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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 12, 2013
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
1993 Acura Legend L 3.2L Excessive Emissions VIN: JH4KA7663P
Hi guys, we have a Acura 93 legend that fails NOX. We find that the computer ground to the EGR solenoid will come on for 1 second then go off. If we ground the EGR solenoid wire, the solenoid draws 700ma and NOX drops to 169. ECT temp normal, IAT ok, TPS works...
2000 Audi S4 2.7L No Start VIN: WAUDD68D9Y
Calling Audi, VW techs. I am lost. The car was towed in, no start. There is no communication with PCM. Check engine light NEVER lights.Does communicate with SRS and ABS. Have not been able to get it to communicate with any comfort systems, however everything l...
2012 Bentley Continental GTC 6.0L Starting, Circuit 15, Power Windows, Convertible VIN: SCBGR3ZA1C
Hi everybody, i have this new Bentley Continental GTC that has a starting problem and most of the electric equipments are not working. I have always message on the cluster start engine battery low, but the two batteries are ok and the car is not starting, the ...
2004 BMW 525i 2.5L Poor Idle Quality, Stall VIN: WBANA53594
Hello all this 2004 525i came in originally for a no idle and stall issue. i noticed the idle air control motor would run even with the key out if you open the doors or the trunk on the car it comes on. I made a call to identifix and after some checking we fou... Trouble codes: 2783 (Airflow sensor with HFM), 29A8, 3C1E, 2883 (Mixture preparation Bank 2 Too Lean), 2882 (Mixture preparation Bank 1 Too Lean)
2005 Buick LaCrosse CX 3.8L No Start VIN: 2G4WC53205
Car was towed in. Customer said it died going down the highway. Scan checked no codes, checked spark and fuel pressure had spark on all six cylinders, had no fuel pressure, checked voltage thru the fuel pump relay had voltage, replaced the fuel pump assm, got ...
1994 Chevrolet Lumina Euro 3.1L Heater Core VIN: 2G1WN14T4R
So I am working on my own car and having a hail of a time finding a heater core like the one that I have taken out? I am hoping someone here may have run across this before since I didn't work on these cars on a daily basis as have other techs. I have tried ...
1995 Chevrolet Corvette 5.7L Injectors VIN: 1G1YY32P8S
The vehicle was driven in to us and the customer stated that it started every time but when he stopped for a couple of hours, the vehicle failed to start. When he went to start it the next morning, it started. The custmer has had every electricle part changed ...
1996 Chevrolet Lumina LS 3.4L Poor Idle Quality, Stall VIN: 2G1WN52X6T
Hey all you GM guru's. I have a 3.4L DOHC Lumina that is throwing me for a loop. I apologize if i missed some information you may need as this is my first time ever posting a question. I have never heard the car run prior to making any repairs. of course the ...
2001 Chevrolet Blazer LS 4.3L ABS Module VIN: 1GNDT13W91
Has codes C0265, C0245, C0246, C0251, C0242, C0252, C0241 set in memory. When the vehicle is coming to a stop at the very end the pedal pulsates like an abs brake engagement. Service brakes are all fine. I am thinking it is the EBCM but have also been told tha...
2002 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF52E82
Car was next to a tree that was struck by lightening & would not start. After checking it out, I recommended a PCM replacement. A used one was installed by me by then reprogrammed by someone else. Car keeps setting P0336 code. I have gone through GM's troubles... Trouble codes: P0336
2005 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC14X75
The customer towed this one in. He said the truck made a loud noise and stalled like it ran out of gas while cruising. I confirmed the no start and heard the fuel pump engage. I tried to pull codes, but had to replace the cigar lighter fuse before I could. The...
2006 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT55K86
Hi everyone, I could use your help on this one. The customer came in with the MIL on. He had replaced the vent solenoid already and the light came back on. We tested the system for leaks using smoke with the vent valve shut. I can command it shut with a scan t... Trouble codes: P0449 (Evaporative emission vent solenoid control circuit), P0455 (Evaporative emissions large leak)
2000 Ford F-150 Lariat 5.4L Poor Idle Quality VIN: 1FTRX18L8Y
This truck is friend of mine that been on going pain. P0171 & P0174. In the past we found pcv hose and repaired, and put on MAF and it would stay gone for a while. Now is coming on all the time. He has put on a number of MAF sensors, I have smoked it a number ... Trouble codes: P0171 (p0174-), P0174
2003 Ford Explorer Limited 4.0L interior heating
2003 ford explorer 4.0 has no interior heat. Vehicle does not overheat. Thermostat and housing have been replaced, blend door actuator has been replaced - blend door operates correctly, system has been flushed, both heater hoses are hot(same temp), there is no...
2005 Ford Taurus SE 3.0L Excessive Emissions, No Start, Stall VIN: 1FAFP53U75
2004 GMC Envoy SLE 4.2L Rear wiper motor VIN: 1GKDT13S84
The motor does not work from rear wiper switch, Tested wiring to motor, orange wire is for supplied ground. Have done motor test Yes It does run!! Anyone had this problem before? Thanks Len
2005 GMC Sierra 1500 SLE 5.3L lighting VIN: 2GTEK19BX5
This truck in particular has the vin B 5.3L and has a Generator Battery Contol Module. Original alternator tested perfectly but intermittently the lights will fluctuate like the regulator is shot. Problem occured primarily when held at 2000rpm. Replaced the al...
1999 Infiniti Q45 4.1L Misfire VIN: JNKBY31A7X
Engine missfires at idle only, can feel it twitching several times a minute, not a dead miss, it is very intermittent. Happens less when engine is first started or after it is fully warmed up. Replaced ignition coil and #6 plug, still missfiring. Replaced coil... Trouble codes: P0306, P0325, P0330
2002 Isuzu FTR 7.8L Starting VIN: 4GTJ7C1342
Hello iatn Diesel Heavy DUTY technicians, Got A 2002 ISUZU FTR with the 7.8l 6 cyl Diesel. I don't normally work on these heavy duty trucks but the owner is a great customer of ours. The difficult part for me is that I do not have any wiring diagrams or fuse/...
1999 Lexus RX300 3.0L MIL Lamp on
This is really two issues: Issue-01)Basically this vehicle throws a P1351 and starts acting funny. The customer states that they are worried that it will cut off. I have not been able to see the problem myself, as it is intermittent. Per Alldata the diagnosis ... Trouble codes: P1351 (Deviation in crankshaft position sensor signal and VVT sensor bank 2 signal 2-trip detection logic)
1989 Lincoln Town Car Signature 5.0L Manual High Beam Control VIN: 1LNBM82F9K
Vehicle cam into shop with high beam headlights not working when auto lights are turned off. Lights work properly with auto lights on. Dimmer switch has been replaced, have tested all relays in system and all checked good, even replaced relays just to be sure....
2000 Lincoln Continental 4.6L Surge VIN: 1LNHM97V1Y
Hi all thank for the help in advance. I have a 2000 Lincoln Continental with a 4.6 the trouble is it surges between 27 t0 37 mph. No codes, and in mode 6 it dose not show any miss counts for $53. There is a TSB for computer up date. I have done that updated co...
2006 Mazda 3 i 2.0L No power steering VIN: JM1BK12FX6
No power steering. No Mazda dealer with in 500 miles.
2007 Nissan Quest SL 3.5L fuel guage VIN: 5N1BV28U57
any help on this vehicle would be greatly appreciated this is becoming a problem.
1999 Porsche 911 Carrera 3.4L code 5 VIN: WP0CA2995X
thanks in advance ,i'm going crazy w/ this car .car came in top not working,inspect the cylinders and they were leaking ,replace 2 cylinders put new fluid ,when i try noting works ..after closing the shop,no phones ,no customers i found that the potentiometer ...
2002 Saturn Vue 3.0L Engine VIN: 5GZCZ63B02
Hello Everyone,once again I need your help.This unit came in our shop one year ago for bad oil leaks at timing belt area,at that time I cleaned the engine really good and checked for oil leak,I kept the car for almost a week to monitor for leaks but no oil lea...
1994 Toyota Previa LE 2.4L Fuel system VIN: JT3AC12R6R
Van came in shop with fuel leaks after customer fill up all the way to full. Check and found liquid fuel coming out of canister vent tube. Check for gas tank leak, none found. Let customer drive until 1/2 tank, and customer left vehicle with us. Smoke test , n...
2009 Toyota Camry Hybrid 2.4L Unknown VIN: 4T1BB46K19
hi every one, I have here a 2009 toyota camry hybrid,heater output poor when at a light and engine goes into eco mode, meaning engine shuts off heater air output cools down to 80 deg, if you keep engine running it stays at 130 deg,electric water pump is runnin...
2003 Volkswagen Passat GLX 2.8L Heat VIN: WVWRH63B43
The air does get insignificantly warmer (still icey cold) when temperature adjusted to hot. It's a 6.6 hour job (priced to customer at 5 hours) to do the heater core, and the actuators run ~$50 a piece, Ideally I'd price the heater core, all 4 motors, and just...
2007 Volvo S40 2.4i 2.4L timing belt broken serp belt VIN: YV1MS38297
Hello IATN folks. I have this 07 Volvo in for the second time for the same issue. The serpentine belt shreds and ends up in the timing belt. The first time in broke the timing belt. This time it just made the timing jump wiping out the valves. It appears that ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Cadillac Escalade 6.0L Stability VIN: 1GYEK63NX2
Thank everyone for helping. Replace new RTD module and then recalibrate it and it seem to be fix. Thank again and have a happy Hoilday!
2003 Cadillac CTS 3.2L starter VIN: 1G6DM57N53
Thanx for all your help, customer decided it was time to trade car in. Come to find out, problem has been happening for years. Tranny also not right, very week in low gear. All components tested good, all parts were GM, this one is down the road!
2008 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DT57V98
This was a tough one. After acquiring help from Identifix I believe this one is fixed. As I stated before this one had been to the dealer 4 times before. I Checked MAF wiring, Cats, Vacuum, Smoked Intake. no apparent signs to explain running issues. I did noti... Trouble codes: P0101, P0304, P0300 (misfire).
2011 Chevrolet Silverado 1500 LT 4.8L power steering VIN: 1GCNKPEA4B
Thanks to all who replied, Truck is fixed, I had trouble determining what was at fault. I even spoke with A1 cardone and federal mogual. I could not find specs for the pressure testing. I removed the return hose from the cooler and flushed to no avail. I bypas...
1999 Dodge Ram 1500 Laramie 5.2L ignition switch VIN: 1B7HF16Y9X
Thank you all very much for you reply's to my post they where all very helpful. the issue ended up being at the pcm connector 1 pin 2. the green/black wire for the ignition switch sense was loose and had worked its way out of the connector. i was testing it an...
2011 Dodge Durango Crew 3.6L fuel pump VIN: 1D4RD4GG0B
Sometimes it is the simple things that trip us up. The vehicle is starting and running fine now, no more draw, and fairly painless repair. Some have stated that it was not until after the fuel pump was replaced that they realized the issue had nothing to do ...
2000 Ford Expedition XLT 4.6L heater core VIN: 1FMRU1662Y
It was both Heater cores that were not clear all the way never seen this before where you could blow through the core but no heat. Lesson learned. Thanks for the help.
2000 Ford Windstar LX 3.8L Misfire VIN: 2FMZA514XY
2003 Ford Explorer XLT 4.6L low howl air intake VIN: 1FMDU73W83
It has been two weeks and the customer has had no noise return. The factory idle air control was the trick. Two aftermarket iacs did not change a thing. To all the fellow techs who gave help and advice I thank you.
2005 Ford E-350 Super Duty 6.0L Hesitation, Surge VIN: 1FTSS34P55
Sorry for the delay, customer had to have vehicle and has yet to return for further testing, I will open up new request or update this one if I get vehicle back. Trouble codes: P0266, P1378.
2003 Mazda Tribute LX 3.0L No Start, Poor Idle Quality, Cuts out, Stall VIN: 4F2CZ94103
Hello everyone, I am sorry that it took so long to get back you all of your replies. When I scoped the cam/crank signals I was only seeing bank2 cam to crank relation because this only has one cam sensor. When I removed the upper plenum was able to perform com...
2005 Mercedes-Benz C320 3.2L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: WDBRN64J05
Hello again everyone and thank you all for your help. I ended up checking all your posts and everything turned out to be functioning within specs. Last thing l did was to change the air filter housing and the problem solved. It has been 5 days with no check en... Trouble codes: P0172 (p0175-), P0175.
2003 Nissan Maxima SE 3.5L no power VIN: JN1DA31D13
thanks to all that replied . I decided to go with a mass air flow sensor however that did not fix the problem . unfortunately that is about all the time I have for it .
2007 Nissan Altima SL 3.5L Instruments/ front blower motor VIN: 1N4BL21E37
Thanks for all of the suggestions but I was stopped dead in my tracks every attempt because the wiring diagrams that I obtained from all data and identifix did not match the connectors in question for pin out testing. I had the correct connector in hand but wi...
1997 Oldsmobile Achieva SL 2.4L abs VIN: 1G3NL52T2V
Ok I am happy to say this car is fixed customer has been driving more than a week with no ABS light! The information I found explained how the code sets. When the car starts and abs runs its check it rehomes the motor by running the three motors in the motor p...
2000 Saturn SL2 1.9L Reverse VIN: 1G8ZK527XY
First of all I want to thank everyone who replied. The consensus was a fault in the valve body, and pin pointing the cause of the failure, (obligated valve port, broken spring). The local dealer wanted $$$ for the part. I found several on Ebay. Fortunately the...
2007 Subaru Impreza 2.5i 2.5L Vent Valve VIN: JF1GG61637
Thank You guys for helping me. I've been lucky this car don't have the IMMO and my friend let me try another ECM (used) - nothing changes !!! So I start looking for hoses blockage and inside the pipe that protrudes vertically up into the frame (on top of the c...
1997 Toyota Corolla DX 1.8L Powertrain VIN: 2T1BB02E8V
I appreciate all the help. The customer decided not to replace any of the mounts for right now and just deal with the noise.
2001 Toyota Avalon XL 3.0L battery VIN: 4T1BF28B01
This vehicle is not fixed. I pulled the radio and heater control unit, multi display and the speakers in the dash and the ignition switch had already been disconnected before hand. Still had the draw. I did not see the tip about the amp under the seat until af...
2005 Toyota Camry 2.4L left front brake VIN: 4T1BE30K45
Problem was with aftermarket master cylinder. We replaced with factory part and set pushrod length everything its ok now. thanks for the help !
2008 Toyota Tacoma 4.0L 4wd VIN: 5TEUU42N88
Thanks for all the help the shift motor on the transfer case had a bad limit switch. Was able to determine this by checking signal at 4wd module. pins b22 b23 b24 b25 was unable to get 12v in 4wd. Customer has opted not to replace due to 1100 price tag. Thanks...
2009 Toyota Matrix 1.8L Gear Oil VIN: 2T1KU40E99
Most people said they were using 75w90 and since that is what Toyota has used in their FWD transaxles previously, that is what I put back in it. 75W90 is definitely thicker than what came from the factory and the customer did notice that shifting was stiffer u...
1982 Volkswagen Vanagon Campmobile 2.0L No Start VIN: WV2ZA0254C
well this one is out of my hair, turns out that a combination of worn out points and a mixture that i wont call gas was causing all of my problems. new points, condenser and a fresh load of gas and all is well. thanks to all that replied to my desperate call f...
2001 Volkswagen Jetta GL 2.0L shift VIN: 3VWST29M41
Yes I have fixed this car with getting tcm module from a 99 jetta (that is what transmission came out of.) Called with 99 vin and tracked down correct tcm. Thanks to all Nate
2005 Volkswagen Jetta 2.5 2.5L Hesitation, Cuts out, Misfire VIN: 3VWRF71K05
thanks for all the replies I pulled the timing chain cover and sure enough the chain is stretched. in the process of doing the timing chain now again thanks for all the help Trouble codes: 18711 (leak in air intake system p2279 not a plauseable signal intermitet).
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