Automotive Technicians Technical Discussion and Fixes for May 17, 2012

Join Now

Prev	Professional Automotive Repair Technical Discussions for May 17, 2012 International Automotive Technicians' Network (iATN) - Members Only	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
	2003 Audi TT 1.8L Adaptation VIN: TRUSC28N63 Need exact channel for adaptation of tcm	View
	2011 Audi S5 4.2L AWD-coding VIN: WAUCVAFR5B Dear Audi guys, this one has us buffeld, the accident car arrived driveable, without any fault codes, just a badly leaking and cracked differential. We replaced diff with a brand new diff from Audi Germany, and now we get the fault codes: Address 22: AWD – f...	View
	1997 BMW Z3 Roadster 1.9L air bag light VIN: 4USCH7326V Hi,I have a 97 BMW with the air bag light on.I donot have a cable for our scan tool to fit BMW conector.Is there any other way to get the codes out of it with out useing a scan tool. Thanks	View
	2006 BMW X3 3.0i 3.0L Poor Idle Quality, Misfire, Only in park VIN: WBXPA93456 This x3 runs perfect on the road, lots of power no misses. Idles perfect in drive or reverse. As soon as you put it in park it starts to blubber, appears to start runing rich. No codes and mass air flow and intake hose did not fix symtom. Very strange how perf...	View
	1991 Cadillac Eldorado 4.9L MIL Lamp on VIN: 1G6EL13B6M This car came in with a very high idle and set two codes, codes 55 and code 52. Went through dio test found broken ground wire at the starter. Repaired broken wire and replaced the pcm. Replaced the throttle position sensor. Set the throttle position sensor at... Trouble codes: 55 (throttle position sensior misadjusted), 52 (memory reset long term)	View
	1994 Chevrolet Corvette 5.7L Poor Braking VIN: 1G1YY32P7R This Corvette has a poor braking problem at speeds above 40 mph. If you stop slowly it is fine until you try a panic stop. The pedal goes down about half way then stops, hard as a rock and the car will not lock up the brakes even with the abs disabled. The tem...	View
	1996 Chevrolet Cavalier 2.2L cam and crank sensor VIN: 1G1JC5245T Just replaced head gasket car started came to temp and died. car has inermitently started several times since. when no start condition exists, there is no spark no injector pulse. 12v voltage to cam and crank sensor changes from 9 to 12 volts. but car doesn't ...	View
	1996 Chevrolet Impala SS 5.7L MIL Lamp on VIN: 1G1BL52P5T Hi fellow iatn members, thank you in advance for your time and help,I'm working on a 1996 impala ss, 350, with an optispak ignition system. customer came with a cutting off at highway speed, 60-65 mph.we checked for codes, found dtc po372, ignition high resolu... Trouble codes: P0372, P0336	View
	2000 Chevrolet Impala 3.8L no start VIN: 2G1WF55K5Y Lock cylinder was worn out. Took key and lock cylinder to GM and he just keyed me up a new lock cylinder with the new passlock sensor. Installed the new lock cylinder and turned the key and it started right up. Car sat a couple days until the time came for o...	View
	2000 Chevrolet Impala LS 3.8L #4 cylinder skip VIN: 2G1WH55K7Y Removed value cover for # 4 cylinder. Checked valve springs. Did not see any one of them to be broken. Did leak down test 38% really closed to a good cylinder.Could the spring be weak and still have compression ?. Is there any test I could do to see why there ...	View
	2004 Chevrolet Suburban 1500 Z71 5.3L abs VIN: 1GNFK16Z64 Hello, when turning and taking off this Suburban will intermittently activate the ABS and the pedal will pulsate. Also the engine loses power as if it were being shut down. The stability light on the dash will come on sometimes but not always. So far I have sc...	View
	1999 Chrysler Town & Country LX 3.8L No Start VIN: 1C4GP64L2X Vehicle is in as an intermittent NO-START. It occurs when it wants and only on the first start of the day. The owner states that the vehicle will try to start i.e. start, idle for a few seconds then die, this will happen 3 - 4 times, then the vehicle will not ...	View
	2000 Dodge Ram 3500 Van 5.9L dome lights I need help Dodge Techs!! I have an issue withe the dome lights not operating with the front doors but work fine with the side & rear doors. I beleve they work on a diffrent path then front doors they don't use the courtsey relay, I can take the relay out & th...	View
	2005 Dodge Ram 1500 Laramie 5.7L steady bearing VIN: 3B7HF13Y25 Help Chrysler techs,I'm posting this for a friend from another shop.Truck presented itself with noise from drive line.Replaced worn out steady bearing.Came back couple of days later with steady bearing pushed forward and jamming front shaft into rear of transm...	View
	2006 Dodge Grand Caravan SE 3.3L Misfire VIN: 1D4GP24R66 Hey guys, got a 2006 dodge caravan 3.3l idles rough it pops code p2302 as soon as you start it.I hood a spark test on all cilynder # 3&4 (in front of each other) have very weak spark almost none.change spark plugs,wires and coil pack with same result.check wir... Trouble codes: P2302	View
	2007 Dodge Dakota SLT 4.7L MIL Lamp on VIN: 1D7HE48J87 I have this 2007 Dodge Dakota with a 4.7L that keeps setting a P2098 with MIL. No drivability problems at all just the light. I have checked for exhaust leaks, replaced the B2S2 O2 Sensor twice (both factory MOPAR parts) and even checked to make sure the PCM w... Trouble codes: P2098 (Bank 2 Downstream lean)	View
	2007 Dodge Charger 2.7L 1st, Reverse and neutral VIN: 2B3KA43R07 Binding in reverse, 1st and neutral. It binds the most in reverse. once it upshifts to second gear or higher everything is fine. in neutral with the engine off car pushes easy and normal, If you start it while in neutral it stops and is very hard to push. reve...	View
	2002 Ford F-250 Super Duty Lariat 7.3L 4wd VIN: 1FTNX21F82 First time vehicle was in it was stuck in 4LOW checked and found multiple codes in module, cleared codes and many of them reset right away. Checked module first and found evidence of what we think was a bad coolant leak(everything under the dash and behind the...	View
	2005 Ford Escape XLT 3.0L driveline VIN: 1FMYU93195 Hi everyone, if I've ever needed a lifeline one could use one right now. Definantly after 25 yrs in this profession it isn't my first headache and won't be my last. I got this vehicle in our shop do to poor work at a previous shop and no help from the dealer. ...	View
	2005 Ford Freestyle Limited 3.0L compressor VIN: 1FMZK06105 Vec. came to shop to have compressor replaced due to front seal leaking and ac inop Did the normal compressor dryer flush.Compressor does not engage Do not have voltage to clutch checked relay ok Very limited on diaognistics Control head show all functions wor...	View
	2008 Ford Taurus SEL 3.5L Pats VIN: 1FAHP24W38 Vehicle came in with odometer display burned out. Replaced the Instrument cluster with new from Ford. Programmed new IPC with as built data from ford website. Performed Parameter reset using IDS. Performed Key erase procedure with IDS. Followed instructions to...	View
	1997 GMC Yukon SLE 5.7L fuel system. VIN: 1GKEK13RXV I would like to start off by saying thanks for any help.I am new to IATN. The symptoms are,vehicle will sometimes start hard, but idles completely normal,and when you slowley give it throttle it climbs to rev limiter normaly. If you step on the pedal as if you...	View
	2006 GMC Savana 2500 6.6L MIL Lamp on VIN: 1GTGG25236 Vehicle runs great and starts fine but the wait to start light never comes on. I can comand the light on with the scanner but it still does not turn on. I have checked the wire at the cluster (that the pcm controls) and can watch the pcm toggle it to ground (t... Trouble codes: P0381 (Wait to start light control circuit)	View
	2008 GMC Yukon SLT 5.3L Hesitation VIN: 1GKFK13018 Vehicle has extended crank times. No codes. Checked fuel pressure, within spec. When checking fuel pressure, as soon as engine is shut off fuel pressure drops to 0 istantly. After first key cycle, pressure will not build with continued key cycles. Fuse bo...	View
	2009 Hyundai Genesis 3.8 3.8L Valve Train VIN: KMHGC46F09 This is my wifes vehicle. The engine is a v8 4.6, even though it comes up 3.8 with the vin.. More often than not there is what sounds like a lifter noise, only one. It has been there for about 5,000 miles. Sometimes louder, sometimes not so much and very seldo...	View
	1998 Infiniti Q45 4.1L Hesitation, Misfire, MIL Lamp on VIN: JNKBY31A7W Thanks to all in advance.Car came in with customer complaint of mil on and off and hesitates.I scanned and found 3 codes,2 knock sensor codes and a tps code.I road tested car and found that under light throttle it would loose power and backfire through intake.... Trouble codes: P0325, P0330, P1705	View
	2004 Jeep Grand Cherokee Overland 4.7L MIL Lamp on VIN: 1J8GW68J44 also has p0750 shift solenoid A i need help with this one . came in with all these codes. so i cleared codes and test drove ,re scanned showed 1 trip codes p0158,p0138,p0161,p0141. i found open circiut in heaters in 02 sensors, installed new ones ,cleared code... Trouble codes: P0141, P0161, P0158, P0442, P0456, P0765	View
	2003 Land Rover Range Rover HSE 4.4L brake pad warning VIN: SALLMAMA33 Hello everyone , this Range Rover brake pad warning has just appeared, brake were overhauled last year and new sensors fitted,I have scanned the car and have found no faults that could relate to this and have checked and tested sensor circuits.If I do a reset ...	View
	2004 Lexus RX330 3.3L heater core VIN: JTJGA31UX4 Vehicle came into the shop with leaking coolant onto both side of the floor board suspect the heater core is leaking. I cannot find any repair information for this vehicle on mitchel one. I need the removal and replacement procedures for the heater core on the...	View
	1981 Mercedes-Benz 240D 2.4L Won't shut off. VIN: WDBAB23A6B The customer picked the car up late at night and I got a call about 1/2 hr. later that the transmission was stuck in a gear and he couldn't get it out. I went to the car and couldn't get it out of what sems to be 2nd gear either. It was towed back to the shop ...	View
	1988 Mercedes-Benz 300SEL 3.0L No Start This car has been sitting for a while. It turns over but will not start. I noticed it has a new fuel pump on it. I checked to see if it has power and it does, but I still have no fuel preasure. I am not very informed on old Mercedes, before I jump off in this ...	View
	1993 Mitsubishi 3000GT 3.0L engine code locatation VIN: JA3BM54J6P Hi I am helping freind repair 1993 mitsubishi 3000gt non turbo doch 3.0l. oil pan leak after getting two pans they were different, I realized the engine may not be orginal. I request information where engine seriel numbers or engine code id is, shop key says f...	View
	2002 Nissan Altima 2.5L Mechanical VIN: 1N4AL11D52 Thanks in advance. Looking for Nissan expert. We bought this Altima with a bad engine to repair for resale. used engines are ridiculous in parts but I found a site that sells complete QR20 2.0 engine from a Sentra they claim is a drop in for a 2.5 with low mil...	View
	2005 Nissan Altima SE-R 3.5L No Start VIN: 1N4BL11D15 Originally came in with a ck eng light on and rpm will not go over 2,000 rpm. We found codes P0507, P1122 and B1035 set and a plastic bag stuck in the throttle plate. We removed the bag, cleaned the throttle body and maf sensor and performed the idle relearn p... Trouble codes: P1610 (Security System Malfunction)	View
	2006 Pontiac Montana SV6 3.5L warning indicator VIN: 1GMDV33L06 This is strictly a have you been there question for you GoodWrench guys. Got this '06 Montana with a 3.5 that was sold by used car lot. Customer brought car back a couple of weeks later saying the oil pressure warning in the ipc information center had come on....	View
	2008 Subaru Legacy 2.5i Special Edition 2.5L Tpms system VIN: 4S3BL61668 Hi i have a 2008 subaru legacy sedan-we checked the left rear tire for a leak-we found that the tire sensor was leaking (cracked) we installed a new one from subaru-we put it back on the car-we drove it and the low pressure light did stay on-we checked all pre...	View
	2007 Suzuki Forenza 2.0L MIL Lamp on, loss of power VIN: KL5JD56Z97 when "check engine" lite comes on,car looses 50% power.after replacing above parts still same problem.any help will be grately appreciated. Trouble codes: P2106, P2138	View
	1995 Toyota 4Runner SR5 3.0L Front Diff. I am having a problem with an intermittent grinding/ratchting noise in the front axle of this 4-Runner. It happens at random at low speeds in 2WD. It has the vacuum operated front locking axle. The vehicle will lock the front axle in fine when it is shifted in...	View
	1996 Toyota Corolla DX 1.8L Stall, MIL Lamp on VIN: 1NXBB02EXT Engine had code p0340 , scoped engine to find cam pattern reversed with ghost signal (cylinder firing pattern both above and below ground line)between cam signals. Engine runs but won't idle. Clear cam code and with coil & injectors disconnected you can crank ... Trouble codes: P0340 (Cam sensor code)	View
	2002 Toyota Camry SE 2.4L engine VIN: JTDBE32K32 fist off, she ran it low on oil. put some oil in and brought it to me. i did an oil change, no noise. claims an half hour after she left this engine has a whine type noise from engine. cold or hot. has to be above 1100 rpm. removed belt and is still there. rem...	View
	2006 Toyota Tundra SR5 4.7L Coolant VIN: 5TBET34166 Thanks in advance. We have this Tundra that we did a timing belt and water pump on. The water pump was leaking. Now the vehicle is back with coolant leaking out of the front of the oil pan and the bell housing of the transmission. We have pressure tested the s...	View
	2006 Toyota RAV4 Limited 3.5L Misfire, MIL Lamp on VIN: JTMBK31V06 intermittant p0352 low mileage vehicle. thought I had it nailed cuz I could get code by wiggling pigtail for #2. it looked pinched by engine cover. replaced pigtail and it was good for a whopping 50 miles. I visually inspected wiring from coil to ecm looking f... Trouble codes: P0352	View
	2000 Volkswagen Jetta GLS 2.0L 2-3 shift VIN: 3VWSC29M8Y need some advice on this VW that we just bought. the car shifts as smooth as silk in all gears but has a slip from 2-3 . i know these have " lifetime" fluid in a sealed system. my question is it worth trying a fluid and filter change or am i just wasting time ...	View
	2002 Volkswagen Golf GTI VR6 2.8L Passanger Air Bag VIN: 9BWPH61J92 Air Bag lamp is on. Code 00589 was retrieved. We checked the entire circuit from air bag igniter to module and found no 0.3 Ohms (my leads). Tested through air bag with low impedance fluke meter 2.5ohms. Replaced bag with one from a Jetta that we were assured ...	View
	2008 Volkswagen R32 3.2L hvac VIN: WVWKC71K08 so i have an r32 with great heat on high but if the setting is dropped to 85f vehicle blows cold. I found that if you go to measuring value blocks it shows several vent temps and a heater box temp.they all read 35-37c but theres also a temp of 80c that listed ...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1999 Audi A6 Quattro 2.8L cam plug at cylinder head VIN: WAUBA24B3X Thanks to all who replied. They came out pretty easy driving a screw driver through them. I sealed the new ones with RTV. The VCT solenoids are definitely leaking as well. Thanks for all the advice!	7
	2005 BMW X5 4.4i 4.4L Instrument Cluster and the Radio VIN: 5UXFB53545 WOW!! Well I was able after 3 days of driving it to duplicate the complaint. Was leaning on DSC per others replies and the fact that I did have a E39 do it to me in the past, BUT while on a extended road test It happened to me. Radio blip'd on and off, 4X4 ...	2
	1970 Buick Skylark 7.5L Turbo 400 Thankyou Peter, Ernest, Don, Al, Dwayne, Lane, Allen, John and all the others that posted. After reviewing all my options I concluded that 1st, I didn't have the room at home or work to perform the repair on this trans myself. 2nd, I know cleanliness is a big ...	15
	2003 Buick Regal LS 3.8L No Start VIN: 2G4WB52K33 thank you everyone for great support and helps. I did end up replacing complete engine wiring harness.found sevseal burnt and damaged wires near battery and air filter housing whitch main ecm harness.also found huge roddens nest near air filter housing.this ca...	33
	1998 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC1247W Well , thanks everybody for the help , I forgot to mention that I had replaced the IPC with a junkyard part and it made no difference ( according to MOD the IPC is in charge of and houses the passlock software and then sends the signal to the ecm to start the... Trouble codes: U1016.	7
	2007 Dodge Caliber SXT 2.0L Noise VIN: 1B3HB48B17 OK THANKS TO ALL! MOST OF THE IDEAS I GOT WERE ACTUALLY THINGS WE HAD AREADY TRIED OR CHECKED. I KNOW HOW BUSY TECHS CAN GET SO MAYBE THEY DIDN'T READ THE REPAIR HISTORY OR MAYBE MY TYPING IS SO BAD THEY CAN'T UNDERSTAND WHAT I TYPED LOL. BRAKE ROTOR HAD A ...	23
	2004 Ford Explorer NBX 4.0L Poor Idle Quality VIN: 1FMZU73K44 the customer has decieded to take this on e to the dealer.. to answer some of your questions or replies i had tried cleaning the mass air flow and it didnt help, the plugs that were used were autolites, i tried unplugging the alternator and that didnt help eit...	8
	2005 Ford Mustang 4.0L noise VIN: 1ZVFT80N75 Thanks for all the help on this transmission problem. We repaired the noise when we purchased a new pump alignment tool. The good old tool was just that. The new tool aligned the pump correctly & no more noise. We feel bad that it was such a simple over looked...	7
	2005 GMC Sierra 1500 Denali 6.0L Charging VIN: 2GTEK63N65 Thanks again to all. As was suggested and as we thought the alternator was the culprit. Actually, I should have worded my request for help differently as our tests and the voltage fluctuations pointed to the charging system, I just never saw one act that exact...	5
	2002 Hyundai Santa Fe GLS 2.7L all shifts VIN: KM8SC73D52 Found the other pulse generator/speed sensor not seated all the way. Hold down bolt wasnt tight. I noticed this when I went back and checked all the plugs and harness. Tightend bolt and problems havent come back.	3
	1997 Jaguar XK8 4.0L Surge VIN: SAJGX2749V Thanks for all the help with this one. It was the throttle body.Sent to BBA reman but they could not fix it so I have ordered a used unit. Thanks again for the help iatn partners!!!	10
	1993 Jeep Grand Cherokee Laredo 4.0L No Start VIN: 1J4GZ58S7P found corrosion in crank sensor signal wire where main harness branches. replaced wire from pcm 60 way connector to crank sensor plug-in. started right up .THANKS FOR AL [...] THE HELP GUYS	12
	2003 Jeep Liberty Sport 3.7L Cooling fan VIN: J4GL48K73W Well this one is good. Amp draw was fine. on the last time i drove the light came on. I pulled over and check freeze frame and this time battery voltage was at 12.3, so I reset and drove watching voltage out put and found it jumping around at speed but normal ...	11
	2005 Lexus GX470 4.7L MIL Lamp on VIN: JTJBT20X85 Thanks for the support. I sent this car home yesterday. I'm not calling it fixed, cause I have yet to prove it to be broken.Let me explain. Codes 1442 & 1445 say the 2ndary air valves are stuck closed. They function fine, (Tested them w/ vac pump & gauges w/ r... Trouble codes: P1442 (2nd air valve stuck closed), P1445 (2nd air valve stuck closed).	2
	1997 Lincoln Town Car Signature 4.6L control VIN: 1LNLM82W2V coustor to bring back later will keep you guys posted thanks for your time	6
	2004 Mazda 3 i 2.0L module VIN: JM1BK12F74 thanks for the input the ford ids will no longer work on mazda,s since i didn,t have a module problem I used the original module on the new pump worked fine thanks	4
	2004 Mercury Sable GS 3.0L Power Steering VIN: 1MEFM50U74 Thanks for all the input.I replaced the rack and bled the system and the steering is working good.(pump is a little noisy-expected with ford pumps).I don't know what failed in rack to cause the problem but it's fixed and the cusomer is happy.Thanks again for a...	16
	1997 Oldsmobile Aurora 4.0L pops back/intake VIN: 1G3GR62C4V The thing that struck me about this problem was that the computer never showed a missfire at all. The only item that showed any problem was the long term fuel trim was positive on the front even bank of cylinders and the back was perfect. What we found when lo... Trouble codes: P0741, P00, 420A, P1139, P1537.	7
	2005 Saab 9-7x Linear 4.2L cyl 2 VIN: 5S3ET13S65 The customer had a aftermarket warrenty at a dealer so they took it there to get it fixed	4
	2008 Saturn Astra XE 1.8L Ipc VIN: W08AR67158 I got this one done... Thank you Brian! Anybody programming an Astra you should know everything will appear to be going normal i.e. there won't be any warnings telling you to back out and use a different procedure, or remove fuses etc... but it won't work. I w...	3
	2007 Toyota Tacoma 4.0L 1st and 2nd gear Thanks for the replies...I open up the trans pan and did some visual check for wear. Everything looks normal and even the metal shavings in the magnet. I started to removed the 3 shift solenoids and to see any blockeage or dirt and at the same time bench te...	6
	2006 Volkswagen Jetta 2.5 2.5L Ignition lock c VIN: 3VWSF71K76 Thank you for all of the great responses. The problem ended up being a flap of plastoc inside the cylinder was blocking the wire hole. The cure was to cycle the key several times to get the plastic to move. From then on the procedure went smooth.	5
	1995 Volvo 850 Turbo 2.3L Hesitation VIN: YV1LW5713S I drove the car for two days without a problem. The customer comes in and pays for the repair and makes it not even a mile up the road before coming back. So I'm at square one. I also before all this I had tried known good mass air sensor with no change in per...	10
	2005 Volvo S40 i 2.4L MIL Lamp on VIN: YV1MS38235 Sorry for the delayed response. I recieved many responses that pointed to the relocation of pwm fuel module due to water intrusion and also many recommended replacing the fuel rail pressure sensor. The problem is that this vehicle is from a used car lot so t... Trouble codes: P0190, 2600 (OE code- fuel pressure).	11

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