Automotive Technicians Technical Discussion and Fixes for Feb 20, 2010

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	Help Request	Answers
	2003 Acura MDX 3.5L Poor Idle Quality, Cuts out VIN: 2HNYD18743 It sounded like the timing marks were miss-aligned but have been rechecked 4 times by 2 different techs according to Mitchell and ALLData. We have performed a ecm reset and crank relearn using a Honda PGM-FI tester as well as a Launch. PID data indicates A/F s... Trouble codes: P2197 (a/f sensor signal stuck lean bank 2 sensor1), 7701, 4101, 4102	View
	1995 Buick Century Special 2.2L Misfire VIN: 1G4AG5544S This car was brought to me today from some folks that are 500 miles from home and they're having car problems. I'm trying to help them out so they leave for home asap. The owner told me that before they left on their trip here that the head gasket was just rep...	View
	2005 Buick Rainier CXL 5.3L acuator VIN: 5GAET13M75 vehicle stuck in all wheel drive no codes in system suspect acuator but know if needs reprograming from dealer or is the a way to set it up	View
	2000 Chevrolet S10 2.2L Fuel Gauge VIN: 1GCCS1443Y When you drive this truck the fuel gauge fluctuates all over the range. It will be pegged full, then goes to empty and the "low fuel" light comes on, then will settle in the middle and slowly move and it makes no difference if you slosh the fuel around or tap ...	View
	2003 Chevrolet Trailblazer LS 4.2L cv axle VIN: 1GNDT13S13 Hey, I have this come back given to me. three different techs have put 3 different sets(3 different brands) of cv axles in this Trailblazer. I suspect outer bearings being pitted. Before I tear this thing apart, Anyone have any past experience with play in the...	View
	2003 Chevrolet Impala LS 3.8L compression VIN: 2G1WF52E53 Hello fellow Techs. Hope there is a GM tech out here that has ran into this problem before. I know this engine has two different push rods for intake and exhaust. Just to start out with I'm very meticulous about them when I put one back together not to mix the...	View
	1997 Chrysler Town & Country LXi 3.8L abs module I have a 97 town and country that was setting a pump motor circuit fault code. Clearing code changes nothing code returns right away. Got a module and now it is setting a G switch not processrd. There is a G force sensor in the air bag module and the two modul...	View
	1999 Chrysler 300M 3.5L cruise control VIN: 2C3HE66G2X Hi TECHS. This car disconnects the cruise control on its own after 3-4 miles on the freeway. But the cruise control light on the dash board remains on and the speed of the vehicle is decelerating. After getting on the freeway at 55-65 mph the cruise control ...	View
	2001 Chrysler Town & Country EX 3.8L No Start VIN: 2C8CP74L71 This Chrysler Town and Country was towed into our shop with a no start problem, the instrument cluster was also did not lit up at all but that was not part of complaint . I opened up the hood and found that the battery was not in the vehicle. I called the cust...	View
	2004 Chrysler Pacifica 3.5L Timing Belt VIN: 2C8GM68424 Hi techs! I don't really have a 'problem', but I need some info about this timing belt that I hope someone has had to do before. Basically, mitchell says to do the timing belt you have to loosen the rocker arms. I've done several timing belts on Intrepids with...	View
	1999 Dodge Dakota 3.9L No Start, Stall VIN: 1B7FL26X9X dies while driving/idleing in shop runs 5min up to an hourthen just shuts down checked pcm c1 plug c2 plug wiggle relays kick on fires right up napa fixed pcm/ckp sensor checked 5v at tps good wiggled plug at pcm died checked pins for push out none found noted...	View
	2004 Dodge Ram 2500 SLT 5.9L Surge, Misfire VIN: 3D7KU28C04 when revved engine does not decellerate smoothly semms to ratchet down in speed. Vehicle did have a performance tune installed. When installed engine would not return to idle, it would stay at approx. 2500rpm or so but even then was not smooth. Fuel pressure i...	View
	1997 Ferrari F355 GTS 3.5L abs VIN: ZFFXR41A8V Hello Ferrari Techs: We have got an ABS light coming on especially after the vehicle starts rolling. There is a blink code for this light I believe, and it does blink in a rhythm of two blinks then four with the key on. I don't have a manual on the system so a...	View
	1997 Ford E-250 Econoline 5.4L No Start VIN: 1FTHE24L2V hello i have 97 e-250 5.4l cust. was driving and van and died i have no commu. from ecm w/scanner and the mil. light dos not come on we installed new crank and cam sensor new ecm. same problem i have power and grd at dlc. but when the van was outside my shop a...	View
	1999 Ford Taurus SE 3.0L battery VIN: 1FAFP53S7X car has problem after seating for a week,that the battery goes completely dead,at the shop i ck for amp draw and i get 5 amps before the computer goes to sleep about 20 minutes it goes off line and i get 0 amps.car came back to the shop a coupl of times with s...	View
	2002 Ford Explorer XLT 4.0L Four Wheel Drive VIN: 1FMZU73E82 4 wheel and auto all wheel drive inop. Light doesn't come on and system inop. Got this vehicle from another shop that put parts in it and didn't solve problem. When I checked signals at switch, I found no ground from module. After exhausting our efforts, we fi...	View
	2002 Ford F-150 Lariat 4.6L missing parts VIN: 1FTRW07612 Thanks for your help. I have a "what the heck is this?" issue with some vacuum actuators in this 2002 F150 SuperCrew with a 4.6. I have two small vacuum actuators mounted on the firewall behind the battery that at one end are attached to a second vacuum resevo...	View
	1995 GMC Yukon 5.7L Excessive Emissions, Surge, Poor Fuel Economy VIN: 1GKEK13K2S Greetings fellow IATN techs. I have this 95 GMC Yukon here that is showing me problems. Customer origionally called on tuesday stating that he had went to a friends house, and that the vehicle would not start. We went out to tow vehicle in, and met customer on...	View
	1995 GMC G2500 Vandura 5.7L Brake shift interlock solenoid VIN: 1GDEG25K8S After replacing brake switch two weeks ago, customer returns and says he's unable to shift lever from park position with engine running. I checked operation of brake shift interlock solenoid and though it would work, it didn't seem to work properly. I replaced...	View
	1999 Honda Accord EX 3.0L No Start, Poor Idle Quality, Hesitation, Misfire, MIL Lamp on Car came in with hot soak problem. When car has been driven and left for about 10 min it will not start unless you push your foot down on gas pedal then it fire and chugs (no excessive smoke) we fit a good main relay and new t/body and o2 sensor. It has had th...	View
	2000 Jeep Grand Cherokee Limited 4.7L oil pressure guage VIN: 1J4GW58N1Y oil pressure on dash guage reads 40psi at idle drops to 0psi at 1500 rpm, mechanical guage shows 50psi at idle and 90 psi at 2000 rpm, oil pressure switch has been changed same results,	View
	2004 Lincoln LS 3.0L Misfire, MIL Lamp on, P0353 VIN: 1LNHM86S14 Misfire seems to get more consistent after engine warms for about 20 minutes of driving. 2004 Lincoln LS with 3.0 Liter has intermittent misfire and P0353 ign coil C (cyl 3)primary circuit malfunction, Car does have intermittent misfire. Followed diag appears ... Trouble codes: P0353 (Ign Coil C Pri Circuit failure)	View
	2002 Mercedes-Benz E320 3.2L shifting We have an 02 Benz E320 Wagon that is giving us nightmares. This has been going on for some time now. Vehicle originally came in about 1 year ago with speed sensor codes and in limp mode. At that time we replaced the conductor plate, fluid and filter. Transmis...	View
	1998 Nissan Altima GXE 2.4L timing chain VIN: 1N4DLO1D6W This fine car came in on a flatbed, it turns out the timing chain broke in half. I hoping to find out IF this motor could bend a valve or two? We put compressed air in each cylinder and have a tiny bit of air from the exhaust on every cylinder, it is a "tiny...	View
	2000 Oldsmobile Intrigue GL 3.5L running VIN: 1G3WX52H0Y I am working on a 00 Intrigue intermittently runs. When you try to start it it smokes black (to much gas) the dash turns on and off. the battery was dead so I have no codes. I tried unhooking the airflow wont run I was thinking it could be a stuck injector but...	View
	2001 Pontiac Montana 3.4L Heater VIN: 1G2WP52K51 Van came in with compaint of poor heat. On test drive I found that there was very little airflow from the vents, and it was blowing only lukewarm air at idle. When I increase the RPMs the temp from the vents goes up to good heat but still not much airflow. On ...	View
	1999 Subaru Legacy Outback 2.5L speedometer VIN: 4S3BG6859X With scan tool attached and car running on lift scan shows mph.tests with lab scope on green/black wire to speedo which is a single wire shows not only mv change but with a lab scope it produces a wave square wave as well.but when all plugged in speedo does no...	View
	2007 Suzuki Forenza 2.0L right side lights VIN: KL5JD56Z97 Car was dropped off for no dash lights at night. Found right side driving light and right rear tail lights also not working. Found fuse number 28 (right side illumination) blowen. System has a dead short put a light bulb in place of the fuse and unplugged all ...	View
	1991 Toyota Pickup 2.4L Alternator VIN: JT4RN82P4M I don't have a sufficent ground from the charge light circuit from the alternator. If I check it with a logic probe or DMM I do have a ground signal, but its not able to carry the small amount of amperage to light a test light or the in dash battery light. As ...	View
	1999 Toyota Sienna LE 3.0L No Start VIN: 4T3ZF19C1X hello everyone - vehicle had a no start condition...has NO immobilizer key uses flat steel key. i had no communication to ecm with scan tool. so after testing power & grounds it was determined the ecm was at fault so i bought a used ecm from junk yard same toy... Trouble codes: B2796 (immobilzer)	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1991 Acura Integra GS 1.8L Excessive Emissions, VIN: JH4DB1560M Thanks to all the technicians that helped me solve this problem. After replacing the ignition distributor housing, now I can make adjusts to the ignition timing to the specification. The customer told me that he just replaced the ignition distributor three mo...	19
	1997 Cadillac DeVille d'Elegance 4.6L Ride Control VIN: 1G6KE54Y6V After alot of time and money spent I discovered that the car did have a control module that was missing and the customer decided not to replace it, THANKS to all for your help this job WAS a real learning experience!!! Dean [...] Dean's Repair Svc	7
	2004 Chevrolet Aveo 1.6L Poor Idle Quality, Surge, Stall VIN: KL1TJ62604 Thanks for all the suggestions though all but one had been done before posting. The one not done was checking the timing mark alighnments. Upon inspection(had to remove front covers to propperly check )noticed the exhaust cam was one tooth retarded(BTW the eng...	8
	2004 Chrysler PT Cruiser 2.4L Misfire VIN: 3C4FY48B44 Had 24 replies on this. Great help and thanks! Vehicle still at dealership five pcm's later they say they are talking to factory that built the pcm. I will post when fixed. You can put old pcm back in and program tire size. None of the five they tried would le... Trouble codes: P2305.	25
	2005 Chrysler Town & Country Limited 3.8L tire pressure VIN: 2C4GP64L05 Thanks to all who replied. think that I have found a "happy medium" that customer will be satisfied with. Wasn't planning on changing parameters, but that would help in explaining if it's not even possible. Maybe I should have said looking for info but not...	24
	1999 Dodge Ram 3500 5.9L long crank VIN: 3BGMC3665X Hi everyone, I apologise for the long wait.I am extremely impressed with the info I have recieved from you guys.This is the first I could really connect with someone on this problem.First of all it seems it is rare for one of these cummins ecm to fail and som...	8
	2008 Dodge Avenger SE 2.4L MIL Lamp on VIN: 1B3LC56K58 everyone who said to relearn cam/crank was dead on.cleared the adaptive memory and reset the ECU using the witech.Just clearing DTC's on the GPEC controllers doesn't reset monitors on these.I think that's where I got bit on the behind.The misfire monitor relea... Trouble codes: P0301, P0300.	11
	2000 Ford Focus ZX3 2.0L stop lights/shift interlock VIN: 1QW3R5UI98 Thanks again to IATN, Juan from california,Tom [...] from New Jersey were a big help along with everyone else who responded,thank you. What was found on this focus was under the center console there are two wires that feed the shift inter-lock. located under the ...	6
	2003 Ford Ranger XL 3.0L No Start VIN: 1FTYR14U13 Well, as it turns out, first replacement crank sensor was bad. After an endless amount of testing that ruled out wiring problems or relay problems, I decided to throw another crank sensor at it, even though the scope confirmed a strong consistant signal at the...	15
	1995 Honda Civic LX 1.5L Hesitation, MIL Lamp on VIN: 1HGEG8658S hi boys like to thank every one I had a feeling the ecm was bad you guys game the strenght to get a $150.00 & purchase a used one for the yard this fix this little red demon is out the door & running like new again .thanks to all you guys make it better in thi...	12
	2002 Lexus LS430 4.3L mpx b1 b2 b3 fuses VIN: JTHBN30F22 Finnally found out truth from customer car was just in a accident. when looking on wire diagrams found that air bag control module connector 24 ran off circuit for mpx b1 and mpx b2 circuits right after the Vsc module. disconnected connector 24 from air bag mo...	4
	1999 Pontiac Montana 3.4L Cooling Systems VIN: 1GMDX03XD1 Thankyou for all the replys! The information I recieved from other mechanics helped point me in the right direction. After removing the heads found water seeping into two front cylinders. I am in the process of replaceing the head gaskets and will let you k...	22
	2001 Volkswagen Cabrio GL 2.0L MIL Lamp on VIN: 3VWBC21V01 Dear fellow techs. I recieved good info about evap leaks and how to run evap test .Go to basic setting block 71 and test. I went back and leak test again and found a leak at the top of filler neck section of tank. I was unable to access with out droping tank. ... Trouble codes: P0455 (Gross evap leak).	4
	2002 Volkswagen Golf GL 1.9L Wipers VIN: 9BWGP61J42 This car is fixed, after replies to check the wiper switch, I found the dealer did not plug it in when they replaced the turn signal switch. So because of IATN and members responces we are the heros. thanks for your time. Mitch	4
	1999 Volvo V70 R AWD 2.3L No Start VIN: Y1VLV62DXX hi guys this one is out the door & running like new thanks for the idea of unpluging air flow meter & try to start this made me think of air flow it hit me like a ton of briks air flow meter was defective install a new one & walla I feel ashame i should known ...	13

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