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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 28, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
2000 Aston Martin DB7 Vantage 6.0L Misfire VIN: SCFAB4235Y
having little to no info the car misfires cold and under load after a week of driving the computer finnly set a code for cylinder 3 before removing the intake to get to the coils and plugs i would like to know what side is cylinder 3 on drivers or passangers s...
2003 Audi A4 1.8L radiator and heater core VIN: WAULC68E03
hello audi tech's, we need some help with this one,we are performing a 90,000 mile service, customer intered the shop and explained that last fall she lost her heater to just luke warm heat all winter, since we have had a very mild winter she wasnt concerned a...
2004 Audi A4 Quattro 3.0L low beams VIN: WAULT68E54
left front headlight was blown , replaced left low beam bulb and now have no low beam light operation. fuse is good , high beams work
2005 Audi A4 Quattro 3.2L Poor Idle Quality, MIL Lamp on VIN: WAUDG68E15
2005 audi A4 came in with check engine light on with a stored p0391 code for bank 2 exhaust cam signal performance/range problem.I replaced the cam shaft actuator for the exhuast due to debris jammed in it.Test drove and no codes returned and ran great.How eve... Trouble codes: P0391
1996 BMW 328i 2.8L abs VIN: WBACD4321T
Hello all,i have a 96 328 with both abs and traction control light on.I've done several modules/pumps on 5and 7 series vehicles but not on any of the 3 series.I cant communicate with the abs.dsc module at all.All the fuses are good etc.Has any one had this pro...
2000 BMW Z3 Roadster 2.5L circuits VIN: 4USCH9345Y
Attention BMW(Bring Momma's Wallet) gurus. Airbag lamp on with codes 02,14,15. Searched Mitchell- no diagnostics- limited wiring diagrams.. Please point us in the right direction- is there any diagnostic flow charts or system overview out there or any specific...
1989 Cadillac Allante 4.5L Excessive Emissions VIN: 1G6VR3182K
Vehicle came in for state emission test failure on HC and NOX. I found multiple misfires due to shorted injectors. Replaced two injectors that were ohming out at less than 3 ohms. After repair, vehicle ran good and passed pretest. Vehicle returned a week later...
2000 Chevrolet Impala 3.4L Battery drain
Customer complains of dead battery after 3-4 days. Have checked for draw with all modules sleeping, can see all modules go down and draw go to 24 milli amps. Customer said the other day he got in and the car would not start but had dash lights, he unlocked the...
2004 Chevrolet Impala 3.4L 1-2,2-3,3-4 Shift Sol. VIN: 2G1WF52EX4
Hi iatn members, i have a 2004 chevy impala with a dtc, p1811, and hard shifting. We over hauled this tranny for the same concern, tested all solenoids, replaced torque converter, even though, tranny was in good shape internally, no worn out parts found, no si...
2006 Chevrolet Express 1500 4.3L Airbag light on VIN: 1GCFG15X46
first of all I need to check all the wires are good to the PPS module but I dont even know where the pps module is. does anyone know where the PPS (passenger presence system) module is. Anyone know how to tackle this problem??
2007 Chrysler Sebring Touring 2.4L Stall VIN: 1C3LC56K97
customer states this vehicle quits at stops and while driving after checking for vacuum leaks it seems like pcm grounds or a bad throtle body has any one seen this jeremy thanks
1998 Dodge Ram 3500 5.9L 3-4 Shift VIN: 1B7MC33DXW
Customer just bought this truck. All was good for one day. Now we have no 3-4 shift or lockup. Replaced TPS like many before. Not the problem this time. 1-2 and 2-3 shifts are being comanded. no others. TPS signal is the same as VREF at all times. We are not a...
2003 Dodge Ram 1500 SLT 4.7L Cuts out, Stall VIN: 1D7HU18N13
I have this Dodge that is driving me up the wall then back down. Customer came in after a rather unpleasant experience at the local Chrysler dealer. His complaint is that it will stall and sometimes buck under hard acceleration when getting to highway speeds o... Trouble codes: F791F, F791F, F707A
2004 Ford F-250 Super Duty King Ranch 6.0L MIL Lamp on VIN: 1FTNW20P54
OK ford techs! Vechicle came in with check engine light on with code P0299 turbo charger underboost. Did a turbo boost test on the solus scan tool to control the duty cycle when the engine rpm at 1200 with no change. Scan data on a road test shows at criuse sp... Trouble codes: P0299 (Turbo Charger Underboost)
2006 Ford Taurus SEL 3.0L Stall VIN: 1FAFP56U16
This car will quit running very intermittantly. I havent had it happen to me but 2 other techs have and they say that when it dies there are no lights on in the cluster and it won't crank for a few minutes. I've looked at connections at the battery, fuse block...
2008 Ford Escape XLT 3.0L Hesitation, Cuts out, MIL Lamp on VIN: 1FMCU93158
This thing came in for check engine light. Codes p0171 and p0174. Cleared light and after a few miles of driving the CEL came back on with same codes. Customer thought they heard a vacuum leak. Used stethoscope and was unable to find a leak. Checked fuel press...
1989 Honda Civic 1.5L Cuts out VIN: JHMEE2853K
Engine Stumbles when accelerating hard, intermittently. narrowing down to tps or map sensor, I have heard of replacement TPS sensors but where available, besides whole throttle body replacement.
2001 Honda Accord EX 3.0L engine VIN: 1HGCG22521
Leak rolling down front of oil pump housing - appears to originate somewhere behind it. We replaced oil pump seal between pump & block + oil filter housing to pump seal, dipstick o-ring with timing belt, water pump, crank & cam seals. per Honda TSB on seepa...
2000 Jeep Cherokee Sport 4.0L Surge, Cuts out, MIL Lamp on VIN: 1J4FF48S2Y
This has 4 O2 sensors, my scanner only shows 2 O2 pids. All pids look good until it acts up with really bad surge/cuts out. O2's go to .02V, Long and Short term fuel trims go to 0 and pulsewidth jump from 0 to 18msec. I did not check fuel pressure, I'm thinkin... Trouble codes: P0303 (cyl 3 missfire), P0305 (cyl 5 missfire)
2006 Land Rover Range Rover HSE 4.4L Transmission VIN: SALMF15496
Car for a year now from what the customer said had popped a message on the screen for transmission fault. I had scanned it once and found a code for shift solenoid E. The transmission always had driven smooth and shifted thru every gear. I heard the same "I'm ...
1999 Lexus GS300 3.0L Cuts out, MIL Lamp on VIN: JT8BD68S4X
The Engine goes into 'limp home mode' during 1-2 and 2-3 transmission shifts. The transmission works fine in the 'manual select' mode, but once it is put in 'D' the transmission will neutral and the engine goes to Idle Speed RPM. Then there is no response from... Trouble codes: P1120 (VPA and VPA2)
2000 Lincoln Town Car Signature 4.6L Traction Control VIN: 1LNHM82W7Y
Hey guys here 1 for u i have a 2000 town car that when cold the traction light comes on while driving and the car will stall and wont restart un til u stop the car and put it in park and cycle the key then the car will star and run fine light gos out and stays...
2003 Lincoln LS 3.0L park to reverse VIN: 1LNHM86S13
We rebuilt the transmission with Torque Converter.. solenoid block also replaced..Mlp switch also replaced... From Park to Reverse it has Max line pressure and slams into gear.. No other time does it do this... Reverse to drive ok. drive to reverse ok... Only ...
2003 Mazda 6 S 3.0L MIL Lamp on VIN: 1YVFP80D43
Please help this thing is killing me!! Has a p0301 for cylinder 1 missfire. I have replaced the coil and plug with dealer parts and the injector as well. I cant get it to come back on with me. The cust usually has to drive it for a week before the light will c... Trouble codes: P0301
2004 Mazda 6 S 3.0L Misfire, MIL Lamp on VIN: 1YVFP80D84
This vehicle runs great, never acts like it ever misfires, but when driven and reaching approx 3750-4000rpm, the check eng light then flashes. If you speed up or down, then the light just stays on steady, but this is always able to duplicate on every road test... Trouble codes: P0301
1992 Mercedes-Benz 500SL 5.0L Misfire VIN: WDBFA66E9N
Hello iatn members, i have 92 500sl that has a misfire problem on cylinder 6 i have fixed major vacuum leaks on fuel injector seals & intake manifold round seals that go below the manifold.replaced plugs,wires,cap & rotor. Still misfires on cylinder 6. I also ...
1996 Mercedes-Benz C280 2.8L No Start VIN: WDBHA28EXT
Customer has owned this car about a month & has been perfect. He made a stop the other day & the car would not restart.There is no injector pulse, has 12 volts on + side & no ground on the other, at times it gets a very brief pulse like 2 seconds, starts & die...
2004 Mercedes-Benz S430 4.3L pre-save inactive VIN: WDBNG70J04
Hello,I could use a heads up on this 2004 S430 that is coming in tomorrow for repair.The customer left his lights on and ran down the battery,then jump started it with another car and the trouble started. The car started OK but now the dash is reading "pre-sa...
2006 Mercedes-Benz ML500 5.0L right rear window VIN: 4JGBB75E16
customer states window rolling down by itself. then smoke from door panel. remove door panel, verify window motor burnt and melted. replaced window motor. as soon as connector is plugged in the window immediatly goes down and continues to until motor gets hot....
2007 Mini Cooper S 1.6L MIL Lamp on VIN: WMWMF73527
Hello,I am not sure where to go from here on this mini-cooper s.It has a hesitation on acceloration accompinied by a cel.the code is 02885 charge air pressure deviation.alldata has absolutely nothing on this code. I do have scanner readings at idle multiplic... Trouble codes: 02885 (charge air pressure control deviation plausibility)
2000 Nissan Maxima GLE 3.0L No Start VIN: JN1CA31D8Y
Thanks in advance to all. This car drove in with a starting problem. Costumer states car is hard starting sometimes. Now while at our shop it`s a no start problem. Car has spark for about two seconds and then drops out. Can crank over fine, no problem there. C... Trouble codes: P0325
2001 Nissan Quest GLE 3.3L Misfire VIN: 4N2ZN17T51
Came in customer had the timing belt water pump replaced and had a code P0301. Found #1 wire bad. Replaced wires. P0300. Checked vacuum and it is 21 with no fluctuation. MAF is 4 g/s at idle, fuel trims are within +_3 no other codes. Pulled plugs and all are c... Trouble codes: P0300 (Random Multiple Misfire)
2002 Nissan Altima 2.5L No Shift VIN: 1N4AL11D12
Car won't move either forward or backward... in D, or in R...Replaced Transmission and Converter... It does the same..No Move...Customer says, car was fine.. She went to work.. Parked the car, then no Movement either in Drive or in Reverse... In the shop, you ...
2005 Pontiac G6 3.5L shift operation VIN: 1G2ZG52845
The only code is for a tcc lockup. We dont get into a lot of transmissions, so we are just looking for a little direction. The customer drove twenty feet to a stop sign out of her driveway. With no warning no noise it just neutraled out when she started to acc...
2009 Pontiac G6 2.4L Abs Tcs Ecm VIN: 1G2ZG57B69
Car sets following codes EBCM: c0561 "system Disabled" (I know,it's an FYI code) U 2105 lost com w pcm U 2107 Lost Com w BCM U 2106 Lost Com w TCM U 2143 Lost com w steer Angle sensor these are history codes the C0561 comes on as a "current" code until I ...
2005 Porsche Cayenne 3.2L MIL Lamp on VIN: WP1AB29P35
Tried identifix - no help on these codes tried iatn archieves - no help on these codes Trouble codes: P2187 (O2 sensor adaptation above limit bank 1), P2189 (O2 sensor adaptation above limit bank 2)
1994 Toyota Camry LE 2.2L No Start
Good evening ladies and gentlemen and thank you for taking the time to read my help request.The car came from another shop not running,it has fuel pressure,spark and pulse to the injectors.The check engine light comes on as it should.The problem is that the sp... Trouble codes: 14
2004 Toyota Sequoia SR5 4.7L abs VIN: 5TDBT44AX4
We have a 2004 toyota sequoia in our shop with the vsc off light on and the vsc trac light on. we pulled the codes with our scan tool and found code c1203. following the pinpoint test on alldata led us nowhere. we checked brake fluid resovoir level. all brakes...
2005 Toyota 4Runner Sport 4.7L Cylinder Head VIN: JTEBT14R95
So we chased a cylinder 1 misfire down to poor compression due to a burnt exhaust valve (4.7 v-8). Because of our shop location and local resources (35 mile wide island) we shipped in a used complete left side head. Upon completion the vehicle runs great, but ...
2000 Volkswagen Passat GLS 2.8L compressor VIN: WVWMD23B4Y
compressor will not come on, tried bypassing the pressure switch, according to manual jumper pins 1-2 compresor should come on (no power to it) jumper 3 and 4 fans should come on and they do. when you turn air conditioning on, the radiator fan does come on. th...
2002 Volkswagen EuroVan GLS 2.8L check engine light VIN: WV3AB47032
Hello Friends I got this 2002 Winnebago Vista, that came from one other shop, they replaced the head gasket because of an oil leak, the Van was in the other shop for a long time and many atempts to fix the oil leak, they replaced the head gasket and seal the ...
2003 Volkswagen Beetle GLS 2.0L No Start VIN: 3VWCK21C23
hay all vw masters out there have this happy little bug here starts and dies security light flashing now becides the p1570 there was a code in the instrument cluster for key low signal clear code recode icu diconnect battery cables for the night still didnt he... Trouble codes: P1570

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2005 Audi A4 1.8L knocking noise VIN: WAULC68E55
Everyone confirmed replace fuel filter, We did replace it with a German mande filter from World pac and knocking went away, rechecked cold this morning and noise no longer present, looks like restricted fuel filter was putting excess pressure on transfer pump ...
1997 BMW 528i 2.8L rear speed sensors VIN: WBADD6320V
thank you for the replies,but the customer is not inerested in investing any more money into this car and picked it up.the rear wheel speed sensors are NOT magnetic and do not have a tone ring.Instead there is a magnetic reference from the wheel bearing.The...
1989 Cadillac Seville 4.5L ignition lock cylinder VIN: 1G6KS515XK
thanks to everyone that replied , we did do the resistor idea but had no luck. After replacing the broken key cylinder we still could not get this car to start even though the resistance values matched. This car has had everything replaced on it it seems and t...
2000 Chevrolet S10 2.2L Mechanical VIN: 1GCCS1954Y
Everyone had some good points about the oiling of the cam and oil pump drive. Both cams show no signs of being oil deprived and the cam bearings look ok. There was a slight difference in appearance between first and second cam bearings. Oil hole looks clear bu...
2003 Chevrolet Trailblazer LTZ 4.2L Stall, Strains on acc. VIN: 1GNDS13SX3
I thought that I had closed this request. The convertor was the problem. Replaced convertor and car ran fine. Cleared codes and as of now no codes or problems have reoccured. Thanks for the help. Trouble codes: P0172.
2004 Chevrolet Aveo LS 1.6L no 4 shift VIN: KL1TJ62604
Thanks to all who responded,especially to Paul from Oklahoma and Bradley from Tennesse. After your advices,it was simple to resolve the problem I had.The spark plugs were the culprit,I replaced it and the codes were away.A small thing can be a big problem.ATN ...
2000 Chrysler Town & Country LXi 3.8L Removal VIN: 1C4GP54L5Y
I took the pinch bolt out of the intermediate shaft and that allowed me to lower the rack down to where I could punch out the roll pin. Although I did remove the dust/sound cover at the base where the shaft goes through the floor that would not have been neces...
2001 Dodge Caravan SE 3.3L MIL Lamp on VIN: 1B4GP25GX1
The shop ordered a replacement PCM and that fixed the problem. Van runs well, O2 sensors switching properly, no codes. Many thanks to all of your responses. Disconnecting the O2 sensors did not change the voltage reading or set a code. Enrichening the mixture ... Trouble codes: P0134 (O2 sensor B1S1 stays at center).
2003 Dodge Sprinter 2500 2.7L Right Front Brake Caliper VIN: WD2YD74253
Thanks everyone for all the help. We replaced the master cylinder and manualy bleed the system and everything works fine at this time. The million dollar question is what went wrong? My tech that was working on this pried the piston back a small amount just re...
2002 Ford Excursion Limited 7.3L oil pressure VIN: 1FMSU43FX2
thanks for the information. it is fixed. i only had 200 psi on high side while it would not start. i pulled injector pressure regulator to inspect o-rings & found no problem. when the engine was hot & would not start, i would take a water hose & run cold water...
2002 Ford Taurus LX 3.0L Poor Idle Quality, Hesitation, Misfire VIN: 1FAFP52U82
Thank you all for your suggestions, they are all really good. Turns out I really learned something very valuable from this car, when the STFT numbers are high it can very well mark a slowly responding oxygen sensor. I changed the one with high STFT numbers an...
2004 Ford Escape XLT 3.0L theft system (PATS) VIN: 1FMYU03184
Thanks for all of the good input. We tried having the keys erased, and when we tried to reprogram them, the vehicle would not recognize the keys, we could not perform the relearn. We tried a known good PCM, flashed to vehicle, same results. We ohm tested ...
2005 Ford E-350 Club Wagon Chateau 5.4L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FBNE31LX5
First off, Thanks for all the help/ideas. Uppon futher diagnosis, I noticed that the problem happened only when warm, Only in forward gears and under load. With the idea of the engine lifting under load, I inspected wiring harnesses and wiring attached to the ... Trouble codes: P0201 (P0201 Through P0208 Cylinder 1 Through 8 Injector Circuit), P0446 (EVAP Vent Control), P0460 (Fuel Level Sensor Circuit), P061B, P2105 (Throttle Actuator Control System - Forced Engine Shutdown), P2106 (Throttle Actuator Control System - Forced Limited Power).
1994 Honda Civic LX 1.5L No Start VIN: 1HGEG8667R
Got the used ECU plugged it in and she fired right up no hesitation at all. Even the mil goes out fast just about before I even turn the key to start. As many responses that affirmed my diagnosis it is odd I didn't find anything in the data base when I searche...
2001 Honda Accord EX 2.3L Misfire, Poor acceleration VIN: 1HGCG32581
Well, the answer was hiding away in the archives. We looked again at pule width and found over 4 ms at idle after warmed up. Pulled all of the injectors and removed the screens from them. Now it has a little over 2 ms at warm idle and runs wonderfully.
2003 Honda Pilot EX 3.5L Poor Idle Quality, Cuts out, Stall VIN: 2HKYF18583
After reviewing all replies and further diagnosis etc we have a strong hunch that the torque converter is starting to fail and intermittently it locks up at an dle in gear causing the engine to die. if we rev the engine up we were getting noise from the torque...
2006 Honda Civic EX 1.8L engine VIN: 2HGFG12826
thanks for all the help guys. it's nice to have someone else scratch their head with you. it has a tiny crack in the oil seperator area. off to the dealer under warranty.
2004 Hyundai Santa Fe GLS 2.7L No Start, long crank VIN: KM8SC73D24
replaced purge valve and have not seen it back thank to all Trouble codes: 441 (purge flow).
2001 Isuzu Rodeo LS 3.2L MIL Lamp on VIN: 4S2DM58WX1
First of all I would like to thank all who offered their input. Most mentioned intake gaskets, egr problems, intermittant coil issues, improper plugs, etc. Stephen and Tim also had good info on the system theory and diag as well. All replies were much apprecia... Trouble codes: P0300, P0301, P0303.
2001 Isuzu Rodeo LS 3.2L Prndl VIN: 4S2DM58W01
We didnít have a lot of support from the wiring diagrams in All data or Mitchell there were a lot more wires going to the switch than they showed. I went into iatn under a Honda Passport which is the twin vehicle to this one and somebody had the exact same pro...
1998 Jeep Wrangler Sahara 4.0L headlights VIN: 1J4FY49S3W
Thanks guys.Dan was right.It was pin 3 and 4 in the yellow connecter on the junction box on the left kick panel.May not have ever been pluged all the way on.It unplugged way too easy,the latch was not caught.checked connecter ,no problem .plugged it all the wa...
1999 Jeep Grand Cherokee Limited 4.7L battery VIN: 1J4GW68N8X
first of all, i want to thank all who helped. Replacing the alternator did help a little which jumped to 13.92 V. But after letting the vehicle sit for two days i found voltage dropped to 12.2V and so i looked for obvious if any lights are staying on and yes...
1994 Lexus SC300 3.0L Fuel Pump VIN: JT8JZ31C9R
The car still has the same problem, however, he hasn't brought it back as of yet. We suspect that the used fuel pump is killing it too. At this point, for the sake of convenience, we plan on simply jumping the fuel pump. Thanks to everyone who replied.
2001 Mercedes-Benz E320 3.2L compressor VIN: WDBJF65J11
I tested every circuit to the A/C module and found nothing wrong. I went through the programming setup again using the pushbuttons on the module. The compressor now engages and I have no fault codes in the A/C module. The code in the instrument cluster B112D f...
2002 Mercedes-Benz C230 Kompressor 2.3L Poor Idle Quality VIN: WDBRN47J92
Thanks for the replies, Delivered vehicle without repair. We suspect the fuel pump is dying. Car ran low on fuel while testing and began to stall at times. Refueled car and could not get to act up again. The one thing we should have done in retrospect was ... Trouble codes: P0171, P0171.
2006 Mercedes-Benz ML350 3.5L Hesitation VIN: 4JGBB86E66
After many miles of driving we had no more misfire faults. I am thinking the cause of the misfire is this, both times vehicle came in with misfires it was #1 and #4 both cylinders are at the end of the closed end fuel rail, and I think the young girl driver wa...
1995 Nissan Pathfinder LE 3.0L No Start VIN: JN8HD17Y2S
It turns out this was no exception to distributor failure. It was intermittently acting up, and never came up with an official testing procedure for the distributor, I went on a hunch, and the suggestions of many to "just replace the distributor" I guess the...
2003 Nissan Altima 2.5L No start VIN: 1N4AL11D83
Many thanks for the quick responses. Apparently the fuse box is plug and play, and now we can get on with finding why the car won't start. Thank you again for your help Paul
2005 Nissan Altima S 2.5L Parking Lights VIN: 1N4AL11D75
Found engine coolant in the power distribution computer. Replaced all is good now. Thanks
1985 Volkswagen Vanagon GL 1.9L No Start
I want to thank Cedric for his input, I followed his testing and didn't find any problem with reading, but put it back together and it started, I imagine it was a connection problem at one of the connectors I pulled apart. I did have one other problem it would...
2001 Volkswagen Jetta GLS 2.0L Air Flow VIN: 3VWSS29M01
I found that on this year jetta, after having talked to a number of volkswagon techs and checking online on different blogs for this issue, that the jettas come from the factory with less airflow from the outer vents compared to the inner. The air distributio...
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