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Professional Automotive Repair Technical Discussions for May 3, 2008 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for All Makes and Models
| Help Request | Answers | |
| 1983 Cadillac Eldorado 4.1L Poor Idle Quality, Surge, Misfire VIN: 1G6AL5787D This Cadillac is killing me. Vehicle presented with a moderate ignition misfire. When vehicle was first given to me, I found that the #5 plug wire had burned through on the exhaust due to poor wire routing. Replaced cap/rotor and wires at this time. Plugs appe... |
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| 1988 Cadillac DeVille 4.5L blower fan VIN: 1G6CD5153J blower fan stays on all the time...even with key off. diagnosed it down to two options...the auto temp control module...or the electronic climate control module...anybody ever had this happen? have completely unplugged ignition switch and fan still runs. |
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| 2001 Cadillac Seville STS 4.6L Cooling Systems VIN: 1G6KY54951 cadillac techs please help me out.this veh is my personal and in the mornings when i start it puffs white smoke out tailpipe and skips till the coolant? burns out.i think it may be a head gasket,or could there be coolant introuduced from somewhere near intake ... |
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| 1999 Chevrolet Malibu LS 3.1L Stall, Misfire VIN: 1G1NE52J5X After replacing intake manifold gaskets to stop water leak engine would backfire and barely run. Can keep engine running only with open throttle, but it backfires randomly. We checked that pushrods are installed correctly, checked all connections and vacuum li... |
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| 2000 Chevrolet S10 4.3L belt noise VIN: 1GCCT19W8Y need some help here,kind of a stupid problem to be posting, but i have a s-10 with belt noise i have replaced the belt twice,with a gm belt,noise goes away for about two weeks then slowely starts to return and then gets worse, i have replaced tensioners, idler... |
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| 2003 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J83 hello all and again thanks in advance on this one. It is a very intermittent no start but cranks every time. Every time it won't start it acts like the anti-theft activates. It will try to start then quit and just crank. Before changing the key and tumbler wit... Trouble codes: U1000 (class 2 serial comm. problem), P1189 (eng oil press sw circuit) |
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| 1994 Plymouth Grand Voyager SE 3.3L No Start VIN: 1P4GH44R1R thanks all .I have no start that is only getting spark on 2 cylinders.No ground pulse going to coil pack on other 2 circuits .Checked at computer still no output.Has injecto pulse.CK engine light flashes erraticly.suspect computer so tried good used one out of... |
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| 2001 Dodge Ram 1500 Laramie 5.9L Poor Idle Quality, Misfire VIN: 3B7HF13ZX1 This vehicle has an intermittent misfire at idle. There are no trouble codes. I checked the misfire counter and all cylinders says 0 yet you could feel the misfire. We checked the compression and all cylinder are 170-180 psi. Smoke the intake for vacuum leaks.... |
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| 1994 Honda Passport DX 2.6L crankshaft pully VIN: 4S6CG11EJR Car came in lack of power and misfire. Cust says he was going up a hill very fast, also hears a noise when starting. determined misfire caused by 100 psi compression all cyl,s. Checked valve timing both banks off about 8 teeth. Cannot remove balancer, even wit... |
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| 2000 Hyundai Tiburon 2.0L reverse VIN: KMHJG25F1Y hello, and help!! car was towed in for slipping in drive,no reverse . fluid was burnt, had dtcs p0732 & p0734. 2nd & 4th gear ratio errors . did a quick test on the lift, the pulse generators/speed sensors are working. the trans range switch is also adj. prope... |
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| 1997 Jeep Wrangler SE 2.5L Surge VIN: 1J4FY29P2V Fellow techs, this Jeep was recently purchased and has the looks of a vehicle that's got 150k miles on it as opposed to what the odometer reads. Customer complains of a surge under load in third gear. While driving at a steady cruise of about 50mph or so, when... |
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| 1998 Jeep Cherokee SE 4.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on during inspection i used a timing lite to verify miss fire. #1 seems to fire twice to every revolution all others fire once. # will fire rapidly for several rpms then will not fire for several rpms. all others seem to fire regularly . vehicle runs great off id... |
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| 1998 Lincoln Town Car Cartier 4.6L Misfire, MIL Lamp on VIN: 1LNFM83W4W car came in with #4 misfife during ower checks we found that #4 injector stoped fireing after about a minute and a half. checked noid light on known good injectors no problem with light. computer sends ground signel nothing in between except wireing and conect... Trouble codes: P0304 (cylinder 4 misfire) |
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| 1988 Mazda 323 1.6L carpet drivers side VIN: JM1BF2321J I love this car its fun to drive and great on gas. Just recently I get a rain water leak in the area of the drivers left foot puddling at the heal area. I hosed it down then quickly check under the dash area but dont see anything, yet out side over night in th... |
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| 2001 Saab 9-3 2.0L Poor Idle Quality, Surge, MIL Lamp on VIN: YS3DD58H91 Customer complains that vehicle stalls. shakes when first starts, battery light goes on then shuts off. Once running doesnt accelerate well, shakes when stopped, runs "jerky", engine light is on steady. used lab scope to measure pedal position 1 & 2, no notic... Trouble codes: P1530 (Pedal Position sensor 1 2 Circuit Sum Out of range) |
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| 1991 Toyota Pickup DLX 3.0L convertor or ecu VIN: JT4VN93DBM Thanks in advance for any help on this one This automatic will shift in all gears including over drive when it is some what warmed up once it gets fully warmed up and you drive it on the freeway it will act like it is in nuetral I think some how it is cancelli... |
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| 2001 Volkswagen Jetta GLS 2.0L speed sensor VIN: 3VWSK69M41 hello all hopfully some one can help me with this jetta. customer complained that car will not shift. found that tcu was not getting signal from speed sensor. have seen 2 other jettas that had this problem and they both had a bad sensor. replaced this sensor a... |
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Fixes & Summaries for All Makes and Models
| Fix/Summary | Answers | |
| 1996 Dodge Intrepid 3.5L Starting VIN: 1B3HD46F5T thank you for all the ideas we have changed cam, crank sensor and asd relay and ignition switch to no avail and checked as much wireing we could get are hands on. this problem is so intermittent and usually happens only to the customer, we have a computer come... |
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| 1998 Ford Explorer XL 4.0L abs VIN: 1FMZ435P1W ok the fix was the rear wheel speed sensor. after driving a while it started setting rear wheel speed code. thanks for every ones help |
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| 2000 Ford Windstar LX 3.8L theft system VIN: 2FMZA5144Y Thanks for the replies. All pointed to a bad connection problem, not theft system. We found a bad ground that fixed the problem. |
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| 2007 Ford LCF C550 4.5L Mechanical VIN: 3FRML55Z77 Thanks to envery for helping on this problem. We took the truck to Ford and had the computer flashed, this solved the problem with hard start when cold and it runs way better!!! But there is another TSB for a hard start when hot, the TSB number is 07-7-1. The ... |
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| 1998 GMC K1500 Sierra SL 5.7L brakes VIN: 1GTEK19RXW thanks to everyone that took their time to reply i really appreciate it.i walked around this thing on the lift for two days before i decided to tackle it again.my genisys scanner does not have the capability to activate abs valve for bleeding so put it in four... |
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| 2001 GMC Savana 3500 5.7L battery light VIN: 1GCHG35R11 well sometimes you need to go back to the basics -snap vat -showed new alternator to be working -aok --light was flashing like an old check eng light code --we finally plugged in another unit and there were no more codes present -replaced the defective unit a... |
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| 2002 GMC Savana 3500 5.7L No Start, Poor Idle Quality, Surge VIN: 1GJHG39R52 Boy do I feel stupid! I checked all the powers and grounds but because this was intermtitent at the time I checked them they were fine. I even took the vehicle to the dealer and they couldn't find the problem so I don't feel too bad. Don't ever overlook the ob... |
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| 1990 Infiniti Q45 4.5L compressor VIN: JNKNGO1C9L Thanks alots for those that offer advise for this Q45. Majorities of them was a plugged system mainly from the receiver/drier, and all recommended replacing the expansion valve. I passed the recommendation to my friend. He said he went through and blow compr... |
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| 2004 Kia Rio 1.6L Hesitation, Surge, MIL Lamp on VIN: KNADC12594 THANKS FOR THE HELP. AFTER TESTING EVERYTHING ELSE, CHECKING THE FLYWHEEL AND THE CAM TIMER. RUNNING ALL THE OHM TESTS I REPLACED THE PCM AND IT RUNS GREAT. AGAIN THANKS FOR ALL WHO TOOK THE TIME TO TAKE A SHOT AT THIS ONE. TIM Trouble codes: 171 (o2 lean), 1166 (o2 system). |
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| 1994 Mitsubishi Mighty Max 2.4L Pedal hight to low VIN: JA7LS21G7R I still don't know why things whent so wrong. I did put a new Mitsubishi cable in and the pedal was better. Still low but customer was ok with it. She call me about 5 day later to say still working fine. I would say all fixed. Thanks to all that Helped. |
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| 2002 Oldsmobile Alero GL 3.4L security light VIN: 1G3NL52E42 Customer did not come back for repair. All replies suggested the ignition lock cyl. and or sensor around lock cyl.. Some pointed out that water intrusion around fuse box could be an issue. Also possibly the bcm could be at fault. Thanks again for all the help.... |
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| 2000 Volkswagen Jetta TDI 1.9L oil pan VIN: 3VWSP29M91 Thanks for all the help, we just put a oversize self threading in and all is well customer will contact us on 1 week before next oil change and we will order a new pan and install. The new plug don't look to bad but better safe than sorry. |
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| 2000 Volvo C70 2.3L closing VIN: YV1NC53D6Y Hi and thanks , we tried adjusting the micro switches but no go. So this one is going to have to the dealer. Thanks again |
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| 2004 Volvo XC90 2.5T 2.5L Cluster/SRS VIN: YV1CZ59H54 From the responses I received, most suggested issues with the CEM module. Especially an issue with water leaking in from the windshield into the CEM wiring. We reset the codes and let the customer take the vehicle. We have not heard from them since. Thanks... |
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