor pressure solenoid & sensor and no problems so far. Also, flushed the tranny and changed the filter for maintenance, even though it was done at 90,000. New clean fluid doesn't hurt! Thank you for the advice guys!
2001 Dodge Durango 4.7L Cuts out, Stall, MIL Lamp on VIN: 1B4HR28N71
After checking everything under the sun, I put in a known good pcm just to check it. Right off the bat you could tell it was running better, not running rich and did not stall. I sent the customer to the dealer for the warranty replacement on the pcm. I hav... Trouble codes: P0108.
2003 Dodge Durango Sport 5.9L pcm VIN: 1D4HR38ZX3
Hi Guys. sorry for the long wait. The Durango is fix and on the road! After much testing i could not find a short in the system so it came in to installing a new coil and computer. The old coil tested good but most of the replies you guys gave reported problem...
2004 Ford E-250 4.6L IP cluster VIN: 1FTNE24W44
We found a bare wire at the fuel pump sender that was causing a draw on the cluster ground. Replaced pump, module and cluster.
2005 Ford Escape XLT 3.0L Random no-crank condition, theft light flashes VIN: 1FMYU03135
Thank you all very much for the suggestions. No doubt it caused us to look in places we hadn't considered. We ended up replacing the PAT sensor "ring" that is positioned at the ignition switch. About $80 for the part and a simple 45-minute fix. We replaced...
2008 Ford F-350 Super Duty XL 6.4L Poor Idle Quality, MIL Lamp on, no throttle responce VIN: 1FDWW35R18
dealership found a rubbed wire blue w/light blue tracer, left front under inner fender, had rubbed on brake line Thanks to all for help and suggestions Trouble codes: 2138 (Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation), 2122 (Throttle/Pedal Position Sensor/Switch D Circuit Low).
2008 Ford E-150 4.6L Calipers VIN: 1FTNE14W98
Thanks to everyone who responded. James from California and Ennis from California were on the money. Duplicated the problem again and loosened the master from the booster, and brakes were free. My best guess is that the rod was hanging up somehow, since removi...
2005 GMC Savana 3500 SLE 4.8L brake system VIN: 1GDGG31VX5
Dan, Willard and Scott, you were right. the lt rear caliper [...]. Robert, you were right. one rear caliper pin on each side, the lowers to be specific, were siezed. actually couldn't get ...
2005 GMC Sierra 3500 SLT 6.6L injection VIN: 1GTHK332X5
Thanks to all that replied.I did install the TSB kit for the #2 and #7 injector connector and the updated braces for the wiring harness.also found the last monkey had broken a retainer on the #3 injector connector,so i replaced it before eversincya, came back....
1999 Mercury Sable LS 3.0L Crank Sensor VIN: 1MEFM53S1X
r&r crank shaft pigtail w/new n no more problem,all uall members got me the right info n the shield was shortin the crank sensor n the new tail was perfect.thanks to all
1990 Pontiac Grand Prix LE 3.1L Stall VIN: 1G2WJ54T5L
I appeciate all the replies, Since we already knew that I had bad resistance on two injectors especially the 6.8 reading. We told the customer thatwe were going to pull the plenum and replace all the injectors that were out of spec. He decided not to fix this ...
2005 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 2G2WS52205
well to those of you who mentioned signal wire, you were half right... found a crack in the cross over pipe between the manifolds. the exaust leak was setting the p0134 code. replaced the pipe and the code went away. I then discovered the low signal wire to th... Trouble codes: P0134.
2004 Subaru Forester XT 2.5L trans. hard shift VIN: JF1SG696X4
I was unable to find any separate solenoids for phase2 [...] 4eat .I did find used valve body at Slauson.I needed Low Duty solenoid Thanks for all the help. Kenneth.
2007 Toyota RAV4 2.4L Torque Converter VIN: JTMBD33V87
Customer was warned of potential damage to torque convertor, did not want to spend any further time on the issue. Trading it in.
2003 Volkswagen Jetta GL 2.0L speedometer VIN: 3VWRK69M73
2004 Volkswagen Jetta GL 2.0L No Start VIN: 3VWRA69M94
The fix for this was no power to the bottom center fuse in the fuse box. The customer did not want to spend money finding out why so I ran power to it and everything else powered up and it ran. Thanks for all the help.
2001 Volvo V70 T5 2.3L Stall VIN: YV1SW53D51
Recommended to customer replacement of ETM due to age of unit and engine tune with cleaning of ECM pins,customer declined repairs and traded in vehicle.This repairs were justified with condition of vehicle. Trouble codes: CEM3A, ECM64.
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next