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Prev Professional Automotive Repair Technical Discussions for November 26, 2012
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Open Help Requests for All Makes and Models
Help Request Answers
1995 BMW 740i 4.0L No Start VIN: WBAGF6327S
Vehicle towed in . customer states battery went dead and after he recharged it the car wouldnt start. he replaced the battery. when i check for codes i have no communication with the dme.check fuses 22 24 in the ebox. no crank and no start. have done lots of r...
2001 BMW 325i 2.5L engine VIN: WBAAV33431
Hi BMW guys, This car came in with no start. Cranks but will not start. Everything checks out ok but the compression. Do we have a timing chain problem, Customer drove vehicle and parked at home. Tried to start next day and will not. I would like some insight...
2002 BMW 325Ci 2.5L brake lites VIN: WBABN334X2
Hay Guys, I have disconnected the brake lite switch without effect. lites still on. I am now down to pinpoint checks at the LIGHT SWITCHING CENTER CONTROL UNIT. My data does not give me the location of the L.S.C.C.U. Please help me locate this Control Unit.
2003 BMW 745Li 4.4L Ars VIN: WBAGN63483
2003 745il [...] wHEN driving, the sway bars will activate, mostly the rear end, and sink one side or the other of the rear end, mostly seems like left side. After a bit of the the Dynamic Drive Inactive warning will come on. Faults posted are 5D5B...
2006 BMW 325i 3.0L heater VIN: WBAVB13536
Car hit a animal and had to replace alot of front end parts radiator,bypass hoses,fan assmebly. Now for some reason it has more than enough heat 130f while sitting still but 75f out vents while driving..tried new stat and water pump same results.. Anyone run i...
2003 Buick LeSabre Limited 3.8L Drl VIN: 1G4HR54K63
drl comes on for 5-6 seconds then headlights come on. my scanner will not pull up bcm. both powers at drl relay, headlights high and low work corectly. twilight slider switch works ccorrectly. I think DIM is culprit but would like some input to be sure. if I b...
1999 Chevrolet K1500 LS 5.7L speedo non op VIN: 1GNFK16R3X
Speedo is non-op. can someone please tell me what the vehicle speed output voltage should look like when back-probing at the vcm with dmm. vss input to vcm is good.
2001 Chevrolet Tracker 2.0L Mechanical VIN: 2CNBJ13C61
truck came back in today for same coad p0340 cam sensor it will stall when it gets what i found is if i move the cam sensor or tutch it the truck will stall some times it will start wright back up and some times it will not i repined the canector that...
2003 Chevrolet Silverado 1500 4.3L Airbag VIN: 1GCEC14X63
Customer purchaced this used truck. It has codes B0017, B0018, and B0051. Codes will not clear. All airbags and sensors are connected. Passenger present sensors are working. We are at a loss on this one. Any help will be greatly appreciated. Thanks
2003 Chevrolet Silverado 2500 6.0L reduce power VIN: 1GCHK29U63
customer told me he would constantly get reduced power setting all the time. i checked every wire from the peddle to the throttle body. i found one broke, repaired it. now he wont get reduced power unless he is cruising. i drove with him we sere going 50 mph l... Trouble codes: P0220
2006 Chevrolet Suburban 1500 Z71 5.3L gauges VIN: 1GNEC16Z46
Customer brought in vehicle said gauge was going down while driving.scanned with no codes in memory.We tested the charging system and with all accessories on,a/c,high fan,high beams and after a few minutes charging slowly decreased from 14.2 to 12.6..The batte...
2006 Chrysler PT Cruiser 2.4L 2-3 shift VIN: 3A4FY48B06
Found vehicle to have codes P0733 and P1790 and in limp in mode when first came in. Cleared all codes, ran basic checks. Test drive vehicle and as soon as it shifts to 3rd trans slips and goes into limp in mode. Not sure where to go from technical data receive...
2006 Chrysler Pacifica 3.5L ABS/Brake & tach. erratic VIN: 2A8GM48486
Hello iATN fellows. I got this 06 Pacifica that I have no clue where to go from here. The problem/complaint: Brake and ABS light blinks at the same time the tach gauge fluctuates, all this after vehicle had been driven for at least 15-20 miles before it would ...
2004 Dodge Neon SXT 2.0L right side dim light VIN: 1B3ES56C64
right side dim light out put in new bulb,same thing jumpered lift side to right side lights all work til i start engine,checked fuses #17 blown replaced fuse and lights all work till i start engine right dim out again. the right side dim is on fuse 17 the left...
2008 Ford F-250 Super Duty XLT 6.4L Cyl head cracked? VIN: 1FTSW21R88
This truck was towed into our shop from the dealer,our customer bought it at a Ford Auction with parts removed and missing.We have worked on a ton of 6.0s but this is our first 6.4. We removed the cab and starting removing items and found a bad Turbo among oth...
2008 Ford Taurus SEL 3.5L running lean VIN: 1FAHP24W28
hi this car has both lean codes i have changed the ocv valve because i have found no other problems stfuel trims are very irattic swinging from 0 to 20 and lgterm fuel trims are at 25.8 percent on both banks i have reset the kam memory to reset long term fuel ... Trouble codes: P0171, P0174
1998 GMC Sonoma SL 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTCS14X4W
Good morning everyone, I have a 98 Sonoma 4.3x that I purchased for my son as a first vehicle. When i bought it the owner had been chasing a running problem and replaced many parts trying to replace it on his own and then the engine finally spun a rod bearing ... Trouble codes: P0300 (multiple random misfire)
1996 Honda Civic HX 1.6L Poor Idle Quality VIN: 1HGEJ7221T
1999 Honda Accord LX 2.3L Poor Idle Quality, MIL Lamp on VIN: 1HGCG6652X
Vehicle came in with a check engine light and surging idle all the time. Had code p0505 - (idle control system). Found intake manifold gasket leaking, replaced gasket and bled cooling system. This took care of the surging in idle while in drive, but now after ... Trouble codes: P0505
2003 Honda Accord EX 2.4L mode door VIN: 1HGCM56653
Vehicle only blows from the vent position. Cannot access on board diagnostics and modis is no help. Removed mode door acutator and doors can be moved easily. Mode door actuator un responsive dissconnected from doors. Have 5 volt reference and ground. Any help,...
2007 Honda Civic EX 1.8L Srs Light On VIN: 2HGFA16867
Hello I have this Honda . Originally it came in with multiple srs codes in permanent memory .Body shop replaced module as they had installed wrong one .This resolved all but one code . I have tried to clear the code . I am using a AUTEL scanner and the code is...
2005 Kia Spectra SX 2.0L Safety VIN: KNAFE16175
Kia techs please help this [...] with code b1382 for passenger air bag resistance hi. I noticed a bulletin for the optima model for the same code. Has anyone seen this problem with this model and year? i cant clear the code with my snap on solus pro scanner...
2007 Mazda 3 S 2.3L No Start, Stall VIN: JM1BK32367
This vehicle will continue cranking and not start. If you bump the starter a couple of times, it will start and run for about 2 sec. then quit like you shut the key off. the cam timing seems good and has 180 psi on all cyl. Has good spark and fuel pressure cra...
1996 Mercury Cougar XR-7 3.8L No Start VIN: 1MELM624XT
Ok Gents have this 1996 Mercury Cougar. Came in as a no start. Vehicle will start but intermittently would not. Found that I have no communication with the PCM when vehicle will not start. The check engine light is on when this occurs indicating that i have po...
2001 Mercury Grand Marquis LS 4.6L Heater core VIN: 2MEFM75W71
As you can see in repair history, I have done 2 too many cores on this vehicle. Had call yesterday that customer believes the core is leaking again. The car will be here Friday morning to recheck. Need some help with ideas as to any normal or unusual things to...
2002 Nissan Quest GLE 3.3L Poor Idle Quality VIN: 4N27N17T22
Hi all, been working on this one for a couple weeks off and on. Runs fine most of the time, but at idle after about 40 seconds, it starts to falter. Doesn't stall, but acts as if the key were turned off for a fraction of a second every 10 seconds or so. If I b... Trouble codes: 325 (knock sensor)
1999 Oldsmobile Aurora 4.0L MIL Lamp on VIN: 1G3GR62C0X
Hey guys i have installed 2 new hoses a new water pump, thermostat and flushed the trans.. This is a new customer to me and i do not know if she will be truthful.. After all repair's seemed great test drove and the idle will rise up to 1800 or better.. restart... Trouble codes: P0420, P0731
2004 Porsche Cayenne 3.2L fuel gauge VIN: WP1AB29P74
hey Porsche techs , we gut this 04 cayenne 4.5, customer states gas gauge not going below 1/4 , found code 0071 fuel level sensor 1 and 0438 fuel level sensor 2, found 35 L on sensor 1 all the time, replace level sensor and found same, ck. connector and no pro...
2002 Saturn LW300 3.0L Body control VIN: 1G8JW84R12
With headlights on bright - both physically and bcm info - the blue " high beam " light on dash is exactly backwards. We have dash illumination lights on bulb check, but no other time. Dealership swears bcm is good.
2002 Subaru Impreza WRX 2.0L Excessive Emissions VIN: JF1GD29612
Hello everyone so i have a friends car with a problem, the mill flashes constantly, and the car is running very rich. problem is no scanner will communicate with the car. the problem was out of the blue and communication failure was not an issue before the mil...
2000 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDR32T2Y
Hello everyone and thanks for the help on this one. I have this Celica that is making me scratch my head. THis one is in for a code P0440 which appears to be a large evap leak. The purge valve and the cannister closed valve are up near the air cleaner. I plugg...
2005 Toyota Prius 1.5L power steering VIN: JTDKB20U95
This car has no power steering assist. You can drive the car but the steering wheel is hard to turn, just like on an old car with broken power steering belt, but this car has all electric power steering. The red warning triangle is on and code C1554 was read...
2008 Toyota Sienna CE 3.5L Clock, Power Mirrors VIN: 5TDZK23C78
I am just seeing if someone has run into this before. This van came in with no working clock. The customer had it at the dealer for the same issue which they just put a fuse in. But it apparently quit working shortly after they left the dealer. I checked the f...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1991 Audi 100 2.3L No Start, Poor Idle Quality, Cuts out, Stall, Misfire VIN: WAUBC5444M
Thanks to all of your extremely sharp knowledge. I know many of you mentioned adjusting the CO level. In Idaho where I live we do not do exhaust emmissions testing...YET...I'm sure. However drilling out the plug in the airbox and making some minor adjustments ...
2007 Audi A4 Quattro 2.0L No Start VIN: WAUDF78E07
Thanks everyone, it was the purge valve. The thing would click pretty hard but when i vacuum tested it found it to be stuck open. Many thanks guys. Trouble codes: P0455 (Gross leak).
2012 Audi A7 Quattro 3.0L Instrument Cluster reset VIN: WAUFFAFL1C
Thanks and closing this request, Phillip from CA has the best answer to the condition, I will contact the customer to try his advise, customer on vaca in AZ for a month but I will update as soon as I get my fingers into the vehicle.
1999 Bentley Azure Mulliner 6.7L Air Bag light VIN: SCBZK14E4X
Hello we had some great replies on scanners,and options, we took the car to he dealer to have it dealt with this round, now the trunk has locked us out somehow, and its a whole new ballgame.
2005 BMW 325i 2.5L No Start VIN: WBAEV33415
Ok, so got a ton of great responses, thank you all. I did hook up the GT1 when not starting and looked at sensor data, everything looked ok temperature wise. I checked the pin 10 at DME and backprobed while having the problem, found that DME was grounding ok, ...
2003 Cadillac Escalade 5.3L lost of acceleration VIN: 1GYEC63T13
This is the only code i received, my exhaust system is good, throttle body wires are good. I would also like to mentioned that i am using a GM Tech 2 scan tool, and this is where i can see the parameters of the accelerator pedal active when the throttle body d... Trouble codes: P0608 (Vehicle speed output circuit).
1999 Chevrolet Venture 3.4L Driven Wheels VIN: 1GNDX03E2X
Thanks to all those who mentioned the issue with the broken wire. Found one about 8 inches up the harness on the left hand side. Repaired; customer is thrilled. Thanks again.
2006 Chevrolet Impala LS 3.5L alternator VIN: 2G1WB58K96
Gentlemen A load of very good info. A large number said the alternator and I should have gone there first. The customer told me when he dropped the car off the alternator rebuild shop had checked the alternator and felt the problem was elsewere in the system....
2009 Chevrolet Suburban 1500 LT 5.3L park assist VIN: 1GNFK26319
I did call the phone number listed and it says to input your dealer number. This is why I was looking for an alternative way to disable without a reprogram. Thanks to all who took time and replied. The owner will have to pay us or the dealer to reprogram.
2006 Chrysler 300 (Car) C 5.7L fuel smell VIN: 2C3KA63H96
Again many thanks to all who replied. I have never seen one like this and probably never will. The 4 plugs on the back two cylinders on the passenger side were loose. I'm not talking full turn loose. Each one turned maybe 1/16-1/8 of a turn. Tightened them u...
1999 Dodge Ram 1500 Truck 5.9L module VIN: 3B7HF13Z8X
Sorry for the late close, got busy with work and the holidays and forgot all about it. Gilberts reply about the abs cycling a self test after driving got me going to alldata and reviewing operations again. Alldata in one section talked about abs activating at...
2004 Dodge Durango SLT 5.7L extended crank VIN: 1D4HB48D84
I'm going to close this because my post is running out of time. The shop that has this vehicle has taken the motor out of the vehicle and will be tearing it down in the next few days. A compression test came back with 180 on 5 cylinders and 150 on three. We'r...
2007 Dodge Ram 3500 Truck Laramie 6.7L MIL Lamp on, long crank time VIN: 3D7KS28AX7
I used factory sensors switched sensors and still eratic waveform on old sensors was the same as new The voltage grounds and all wires are good I am 99% sure its the cam or gear cummins dealer said had one that pressed gear moved on cam Dont know if anyone has... Trouble codes: P0341.
2008 Dodge Sprinter 2500 3.0L low power VIN: WD0PE84548
thanks for reply's,as Dave suggested we replaced fuel filter(owner had recently replaced also).reinstalled exhaust with now getting code 2626 after test drive but running great.ran flow chart for code & comes up with particle filter/trap needing replacement.ow...
1998 Ford F-150 XL 4.2L Cooling Systems VIN: 1FTZX1720W
Thank you for all the replies. Intake gaksets fixed this one and customer is on the for over a week now.
2003 Ford F-150 Lariat 5.4L Rear Main Seal VIN: 1FTRX18L23
Well we didn't want to chance anything so we went with the factory rear main seal. There were two different aftermarket options from parts store and neither one seem to resemble the OE seal.
2005 Ford Escape XLT 3.0L Misfire, MIL Lamp on VIN: 1FMCU03135
OK guys, this one reeked of foul play to begin with... I ended up talking to the customer once more on the phone, where he became less helpful and a little more beligerant. For some reason he was getting bothered by all my questions, and he was frustrated tha... Trouble codes: P0354.
1999 GMC C3500 Sierra SL 6.5L No Start, Hesitation, Cuts out, Stall VIN: 1GDKC34F2X
Great help from everyone thank you! The truck was towed to another shop that would do the injector pump for less money than our shop. Most seemed to think the complete pump was the cure and many suggested the Id Module, which I would have done IF it were my o... Trouble codes: P0251, P1217.
1999 Infiniti Q45 4.1L Hesitation, Cuts out VIN: JNKBY31A5X
Thanks for the replies it the egr solinoid allowing just enough vaccum to allow the egr to open under accell and causing the stumble
2008 Kia Rondo LX 2.7L Headlights VIN: KNAFG52668
seems one of the bulbs was pulling too much i should have seen it had no numbers or writing on it.thanks to all
2006 Land Rover Range Rover Sport Supercharged 4.2L no heat drivers side VIN: SALSH23446
We replaced the heater core and this was the proper fix. Thanks, Stewart
2008 Mercedes-Benz GL550 5.5L Steering VIN: 4JGBF86E98
So after us speaking to the customer letting them know how perplexed we were and after that conversation it came up oh yeah it was doing that before that's why we wanted you to repair the leaks...replaced power steering pump and all is good! Thanks, STew...
1996 Oldsmobile Aurora 4.0L No Start VIN: 1G3GR62C9T
Had this vehicle on the back burner for awhile, finally got down to some circuit testing of anti-theft system for no start, the wierd thing is, I found testing under 97 Aurora in Alldata, but not for 96??? Anti-theft module tested bad (fairly simple test), i...
1991 Pontiac Grand Prix LE 3.1L fuel injector VIN: 1G2WH54T8M
2007 Pontiac G6 2.4L Misfire, MIL Lamp on VIN: 1G2ZG58B17
Fixed it with the crankshaft variation relearn. Thanks for all you that helped on this, I could have not done it with out you. Trouble codes: P0171 (Lean), P0300 (Misfire).
2000 Saab 9-3 2.0L No Start VIN: YS3DD35H3Y
now that's what i'm talking about! all who said crankshaft position sensor nailed it! revisited that data, and found when cranking 250,0,312,0,0,0,0,250,0. weird thing is, that's one of the first things i looked at. tired eyes i guess. thank you guys very much...
1994 Toyota Pickup DLX 2.4L hard start VIN: JT4RN13PXR
Thanks for all the great tips. I tested all the grounds, twice, and found all to be good. Scoped the coolant temp sensor and it had no drop outs. Swapped out the relay and the truck still had the problem. I pulled the cold start injector, plugged the hole and ...
1996 Toyota Land Cruiser 4.5L MIL Lamp on VIN: JT3HJ85J2T
found compression on cylinder 2 60 psi cold and 40 hot needs valve repklaced and adjusted.. Trouble codes: P0300.
2003 Toyota Corolla CE 1.8L tachometer VIN: JTDBR32E83
Thanks for all the replies. I found when transmission solenoid pack harness disconnected all symptoms went away. I removed engine harness and removed all shielding tested all wires again and no problem found. I did find that two of the harness connectors for ...
2006 Toyota Camry XLE 2.4L rear defroster VIN: 4T1BE30K16
I should have looked into this complaint myself since my tech did not inform me about the removable interior trim panels located in the support pillars. Once we removed the panels we found an open ground at the right roof pillar. Simple enough to fix and it al...
2007 Toyota Corolla S 1.8L No Start VIN: 1NXBR32E57
Thanks for all the replies This car is fixed we saw that we had very low cranking vacuum but good compression we removed the valve cover and checked timing marks they looked lined up but the paint marks did not line up . we removed the cam shafts and found th...
2007 Toyota Tundra SR5 5.7L No Start VIN: 5TFRV541X7
First of all thanks for all the tech's that attempted to help with this problem. I finally had to say uncle and refer to dealer. I thoughly checked all relays for operation, went thru the diagnostic chart from toyota several time making sure I didnt miss somet... Trouble codes: U0100.
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