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Prev Professional Automotive Repair Technical Discussions for January 15, 2014
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Open Help Requests for All Makes and Models
Help Request Answers
2008 Audi A6 Quattro 3.2L engine VIN: WAUDH74F38
we received this car on Monday with a running rough /noise. found all bank 1 cylinders were misfiring,there is a terrible rattling type noise from the plastic intake plenum.the noise could not be heard anywhere else on the engine.the noise would demish when re...
2000 BMW 528i 2.8L No Start, Poor Idle Quality, Stall, Misfire VIN: WBADM634XY
BMW hard start...thanks in advance to all the IATN techs that take their time to help others.. I'm looking for a direction to start here on a 2000 bmw 528i. engine will crank over good with no start.. after a little fight it will start hitting on a couple cyli... Trouble codes: 238 (also 242 243 239 codes for misfire cyl1 5 6 2)
2001 BMW X5 4.4i 4.4L lower timing cover VIN: WBAFB33541
Can anyone tell me if you can pull the lower timing cover in the truck ?? This is the motor with water cooled alternator. Thanks in advance...
1999 Buick Century Custom 3.1L engine VIN: 2G4WS52M2X
no start, no spark, changed 2 crank sensor's, ign module and the computer check power & grounds at the module & computer have rpm reading from the crank sensor's no computer codes. have inj puls and starter cranks check for contunity on all related wires, chec...
2005 Chevrolet Cobalt LT 2.2L odometer VIN: 1G1AZ54F05
Replaced bcm, odometer now reading 7 miles. unable to find where to program mileage into new bcm. In the setup menu it asks if mileage is correct, if you say no, it boots you back to the main menu. latest calibration in tech 2 using pass thru procedure to prog...
2007 Chevrolet Impala LT 3.5L high idle VIN: 2G1WT55K37
After installing new throttle body, we cannot get idle relearn to work properly. We have reprogrammed the Pcm with Gm Tech 2 (twice), & attempted the relearn multiple times (per Factory relearn procedure) & the idle just wants to hang higher than normal. Actua...
2001 Dodge Durango SLT 4.7L Transmission Relay VIN: 1B4HS28N21
The Durango was brought to the shop because it was going in to the limp in mode, it would only up shit to 3rd gear. After running some test and talking to my transmission shop I decided to replace the solenoid pack in the transmission. After replacing the sole...
2005 Dodge Magnum SXT 3.5L driveshaft VIN: 2D4FV48V35
Ok I have been doing this for a very long time and have never seen a driveshaft do what this one is doing. Frist this car came in for a valve job low compression on #1 dead miss. it's for a large used car chain. It has been shipped back to us now 3 times claim...
2006 Dodge Sprinter 3500 2.7L Transmission VIN: WDXPDG44X6
Need some help from the dodge techies please, 3500 series sprinter /winnabago motorhome, vehicle came into my shop with a no shift problem, its actually in "limp mode" probably 3rd gear. The codes above are all related to can/bus communication or a lack of. My...
1994 Ford Ranger STX 2.3L No Start VIN: 1FTCR10A6R
Hello guys, this car will not start when very cold but once you drove the car in the garage for couple of minutes, it will fire right away. Tried to find out when very cold out say -17 celcius, has fire, gas and injector signal. One thing I noticed the CTSand ...
2003 Ford Expedition Eddie Bauer 5.4L starter VIN: 1FMFU18L63
Vehicle towed in with no crank, customer replaced battery still no crank. Have good battery voltage to starter with no signal from ignition, have signal from ignition to start relay. Other things going on are no communication with scanner, relays clicking and ...
2004 Ford F-250 Super Duty Harley-Davidson Edition 6.0L No Start VIN: 1FTNW21P24
Hi guys. Truck was towed in crank no start. koeo ipr 15% noticed ipc voltage was 0. found wires to ipc were cut. Come to find out the customer cut them a year ago for a surge issue he was having. Customer also did egr delete. Can hear the injectors buzz when t... Trouble codes: P0671, P2285, P0403, P0405
2006 Ford Expedition King Ranch 5.4L airbag light VIN: 1FMFU17586
Hey guys. We do a lot of work for body shops and this is one of theirs. It was in a front end collision and, along with the body repairs, had an impact sensor replaced, drivers air bag replaced, clock spring replaced, srs module replaced and both front pretens...
2003 Honda CR-V EX 2.4L No Start VIN: JHLRD78833
Have a CRV with a no start. Has no injector pulse and no spark. I have power to the coils and injectors, ground to coil system is good. I have good communication with the ecm but have no codes have a rpm signal also. I see no data that looks abnormal either. C...
2006 Honda Pilot EX 3.5L Poor Idle Quality, MIL Lamp on VIN: 5FNYF28646
Customer complaint of Check engine light and rough idle, had code P2647 Solenoid stuck on, we did all tests according to Mitchell & replaced solenoid per local dealer recommendation. vehicle still sets code & idles rough after approximately a 8 mile test drive... Trouble codes: P2647 (V-TEC solenoid stuck on)
1994 Mazda B3000 SE 3.0L Ignition VIN: 4F4CR12UXR
Cranks but no start. No spark, fuel pressure. Cel does not illuminate for bulb check.all powers to pcm good. Powers to tps, coil and distributor good. What am i missing? all help would be greatly appreciated. Thanks.
1996 Mazda MX-6 LS 2.5L Cooling Fan VIN: 1YVGE31D0T
Customer called with a complaint of fans coming on early. With a scan tool (DS708) we determined the fans were coming on at 212 degrees (which is spec for low speed fan) but were coming on at high speed only (assuming fans weren't coming on early, just he didn...
1996 Mercedes-Benz C36 AMG 3.6L Misfire
i have a c36 amg in for a missfire problem number 3-4 coil no spark have tried new coil and swapped with knowen good one. checked power supply and earth trigger from ecu. compession tested... sent ecu to be tested.. returned no fault found.have also made up te...
1999 Mercury Cougar 2.5L No Start VIN: 1ZWFT61L3X
ok guys i know this is not normally a question i would ask on this forum but when you've lost your all data and spent hours searching the internet for what should be an easy answer i am turning to the best techs in the world for a solution. I have diagnosed th...
2005 Mini Cooper 1.6L Gauge lighting VIN: WMWRF33555
Vehicle battery was dead, owner jump started car and brought in for battery.When park lights or headlights are switched on none of the night time illumination (inside)is working. If I back probe a gry/red wire at any point all lights work. I'm not sure if we h...
1997 Mitsubishi Diamante LS 3.5L Sunroof & Door Locks VIN: 6MMAP47P2V
Hello, need a Diamante expert's advice on this one. We have 2 problems, the Sunroof and Power Locks. The power sun roof opens all by itself at times (not every time) as soon as the ignition key is turned on, and usually can be immediately re-closed using the...
2002 Mitsubishi Galant ES 3.0L Fuel pump VIN: 4A3AA46H42
Thank you for your help guys
2000 Nissan Quest GLE 3.3L Misfire VIN: 4N2XN11T2Y
This is my friends car. He came to me and it had a dead cylinder. I scanned it and it had miss fire on cylinder 1 plus the P0325 code. I ignored the knock sensor code and saw that the cap was burned out. I replaced the cap rotor and wires and it ran fine. I ga... Trouble codes: P0301 (Miss fire cylinder 1), P0302 (Miss fire cylinder 2), P0325 (Knock sensor circuit)
2002 Porsche 911 Turbo 3.6L mil light VIN: WP0AB29962
This car came in with complaint check engine light intermittently comes on, accompanied by psm and abs lights. Pulled codes and found fault P0102(hot film maf sensor,intermittent, below limit value) in dme and fault 5525(torque transmission from dme intermitte...
2003 Saturn Vue 2.2L Fuel Injectors VIN: 5GZCZ23D93
This one was thrown on my lap, and I'm starting to understand why! This 03 Saturn Vue, which we were told ran perfectly before, was given to us by another shop that diagnosed a faulty fuel pump. The fuel pump had no pressure. We swapped fuel pump and ended up...
2003 Volkswagen Jetta GL 2.0L oil pressure VIN: 3VWRK69M23
Customer states: RED oil light came on and immediately pulled over and shut down vehicle. Added 3 quarts oil and started vehicle. Drove about 5-7 miles and again Red Oil light comes on. Customer opened hood and found copious amount of oil all over right side e...
2007 Volkswagen Jetta 2.5 2.5L right rear door latch VIN: 3VWGG71KX7
First off I want to thank everyone in advance for any help.Car came in with a bad door lock actuator on right rear, replaced latch assembly, everything worked fine till we locked the door. after we locked and unlocked it the door would not open. While looking ...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2002 Audi A4 1.8L stuck in 4th gear VIN: WAULC68E92
Thanks for the replies. This one is fixed. First, the trans controller on 2002 models is under the hood in the E box so water intrusion was not a factor. I had a discussion with a tech at ZF USA and he gave me some insight into code info and lack thereof. ...
2002 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF52E82
The owner needed the car back over the holidays for his college daughter to drive. I am waiting to get the vehicle back so I can continue working on it. Thanks for the help so far. I'll make a post in the future to let you know what fixed the car. Trouble codes: P0336.
2007 Chevrolet Cobalt LS 2.2L MIL Lamp on VIN: 1G1AK55F27
Thank you to all who took the time to respond on this one. Some of you had suggested re-learning the idle or TAC module - however on this year/model there was no procedure for idle relearn and no separate TAC module, TAC control is performed in the ECM. I did ... Trouble codes: P062F.
2009 Chevrolet Traverse LTZ 3.6L Poor Fuel Economy, MIL Lamp on VIN: 1GNER33D89
This is the shop vehicle,and like a cobblers child will have to wait it's turn in the shop as we are busy right now,and IATN is prompting me to close this post.Thanks to all that posted,we have planned to investigate the fuel system and MAF closer.We also made... Trouble codes: P2099 (lean).
2002 Chrysler PT Cruiser Dream 2.4L oil pressure VIN: 3C8FY68BX2
well... never did figure out what the issue was. we put a used engine in it and its out driving around.
1992 Eagle Talon TSi 2.0L No Start VIN: 4E3CS54U8N
We pulled ecm and found it had been repaired at some point with a bad solder job, Recommended new part but customer declined & picked up the car happy & said he would replace it him self & has not been back yet. Thanks for the input, think it was the computer,...
1995 Ford Thunderbird LX 4.6L Driver's Seat VIN: 1FALP62W3S
Thanks to all who replied. I have not fixed the seat yet but this is what I have found out. The seat is not jammed, it will still move in the forward direction. I now know why I couldn't figure out how to take the motor assembly apart, it's not supposed to co...
2007 Ford Explorer Eddie Bauer 4.0L LF Wheel Speed Sensor VIN: 1FMEU74E27
Thanks to Joe! I Isolated the wiring and switched RF for LF and got it to rear its ugly head on the RF now. After doing so I checked with our parts supplier and guess what, they had only had one "Premium" hub in stock when we did this job the first time, and...
2009 Ford F-150 Platinum 5.4L transfer case VIN: 1FTPW14V39
Thanks to all who replied. We removed the driveshaft and checked the slip yoke. It did not appear to be binding, but we lubricated the splines. Next we removed the cover from the diff and inspected the spider gears. Everything was in order. We serviced the rea...
2001 Honda Accord LX 2.3L p0420 VIN: 1HGCG56411
I would like to thank everyone for the replies, we replace the converter and all is well. However we are not sure if the manufacturer will warranty the cat, they need to step up and honor their warranty. Trouble codes: P0420 (Catalyst System Efficiency Below Threshold).
2002 Kia Optima SE 2.4L balance shaft/oil pump VIN: KNAGD126X2
Thank you Cory, Ty, Raymond and Chris for the replies. Definately knew about the alignment procedure. We removed covers and ran engine with covers off, then left covers off over night. In the morning noted that the hydralic tensioner had bleed down and strange...
2006 Kia Sorento EX 3.5L Etacs
Hi I think Ive got thie one fixed.The [...] beams.Also the alternator needs to be properly grounded, the voltage drop in the system is importend too, needs to be below 200mv. The ...
2002 Lincoln Navigator 5.4L Power Window VIN: 5LMFU28R82
Thanks to everyone that took the time to reply!!! After testing and testing (checking voltages, wiring, ground, amp draws, ect.) I have come to face it... The aftermarket window motor isn't drawing enough current to keep the GEM happy. It is a Dorman window mo...
2007 Mazda CX-7 Touring 2.3L MIL Lamp on VIN: JM3ER29327
Thanks to everyone that replied to this post, tyler was the closes to the fix about not entirely closing the door on a bad maf. Even though my scanner indicated a good MAF it was off by not very much i took a stab in the dark i would say and replaced it with a... Trouble codes: P2177.
1998 Pontiac Grand Am SE 3.1L No Start VIN: 1G2NE52M2W
we got out the blow dryer and heated up the lock cyl area before trying to start ao a 40 degree morn... car started and ran. Tried to sell cust ign switch with no success. Thanks to everyone who helped confirm my diag.
2004 Saturn Ion-2 2.2L Starting VIN: 1G8AJ52F44
Well the first thing I decided to do is get the customer to bring me all the reciepts from everything ever done . Seems this has been to 2 other shops and the dealer for this problem . The dealer replaced the igntion switch and the bcm . So I havent been able ...
1994 Toyota Pickup DLX 2.4L Start stall start stall VIN: JT4RN93P9R
Thanks for the inputs guys.I did find the issue.When i was checking injector pulse at the pcm i back probed wht and wht-red wires to injectors and had pulse but no pulse at injectors.Here the wires were completely corroded away at the connector at the pcm from...
2008 Toyota RAV4 Limited 3.5L Temperature Control VIN: JTMBK31V48
Without a proper scan tool to change the "temperature difference" setting within the HVAC module, I cannot consider this fixed yet. I am on the way to having it fixed, I just need to secure a tool to change that setting. Many points were offered. It was recom...
2003 Volvo XC70 X/C 2.5L Steering VIN: YV1SZ59H03
First I want to thank all of you for the fast and helpful replies. After checking every single component I went with changing the rack, installed a new rack after flushing the system and the car works awesome. I had the feeling that was it but it never hurts t...
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