Prev iATN Members TechHelp for September 6, 2008
Automotive Technical Exchange for the Automotive Repair Professional		 Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for All Makes and Models
Help Request Answers
2004 Audi S4 4.2L air bag mil
Hello gentlemen. This 04 S4 Audi came to us from another shop. They installed an Alpine Nav unit(IVA W505). After the install the Air Bag MIL would come on 10 minutes after every start up of vehicle and would stay on until ignition was turned off again. The ot...		 View
1999 Buick LeSabre 3.8L steering pump
I have to list this even though it may seem obvious after hearing the whole story. This vehicle came to us with the accessory belt slipped off it's pullys and power steering fluid around the pump area. Upon further investigation it became clear that the front ...		 View
2001 Chevrolet Astro 4.3L Fuel Gauge, Temp Gauge, Instrument Cluster
Hey guys, I need some help on this one. First of all, this car came in stalling, bogging, and hard to restart after stalling. I've checked all of the basics and came down to a bad aftermarket fuel pump pushing not enough volume. Replaced it with an ACDelco par...		 View
2004 Chevrolet TrailBlazer 4.2L oil gauge and speedometer
I am leaning towards the cluster. Just wanted to throw this out there to get a few opinions. The oil pressure will run 60psi and all of a sudden drop to -0- then may move around from there. The speedo is doa. The speed sensor does read on my monitor though.		 View
1986 Chrysler LeBaron 2.2L No Start, Stall
car stalls intermittelly. when stalls it has no fuel coming out of injector and no spark. it will start back up after a few minutes. at shop only happened once and then can not duplicate problem again. run for over 2 hrs and shut off to cool down and started u...		 View
2001 Dodge Ram Van 5.2L Hesitation, MIL Lamp on
Hey Dodge Guys : I have 2 2001 Dodge Vans doing almost exactly the same thing. about every other day, in the first 5 minutes of driving, they will intermittently hesitate & backfire for 10/30 seconds, then be fine. both are low mileage 76K & 59K. Ive driven w/... Trouble codes: PO601 (internal ECM fault).		 View
2001 Dodge Caravan 2.4L park & neutral
This van makes a rotating noise when in park or neutral and it is engine speed dependent. The noise is absent when the transmission is in gear, to me it almost sounds like a deep belt noise. When you shift it into drive from park or neutral it makes the same t...		 View
2001 Ford Escort 2.0L compressor
Has current through all safety switches but no current to the a/c compressor. Vehicle has hestation and sometimes a surge when driving, believed to be related to this problem.		 View
2002 Ford Pickup 5.4L rear brake
This vehicle came into the shop for a brake job. the rear pads were worn badly so that the piston on the right side caliper was out. We replaced both rear rotors, calipers and pads, bled the system all seemed ok. But when we started the vehicle the pedal went ...		 View
2001 Honda Odyssey 3.5L Torque Converter Clutch Solenoid
Hello all, I'm hoping someone has run into this before. Vehicle has a PO 740, torque converter clutch solenoid trouble code stored in memory. Vehicle has no abnormal symptoms. I have cleared the code twice now, we do not do alot of transmission repairs here an...		 View
1992 Lexus ES 300 3.0L starting system
alright well this vehicle came in with rod knock, and we replaced the motor, vehicle ran coming into the shop, replaced the motor, now wont run. had no injection plus, and spark. disconnected the alarm system, cuz thought it was cutting everything out, so to...		 View
1999 Mazda 626 2.0L No Start
customer stated quit running when coming to a stop. cranks won't start. I have good spark, injector pulse, fuel pressure. Whats a good reading for maf sensor while cranking?		 View
1972 Mercedes-Benz 280 SE 2.8L Cuts out, Stall
This is customer's s"baby" and he brought it to us for no start. We replaced the fuel injection pump and it started. We then test drove the car, and it will run for 15-20 minutes then stall. We put a fuel pressure gauge in the line and noted the fuel pressure ...		 View
2005 Mercedes-Benz CLK500 5.0L Limp Mode
I have this 05 CLK500 with no shift from transmission it does not slip but does not shift its in limp mode, found P0600 which is serial communications failure, could not communicate with transmission control module, we believe we need to replace transmmission ...		 View
2006 Nissan Altima 2.5L srs lamp
Vehicle was in front end collision and air bags did not deloy. Srs lamp is on steady and has a code B1209. No information about this code in alldata or mitchell. If anyone knows what this means it would be greatly appreciated to enlighten me. Thanks. Also sorr...		 View
1999 Saab 9-3 2.0L vibration
The alignment tech in my shop is throwwing in the towel on this one so on monday morning it will be my problem The owner of the shop requested that I write in for help.This saab has a front end vibration on the highway.The tech has replaced the lower control a...		 View
2000 Saab 9-3 2.3L inner tri-pod joint
Hello Saab Tech's In the process of replacing the inner boot on the LH axle I found that when removing the boot the tri-pod did not slide out as with other Saab joints. I went to WIS for info and it said for a B235R to pry back the plastic retainer in order to...		 View
2001 Volkswagen New Beetle 1.8L brake booster
this car will not have any power brakes after it sits for a while or overnight. i tried it after sitting 5 hours and it worked fine, but the customer states every morning it will happen. we replaced a bad hose to the booster a few months ago for a more constan...		 View
2002 Volkswagen Jetta 1.8L Surge
this jetta was bought at auction and has two problems i need help with. this car is 1.8 turbo and seems to run great except for surge under load. it idles normal and drive normal on level roads but under load it surges . there are no codes and no apparent air ...		 View
2003 Volkswagen Passat 1.8L body
Thanks in advance for the help guys well; this car came into the shop vibrating when the transmission was put into drive or reverse when car is not moving and the vibration goes away when put in park or neutral , sounds like somethig is touching on the body , ...		 View

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi A6 2.7L abs module
well guy's this one's fixed but it's a long story. First thanks to mark (jake) for the info was the best. Jason we had check the wires before but a good sugestion & Trevor we have a vag con a autodigs & snap on modis the scaners are good & I like the vag con b...		 4
2002 Audi A6 2.7L Driver's
I would like to thank the 4 people that replyed for reading and offering help. No one offered a solution to our problem and the struggle goes on. What we did not know at the time was that the car got broken into by smashing the glass on that door. As we have c...		 4
1999 Cadillac Seville 4.6L #8 PCM batt fuse
Upon further inspection based on the replies, found harness casing had somewhat of a kink near the brake booster by the firewall. Opened case and found both the orange and green wires worn and shorting. Repaired wires and all is good. Thanks to all who replied...		 5
1986 Chevrolet Corvette 5.7L Poor Idle Quality, Stall, Misfire
first i want to thank everyone who replied to this post. we replaced the ecm and the car runs like a champ. oh and customer says he is going to leave car repairs and modifications to the pro's lol. jay		 11
1997 Chevrolet Pickup 5.7L master cyl.
hello gang. thanks for the quick replies, after reading everything i decided to try new calipers, bingo!! I really not sure what was the real deal with the old ones but it works. three of us read and studied reply after reply and come to the conclusion that th...		 26
2003 Chevrolet Silverado 5.3L MIL Lamp on, Throttle response
Ya gotta love this group. I had a lot of good responses, all well thought out including GMs preliminary bulletin and an offer of a training tape from David. Several mentioned the accelerator pot, the actuator, ground wires, and dirt in the throttle body. Ei... Trouble codes: P0120 (tps), P0220 (tps), P1515 (Throttle actuator position), P1516 (Throttle actuator position), P1518 (Serial data failure).		 18
2003 Chevrolet Impala 3.4L Poor Idle Quality
Thanks for the help the ECM was the problem. All test on ECM showed that tha ECM was working fine. Then I took two test lights and hooked them up to the hi and low on both coil sides of the IAC circit. then I activated the IAC with my scan tool and only one wa...		 3
2005 Chrysler Crossfire 3.2L deck lid, top
Thanks to you who replied. My research went in many directions yet every path ended up in the same spot, a dead end. I learned alot about this car, most disturbing to me was the fact that NO other scanner could effectively communicate with this car. this is d...		 2
1988 Ford Pickup 5.0L low intake vac 10"
ok guys thanks for all your inputs.eng was lean,various vac.leaks pcv orig.charcoal cann,rotted out,leakage.upper intake gskt.baked brittle.eng vavles sticking.no eng codes available,thru eec test.fuel was dead,aged,varnished.all injectors were x-tremely,crudd...		 13
1994 Ford Mustang 5.0L No Start
a big thank you to all who responded i know every car you fix seems to be something different and on this one it was the (pip) or camshaft sensor wichever you want to call it inside the distributor but the vehicle is fixed and gone...thanks to the guys who tol...		 15
2001 Ford Ranger 2.3L Whole vehicle
I have made some progress with these two trucks. I have not received the factory assistance I was hoping for. A very kind gentleman has offered to assist with the unit and is scheduled to swing by week after next. I have removed the battery box on one of th...		 4
2002 Ford Ranger 3.0L Misfire, MIL Lamp on
Well we finally found the problem. Like 4 of the 29 responses indicated, the valve seats are receding into the head. The customer has taken the vehicle and will let us know if he will repair it or trade it in. We went through all of the testing again a... Trouble codes: P0303 (Cyl. 3 misfire detected).		 29
2000 Honda Accord 3.0L Cooling System
Thanks for all the replies, I found that there was a very small amount of combustion gas in the coolant. So little that the compression and leakdown tests did not show it. Block tester worked great (thanks Norm). We replaced the engine and the radiator (fou...		 16
2004 Jeep Grand Cherokee 4.0L Cuts out
Sorry For the delay wanted To make sure it was fixed. Thanks for The replies some said ck tps and others said ck for wiring harness rubbed through on back side of engine.It was also suggested to checked my grounds which we did all of The above. well It ...		 8
2004 Kia Rio 1.6L overdrive
Thanks Robert,the kiatechinfo. website was all I needed. There was a broken wire at the 12 pin connector. It was the wire to the #2 pin in the TSS connecter. The 12 pin connector showed to be located on the right side of engine compartment but was actually loc...		 3
2001 Mercedes-Benz C320 3.2L Starting
Thank you for all the replies, This is an auction car from another shop and they decided not to put anymore money in it, so we did not install switch. It also had water damage and harness corrosion issues. We now have the correct info to do this job in the fut...		 10
2000 Mercury Sable 3.0L MIL Lamp on
Sorry, all, but the elderly lady who owns this car has decided not to invest the time/money in additional diagnosis at this time. I did replace the DPFE sensor with a Ford unit, but with still no change. I will post any additional findings as they become avail... Trouble codes: p0402 (egr flow highdpfe sensor voltage high).		 5
2001 Nissan Sentra 1.8L Poor Idle Quality, Surge, Stall
Luckily for us we had two more Sentra's come in for repairs. After looking at the engine load values and the mass air flow values we temporarily swapped an AIR FLOW sensor from another sentra just to see if it would help. It was the problem. I have never seen ...		 2
2001 Nissan Frontier 3.3L Excessive Emissions, MIL Lamp on
Thanks for the replies as they did make me review the system operation. We had smoke checked the system as one of the first steps and replaced a hose, seized solnoid, a check valve and the pressure sensor. The code returned. Fornatually the owner in the me... Trouble codes: P0440 (Gross EVAP leak).		 4
2003 Saab 9-3 2.0L Poor Idle Quality, Surge, Misfire, MIL Lamp on
Thanks to all that replied . Most that replied though must not have looked at the car model correctly because they suggested that the problem was in the ignition cassette. This car is a 2003 Saab 9-3, known to most as a SS or Sport Sedan,model code 9440, not a... Trouble codes: P2304 (Ignition coil trigger Cyl 2 circuit openshort to B), P1340 (Combustion detection signals CDM-T8 openshort), P0304 (Cylinder 4 misfire detected).		 7
1994 Volvo 850 2.3L MIL Lamp on
Thanks to all for shairing the thoughts. The knock sensors with the wiring updated from Volvo were replaced before, did not solve the problem and by replacing ECM near right fenter well took care the problem. So it was the ECM. Thank you again. Best Ravinder S... Trouble codes: 143 (1-4-3 front knock sensor signal).		 7
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next