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Prev Professional Automotive Repair Technical Discussions for February 20, 2010
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Open Help Requests for All Makes and Models
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
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...
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
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 ...
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...
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...
1997 Chrysler Town & Country (Van) 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...
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 ...
2001 Chrysler Town & Country (Van) 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...
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...
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...
2004 Dodge Ram 2500 Truck 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...
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...
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...
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 came back to the shop a coupl of times with s...
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...
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...
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...
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...
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...
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,
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)
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...
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...
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...
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 ...
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...
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 ...
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 ...
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)

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...
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
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...
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.
2005 Chrysler Town & Country (Van) 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...
1999 Dodge Ram 3500 Truck 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...
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.
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 ...
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...
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...
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...
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...
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).
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
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 ...
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