Automotive Technicians Technical Discussion and Fixes for Dec 2, 2011

Join Now

Prev	Professional Automotive Repair Technical Discussions for December 2, 2011 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
	2001 Audi A6 Quattro 2.7L trans leak VIN: WAUED54B51 do not know what is causing the fluid to leak out the breather, also installed a reman torque converter. please help	View
	2005 Audi S4 4.2L Engine Misfire VIN: WAUGL68E05 Client had vehicle towed to shop for engine misfire. Misfire happened 2 nights ago, check engine light came on. Scanned vehicle found codes p0300 multiple misfire, p0301 misfire cyl1, p0302 misfire cyl2, p0303 misfire cyl3, p0404 misfire cyl4. A rattle in engi...	View
	2001 BMW 325i 2.5L valve cover seal VIN: WBAAV33491 Guys, got a problematic BMW here... Big surprise. 01 325i, 2.5 6 cyl. It keeps leaking oil from the #1 and #2 spark plug tube seals. I've done this VC gasket twice now, the second time I even sealed it up with a little additional silicone gasket maker. It work...	View
	2001 BMW 740iL 4.4L head light washers VIN: WBAGH83431 The head light washers work every time even with the lights off. I ordered a relay and the dealer sent me relay# [...] I can't find where it goes also the diagram shows a head light washer module and I can't find that. I think the module is bad. Does anyo...	View
	2006 BMW X5 4.4i 4.4L various customer calls with complaint of "trans failsafe program" message. comes in next day and message is gone. comes and goes. when it comes on the radio blinks out as does some other convenience features. scanned with launch (best i can do) vehicle voltage is 13.7...	View
	1993 Buick Century Special 3.3L Excessive Emissions VIN: 1G4AG55N3P Hey guys, Ok , ive got this 3.3l Buick with elevated nox at 15mph and 25mph.failing ASM here in CA. Around 1000PPM at both speeds.Intrusive catalyst test found less than 50 % reduction of Nox.Replaced cat 2 times with aftermarkets , same results. Fuel pressur...	View
	1995 Chevrolet Tahoe 5.7L Hesitation, Surge, Cuts out, Stall, Misfire VIN: 3GNEK18K2S Tahoe, Came no power under acceleration falls flat on face and seems to back fire sometimes out throttle body.Check spark out put and is good.Fuel pressure good.Did find #8 spark plug oil fouled and not firing cylinder was dead replace spark plug and cylinder ...	View
	1999 Chevrolet Malibu LS 3.1L Starting VIN: 1G1NE52M6X Engine turns over but has no spark, replaced ign module and crank shaft sensor cam sensor is working all fuses are good could it be the pcm thanks	View
	2000 Chevrolet Impala LS 3.8L MIL Lamp on VIN: 2G1WH55K8Y Vehicle came in with code, tested and found oxygen sensor wired incorrect. Install correct oxygen senor to no avail same code immediately. Tested circuit again and came to same conclusion, replace oxygen sensor. Replaced again with AC-Delco (as did originally)... Trouble codes: P0134 (B1s1 02 sensor ckt inactive)	View
	2000 Chevrolet S10 2.2L Misfire VIN: 1GCCS1451Y Vehicle came in severly overheated. Compression tested engine and leak down tested and found compression leaking in to coolant passages. When Coolant was low enough engine would run Good (no miss fires) and had strong spark in all cly. Replaced engine with a r... Trouble codes: P0300	View
	2001 Chevrolet Silverado 2500 HD 8.1L Brake Pedal VIN: 1GCHC23G51 Hey guys! I need some help with this one. This truck came in originally for a intermittent soft pedal. Customer states that he would be driving, and when he hits the brakes, the pedal would go down to the floor, but if he pumps the pedal it will come back up, ...	View
	2002 Chevrolet Avalanche 2500 8.1L No Start, Stall VIN: 3GNGK23G52 Vehicle died on highway, no start, fuel pressure reads 65psi, have changed crank and cam sensors. No codes with snapon scanner.Cylinder one fires when first cranked, then nothing after that. No others fire at all. The security light no longer flashes, maybe so...	View
	2003 Chevrolet Silverado 1500 SS 6.0L Vent Controls VIN: 2GCEK19NX3 Hi, Thanks for reading my post. This truck blows the heat and air only out the defroster. I have checked the TSB for the wires at the back of the glove box and there is no wear there at all. The customer doesn't want to take the dash apart without knowing what...	View
	2004 Chevrolet Silverado 1500 5.3L Instrument Cluster VIN: 2GCEC19T84 After Reprogramming PCM to install latest software updates, Could not reset tire pressure system to clear message from instrument cluster message center. Found tire pressure sensors had been removed from vehicle. Customer picked up vehicle and stated message w...	View
	2004 Chevrolet Tahoe LS 5.3L Airbag VIN: 1GNEK13Z24 I have a very good customer's Tahoe in the shop right now with the airbag light on. DTC says B0026. Followed the GM TSB for connector terminal fretting on the airbag connector inside the driver side hinge panel. Soldered in the new connections, hard code comes...	View
	2004 Chevrolet Optra 2.0L engine VIN: KL1JD62Z34 Before we start to open up things and second guessing ourselves,could someone shed some light on this. we have alldata and this vehicle does not show up,we were told same specs as Suzuki forenza. thanks in advance	View
	2005 Chevrolet Equinox LT 3.4L Leaking r transfer case. VIN: 2CNDL73F05 This vehicle is leaking out the weep hole on the passenger side transfer case cover. Remove cover and there is an inner and out seal. I believe the oil is comming from the center shaft and possibly needs an O ring or something. Any chevy guys see this. I didnt...	View
	2008 Chevrolet Colorado LT 3.7L Poor Idle Quality, VIN: 1GCDT13E68 Teh truck runs fine on cold start and driving. After the engine has been warmed up and shut off for 2 hours on restart the engine idle is very rough and low for about 1 minute [feels like engine is flooding] we have smoke tested intake manifold for leaks remov... Trouble codes: P0171	View
	1997 Chrysler Cirrus LX 2.5L No Start, No spark VIN: 1C3EJ56H2V Howdy Y'all, this 97 Cirrus V6 2.5 cranks good no start..NO COMMUNICATION AND ASD RELAY DONT ACTIVATE. I got this new Veris and I'm still learnin how to use it. With NO Communication..I am losted. Even when I try to activate the ASD relay...I can ground that r...	View
	2003 Chrysler Town & Country LX 3.8L No Start VIN: 2C4GP44L73 Customer had van towed in for no start.The customer said he replaced the battery,and started the van and it ran for about 5 seconds and shut off and now it wont crank.There is no power getting to the starter solenoid.At the starter relay we arent getting groun...	View
	2007 Chrysler Pacifica Touring 4.0L driveshaft VIN: 2A8GF68X57 This Pacifica came to us with a broken driveshaft[rear coupling to differential had disintegrated and broken off]. Ordered up a new driveshaft from dealer,installed and test drove. All seemed fine. 10 days later it is back with a shudder/vibration that starts ...	View
	2003 Dodge Caravan SE 3.3L No Start VIN: 1D8GP25313 No crank / no communication to PCM. No 5v to sensors, no 8-9v to CKP/CMP. Cut 5v & 8v wires right off PCM to elliminate sensors, still not voltage out of PCM and no communication. Tested all powers & grounds, all good. installed rebuilt PCM, started ran a shor...	View
	1999 Ford Explorer Sport 4.0L camshaft syncro VIN: 1FMYU24X3X Hey guys, looking for some sort of timing mark on the crank pulley of this 99 Explorer. I've got the squeaking cam syncro, and am replacing it, and I believe I have it aligned properly as the tab on top of the syncro is in the center of the window where the ca...	View
	2001 Ford E-150 Econoline 4.2L Misfire Missfire code po305 when the egr is commanded only. I changed the injector and also switched the plug and wire for that hole. The valve springs are good and the compression is 200psi on 3 cylinders as I did not check them all, just did comparison. Decarbed wit... Trouble codes: P0305	View
	2002 Ford E-350 Econoline 7.3L wipers VIN: 1FDW35F72H This vehicle is a Patient Transfer unit.The wiper intermittently come on by themselves.We can not duplicate it and guessed at a module and switch ,no fix.Customer thinks that the washers may be coming on also.Any ideas would be great.	View
	2005 Ford Mustang GT 4.6L No Start, Misfire VIN: 1ZVFT82H85 Car floods out cold, once you get the fuel cleared out it will start and run normally but with 0xygen sensor codes p2196/p2198 and also enters into limp mode. Checked 02 voltages at idle and they read .980 bank 1 and .970 bank 2. STFT's are -24.5%. This car ha... Trouble codes: P2196, P2198	View
	2005 GMC Jimmy SLS 4.3L o2 sensors VIN: 1GKCT18X05 I have a 05 Jimmy and when the truck feels like it turns on the engine light. It sets codes p0053 and p0059 heater resistance. truck came in with new 02 sensors, i have check resistance of wires to pcm with no problem and advise will help. Thank you in advance	View
	1991 Honda Accord LX 2.2L tail itedash indicator VIN: 1HGCB7651M customer complained cops pulled him over for tail lite out its on n its out replaced al bulbs n die electric all of them,squezed sockets for prope fit.noticed that while all lites r on das lite is indicatin that there is a lite out at tail lites.drove it tonit...	View
	1997 Honda Accord LX 2.2L engine VIN: 1HGCD563XV Customer came to me a few days ago. Car stalls out after driving for a while. I did drive vehicle later that day. It took about 30 minutes before the vehicle stalled while I was driving on the highway. It just quit running and like one turned the key over to a...	View
	1998 Honda Accord LX 2.3L engine ? VIN: 1HGCG5541W makes a grinding power steering type noise when its cold goes away once its warm removed acc belts noise still there also did my tbelt & waterpump & tensioners hoping it would go away since they were needed but nope not much time since its my personal car was ...	View
	2004 Honda Accord EX 3.0L headlights At times this vehicle will turn the headlights on while sitting in the garage at night.(and probably other times during the day but this is unverified) This condition occurs when the headlight switch is left in the "automatic" setting. The keys are not left in...	View
	2005 Honda Pilot EX 3.5L Tpms VIN: 2HKYF18715 VEHICLE IS SETTING A CODES FOR THE FOLLOWING: 32-1 right front tire pressure sensor signal failure 34-1 left front tire pressure sensor signal failure 36-1 right rear tire pressure sensor signal failure 38-1 left rear tire pressure sensor signal failure 41-1...	View
	2003 Hyundai Santa Fe GLS 3.5L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: KM8SC73E63 found the injector patern to be ok. can not find any vaccum leaks. found that b1 s2 o2 sensor is reading 40mv and stays there. Trouble codes: P0300, P0301, P0303, P0305	View
	2004 Jaguar Vanden Plas 4.2L MIL Lamp on VIN: SAJWA74C64 My concern is the Evap codes. They will reset in 3-4 days of driving.I have tested the gas cap. I have smoke tested this vehicle Evap system. I can not find the leak. It loses pressure but no smoke shows up anywhere. I even tried smoke testing from the gas fil... Trouble codes: P0442 (Evaporative small leak), P0456 (Evaporative very small leak), P1582 (flight recorder data stored), P0328 (Knock sensor ckt 1 high)	View
	2001 Jeep Grand Cherokee Limited 4.0L cluster VIN: 1J4GW58S51 cluster drops out with a code p1687 no cluster message and p1686 no skim bus message	View
	2007 Jeep Wrangler X 3.8L MIL Lamp on VIN: 1J4FA24177 tested all voltages & grounds to egr valve all voltages good replaced valve & code resets first trip . Trouble codes: P0405	View
	1998 Lincoln Continental 4.6L No Start VIN: 1LNFM97V3W Local shop replaced dash bulb[s], apparently losing PATS security. Only had one key. Cut key. Attempted security relearn. 10 minutes OK. Learn on either key reads: 'fault detected' see diag card. Programs through the VIC if that helps. I'm leaning toward 1st t... Trouble codes: P1681, P1260	View
	2002 Mercedes-Benz E320 4Matic 3.2L RF shock VIN: WDBJF82J02 hello to all and thanks for the help. i have this e320 that has a noise in right front shock area more of a rattle than a thump. owner thinks it is less of noise when someone in pass. seat.have gone for rides and can hear the noise over a set of bumps sounds m...	View
	2007 Mercury Monterey Luxury 4.2L Safety VIN: 2MRDA22227 I have this mercery that intermently blows fuse 60 that powers the power door locks. when the fuse blows all doors unlock except the right sliding door this door remains locked. Fuse only blows in unlock situation. With right sliding door lock accuator unpluge...	View
	2001 Nissan Sentra GXE 1.8L Horn VIN: 3N1CB51D21 This should be a simple repair...but it's not. The horn isn't working. According to the wire diagram: The switch connects the ground through clock spring(spiral cable)A WHT/GRN wire goes out to relay post #1(before that it branches off to the antitheft system)...	View
	1997 Plymouth Breeze 2.0L Erratic shift VIN: 1P3EJ46C9V Customer brought in saying it would not shift unless rpms are up to 3500. When driving at hyway speeds it may or may not go into over drive. When it does go into OD it may shift back to 3rd gear and some times go back into OD and stay or go back and forth. I t...	View
	2005 Pontiac Montana SV6 3.5L Stall VIN: 1GMDV23L45 Customer complains that the engine stalls a low speeds occsionally. Also, it occassionaly has extended crank and start stall symptom. The fuel pressure is 58 psi with pump running, the air intake system has no holes. Crank signal appears ok, although it is har...	View
	2000 Porsche Boxster Roadster 2.7L Lighting VIN: WP0CB2983Y Have a strange lighting question for you. I have this boxster S with xenon head lights. customer says intermittenly the left side head light stops working. this has been an ongoing problem. we have replaced the bulb. did not fix. have switched the left and rig...	View
	2002 Porsche 911 Carrera 3.6L steering hello porsche technicians, i have a 2002 911 carrera 2 that has a wandering feeling while driving over 50 mph. it feels like it is driving on gravel at times, and is somewhat unnerving. i checked all suspension and steering components and have foung nothing wo...	View
	2006 Saturn Ion-2 2.2L ignition VIN: 1G8AJ55F16 Customer has complained that vehicle wouldn't start in the morning. Difficult to extract as to what was actually happening (IE: starter engaging...key turning...) Must have started the car 150 times before the ugly green beast showed its face. Turn the key to ...	View
	1995 Toyota 4Runner SR5 3.0L abs lamp VIN: JT4VN36H2S Help Toyota guys!!! After what appeared to be a good repair.Road tested all was good.Next day ABS lamp was on. We (automotive students and myself)removed speed sensor to get a view of abs ring and seems to be not directly under the sensor.Seems to be too far o...	View
	2001 Volkswagen Jetta TDI 1.9L MIL Lamp on VIN: 3VWSP69M61 To all VW techs I know very little about VW diesel. My friend's brother has this Jetta and its getting a P1248 code. I cleared it and it came right back. I have read about many things can cause this code from a fuse to the timing, to the #3 injector. I would ... Trouble codes: P1248	View
	2004 Volvo XC90 2.5T 2.5L MIL Lamp on VIN: YV1CZ59H84 Hello,did a rear main seal on this vehicle .now have code po337(ECM-5200)crank sensor code,origanally the code was intermittant and the engine reduce power light would only come on off idle. We have checked the flywheel for any damage and play also replaced th... Trouble codes: P0337	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	2004 BMW 745Li 4.4L engine VIN: WBAGN63474 Sorrry about that , the car went to the dealer for the to be tornen down for repair ( see update )	13
	2006 BMW X3 3.0i 3.0L Srs VIN: WBXPA93496 Well, you did it again. Thanks to all who replied. This is not a plug and play part. It does require coding. Howard and mike, Thank you. Regards to all. Brad	4
	1998 Buick Park Avenue 3.8L Engine/trans Vibration VIN: N0TAVAVA1W thanks everyone for all your help. After reading about that bulletin where the rear/side mount for the transmission is i looked closer and found that the mount had been shifted. I loosened the two bolts that hold it in place and shifted the trans, retightened ...	16
	2006 Buick Terraza CXL 3.5L abs VIN: 5GADV33L56 12 replies. Thank you, I actually feel kind of stupid on this one. I was so set that the problem was in the column that I just couldn't think of it being anythimg else. As most of you said, I did find the problem in the right front wheel sensor harness. The ha...	13
	2000 Cadillac Eldorado ESC 4.6L inner cv boot VIN: 1G6EL12Y8Y Thanks to the three people who responded to what I requested. Help with the two piece boot. I did not ask about reman or new axle replacement. I've been at this business for over 40 years and know about pricing of parts etc. What I failed to mention was th...	17
	1995 Chevrolet S10 4.3L 4 wheel drive light blinks Didn't get to work on this again yet. Had a lot of good info on the system & how it works. I think a bad part was installed at one point along the way.Thanks for all the replies. I will post again if & when we figure it out.	15
	2000 Chevrolet Silverado 1500 5.3L Hesitation, MIL Lamp on VIN: 2GCEK19T8Y Customer says truck runs great cold!!! Mass air flow and leaking intake gaskets. Used Costco borascope to look under intake when using smoke machine. Recorded video to show customer. Used link and volumeric efficency test to condem MAF. The scope has a detac... Trouble codes: P0101, P0161, P0463.	7
	2011 Chevrolet Silverado 3500 HD LTZ 6.6L Excessive Emissions, Cuts out Thanks for all support folks while I rant on! we went in to dealer today geared up for battle. Service manager listened to our complaint and wiped out all fees. I feel that going in with my dad,me having my name on my shirt may have helped ,but overall they k...	12
	2001 Chrysler 300M 3.5L No Start VIN: 2C3HE66G01 Just wanted to say thanks to all of the guys who replied. We work on everything under the sun and I think sometimes it takes a few years to get back to a vehicle like this one. The timing belt had almost no teeth and must not have been off by much because the ... Trouble codes: P1799.	13
	2007 Dodge Caliber SXT 2.0L Rear Wiper VIN: 1B3HB48B77 Good Morning fellow tech's! This car was a challange.I was able to use my Slous-Pro Scanner(we also use the Versus) to read codes from the TPIM. Once the codes were cleared the rear wiper was able to operate as designed. We believe that one of the components w...	15
	1993 Ford Ranger STX 2.3L Pulling Right VIN: 1FTCR10A3P Fellow techs, I have not been able to determine the cause of the pull or drift as of updating this post. I have parked the vehicle and when I get a chance to expore the real problem, I will update the fix. Thanks to all who took the time to reply, Bill.	47
	1997 Ford Expedition Eddie Bauer 5.4L Misfire, MIL Lamp on VIN: 1FMFU18LXV First I must apologize, I did not mention that I had done a compression test and I did a smoke test. I thank all of you that took the time to help me out and your help was crucial in deciding what to do next,( I hate throwing parts at it). Many of your sugges... Trouble codes: P0305.	24
	1998 Ford Ranger Splash 4.0L Misfire VIN: 1FTYR11X6W replaced injector number 3 runs great customer happy.. thanks everyone Trouble codes: P0303.	16
	2002 Ford Thunderbird 3.9L Transmission VIN: 1FAHP60A42 OK. I know everyone who responded will need this information. The "Reverse Pressure Switch Circuit" was bad. It was replaced by the dealership and the system fluid level corrected. The transmission is shifting fine with no issues. Next time I will not assume a...	11
	2005 Ford Taurus SE 3.0L icp lights VIN: 1FAFP53U05 Thanks for the replies. Car is fixed with a re-programming of the PCM. Car is working good now and customer is happy.	3
	2007 Ford Crown Victoria Police Interceptor 4.6L condensor VIN: 2FAFP71W37 Thanks for everyone that replied to my help request. The fix was either to replace the condensor or to install an auxiliary oil cooler that bypassed the OEM cooler. Thanks for every one that replied again. Dave.	13
	1998 GMC Savana 3500 6.5L No Start VIN: 1GDJG31F2W Thanks for all your help on this one. It turned out to be the Mitchell manual and our Modis scan tool both had the wrong relearn procedure for this vehicle. After several attempts to relearn the Vehicle Theft Deterrent (VTD) by clearing the code, (P1631) cyc...	6
	2004 GMC Envoy SLE 4.2L bad vibration VIN: 1GKDS13S04 Thank you all who replied! Most of you nailed it on the head, it was the motor mounts! I got a pry bar on the engine and the frame, and as soon as I put pressure, the vibration was gone. Two new mounts from GM, and all is well! Thanks again!!	13
	1999 Jeep Grand Cherokee Laredo 4.7L cruise not turning on VIN: 1J4GW58N3X Over the past few weeks I have tried every thing I can think of to make this problem come back, all to no avail. Can't justify calling it fixed, all I can figure is that something made contact that will not open back up. I greatly apreciate all the help that w...	14
	2000 Land Rover Range Rover HSE 4.6L Transfer Case VIN: SALPV1640Y Thank you for all the replies,you guys all hit it right on the head,there was a fuse in #11 under the passenger seat!!! Somebody must have tried to fix this (or another) problem by adding a fuse in slot 11 under the pass seat but that is how to set it in neutr...	7
	2001 Land Rover Discovery Series II LE 4.0L MIL Lamp on VIN: SALTH15431 Sadly, I have not found a sufficient explanation to resolve this one. Last time it was in, I swapped the left and right upstream o2 sensors, looked at the oxygen sensor values as I performed the secondary air test, they looked the same to me. The SAIR valves ... Trouble codes: P1415.	7
	2001 Mercedes-Benz CL500 5.0L Abc System VIN: WDBPJ75J41 THANKS FOR THE HELP. I COULD HEAR THE PUMP RUNNING, BUT THE SYSTEM PRESSURE WAS STILL VERY LOW WHILE MONITORING SYSTEM PRESSURE WITH THE SDS. WE REPLACED THE PUMP UNDER WARRANTY, END RESULT WAS 195 BAR. AT ALL TIMES, NO MESSAGES ON CLUSTER = A HAPPY CUSTOMER. ...	5
	2000 Mercury Villager Estate 3.3L Speedometer VIN: 4M2XV14T0Y Well after confirming that there was signal to the IP I gave my customer the estimate for a reman. IP from Ford. It took them a wile to decide to fix it but they did decide to spend the money so we installed the IP yesterday and all's well. I'd like to thank e...	9
	2001 Nissan Pathfinder LE 3.5L Hesitation, Loss of power VIN: JN8DR07YX1 Thanks for the replies. Well - the diagnosis on this one will be on hold til after the busy season. And when it can be left for a longer stretch. Emission test was done on it's last visit and it passed without issues. Problem is felt on highway with almost no ...	3
	2007 Pontiac G5 GT 2.4L Misfire, MIL Lamp on VIN: 1G2AN15B97 Back again with a report on the replies and what I found. I had 4 replies on this post. One said to swap the plugs and injectors. #4 injector, plug and coil had already been replaced, as stated in the post. Some said heat and tap on the ECM, which I had alread... Trouble codes: P0204 (injector 4 circuit problem), P0300 (cylinder misfire).	4
	1995 Toyota Camry LE 2.2L rear brakes VIN: 4T1SK12W9S Thanks for all the responses guys. The repair was a simple one. The slides on the calipers were froze up. Got them free again and the problem was cured. Thanks again.	19
	2003 Volkswagen Jetta GLS 2.0L 3-4 shift VIN: 3VWSK69M43 I had VW dealer reflash PCM, no luck. They could only tell me it was something internal and they do not take these units apart. Customer opted to get a used trans. There is so little information about these VW tranys i think I'll just avoid them for now, to...	8

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