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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 3, 2012
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for All Makes and Models
Help Request Answers
2001 BMW 740iL 4.4L No Start VIN: WBAGH83431
this car came in towed customer knows to much about his car and google he has repaird everything acording to him , his wife was driving and car quit will not restart, I checked car and car will crank start and quit with in 3 seconds everuthing is ther to start... Trouble codes: 230 (pedal travel sensor), 232 (pedal travel sensor 2), 117 (throttle ps signal), 118 (tps signal 1), 119 (tps signal 2), 115 (mas hot film)
2001 BMW 325i 2.5L MIL Lamp on VIN: WBAAW33431
only misfires on cold start up. will start to misfire then ecm shuts off injector and code sets. if you clear the code the car will smooth out and run perfect until the next cold start Trouble codes: P0305
2008 BMW 528i 3.0L Steering VIN: WBANU53568
Originally came in with fault code 5EBA Steering angle sensor plausibility. We reset code , go drive car and code comes back. We replaced steering angle sensor assembly (SZL).Try to code it and calibrate sensor. Keeps coming up that it cannot be calibrated due...
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...
2002 Cadillac Eldorado ETC 4.6L Lighting VIN: 1G6EC12972
The interior lights on this cadillac won't come on when either door is opened. I can watched the data stream and the BCM recognizes that the doors were opened, but the BCM is not commanding lights on. I can see the lighting command PID and it is not commanding...
2004 Cadillac Escalade ESV 6.0L stability VIN: 3GYFK66N44
Hello all need a little advice on this problem that i have ran into here. J ust did alot of work on this caddy all went well. I disconneted battery taped sterring colium so it would not move performed all work listed below. I got done connected battery and pul...
2002 Chevrolet Trailblazer LT 4.2L Abs VIN: 1GNET16S52
Hello this vehicle came in with the abs falsely activating at every stop, at slow speeds. Using the tech 2 data stream I verified that the right front wheel speed sensor would not start reading until about 30 mph and was causing the abs to activate. I retrieve...
2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on VIN: 1GNET16S83
Hello, thanks in advance for any ideas or experiences shared. BACKGROUND/HISTORY: This vehicle came into my shop after already having been to the 2 seperate dealerships. While in their care there were a few repairs performed: APP replaced, PCM replaced, and ... Trouble codes: P1271 (App 12 correlation error)
2005 Chevrolet Malibu 2.2L No Start, Cuts out VIN: 1G1ZS52F15
This Malibu has an intermittent stall, followed by a no crank situation. Last week it had a laundry list of codes, the only one that would re-occur is for the +/- shift buttons on the shifter. If you are interested, I can post them. According to the owner, a... Trouble codes: P0340, P0601
2006 Chevrolet Trailblazer LT 4.2L Misfire, MIL Lamp on VIN: 1GNDT13SX6
MIL light on, codes p0014 and p0455, reading all of the notes on iatn, most vehicles had driveability issues, this trailblazer runs good, gas mileage is good, only a few random misfires in cylinder 6. Not familiar with this issue. Has anyone else run into this... Trouble codes: P0014 (Camshaft position bank 1 timing over advanced), P0455 (Large leak)
1999 Chrysler Town & Country LX 3.8L Power to controller VIN: 1C4GP54L0X
Thanks in andvance to those who can help. I have this minivan that a p0760 keeps coming back on. The problem is actually that the output from the trans controller that turn "on" the EATX relay goes away. All power and grounds are good, (volt drop test) but the...
2002 Chrysler Sebring LX 2.7L No Start VIN: 1C3EL45R42
Car came in with bad water pump and bent valves... replaced engine with new factory long block. Car wont start. using Snap on brick, scan tool shows cam and crank synch going 'yes, no, yes, no'. confirmed cam ring to be correct. Scan tool does not give re-sync...
2006 Chrysler Pacifica Touring 3.5L Keyless Entr VIN: 2A4GM684X6
A month ago the car came in with the Keyless Entry (Key Fobs) inop and the TPM light was on. The WCM or SKREEM module (same on this car) was replaced and programed. It was fixed and worked great! Now car has returned with the Keyless Entry not working every no...
1995 Dodge Dakota 2.5L Speedometer VIN: 1B7FL26G3S
C/s the speedometer and odometer are inoperative. Vehicle has a no speed sensor signal code. Performed diagnostic procedures per mitchell and dealerconnect - all indicate the vss needs replaced - first installed two vss's from o-reilly's and then one from napa...
1993 Ford Ranger STX 3.0L No Start VIN: 1FTCR15U2P
Crank, but no start Will start if spray fluid into engine air intake. Thanks in advance.
2004 Ford F-350 Super Duty King Ranch 6.0L fuel VIN: 1FTSW31P14
Hello fellow techs, I have a dreaded Ford 6.0 L diesel problem. The vehicle in question originally came into our shop with poor compression readins on the end cylinders.We removed cylinder heads and sent to machine shop, and they advised us that heads were cra...
2005 Ford Mustang GT 4.6L cam sprag gear timing VIN: 1ZVFT82H95
Motor ran bad of and on till shut down found out of timming jumped and stripped out sprag gear and cam pin .Replaced cam ,sprag gear, new chain guides and new tensioners drove 500 miles now jumping time agian stoped driving, mechanic thinks the cam is locking ...
2005 Ford F-250 Super Duty Lariat 5.4L window VIN: 1FTSW20525
this truck came in about 6 month ago right front window not working. i got a motor & regulator from the ford dealer it didn't work,so i removed it put the old one back in worked good.checked all the wires all good. custorer said it has been working when it wan...
2006 Ford F-150 XLT 5.4L No Start VIN: 1FTPW14V16
the customer said he went into a station to have the emissions test done,and there was no communication at the aldl.not sure what happened after this but the vehicle would not start after attempting the test.we got the truck and found no signal to the starter,...
2006 Ford F-350 Super Duty XL 6.0L fuel system VIN: 1FDWX36P36
Hey gents. Help please, I got an 06' f-350 6.0 l. It runs fine till it warms up to obout 180 deg. And you turn off the engine, after this it wont start untill you let the truck sit for about 20 min. It will start againg. And repeat the same sicle. I know it wo...
2010 Ford Ranger Sport 4.0L Faulty communication between SRS and ABS VIN: 1FTKR4EE7A
Trac light on, code U0452-invalid data received from Restraint Control Module. Using IDS, performed troubleshooting as per Ford instructions. Tested can between both modules and have good wiring. Terminating resistor in RCM is good. Info stated to replace ABS ...
2004 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK29184
hey everyone i need help iam not much of a diesel mechanic. I have this duramax that wont start. Owner replaced his own fuel filter and after a couple hours driving he noticed lack of power and his fuel pressure was dropping down he could not remember to what ... Trouble codes: P1621 (Control Module Long Term Memory Performance)
2008 GMC Sierra 1500 WT 4.3L Misfire VIN: 1GTEC14X98
Truck came in the P0301 cyl 1 misfire. Removed #1 plug and it had carbon tracking about 1/4" wide and the length of the porcelin. Easy fix. Replaced plugs and wires with factory parts. Also had a coolant leak-water pump and head gaskets replaced. Still have th... Trouble codes: P0301 (cylinder 1 misfire)
2006 Honda Civic EX 1.8L Misfire VIN: 1HGFA15826
engine and converter replaced, car starts right up but when taking off it will begin to misfire, crank relearn has been performed, all honda techs please help with any info Trouble codes: P0301, P0302, P0303, P0304
2007 Honda Fit Sport 1.5L Hesitation, Misfire VIN: JHMGD37677
Thanks in advance for the help. Got a weird one here. Feels like a miss while accelerating, only with part to half throttle. Won't do it every time, runs fine at highway speed, never misses at idle or cruise, only sometimes on accel with medium throttle. Feels...
2003 Hyundai Tiburon GT 2.7L hazard flashers VIN: KMHHN65F03
Good evening Hyundai techs everywhere.I have this old Tiburon that was parked for over a year,when the customer installed a new battery to start it the hazard flashers started to flash and the dash lights are always on,the car will start,the power door locks d...
2005 Hyundai Santa Fe GLS 3.5L 4wd monule VIN: KM8SC73EX5
Vehicle came in with a "jerk" on acceleration when hot at just over 20 mph. Wanttest at the 4wd module but are unsuessful at finding it.Has anyone run across this before?? Thanks in advance for your help. Rob PS Has code [...] coupling clutch sh...
1988 Jaguar XJS C 5.3L Excessive Emissions, No Start, Poor Idle Quality, Cuts out, Misfire, Poor Fuel Economy VIN: SAJNA5846J
Car was towed in. Customer stated wouldn't run and could smell gas. We attempted to start the engine, it fired and ran on 6 cylinders (poorly), with a strong smell of gas. Shut car off and noticed fuel dripping from RH catalytic converter. Crankcase oil is ov...
2001 Jeep Grand Cherokee Limited 4.7L Frt Diff VIN: 1J4GW58N21
On decell 35 mph or above a clicking noise is heard from the frt differential.turning form side to side,turning the engine off,taking the frt driveline out makes no difference.speed of clicking noise is drive shaft speed or greater.being not very familiar with...
2006 Jeep Wrangler SE 2.4L Coolant Temp VIN: 1J4FA29176
This Wrangler came to us after being to the dealer twice and a private shop 3 times for this problem. Code P0128 Coolant Thermostat Rationallity. Between the other shops they changed 3 thermostats, Engine Coolant Temp Sensor twice and both the Intake Air Temp ...
2004 Land Rover Discovery HSE 4.6L Air ride VIN: SALTP19494
Customer previously had air ride removed and replaced with coil overs. Fuse has been pulled for compressor but the battery is still being drained by the actuator solenoids. I have foud through the wiring diagrams that if I remove ground C811 it should solve my...
2004 Mazda 3 S 2.3L immobi VIN: JM1BK14324
need to add a key to the wifes car and need the immobilizer release / access password thanks
1994 Mercedes-Benz S420 4.2L Poor Idle Quality, Stall, ASR light VIN: WDBGA43E7R
Vehicle came in with intermittent ASR light and no throttle condition. Scan codes and Removed throttle body and cleaned and replaced ASR module. ASR Light stays on and throttle in limp home mode and not activating. ASR Code 30 does not clear and EA/CC/ISC code... Trouble codes: 30 (ASR code CAN data bus to EA/CC/ISC control module), 29 (ASR code ABS lateral Sensor implausable), 2 (EA/CC/ISC code EA/CC/ISC control module N4/1)
2008 Mercedes-Benz CLK63 AMG 6.3L MIL Lamp on VIN: WDBTJ77H48
Hey All, I have a recurring intermittent code for The fuel pressure sensor reaching its upper limits. I have replaced the fuel pressure sensor, as well as both fuel pumps. anyone had any experience with this issue? Vehicle appears to run perfect. the only thi... Trouble codes: P0191 (Fuel Pressure Sensor Upper Limit Reached)
2002 Mini Cooper 1.6L Climate Panel VIN: WMWRC33422
this car has blinking climate panel, and no function when this occurs...customer also added that the door lock were not working at the same time, these are working at this time but panel is not...see a service bulletin for ground but not sure. Thanks
2002 Mini Cooper 1.6L Climate Control, Blinkers,dashlights VIN: WMWRC33442
Thanks in advance to everyone. I have this Mini that has multiple problems. First the Climate control unit is inop, no lights, no fan operation just dead, Second the cluster lights and tach lights will not light up. The blinkers and flashers work but do not fl...
2005 Mini Cooper S 1.6L No Start, Cuts out, Stall VIN: WMWRE33455
we need some help on this one, this is the first Mini we have seen and of course our scanner (autel maxidas ds708) does a fair job but has too many vehicle options (types). Came in on tow truck, cranks no start, we found fuse F02 20amp crank sensor 12 volt sup... Trouble codes: P1692 (Electronic throttle monitor), P0335 (Ckp sensor circuit malf), P1693 (Electronic throttle monitor), P0562 (Supply voltage low)
1989 Mitsubishi Montero LS 3.0L Dies occasionally VIN: JA4GJ51SXK
Hello Techs, We started with new fuel filter, (old filter was terrible). Vehicle has new igniton igniter, (small component near coil) We suspect distributor issue. On a road test, vehicle died for us, we towed it back into the shop and started, we were not ab... Trouble codes: 22 (Crank angle sensor), 23 (TDC sensor)
2002 Nissan Sentra CA 1.8L Hesitation, Cuts out, MIL Lamp on VIN: 3N1CB51DX2
What are we missing? We are getting different readings at the pcm when back probing the maf sensor wires than what we are seeing on the scan tool. Had pcm checked and was told it is good. Help if you can. Thank you. Trouble codes: P0102 (MAF signal low), P0731 (1st gear not functioning)
2000 Pontiac Montana 3.4L Misfire, all cylinders VIN: 1GMDX03E2Y
this engine has a missfire during second gear and only trough second gear. all cylinders show missfire on the scanner no other codes. notice that when egr is unpluged engine runs good as long as theres a code for the egr no missfire. i plugged a mew egr on the... Trouble codes: P0300
2008 Porsche 911 Targa 4S 3.8L engine VIN: WP0BB29988
hello,this 2008 porsche 911 targa 4s is blowing oil smoke like the car is on fire and making a hissing sound.I m assuming at this point that this is going to be caused by faulty oil seporator. my question is more about replacing and pricing.alldata is useless...
2003 Saturn Ion-2 2.2L No Start VIN: 1G8AJ52F33
Hello iatn members this saturn will not start.no spark & no injector pulse.no dtcs stored in pcm & bcm. I am leaning toward defective bcm but i wanted to get some more advises. There is run/crank relay which powers up abs2,ecm,ign fuse etc. When ignition is on...
2007 Saturn Aura XR 3.6L all lights VIN: 1G8ZV57787
The customer brought the car in and said that it was dead this morning, and they had to jump start it, but afterwards the lights were flickering. So I tested the battery first and it is good, then I tested the alt and it tested good. 14.35v no load, and 14.10 ...
1997 Subaru Legacy Outback 2.5L Passenger cams VIN: 4S3BG6856V
Just another information question as I do not work on these everyday. Vehicle was brought in for an oil leak which just happens to be the front crank seal. I noticed that both of the passenger cam gear can free spin quite a bit. Now its benn awhile since my la...
2004 Subaru Forester XT 2.5L head gasket VIN: JF1SG69664
I really need some advice before I get too deep into this.Does anyone know how to test a turbo for cooling leaks before I do head gaskets on this vehicle?It failed block dye test and after only 1 minute of running turned the rad. hoses rock solid.I'm second gu...
2003 Toyota RAV4 2.0L Excessive Emissions, Misfire, MIL Lamp on VIN: JTEHH20V03
Vehicle keeps going through ignition coils had first set of coils from standard ignition Others replaced at another shop from Napa Auto Parts. As a result of being driven with the misfire it has destroyed two catalytic convertors. Cant find the reason for the ... Trouble codes: P0300 (Random Misfire), P0420 (Cat Efficiency Bank 1), P0430 (Cat Efficiency Bank 2), P0303 (Misfire cyl 3), P0302 (Misfire cyl 2), P0301 (Misfire cyl 1)
2002 Volkswagen Passat GLX 2.8L Runs hot VIN: WVWRH63B22
This v6 2.8 has a running hot problem. At idle car heats up then guage would peg at full hot. We replaced the common temp sensor with a new green one, and flushed the system. Car started right up and after about 10 minutes idling the guage started to climb bac...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1996 Acura TL 2.5L Poor Idle Quality VIN: JH4UA265XT
Hey guys this one is FIXED!! It turns out that someone had been into the wiring harness before me and rewired a few solenoids incorrectly. The IAC control wire was spliced into the purge solenoid creating the idle fluctuations. It was purging air everytime th...
2001 BMW X5 3.0i 3.0L ABS module, steering angle sensor VIN: WBAFA53561
After much more headache this one is finally fixed. Everyone was extremely helpful. We ended up ordering a sensor directly from BMW and everything went great coded calibrated and end of line tests were all a success. Not sure if the first two replacements h...
2003 BMW 325Ci 2.5L Stall VIN: WBABN73423
So I spoke with the customer. I thought it was the DME unit. I recommend taking the car to BMW dealer just because I was not 100% sure. customer did. He just came by and reported the car needs a new DME unit. (approx $1800.00) BMW covered it under and 10 year ...
2006 BMW 525i 3.0L Broken bolt VIN: WBANE53576
Thanks for all the replies. I removed the valve cover and found that two of the three front bolts were broken. Ordered cam holding/vanos timing tool kit and chain pretension tool. Ordered the bolt kit from dealer. Not a horrible job - replaced all four bol...
1994 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP52L2R
Thank you all for your help. Many techs suggested crank sensor problems, pcm problems, and the wiring in between as common failures. Some said that the ignition switch, MAF, and harmonic balancer were common culprits. I tried blocking off the EGR and symp...
1999 Buick Century Custom 3.1L Lifters VIN: 2G4WS52M5X
Thanks all for all of the replies, we changed the oil and filter several times with sea foam, after driving car awhile engine would start missing again and would lose compression on different cylinders, I finally had the tech. pull the intake back off and remo...
1996 Chevrolet Blazer 4.3L top end of engine VIN: 1GNDT13W2T
Well, this one is all fixed. I knew it was a bad lifter all along. I guess I needed to hear it from others to confirm. Put in a new set of lifters and all is quiet once again. I still don't see why it happened right after doing the intake gaskets. Just a stran...
2004 Chevrolet Silverado 2500 HD 6.6L Stall VIN: 1GCHK23194
Well i will say this truck is fixed. For now anyway. We repalced the fuel hoses and clamps at fuel filter housing and put a vacumn on filter housing and it held vacumn, so we didnt replace it. Let the customer have it. Talked to him later and he said he had ra... Trouble codes: P0380.
2004 Chrysler PT Cruiser 2.4L Driveability VIN: 3C4FY48B84
Im assuming a new crank and cam sensor will fix this car and that is what I am standing ground to. Althogh customer denied any furter repairs at this time.
2003 Dodge Stratus SE 2.4L Computer VIN: 1B3EL36X53
2008 Dodge Caliber SXT 2.0L No Start VIN: 1B3HB48B38
Bradley and William were right on! I also noted that all the problems were related in only one part,the TIPM.I lifted the TIPM off its mounts and found one of the harness connectors was unlocked and unlatched.It took a lot of years to work its way to being ALM... Trouble codes: U0001, U110E, U110C, U0402, U1110, U1113.
2000 Ford E-350 Econoline 5.4L Heater hose tube VIN: 1FDWE35L6Y
Well, I guess I should start by saying thanks for the replies, and in the same breath, apologize for not reading the replies before I dove into it! Denny from Arizona got me to spend some time with Google. I found P/N's online and ordered from my local Ford de...
2004 Ford F-350 Super Duty King Ranch 6.0L Mechanical VIN: 1FTWW33P74
thanks to all of you who took time to read and respond. we have shipped this one. we did replace the ficm due to low voltage. it was only about 24 volts when cranking. we are not sure if the hydro-lock was the reason for ficm failure or not. the engine was hyd...
2005 Ford Freestar SES 3.9L Poor Idle Quality, Stall, Poor Fuel Economy VIN: 2FMZA57605
Thanks for all the help.As several peaple suggested the fuel rail pressure sensor was bad.I found out that when the vehicle got to a certain temperture it would start leaking fuel into the vacuum hose.By the way does anyone know the purpose of having a vacuum ... Trouble codes: P2196, P2198.
2006 Ford F-450 Super Duty XLT 6.0L Drivetrain VIN: 1FDXF46P66
Thanks to all who replied, but we have been unable to solve this problem at this time. Basically, all suggestions that were received had already been tried, so we are moving forward wirh some other ideas and will post the final outcome if we repair the problem...
1995 GMC Safari SLE 4.3L power window VIN: 1GKDM19W9S
I have given up on this. Can find no more broken wires and continuity test of wires show no problem.
2002 GMC Envoy SLE 4.2L Hesitation, Stall, on turning full left VIN: 1GKDT13S32
Customer took Vehicle to dealer and said the problem seemed to be fixed with a flash of the computer. Thanks for all the help...Dave
2003 GMC Sierra 1500 HD SLE 6.0L heating VIN: 1GTGK13U83
2007 Hyundai Sonata SE 3.3L front suspension VIN: 5NPEU46F57
thanks for all the input on this car. since i cant find anything causing the wonder and noise i am gonna suggest to the customer to take the car to a shop with a drive on lift like the kind to do alighnments and have them jounce the car [...] and maybe thay mig...
1996 Jaguar XJR 4.0L No Start VIN: SAJPX1147T
Thanks for all the help it was the crank sensor also the 6 injectors were stuck i soaked them in mineral oil blew throught hemt and the freed right up
2003 Jeep Liberty Sport 3.7L Electronic VIN: 1J4GL48K93
Well, I finally fixed this jeep. After all that checking and diagnosing, it came down to a defective remaned TCM from chrysler! What are the chances that you get a controler doing the same thing the old one was doing. I know this doesn't really help, except do...
2000 Lincoln LS 3.9L Traction Control VIN: 1LNHM87A9Y
After several hours of round and round diagnostics, found that the controller for the climate system would not go into diagnostic mode. Finally found a controller for the vehicle and installed it. Then had to have the computers programmed for comunication. Air...
1999 Mazda Protege DX 1.6L Accessories VIN: JM1BJ222XX
Thanks to the 2 repliers... Directed electronics website very helpful... also found drdetailshop.com to have some useful info for those that dont do this every day. Got the info I needed.
2001 Mercedes-Benz C320 3.2L Hesitation, Misfire VIN: WDBRE64J11
I sprayed brake cleaner under intake and sure enough there is leak under the intake so we will be removing the intake today and seeing exactly where or what the leak is thank you for the help. Trouble codes: P20D4.
2006 Subaru Forester X L.L. Bean Edition 2.5L none VIN: JF1SG69666
well thanks for all you tha take time to read my request and help. it was a headache,i did check every sigle bolt,hose belts,timing belt tensioner,remove fuel pump,fuel damper.and nathing. so i was goin to give up i had those fuel dampers out alltime so when i...
2000 Toyota Camry LE 3.0L Lighting VIN: JT2BF28K0Y
thank's for the insight the problem was the ground wire to the rear brake lites @ the trunk hige.
2000 Toyota Echo 1.5L Hesitation VIN: JTDBT123XY
Thanks for the replies guys. I finally got to spend some time with this vehicle, the readings from the 02 indicated very rich. The sensor was showing .9 volts at idle and was unable to correct. as rpm increased it would switch once in a while but definately wa... Trouble codes: P0172.
2007 Toyota Tundra SR5 5.7L MIL Lamp on VIN: 5TFBV54157
Demitrio was right on. Replaced the Fuel ratio sensor and fixed the problem. Customer went on vacation in between is why it took so long to fix. Trouble codes: P0158.
1999 Volkswagen Passat GLS 1.8L Timing Belt VIN: WVWMA63B5X
It seems the Gates belt was a little thicker than the factory belt. I put on a VW belt and the tension is what I expect with the hydraulic tensioner and no more noise. Have used a lot of Gates belts with no issues but I guess no more on this engine.
2001 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Stall, Misfire VIN: 3VWSG29M21
Hello again everybody, well it seems this car is fixed FINALLY!!! After replaceing the broken timing chain guides it still wouldnt run, so we regrouped and started from scratch. Long story short it ended up being the already replaced cam sensor that we had got... Trouble codes: P1639 (Accelerator Position Sensor 1/2G79/G185 Implausable Sign), P0343 (Camshaft Position SensorSensor-G40 Signal too high).
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