Automotive Technicians Technical Discussion and Fixes for Jan 15, 2013

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	Help Request	Answers
	2001 Audi A6 Quattro 2.8L Misfire VIN: WAUEH64BX1 Have this 2001 Audi A6 2.8 with misfire codes. (see list) appears to be the drivers bank of cylinder. checked fuel pressure. (70 psi) checked camshaft position sensor (ok) hear slight popping in intake at idle. no engine noise from chain tensioner. checked cam... Trouble codes: P1347, P0300, P0304, P0306, P0305	View
	2002 Audi Allroad Quattro 2.7L Electric Windows, Sun Roof And Closed Door Switche VIN: WA1YD64B92 NOW THE VAG COM WILL WORK AND HAS NO CODES IN CENTRAL LOCKING MODULE-BUT THE WINDOWS,SUNROOF, AND CLUSTER SHOWS DOORS OPEN.MODULE WAS VERSION CODED WITH FACTORY SETTINGS AND TRIED OTHER SETTINS-NO HELP.FOUND AT E40 DRIVERS WINDOW SWITCH-NO POWER AT PIN 1(.35 r...	View
	2005 Audi A6 Quattro 3.2L Steering VIN: WAUDG74F35 customer brought car in complaining of steering too hard. Not to the point of not working, but hard to steer. checked fluid level. full but dark. check tire pressures and adjusted to 35 psi. still steers hard. thought problem would be the power steering pump. ...	View
	1998 BMW 740iL 4.4L Abs VIN: WBAGJ8322W 98' BMW 740IL problem is intermittently the abs dsc light turns on and the brake apply and stayed applied. Has 2 dtcs 51 Brake pressure switch and 68 brake pedal switch plausibility. If you clear the codes the 51 comes first then the 68.I have had the problem ...	View
	2004 BMW 330Ci 3.0L rear view mirror VIN: WBABW534X4 Original mirror turned black and replacement did the same thing immediately! Pin out showed voltage on 2 wires that are supposed to be no power. Before I go cutting these wires I wondered if anyone has seen this before. Thanks in advance.	View
	2006 BMW X5 4.4i 4.4L Misfire, MIL Lamp on VIN: 5UXFB53506 car misfires when first cold in the morning but clears out, does not smoke at all. replaced both crankcase vent valves and updated hoses, installed new plugs an reprogrammed pcm. car has misfires on all cylinders, mostly on cold mornings. read all tsb about mo... Trouble codes: P0300, P0303, P0306, P0305, P0304, P0308	View
	2008 BMW 328xi 3.0L trunk latch release VIN: WBAWV535X8 customer came in with the trunk release not working,found remote or switch inside not opening trunk have to use key to open trunk.tested for power and ground at latch during remote operation and had ground but no power,activated latch with power probe and it f...	View
	2004 Buick Century Custom 3.1L Steering VIN: 2G4WS52J54 Has a hiss noise comming from the press. Hose. Harder to turn left than the right. Power steering flued has some flakes in it. Did not have noise before replasing the steering rack. Any one can help dont know what the next step is	View
	2008 Buick Enclave CXL 3.6L Battery VIN: 5GAER23718 Since this car was new, after driving in a hard rain the battery will drain overnight. Dealer has had windshield replaced 2 times due to water leaks. Car came to me with a dead battery. I charged the battery, and tested the battery and charging system, all g...	View
	1996 Chevrolet Blazer 4.3L charging sstem VIN: 1GNDT13W6T Customer disconnected battery to clear codes with hopes of getting the vehicle inspected. When reconnecting battery he shorted the Positive terminal against the alternator case. Vehicle will now not charge. Owner says that he had 2 different parts stores test...	View
	2000 Chevrolet Express 3500 LS 5.7L MIL Lamp on VIN: 1GBJG31R7Y Hello. This ones beating me up. I have a P0171 bank one system lean. Smoke test on intake was ok. Fuel pressure at 60psi and it will hold there at wide open throttle. Checked cat with a bore scope and both sides are clean, no obvious restriction. purge valve o... Trouble codes: P0171 (System lean bank one)	View
	2000 Chevrolet Corvette 5.7L Hesitation, Cuts out VIN: 1G1YY22G1Y Hello everyone. I have a corvette here that is acting very intermittantly strange. Vehicle came in about 6 months ago with a steering column lockout message and would die after reaching 2 mph. I installed a LMC5 module from compliance parts in southern califor...	View
	2001 Chevrolet Silverado 2500 HD 6.6L Poor Idle Quality VIN: 1GCHK23141 This symptom started about a week ago when he 1st noticed an extended crank to start problem. Takes between 10-15 sec, sometimes longer. Seems to help/start quicker if accel pedal is held 1/2 down during crank. Starts/runs fine cold! Its when warm it has ext... Trouble codes: P0093 (fuel systm leak although only occurred once)	View
	2002 Chevrolet Tahoe LS 5.3L 4wd VIN: 1GNEK13Z32 Truck came in with customer complaning of binding in 4wd front diff had no fluid in it and was totally burned up. Replaced with a used unit and still had the same issue.pulls left only in 4wd will only act up in 4wd the used unit was pullled and another one in...	View
	2004 Chevrolet Classic LS 2.2L No Start VIN: 1G1ND52F84 This vehicle is a "cranks,but no start"at varying times.there is no set pattern.it will go for days without a problem,but out of nowhere the customer will come back to the car after being in a store for 15 mins.to 1/2 hour,and it will just crank and not fire u...	View
	1999 Dodge Grand Caravan 3.0L Engine VIN: 2B4GP2433X This is a high mileage but very well maintained van. Oil pressure is great on cold start, but starts dropping soon after. When fully warm, pressure at idle is 5-9 psi, light comes on. Have a mechanical gauge screwed on to sender port. No lifter noise or bearin...	View
	2004 Dodge Ram 2500 ST 5.7L 4 cyliders dead VIN: 3D7KU28D94 Hello to all again. We get the wierd one of the week award. A body shop we work with brought us this truck he was trying to help a car lot with. It has had the engine changed out from another truck. It runs real bad and on only 4 cylinders. Compresion is 150 a...	View
	2004 Dodge Dakota Sport 4.7L odo says no bus VIN: 1D7HG38N34 Odo displays ( NO BUS ) 6 gauge dash none of the gauges work. Starts and runs well. Checked Power distribution battery lead in took apart cleaned and sealed with dielectric grease checked and cleaned all grounds both fender grounds and all firewall grounds all...	View
	1996 Ford E-350 Econoline 7.3L No Start VIN: 1FDKE30F5T Vehicle towed in to shop. first time customer vehicle has crank no start. customer claims vehicle ran beautiful. he shut truck off and it would not start next day. upon inspection vehicle was 6 quarts of oil low. oil level now correct. Someone recently has ins...	View
	1997 Ford F-150 5.4L Surge VIN: 1FTEF18LXV owner just got pu truck so don't have any history, on start up it will rev up to 2000 or more then will idle down to 500 act like it will stop and rev up again,mil not on,stays in open loop,oxy sensors all at ooo changed h2o11 got some switching not like it sh... Trouble codes: P0401, P0155	View
	2000 Ford Mustang 3.8L MIL Lamp on VIN: 1FAFP4042Y Not much info on what this car does (ESL), all I know for sure is the oxygen sensors, upstream, are reading 1.666 volts. KOEO, KOER, doesnt matter, will not budge. I have scoured many sources and cannot find this occurence anywhere. If you unplug them, the ECM... Trouble codes: P1132, P1152	View
	2002 Ford Explorer XLT 4.0L No Start, Stall VIN: 1FMZU73E42 hello techs this veh. cranks no start,no spark 1-coilpack 2-crank sensors , the second crank sensor engine started ran new for ten minutes stalled no start no spark .ign. feed is there for coil pack oem parts.any help appreciated tia terry	View
	2002 Ford F-350 Super Duty XL 7.3L Cuts out, Stall VIN: 1FDSF34F52 Stalls hot or cold at idle when blowing the horn or activating the washer pump for the wipers. Checked/cleaned all grounds and ran multiple new grounds. Battery negative to battery negative, battery to body, body to washer pump- right front headlight/park/turn...	View
	2003 Ford F-150 Lariat 5.4L Speedometer VIN: 2FTRX18L13 Customers concern is that the speedometer bounces around. This vehicle was previously serviced at a different shop for the same concern. They had replaced the PCM, Instrument Cluster, VSS at the differential and the OSS located on the transmission. The concern...	View
	2005 Ford Crown Victoria 4.6L Fuel System VIN: 2FAHP71W45 Every time car is filled with fuel cap off and car running engine dies and is very hard to restart, after it starts car runs fine. Not sure if it does it with engine off the officer said it would. I've not check to see it for my self Is there something I'm ov...	View
	2006 Ford Taurus SEL 3.0L RPM Gauge VIN: 1FAFP56U36 Thanks In Advance. After We replaced PCM car seemed fine. Release car to the customer Friday and Customer Cslled Monday and said it was still cutting Off And Not Cranking until she waits around 5-10 Min. She Also Stated RPM Gauges would act up and thats when s...	View
	2003 GMC Envoy XL SLT 4.2L No Start, Hesitation, Misfire VIN: 1GKDT13S63 I have a 2003 envoy thats kicking my ass it came in with skip cyl. 3 hade no compression we got a used engine. after we installed the used engine it ran well on start up then it begain skiping no compression in cyl. 4 and 6 so we replace that engine and the ne...	View
	2006 GMC Sierra 1500 SLT 5.3L Front Differential VIN: 2GTEK13T66 We have this 2006 GMC Sierra 1500 4x4 that was recently towed to us with the discription of bad noise at front. Unfortunatly for us it drives perfect with no noise at all. Began to wonder why customer towed truck. Gave up on it and installed additive in trans....	View
	2000 Honda Accord EX 3.0L Misfire VIN: 1HGCG1650Y Cold the vehical will missfire blue smoke out the tail pipe and after 10sec. Clear up and run fine only at a cold start. No codes cheaked fule pressure 45-55psi no drop after key off like a injector stuck open holds 45psi and cheaking engine timming	View
	2003 Honda Pilot EX 3.5L Vtm VIN: 2HKYF18583 Hi guys, I have this 2003 Honda Pilot with a VTM DTC 21 and 33 which I can't seem to get rid of. Car came in with VTM lite on, scanned, DTC 21 LF wheel speed sensor, check sensor at connector, producing flucuating AC voltage, checks Ok. Checked ABS wheel spee...	View
	2004 Honda Accord EX 2.4L Cv Joint/Shafts VIN: 1HGCM72584 This vehicle has a vibration ONLY under acceleration at speeds over 45-50 mph. When coasting there is no kind of vibration.I have read where this has been a problem on this vehicle, even after axles have been replaced. There seems to be a problem with many rep...	View
	2006 Kia Optima LX 2.7L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: KNAGD12846 Hi, It seems I have stumbled on to a project. When I first acquired the car,someone had been working on it. Found Bank One intake cam and exhaust cam were out of time,solved cam alignment. Compression seemed ok. Timing belt was all in time. After correcting t... Trouble codes: P0058, P0170	View
	2009 Kia Spectra SX 2.0L Programming VIN: KNAFE22299 This Kia TPMS light is giving me fits. This Spectra has 2 lights, a tread light which is off and a TPMS light which is on. Originally had code C1314 LR sensor RF signal. Using my Ateq VT55 tool with OBD2 connector I reprogrammed the sensors into the module, al...	View
	2002 Land Rover Discovery Series II SD 4.0L No Start VIN: SALTL15482 Hello out there, This Rover ran for a couple of days after engine was replaced, and then quit. No spark or fuel pump. We get this code for the immobilizer coding(P1673) after a long crank, and sometimes a code for the security system, (P1000). Nothing in Allda... Trouble codes: P1673 (Immobilizer not coded)	View
	2004 Mazda 6 i 2.3L Poor Idle Quality, Hesitation, Surge I have not gotten to far into this as I started at the end of day. The car stalled on the customer and was towed in. The mil is on with a P0340 code. I checked the oil level (as I would first with a VVT engine), and it was 3 quarts low. added oil and it starte... Trouble codes: P0340	View
	2008 Mercedes-Benz C350 Sport 3.5L eis VIN: WDDGF56X08 This vehicle came in as a no start/no crank. it was determined that the electronic ignition switch (EIS) has failed. I have gotten a OEM replacement and key, and have removed the old one. The question is I can not find any replacement procedure and I don't wan...	View
	2003 Mini Cooper 1.6L sunroff- radio- etc... VIN: WMWRC33453 several systems are offline. Air Bag, Multi function steering wheel,On board module, Navigation,Park assist,Radio, Rain Sensor, Sun Roof, Automatic Interval Control. Not sure if all are applicable, but sun roof and radio work very intermittently, if at all. Ha...	View
	1998 Toyota Tacoma Limited 3.4L Rear axle seals VIN: 4TAWN74N7W Ok everyone I must be brain dead today or something. I can not for the life of me figure out how to get the bearings off the axle in this thing. This truck has the locking rear end and abs. I have the tone wheel for the abs off but cant get any of my press ada...	View
	2002 Toyota Tundra SR5 4.7L Will NOT set monitor VIN: 5TBRT34172 Have replaced all 4 O2s with dealer units, followed TSB re: drive cycle for monitors. Sets O2 heater and cat monitors, won't set EVAP and O2. Now, it also "forgets" the ones it has at times. Checked grounds, voltages to CPU, swapped in known good MAF and CPU, ...	View
	1999 Volkswagen Jetta GLS 2.0L R/F door light VIN: 3VWSC29M5X Initial problem- Remote door locking inop all doors. R/f door light inop with door open. No ground to brown/ white wire at door light. Light operates if fed an outside ground. Leaning towards the latch module but cannot find the correct wiring diagram on Allda...	View
	2006 Volkswagen Beetle 2.5 2.5L convertable top VIN: 3VWRF31Y96 hay i need some help here on this happy vw beetle the convertable top isnt working. fluid leval is ok. we have the vdc vag tool codes are 02000 switch is [...]. aldata dosnt give any discription on convertable top codes. im checking data it gives the...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 Audi A8 Quattro L 4.2L cilynder head VIN: WAUZZZ4E84 Well,fellow techs i decided to leave this car alone...I am pretty sure that rattling noise comes from camshaft chain tensioner.Damn thing is expensive almost like parts for space shutlle - 1040€ (cca $1550) for two pieces!Since this is my own car and i have dr...	6
	2003 BMW 530i 3.0L Idle VIN: WBADT63473 THanks for all the help we replaced the iac and that did did not help, we have vac from valve cover and dipstick We washed the engine down after repairs so I think we got water in a connector. Most likely not, but customer needed vehicle and will see what he d...	6
	2006 Chevrolet Silverado 2500 HD LT 6.6L intake air heater VIN: 1GCHK29D56 Well thanks for all the input. We came to the conclusion that it will be beter to send this one to the dealer. It is probly the glow plug module at fault and with such low milage maby he can get some under warranty. Will be searching for a tech 2 real soon.	4
	2002 Chrysler Town & Country EL 3.8L Psd inop VIN: 2C8GT44L32 Thank you very much for your help. Track wiring was the problem with this vehicle. It was intermittent on the passenger side. Customer has had vehicle back and is satisfied. thanks again Trouble codes: 1H, RH.	8
	2003 Dodge Ram 2500 Van 5.9L Cuts out, Misfire, MIL Lamp on i am closing this as the customer is not willing to pay anything for repairs or diag at this point the shop has paid for all the parts with out the cust approval, this i was unaware of. i still can not get past the drop in fuel pressure at the time of failure,... Trouble codes: P0301.	31
	2007 Dodge Sprinter 3500 3.0L Reman. P/S Pump VIN: WD0PF44547 Well this one was not too much of a mystery. We we're reluctant to condem the rack & pinion. John from Pennsylvania had a great idea , to put some fluid on a clean white surface and look for tiny metal flakes. Bill from Texas & Lazo from Florida we're both rig...	13
	1999 Ford Taurus SE 3.0L battery VIN: 1FAFP53S8X thanks for the replies, I disconnected the GEM , reconnected it , retested the system with an fuse buddy and amp probe, the amps came down to .oo4 after sitting for 20 minutes, gave it back to the customer and when calling back, the car ahs been working fine, ...	16
	2008 Ford F-350 Super Duty XL 6.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on THANKS FOR ALL YOUR HELP SPOT ON ! FIXED IT THE NEXT MORNING ! CHANGED 10 COILS AND 10 PLUGS ALL OEM OF COURSE. 2 RIGHT REAR HOLES WERE FULL OF RAIN WATER AS WELL. WITH OUR SMART TAC... 4 DIFFERENT CYLDS HAD NO KV OR RPM. ALSO MODIS WAS COUNTING NEGATIV... Trouble codes: P0351 (Ignition coil a primary/seconday circuit).	6
	2003 GMC Yukon SLE 5.3L Coolant Loss VIN: 1GKEK13T43 they were the defective heads we used a block sealer to buy the customer some time to aford an engine replacement the motor has 178,000 mile and has had coolant in the oil for a long time	17
	2007 GMC Yukon SLT 5.3L MIL Lamp on VIN: 1GKFK13047 THANKS TO ALL THAT REPLIED. THE FIX WAS TO RESET THE FUEL ALCOHOL CONTENT LEARNED VALUE. IT WAS READING 50%. AFTER RESET IT READ 3% FUEL TRIMS CAME RIGHT DOWN TO WHERE THE ARE EXPECTED TO BE AND THE EVAP CODES WAS FIXED WHEN WE CLEANED THE VENT SYSTEM. Trouble codes: P0172 (Too rich bank one), P0175 (Too rich bank two), P0446 (Evap vent problem), P2A04.	15
	1993 Mercedes-Benz 190E 2.3 2.3L No Start VIN: WDBDA28D7P Hi. Thanks for all the help. Turns out I had turned the screw in to rich and it was running fine at the time, but when I turned it off and it cooled I suppose, it wouldn't start because of to much fuel. Pulled the plugs and dried them out, then following the i...	9
	2001 Mercedes-Benz E320 3.2L Won't shift past 3rd gear VIN: WDBJF65J11 According to most suggestions, I replaced the conductor plate. Unfortunately the problem still happening. Customer decided not to invest anymore at this time. Will be back when symptoms becomes more consistent or when there's a fault/hard failure. Thanks to al...	16
	1998 Mercury Mountaineer 4.0L Timing Chain Tensioner VIN: 4M2ZU52E3W Thank You all for your responses, they were all helpful but I still cannot pinpoint the root cause of why the tensioner keeps breaking, I've checked alignment, lubrication, cranked engine over without the cover and everything looks correct. Again thank you all...	14
	1979 MG MGB MK IV 1.8L No Start, Stall VIN: GHN5UJ4501 Wow! there's still a lot of MG mechanics out there! Majority of replies were to replace stromberg with a Weber. I installed hand choke and choke was intermittent.Sometimes it would start right up,other times would not start at all.I examined choke body and c...	29
	2008 Mini Cooper 1.6L gauges, electrical VIN: WMWML33588 Thank you for the replies. seems like these cars have some issues with electrical problems. After checking further, I found that the radio was the problem. Removed fuse for the radio and dash came back to life, as well as the heating system and all other syste...	10
	1999 Oldsmobile Intrigue GL 3.8L No Start VIN: 1G3WS52K8X WELL THIS ONE IS A FIX.. I TOOK A GAMBLE AND REMOVED TIMING COVER TO FIND THE KEYWAY SPUN ABOUT 40 DEGREES. INSTALLED NEW GEARS, KEYWAY, CHAIN AND DAMPER AND NOW IT RUNS PERFECT. I KNOW BETTER NOW TO JUST PULL THE COVER IF I SUSPECT TIMING ISSUE. I PREVIOUSLY ...	30
	1997 Toyota 4Runner SR5 3.4L Excessive Emissions VIN: JT3HN86R7V The fix was the Front O2 sensor. When I got around to looking at it on the scope I had 400mv to 600mv with a rise time of about 1.5 sec. A new sensor took me to 200mv to 850mv with a rise time of 10ms. This brought the NoX down to 38PPM at 15mph and 8PPm at 25...	16
	2005 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWRA69M15 This car is finally fixed. The problem was indeed the MAF. Pretty bad when you get two sensors from VW and they are both bad. That's where I was having my problems but Peter from Lesotho helped me go back to my Ford diagnostics. I wasn't sure if those anti... Trouble codes: P0171.	19
	2005 Volkswagen Passat GLS 2.0L Hesitation VIN: WVWCE63B85 Thanks for the help I checked the items that everyone suspected and came up with no fix. The customer took the car to the dealer and they told him that this was a characteristic of this vehicle and there is simply nothing you can do to fix it. Now I dont know ...	5
	2005 Volkswagen Beetle GLS 2.0L 4th 5th 6th Gear VIN: 3VWCK31C25 The problem as many suggested was the valve body. These seem to have a real problem as I researched it. Replaced Valve Body and all is well.	9

(Also Available: All, Asian, Chrysler, European, Ford, GM.)