Automotive Technicians Technical Discussion and Fixes for Sep 6, 2012

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	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...	View
	2007 Audi Q7 4.2L Engine VIN: 957346T1U7 Thanks to all for the help. This vehicle was just sold by our u.c.d. Customer complained of a noise at idle. Found an extremely loud high pitch noise at idle when the engine is fully hot. Though the noise is super loud, it is very hard to pinpoint. I checked u...	View
	1999 BMW 528i 2.8L radio VIN: WBADP6340X We are loosing 12V to glove box fuses 37 to 45 when shifted into any gear, forward or reverse. Looses 12V at violet wire at ignition switch also when shifted into any gear. Is this the ignition switch failure or something in the shift sensors?	View
	2008 BMW 535i 3.0L 4-5 Shift VIN: WBANW13518 Car was towed in-car lot said it was stuck in 1st gear, tow truck driver said he could not get transmission to stay in gear-it would jump into park?-when i first road testing it the trans shifted fine with no error messages-checked faults with autologic-4f8a,4...	View
	1994 Chevrolet Camaro Z28 5.7L engine VIN: 2G1FP22P2R Hello: Am installing a rebuilt engine. Engine fired up yesterday and ran @ idle to about 2000 rpm until we noticed (has open exhaust) starter still engaged so shut off. Replacement starter installed today and no start, no spark, no injector pulse, and no comm...	View
	2001 Chevrolet Impala LS 3.8L no start/no crank VIN: 2G1WH55K51 We have an 01 impala in here that has an intermitent no start/no crank problem after replacing BCM for a battery drain issue. The new BCM fixed the problem but now has the intermitent no start/no crank. Security light does not flash when problem occurs. starts...	View
	2005 Chevrolet Aveo LS 1.6L engine VIN: KL1TD52635 Over heated coolant loss replace t-stat housing ( plastic cracked ), came back 2 weeks over heating refilled found radiator not getting warm ( the upper hose and radiator and the radiator inlet gets hot not the radiator nor the lower hose at radiator but at th...	View
	2006 Chevrolet HHR LT 2.4L 1-2 shift Vehicle has intermittent "T/C off" warning light (indicating Traction control problem/system disabled) During this time harsh 1-2 shift and harsh engagement shifting into drive from neutral. Other upshifts are OK. Next drive cycle will normally have no light a...	View
	2000 Chrysler 300M 3.5L engine VIN: 2C3HE66G4Y Car towed in stalled on the road. Owner claims that it was running fine, stalled and would not restart. Had code for multiple misfires. Looked like original spark plugs. Checked compression and found none on 5 cylinders, 70 on one. Suspected timing belt. To...	View
	2005 Chrysler PT Cruiser Classic 2.4L shifting VIN: 3C4FY48B25 I've been working on this car on and off for 4 weeks now... The original concern was for code p0750 (L/R solenoid fault) which set intermittently. Transmission fluid is clean and it only has 34k. I checked and rechecked the wiring, replaced the solenoid. Repla...	View
	1996 Dodge Stratus ES 2.5L MIL Lamp on VIN: 1B3EJ56H8T I'm trying to get this car to pass ca. smog test. after repl. computor and before programing I got reid of po300. After programing code came back. The real problem I'm haveing is I cant get egr;catalas;evap monitors to run.I have driven this car over [...].... Trouble codes: P0300	View
	2002 Dodge Ram 1500 SLT 4.7L No Start VIN: 1D7HA18N92 thanks in advance for any help this 2002 ram 1500 with a 4.7 came in no start has a p0340 mitchell recommends replacing crank and cam sensors together so i did after replacing the sensors truck ran for 6 seconds and died still have the cam sensor code and show... Trouble codes: P0340	View
	1987 Ford F800 7.0L Backfire VIN: 1FDPF82K0H Truck will backfire on decel,very loud. adjusted timing,it had exhaust leak at right manifold, repaired leak, backfire still present just not as often. Any thoughts??	View
	1997 Ford E-350 Econoline Club Wagon XLT 6.8L long crank time VIN: 1FBJS31S1V when cold van cranks for about 10sec before turing over and it is and interminitant situation where most times when it is cold it turns over. when veichle has long crank time and finally starts there is a white smoke out of exhaust. i have done a fuel pressure...	View
	1997 Ford Explorer Eddie Bauer 4.0L timing chain help VIN: 1FMDU34E2V The timing chain installation r&r engine. is there any easier way? tricks??	View
	2000 Ford Excursion XLT 7.3L speed sensor VIN: 1FMSU41F9Y here ford guys have a 2000 excursion 7.3 wathed on scanner output shaft speed reading very erratic jumping around 0 RPM to up to 17000 RPM replaced sensor have same problem.unplugged sensor,drove,but sensor still reads but not with erratic reading. look more l...	View
	2002 Ford Windstar SE 3.8L rear HVAC controls VIN: 2FMZA524X2 This Winstar van with front and rear a/c & heat. If you control the rear unit from the front controls it works perfectly. When we switch it to rear passenger control it defaults to heat coming from the bottom and blower speed max. No passenger control at all. ...	View
	2003 Ford Focus ZX5 2.0L Stall hello all. not sure what this cars problem is but owner says it just dies i did a tune up cleaned the maf sensor car ran great in test drive till owner took it home call to say it died at the turn in to her drive way will have this back at 8am friday. Help ple...	View
	2004 Ford F-150 Lariat 5.4L torque converter VIN: 1FTPW12524 Hello iatn members, I got my boss truck that initially the drive shaft center bracket (support on the middle) broke off, it was replaced and know when you drive it, it gives code p1744 tcc system.my knowledge its limited when it comes to transmission.I can see...	View
	2005 Ford Focus ZX3 2.0L Poor Idle Quality, MIL Lamp on VIN: 3FAFP31N65 was stalling but seems to be better after egr install, sometimes the idle is a little flucuating but not bad most of the time. long trim 25 at idle but looks good off idle down around 5 or below Trouble codes: P0171	View
	2006 Ford F-350 Super Duty XLT 6.0L No Start VIN: 1FTWW33P06 Thanks in advance to all you 6.0 guys. This truck will not start, has no codes. I know its a high pressure oil problem. When cranking & watching ICP on Snap-on Solus scanner, ICP is only reaching about 360-370 psi. I know I need to air check the system but I a...	View
	1998 Honda Accord LX 2.3L No Start VIN: 1HGCG564XW no start will run on carb cleaner fuel press good injectors good tested off car have power to them with noid light thanks for any help also swapped out efi main relay and distributor still no change	View
	2004 Hyundai Santa Fe GLS 2.7L radiator VIN: KM8SC73D54 Good morning techs; I have a Sante Fe that needs a radiator and all the information systems have a labor of 2-2.5 hrs. The description on Mitchell, Alldata and the Hyundai web site shows upper radiator retainers--THAT I DON'T have. My baby has an upper core su...	View
	2005 Land Rover LR3 SE 4.4L Trans Limp mode VIN: SALAD25485 Alright Rover guys i need some help here. This LR3 came in a couple weeks ago with the customer complaint "Vehicle goes into limp mode and i have to cycle the key to get it moving again." Same complaint this time after i replaced the brake light switch(which i...	View
	1965 Lincoln Continental 7.0L Power window Relay VIN: 5Y82N43705 I have the wiring diagrams for this vehicle but no parts locations. Does anyone know where the power window main relay is located? I've looked in the trunk and right kick panel but no luck yet. Thanks Paul	View
	2001 Mazda MPV DX 2.5L igntion lock VIN: JM3LW28YX1 Ignition lock cylinder solenoid will not release. it looks like issue is instrument cluster issue. Are there any mazda techs that can help.	View
	2002 Mercury Sable GS 3.0L Transmission VIN: 1MEFM50UX2 Transmission rebuilder claims poor shift quality result of bad pcm. Shop that sublet trans work replaced pcm. I programmed pcm to vehicle. Still shifted poorly, no change, rebuilder claims I am not programming pcm correctly. The door states "R" final drive, wh...	View
	1997 Nissan Altima GLE 2.4L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1N4BU31D3V Hello techs. There is only one way to start this request. HELP!!! I have a nissan eating me alive. It started out as a simple oil leak repair. Found the timing cover leaking so we sold a timing chain and cover job. I got it all back together and the car ran te...	View
	1974 Pontiac Firebird Trans Am 6.6L tach VIN: 2V87Y4N116 This is the boss's car. Just restored our other body shop. They replaced the harnes do not have old one. I removed the IC check for signal for tach did not see any. The mitchell does not have the wireing harness for Trans Am(with tach). How does the tach get i...	View
	2001 Pontiac Firebird 3.8L vtd VIN: 2G2FS22KX1 morning all.vehicle came in with security light on soild.i can not comunicate with bcm using the tech2.all powers,grounds are good.i can get into all other modules.the car does start and run fine.i replaced the bcm w/gm unit,now the security light flashes,trie...	View
	1987 Porsche 944 S 2.5L oil level light VIN: WP0AA0947H vehicle came in with the low oil level light on,checked the oil level-was full.checked voltage to the oil level sensor{single wire sensor}we had approx. 1 volt less than battery voltage,grounding the wire would make the light go out.thought the level sensor wa...	View
	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...	View
	2003 Saab 9-5 Arc 3.0L blower motor VIN: YS3ED49Z93 customer states that it still is running on occassion. it is so unpredictable so trouble shooting is almost impossible. It doen't seem to matter if the AC is being used or not, so maybe defrosting the Evap core??? Any help is apprieciated	View
	2003 Saab 9-5 Linear 2.3L Alternator VIN: YS3EB49E43 Vehicle was towed in after dying on road, due to a dead battery. Prior to stalling, customer describes symptoms of vehicle not charging. Tow truck driver reported jumping vehicle and watching it start charging then voltage steadily dropped. Upon arrival here, ...	View
	2008 Smart Fortwo Passion Cabrio 1.0L MIL Lamp on VIN: WMEEK31X68 Hey everyone i got a real pain in the neck problem with this not so smart car.car came in not accelerating with a check engine light with a p2158 hard code.i changed the vss and the trans.pressure switch.i also checked the wires from sensors back to the comput... Trouble codes: P2158 (Vehicle speed sensor b)	View
	2005 Subaru Outback R 3.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 4S4BL84C15 This subaru will loose throttle response and set p2101. When this happens, the ecm stops grounding the electronic throttle control relay, which causes the relay to open and disrupts power to the ecm for the throttle control. The circuit in question is the red/... Trouble codes: P2101 (Throttle control motor performance)	View
	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...	View
	2001 Volkswagen Jetta TDI 1.9L Mechanical VIN: 3VWSP29M01 One of the customers complaint is that they hear a vacuum noise or air pressure leak sound (like a air hose) under acceleration at speed above 35mph. We did verify the complaint while driving the vehicle but can not reproduce the sound while on the hoist. We d...	View
	2003 Volkswagen Beetle GL 2.0L MIL Lamp on VIN: 3VWBK21C33 Hello VW Techs This car came in with code PO 456, we did the fuel leak detection pump test with the VAG COM and it show that it had a small leak in the fuel evap system, we perform the test on the fuel detection pump and found a leak in fuel leak detection pum... Trouble codes: P00, 456 (Small leak detected in fuel evap system)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1997 Audi A8 Quattro 4.2L cooling fan VIN: WAUBG84D4V The problem with this vehicle was the ignition switch. When the key was turned from off position to run it stopped in the appropriate spot for fan functions to be normal when diagnosing. If you started the vehicle and release key to run position it didn't retu...	4
	1987 Chevrolet R10 Custom Deluxe 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCER14H6H I want to thank everybody for all your advice and efforts,we get very few of these t-body injection systems with problems and the time between each one seems to cause us to forget everything we learned about them. Fuel pressure is critical on these and we did ...	29
	1998 Chevrolet S10 LS 2.2L pump VIN: 1GCCS1947W the truck is gone and hasent come back so far i installed a new complete pump and a new converter transtar has just come out with a new converter to corect hub install hight seems to work. thanks to all that replied.everyone had great sug. but the install high...	7
	2002 Chevrolet S10 4.3L Misfire VIN: 1GCDT19W62 Well this is kind of an embarassing fix, but one that will hopefully help someone in the future. I didn't know these had a CKP relearn to them! I did the AC cap and rotor which did nothing, then performed a heavy duty upper intake clean before I read the rep... Trouble codes: P0301 (p0304-), P0304 (p0300-), P0300.	21
	2002 Chevrolet Impala LS 3.8L Suspension VIN: 2G1WH55K62 Well, I thought we nailed it when one of my techs found the driver's front bushing between the cradle and body MISSING. Replaced with OE...still has the noise. Now the real unfortunate part, one I feel terrible about because of the outpouring of help you all...	30
	2003 Chevrolet Silverado 3500 6.6L neutral light VIN: 1GCJK39183 Hey all...it is fixed. I put a used encoder motor on it per the owner's request...he had one at his shop off of another truck...all lights work. Thanks for the help.	4
	2003 Chevrolet Silverado 3500 LS 6.6L Transmission No Shift VIN: 1GBJK39123 Well, here's how it turned out. Mike and John from BC suggested to definitely verify the circuit/wiring and pin fit at TCM were good. This I had done, going so far as to piggyback redundant wires between the TCM and Solenoid A. Avinash recommended replacing So...	5
	2003 Chevrolet Silverado 3500 8.1L Fuel Gauge VIN: 1GBJK34G33 Sorry about the delay on closing this help request. i wanted to make sure it is fixed. It was the fuel pump assembly that I got from CQ. They always treat me good there. The sending unit float was inverted I ended up digging the old unit out of the trash to ch...	10
	2006 Chrysler Sebring Touring 2.7L abs VIN: 1C3EL56R76 I wish I could say that I found the smoking gun but nun the less I'm calling this one fixed. I pulled the car in tuesday morning to scope the the bus becauase that was the one thing I didn't try and the the ABS and brake light were off and I was communicateing...	3
	2009 Chrysler PT Cruiser Touring 2.4L No Overdrive VIN: 3A8FY58919 THANKS TO ALL WHO TOOK THE TIME OUT TO REPLY, AFTER I DOUBLE CHECKING WE REALIZE THAT THE WHINING NOISE WAS COMING FROM A BAD WHEEL BEARING ON THE LEFT FRONT. BUT THE SHIFTING TO OVER DRIVE WAS SOLVE AFTER WE REPLACE THE OUTPUT SHAFT SPEED SENSOR. THANKS...	7
	1996 Ford F-250 XL 7.3L Transmission/ Map sensor VIN: 1FTHX26F6T I think the issues is fixed. With intermittent as this was i replaced cam sensor, due to that the computer can only read trans slip between cam and rear diff sensor. It is cheaper then trans rebuild. The truck has been gone a week so i will keep fingers cross...	15
	1998 Ford Explorer Eddie Bauer 4.0L Converter, O.D. VIN: 1FMZU34E1W After checking the valve body gaskets and cleaning the valve body and not finding any problems and checking the pressures and they checked within specs. I pulled the trans. and replaced the converter. After this I still had the same problem. Not sure where to ...	5
	2003 Ford Windstar LX 3.8L rediness monitors VIN: 2FMZA51483 we replaced the pcm and reflashed just like the original and all monitors work now.i dont know what was wrong with the old pcm but all works now and went thru emissions fine	7
	2005 GMC Envoy XUV SLT 5.3L Misfire VIN: 1GKES12M75 Well this one is fixed. We put everything back together(Cam bearings,Cam,New lifters,). Still had a cylinder misfire on 4. Noticed a ground signal drop on #4 DOD solenoid at times. Repaired short and its fixed. This was a very expensive learning lesson on my p... Trouble codes: P0304 (Misfire 4).	6
	2007 GMC Yukon XL 1500 Denali 6.2L Liftgate Module VIN: 1GKFK66807 thank yuo all for your help.tech support finally called us back several hours later.i feel stupid but learned a lot on the lift gate system.we got frustrated waiting and felt the latch didnt feel just right.put a new latch in it,bingo! fixed.this was the first...	9
	2006 Hyundai Sonata GLS 2.4L Alarm System VIN: 5NPEU46C46 Customer changed their story, shimming up the hood switch did fix it. On a Hyundai, intermittent alarm is usually the the hood switch, customer drives in with horn and lights flashing it's the driver's door latch. Yes, the alarm won't disable the car.	5
	2003 Jaguar X-Type 3.0L Master Cyl. VIN: SAJEA51C13 Finally got a pressure bleeder and car is done. Pedal feels normal and does not fade. Thanks to all who replied.	4
	2002 Lincoln LS 3.9L Stall VIN: 1LNHM87A62 checked all things and found no problem. customer took car and will bring back when it starts to do it more often	14
	2002 Mazda 626 LX 2.0L Vibration VIN: 1YVGF22C92 Thanks Y'all !! I got some great tips. The one about using a jack under either end to check the mounts was very helpful. The balancer looks real good. Tried to check torque converter bolts had to remove starter! It was worse when A/C engaged, so took belt of...	11
	2009 Mazda 5 Touring 2.3L battery VIN: JM1CR29329 First of all thank you to those of you who did not just shoot from the hip, but took the time to actually read my problem and put some thought into helping me get this problem resolved. Being that it was the room fuse circuit that had the draw the alternator...	8
	1986 Nissan 300ZX 2 2 3.0L Cuts out, Stall, No power VIN: JN1HZ14S2G MAF sensor fixed it. Upon removal there was evidense of rodent damage to MAF- damage on the screen, smell of Urine etc. Customer had done some of his own work- must have replaced the air filter prior to getting it towed in. Also a piece of acorn stuck in the a...	10
	2002 Nissan Sentra CA 1.8L Hesitation, MIL Lamp on VIN: 3N1CB51D72 I scoped the cam and crank sensors to find a slight variation in the sensors. So i rechecked the timing chain the right way and found it to have too much play. I replaced the timing chain. While holding the chains up side by side, the old chain was 1/4" longer... Trouble codes: P0355.	7
	2006 Scion tC 2.4L power door locks VIN: JTKDE17716 well the harness was the problem. car had been impacted on drivers side. thank you all for your help. dave	3
	1996 Volkswagen EuroVan 2.5L Mechanical VIN: 1WVAE0702T tHANKS TO ALL WHO TOOK TIME TO HELP..i GOT THIS ONE IN THE BAG ROAD TESTED THE THING AND IT RUNS GOOD AND NO LEAKS...lIFE IS GOOD...iT IS ONE STRANGE DUCK BUT WE GOT IT DON [...]..ONCE AGAIN THANKS TO THOSE WHO REPLIED..gERALD	5
	2001 Volkswagen Passat GLS 2.8L MIL Lamp on The signal return line has the ground shielding wrapped around it past the plug and behind the engine it had breached through and had a strand touching the signal return. Thanks to all for responding to this nightmare. Trouble codes: P0102, P0154.	13

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