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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 5, 2012
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for All Makes and Models
Help Request Answers
2001 Audi S4 Avant 2.7L air bag light VIN: WAURD68D81
customer had check engine light on and air bag light on we performed up stream oxygen sensor replacement both left and right banks and performed diagnosis of air bag light and came up with 00589 indicating Ignitor 1 for airbag passenger side N131 value of resi...
2005 Buick Rendezvous CXL 3.4L temp. gauge VIN: 3G5DA03E55
temp gauge works fine until it reaches halfway between 1/4 and 1/2 then it stops there until the temp on the scanner reads 220F then the gauge jumps to halfway between 1/2 and 3/4 during this hole time the temp on the scanner is working normally climing to 225...
2004 Cadillac CTS 3.6L no ecm comm VIN: 1G6DM57714
Car will not start. Wont crank. No check engine light. No ecm Comm. Tried programming ecm with update for no start. Also replaced ecm. Replaced tcm. Called GM tac assistance 3 times. Used to start and run when jumping starter relay. Now it doesn't start at all...
2006 Cadillac STS 3.6L Stall VIN: 1G6DW67796
The customer says that this vehicle stalls intermittently at times. It always starts back up and runs fine. Sometimes it happens at a stop and other times it will happen while driving down the road. Hot or cold engine doesn't seem to be a factor. I can never g...
1999 Chevrolet Express 3500 6.5L Instrument cluster VIN: 1GCHG35F9X
This vehicles speedometer bounces all over the gauge and when the speedo reaches 100+ mph the vehicle misfires and feels as if its shutting down, (Fuel related cut out) Checked speed sensors, Ok, 8 months old Checked wiring, Ok Checked and cleaned all grounds ...
2002 Chevrolet S10 4.3L Misfire VIN: 1GCDT19W62
We bought this truck for cheap at a local sale cause the crank was bad in it. I installed a crank and all was good but we have a misfire on cylinders 1 and 4. Not sure if the misfires were there before or not, but I'm thinking not. The new crank did not come w... Trouble codes: P0301 (p0304-), P0304 (p0300-), P0300
2000 Chrysler Cirrus LXi 2.5L obd2 VIN: 1C3EJ56H9Y
car came in with check engine light and we fixed a signal wire,cleared the computer.the next day she came back with an evap code and we fixed the filler neck and sent her on her way.after driving under all condition to meet moniter rediness ( over 800 miles) t...
2002 Chrysler PT Cruiser 2.4L Surge, MIL Lamp on
hi all i have this problem with pt cruiser 2.2 crd 2002.i have this code p0191 fuel pressure sensor permanent.i changed the rail with sensor and regulator on it,rebuilt the engine wiring ,changed only the wires leading from ecm to sensor,high pressure pump,inj... Trouble codes: P0191
2007 Chrysler Pacifica Touring 4.0L MIL Lamp on VIN: 2A8GF68X67
This thing has been eating my lunch the gas cap lamp was coming on found faulty purge solenoid replaced and now i get a po440 and the system does seal and the valve on the bottom is sealed properly and indexed with connector at 3o-clock also it does pass and l... Trouble codes: P0440 (Evap system general)
1998 Dodge Durango 5.2L No Start, No communication VIN: 1B4HS28Y5W
Most obvious problem with this vehicle is no communication with computer which therefore do not have any fault codes. We have communication OK with ABS module and Body which are the only other modules listed in Snap On. However the wiring shows CCD bus lines g...
2003 Dodge Sprinter 3500 2.7L Hesitation, MIL Lamp on VIN: WD2YD54233
keep getting code p0100-64 mass airflow plausability #3 code code appears when driving under acceleration doesent seem to have the power it should also when accelerating has a hissing sound like the exaust is plugged checked maf wiring,replaced maf and boot to... Trouble codes: P1006
2006 Dodge Dakota ST 3.7L starter VIN: 1D7HE22K66
OK,girls and guys this truck is in great overall condition. It was purchased here in St. John's NL, then driven to a small rural community with no dealer, or even a well equipped shop. With absolutely no warning it just wouldn't crank. I'm three hundred kilome...
2007 Dodge Charger R/T 5.7L cooling fan 2 VIN: 2B3KA43H27
Cooling fans shutting off when parked and running,(police)Did not get to much time to check yet since we brought back from dealer.Wanted to post to see if any body has seen wiring harness chaffing issues.We think it might the FCM module?We could cool the modul...
1995 Ford Bronco Eddie Bauer 5.8L Hesitation, Cuts out VIN: 1FMEU15H1S
HELP!!! Very nice Ford bronco at times wants to fall on it's face on light accelaration take off. Once you get on the trottle in runs great until next stop. Never stalls just stumbles almost to stall until you get into trottle? Found bad egr stuck closed due t...
2001 Ford Mustang GT Bullitt 4.6L Hesitation, Surge, Cuts out VIN: 1FAFP42X51
Vehicle runs flawless otherwise. The surge /stumble occur cold on light acceleration for 4-5 +/- seconds.
2002 Ford Windstar 3.8L Shiftlock VIN: LFMZA51442
As a GM trained mechanic I thought I'd run this one by the Ford folks in the know...I was not able to find an archives on this subject. Customer minivan will not allow her to put the vehicle from Park into Drive when running. She can however turn the engine o...
2003 Ford F-350 Super Duty XLT 6.0L turbo VIN: 1FTSW31P13
Vehicle is slow to boost,no power.wot will produce 10-11 psi.Checked intake and exhaust for restriction,ok.Removed intercooler tubes and intercooler to inspect for blockage,ok.Vehicle has egr delete kit installed.Vehicle starts and idles good.Performed balloon...
2004 Ford E-350 Super Duty 5.4L Excessive Emissions, Hesitation, MIL Lamp on VIN: 1FTSE34L14
This van got towed in. The sock on the bottom of the fuel pump disintegrated, jammed the pump and fried the pump and the driver module ahead of it. I replaced both along with fuel & air filters. All of the parts replaced were ford parts. The truck fired up and... Trouble codes: P0172, P2196, P2198, P0190, P0175
2004 Ford E-250 4.6L IP cluster VIN: 1FTNE24W44
concern, dash lights inop, radio inop, cluster gauges inop along with no warning lights. Found no comm with cluster checked power and grounds found all ok. Installed new cluster connected battery and keyed up with normal operation aprox 15 seconds than smoke f...
2007 Ford F-350 Super Duty XLT 6.0L Noise VIN: 1FTWW31PX7
Greetings fellow techs.This turbo has a very high pitch whistling noise coming from the turbo especially at idle. If you disconnect the VGT solenoid the noise immediately disappears. We tried a different solenoid and no difference. We got a USED turbo and inst...
2002 GMC Envoy SLE 4.2L Air Conditioning VIN: 1GKDT13S32
When this vehicle came in the first time in March it was not cooling and High pressure was high enough to cut off the compressor. Had a DTC for Fan speed. We replaced the fan clutch and evacuated and recharged the A/C to be sure we had the correct charge. Syst...
2004 Honda S2000 2.2L HID Headlight VIN: JHMAP21444
Right side HID Headlamp out, replaced bulb, still non-op. Checked power and ground to controller, both good. System uses two separate parts for the controller and the ignitor for each lamp. Honda sells control unit and ignitor seperately at over $200 each, ...
2000 Infiniti I30 3.0L Cuts out, Misfire, MIL Lamp on
Vehicle presented with PO1320 & driver complaint was "tugging"/lack of power on initial cold start-up and drive away. I replaced all coils & sparkplugs which appeared to be OE and cleared DTC PO1320. Just for drill I inspected the MAF meter, found contaminatio... Trouble codes: P1320
1989 Jaguar XJS 5.3L AC compressor VIN: SAJNL4849K
Trying to fix this customers AC. Previously converted to R134a (not by me). Came in empty, leaking at compressor body. Found compressor was also broken internally. Replaced with reman unit. Also replaced condenser and drier. Wired electric fan to come on with ...
1999 Jeep Grand Cherokee Limited 4.7L No Start, Stall VIN: 1J4GW68N3X
this jeeps dies occasionally always hot sometime idling cools off starts and goes, when dies gauges go dead and stay dead, it cranks fine when it quits. can turn the key to on and when gas gauge registures it will start sometimes the anti theft light, key with...
2008 Land Rover Range Rover Sport Supercharged 4.2L Lack of power VIN: SALSH23418
Got the truck in with lack of power after driving for approx 5 min. at 40-50 mph. Replaced MAF, same problem. scan computer for codes, found temp code P2601- coolant pump control ckt range performance. any thoughts on this?? really appreciate the help.
2009 Mazda 5 Touring 2.3L battery VIN: JM1CR29329
The battery goes dead if the vehicle has been parked for several days. It is ok if run every day or every second day. This vehicle has a 650 ma draw when first shut off, which drops to 300 ma after 2 or 3 minute and drops to 150 ma after about 20 minutes. The ...
1991 Mercedes-Benz 190E 2.6 2.6L No Start, Poor Idle Quality, Surge, Stall VIN: WDBDA29D5M
vehicle sat for 2 years .added fresh fuel replaced filter started right up and was driven all summer.recently started to stall when hot and hard starting after stall,also hard start hot after shut off.now vehicle is no start unless i manually push repeatedly o...
2003 Mercedes-Benz C230 Kompressor 1.8L Poor Idle Quality, Misfire VIN: WDBRN40J13
problem .. when cold car has an unstable idle and programa scan software showes a miss on cylinder 2 for about 3 to 5 seconds and only when cold again car has new injectors / plugs and coil after driving for a few minutes no issues whatsoever about every... Trouble codes: N0NE
2007 Mercedes-Benz CLK550 5.5L Mechanical VIN: WDBTK72F47
This car came in on a hook. The customer stated that the vehicle came to a stop and when he started to go the car would not move. No forward or reverse gears. You can't even feel the transmission go into gear. The display shows it is in gear. the transmission ...
1996 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MELM75W7T
Car came in about 3 weeks ago with the check engine light on. The code were p0171,po174, and p0430, explained the situatuion to the customer and replaces mass air flow meter and waited to see if p0430 returned. the code did return so we replaced the left conve... Trouble codes: P0420 (Catalyst efficiency below limit b1)
1986 Nissan 300ZX 2 2 3.0L Cuts out, Stall, No power VIN: JN1HZ14S2G
Car is hard to get started, once started it will idle great cold or hot. Upon actuation of throttle car will stumble and stall. Delicately giving the car throttle it is difficult to get it to move under its own power. Never missfires just stumbles and stalls. ...
2001 Nissan Sentra SE 2.0L Poor Idle Quality, Cuts out VIN: 3N1BB51D01
Hello This one has been at this shop longer than I have. When it came in it wouldn’t idle and the fuel pressure tested low so a Fuel pump was installed. The tech that did that tells me that the sock was full of metal that he figured came from the damaged pump....
2002 Pontiac Bonneville SE 3.8L extended crank VIN: 1G2HX54K12
first time help request. new customer came from many other shops. car runs great all the time, starts great cold. if she lets it sit while in a store or something and comes back out it cranks for a few seconds and starts up.. she says sometimes it will stall a...
2004 Pontiac Grand Prix GT2 3.8L Theft System VIN: 2G2WS54284
This car had an issue with mph not reading correct so i replaced the cluster with a used on . The prob. Was the miles on the new used one was too much more so without starting the car i put the original one back , but when i tried to start it the theft indicat...
2004 Porsche Cayenne S 4.5L water pump VIN: NP1ZZZ9PZ4
customer landed on door step with water pump and some alloy cooling pipes,says these replace plastic original ones,have no books on this,is this a straight forward job or can it be nasty and cost more than what its worth.,.thanks
1995 Saab 9000 CDE 3.0L Alternator VIN: YS3CF48W3S
Have Talked To identifix and Bosch Tech Lines And Still have Low Voltage To battery, Voltage Starts Out At 13.8 but after Running 5 to 10 Min it Will Go to 12.2 volts worse with a Load Have Used Alt on now has what i can Tell Aprox 70 amp Output with Inductive...
1991 Toyota Camry DLX 2.0L no spark VIN: JT2SV21E1M
alldata diagnostic flow for no spark, i checked connectors in system first which fixed no power to ignition coil. after that i forgot to check resistance to plug wires but continued on. resistance of coil primary just higher than spec. pick up coils resistance...
1996 Toyota Camry DX 2.2L Cuts out, Stall VIN: 4T1BG12K1T
This vehicle is starting and dying right away. It will run on carb clean for ever. Checked fuel pressure and volume and it checked ok. Checked injector pulse and it goes away after 3 seconds. The vehicle will stay running on carb clean with out a problem and w...
2003 Toyota Corolla CE 1.8L Mechanical VIN: 1NXBR32E23
Vehicle came back with a noise at the front of the engine. We replaced the serp belt tensioner and alternator pulley and that resolved the cusomers complaint.I drove the vehicle after that and noticed another noise that was hidden by the tensioner noise.The no...
2003 Volkswagen Jetta GLS 1.8L Headlights VIN: 3VWSE69M13
The vehicle arrived with no headlights, either with or without the ignition switch being turned on. I have very little experience with this make of vehicle. I am familiar with headlight systems that only work when the ingition is on, which raises the question ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 Buick Park Avenue Ultra 3.8L No Start, Stall VIN: 1G4CU5215S
Thanks everyone for all the help Hi check out my powers and grounds Make sure they're all clean. that I found out I had no injector pulse. and fuel pressure was still a bit low even when to decide to fire up. I found those miss the ground for the PCM. replaced...
2002 Buick Century Custom 3.1L no rear turn signals or brake lights VIN: 2G4WS52J82
Thanks for everyones help. When I checked the light sockets in the rear the were hot but the ground was corrodid. Cleaned sockets and lights all work now. Sometimes I seem to overlook the simple things, once again thanks for the help.
2000 Cadillac Escalade 5.7L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GYEK63R9Y
I forgot to add that compression was in specifications. We removed the PCV valve from the valve cover and covered the valve and valve cover opening with a small piece of paper. There was strong vacuum at the valve cover opening. Spraying carb spray down the di... Trouble codes: P0171 (Lean bank one).
2000 Chevrolet Silverado 1500 4.3L trans inop VIN: 2GCEC19WXY
A big Thank You to all who responded to my request for help. Most of you referred to the input spline dimensions. The two transmissions I received had the smaller input shaft and I was using the larger convertor because the smaller convertor would not bolt...
2005 Chrysler Pacifica Touring 3.5L No Start, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 2C4GM68415
thanks all for your replies. I installed factory sensors cam and crank with no change in symptoms. Customer elected to take vehicle and not pursue farther at this time. Trouble codes: P0335 (Crank sensor circuit).
2001 Dodge Neon ES 2.0L No Start VIN: 1B3ES46C51
as everyone pointed out the compression was too low so i pull the timing cover back off and removed the belt timing marks were still lined up so i pulled off the cam sprocket and there was the broken dowel pin i would like to thank...
2003 Dodge Sprinter 2500 2.7L MIL Lamp on, Hard start hot VIN: WD2YD64103
THE PERSON DID NOT COME BACK FOR US TO FIX THIS HE DID NOT WANT TO BUY A 1600.00 ECM YHANH FOR ALL THE HELP Trouble codes: P1190 (80- Fuel pressure solinoid circuits shorted ground or battery).
1995 Ford F-150 Eddie Bauer 5.8L Reverse VIN: 1FTEX14H2S
Customer did not want to go further into this, he was satisfied with the smoother engagement into drive by cleaning the maf and doing a relearn. thanks for the help
2003 Ford Expedition XLT 4.6L Hesitation, Poor Fuel Economy VIN: 1FMRU15W73
thanks to everyone that replied.i did a back pressure check and found exhaust on bank one was clogged.replaced cats and problem solved.thank again to iatn and to all the techs that offer help. Trouble codes: P1549.
2007 Ford Ranger XL 4.0L Compressor VIN: 1FTZR15E07
Thanks to all who answered.Like some of the replies said ck the basics.I went on the notion the other techs "checked " everything.Well the reason my compressor would cut out on snap throttle and higher rpms---the high side pressure switch wireing in the connec...
2003 GMC Envoy SLT 4.2L MIL Lamp on, reduced power mode VIN: 1GKDT13S93
THANKS TO ALL WHO TOOK TIME TO READ AND RESPOND. The computer again failed, loosing the supplied ground for sensors. We were able to determine that it would smoke the ground circuit every time the a/c was turned on. We noticed a broken wire at knock sensor. Af...
2005 GMC C5500 Topkick C5C042 6.6L No Start VIN: 1GDE5C3205
Thank you all for the replies, Some info was quite helpful. This Truck is fixed with 1 injector that was leaking on the high pressure side. The tool we used puts shop air into the injector and watch for a leak, Apparantly 140psi was inadequite to show us the p...
1994 Honda Accord LX 2.2L No Start VIN: 1HGCD7148R
thank you for all the responses, fellow technicians most of you were right on the target, and yes COMPUTER did not see rpm's I replaced the ignition distributor and that was the fix.thank you again
2000 Jeep Cherokee Sport 4.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire VIN: 1J4FF48S0Y
Thanks for all the help. The problem was the crank sensor. I replaced it twice, along with the flywheel and signal wire, My lab scope pattern was erratic when hot and the engine would miss and eventually shut down. It would immediatly start and run okay for ab... Trouble codes: P1391 (CMP or CNK sensor intermittant), P1351 (Ign coil 1 primary circuit), P1352 (Ign coil 2 Primary circuit), P1353 (Ign coil [...] crcuit).
2008 Jeep Wrangler Unlimited X 3.8L Sas VIN: 1J4GA39108
Hey Thank you all. I found the problem the new clock spring was one turn off, it came like this from the dealer!! While rechecking my work I scanned the sas with my scanner and found that the clock the steering angle sensor was 359 degr. steering wheel strait...
1992 Mercedes-Benz 400E 4.2L Battery VIN: WDBEA34E1N
Hey everybody. Thanks for all the replies on this Benz. Sorry it has been so long but I have been out sick for a while. Richard from New York was right on the money. I disconnected both of the amps for the factory radio in the trunk and the power antenna and m...
1992 Nissan Maxima GXE 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire VIN: JN1HJ01C8N
Hi folks: We received quite a few replies to our querries, but unfortunately problem was my tech pinch the lower injector "O" ring on # 3 cylinder causing lot of fuel leak into cylinder. We spend lot of times and money for found very basic thing. Many thanks ...
2002 Nissan Altima SE 3.5L Misfire VIN: 1N4BL11D32
Well, this one is down the road motors. It turned out to be a coil under the upper intake. The only way I was able to determine which bank the misfire was on was by viewing the front and rear bank 02 sensors and see which signal picked up a hickup during the m...
1967 Oldsmobile Cutlass 5.4L Misfire VIN: 338677M180
first off, thank you for all the replies. Thosec of you that said points + condensor, were right on the money. replaced uniset and all is well, just because dwell was right doesn't mean they are good as i found out. thanks again for all the help.
2000 Plymouth Neon High Line 2.0L Poor Idle Quality, Hesitation VIN: 1P3ES46C7Y
well the customer gave the green light on fixing the intake gasket leak. sure thing it need it the gasket was done it was more than flatned in. so put new ones took it for a drive and the car felt lighter going down the road it actually had power and ran smoot... Trouble codes: P0172.
1988 Pontiac Fiero GT 2.8L Timing/Runability VIN: 1G2PG1199J
First off I want to thank everyone who helped me on my first help request... The car is running. The timing was off but I could not figure the right sequence to put it back together right. The timing gear that was on the car when I received it was after market...
2002 Pontiac Grand Am GT 3.4L starter VIN: 1G2NW12E02
Removing the wireing hack the customer performed and replacing the igntion switch fixed the entire problem thank you to everyone for the help
2001 Subaru Forester L 2.5L Running Lights VIN: JF1SF63501
i had assumed running light switch was operating as button on top was working. it how ever was not shutting lights off. so i ordered a new switch and installed and no more problem. so i'd like to thank everyone for sending information for my problem.
2003 Toyota Corolla CE 1.8L No Start VIN: 2T1BR32E53
today i put a new ecm and all my problem are gone thanks to all of you guys.
2002 Volkswagen Jetta GLS 2.0L Drivers Side Lights VIN: 3VWSB69M02
We determined it is the comfort module that is causing the problem. we unplugged one of the connectors and now the lights don't stay on. all headlights work fine switch works fine. doors still lock and unlock but, the alarm doesn't set with that connector unpl...
2005 Volkswagen Passat GLS 2.8L Low beams VIN: WVWRU63B05
I want to thank each and every Mechanic that responded to my plea for help on the VW light problem. Actually the owner of the vehicle was from out of town when I was asked to repair it. They did leave to go back home before I could finish the repair but I did ...
2006 Volkswagen Passat 2.0T 2.0L Cam Timing VIN: WVWAK73C86
2001 Volvo S40 1.9L No Start, MIL Lamp on VIN: YV1VS29551
finnaly got it to stall no start. labscope at pcm no fuel injector ground, exchanged pcm w/ rebulit. off to dealer for re-program and theft re-learn. thks iatn
2004 Volvo S40 1.9L Misfire, MIL Lamp on VIN: N0TAVE1LAB
Thanks to everybody. Todd was right. Too much oil (1.5 qts). Also everybody else was right. Had to replace coils and wires with Volvo parts. After i corrected the oil level drove the car and the misfire moved to 4500 rpm ( was 3000 rpm). Then I put the coils ... Trouble codes: P0303, P0300, P0300.
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