Automotive Technicians Technical Discussion and Fixes for Apr 3, 2004

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Open Help Requests for All Makes and Models

	Help Request	Answers
	1987 Chevrolet Camaro Z28 Iroc-Z 5.7L rough idle/no power The customers complaint was while driving it started to run rough and no power.Turned car off did his business then went to go home and was hard to start, cranked fine but hard to fire up and idled rough. Check ECM for codes none the data showed O2 bias rich ...	View
	1994 Chevrolet Camaro 5.7L code 84 vehicle came in with sluggish acceleration.test drove and discovered no trans shift.checked codes and found dtc 84(3-2 downshift solenoid circuit.inspected fuses.r&r pan for inspection.checked resistance on all solenoids.checked internal harness.checked switch...	View
	1997 Chevrolet Venture LS 3.4L readiness monitors VIN: 1GNDX03E8V help!!! this van came in with ses light on...po300 and o2 sensor heater code. cleaned injectors...replaced 2 of them and replaced the upstream 02 sensor because the heater circuit was open. now the van runs great but the o2 heater monitir will not run. all upd...	View
	1996 Dodge Ram 3500 5.9L intermitent no upshifts VIN: 1B7MF36C7T I have this 96 ram 3500 deisel that came in with loose, slipping gear changes, removed trans and sent out to be rebuilt, came back and reinstalled, now customer complains that intermitently the trans will not shift, when this happens he stops, backs up, then t...	View
	1999 Dodge Ram 3500 Van 5.9L Hesitation, Surge, Cuts out, Misfire VIN: 2B5WB35Z6X Greetings from the desert! This van is a dedicated vanpooler carrying 12-15 passengers approx. 120 miles/day, 24/7, 99% highway.. Problem is an intermittent bog at light load when hot. Very noticable reduction of power. Comes on suddenly like an electrical p...	View
	1999 Dodge Stratus 2.5L Timing Belt replacement VIN: 1B3EJ56HOX Tought I would help my big heaping plate of hamburger helper Hands. The Timing belt replacement is going well except for the rear Cam Plastic cover. It won't come off without removing the Power Steering bracket I have removed 2 of the suspected 3 or 4 bolts bu...	View
	1995 Jeep Grand Cherokee Laredo 4.0L Accessories VIN: 1J4GZ58SXS I have this 95 jeep cherkee , the wiper has no delay, we replace wiper motor, the dealer said replace the motor, I think this vehicle have a wiper delay module , but I don't know where it is. could anyone help me solve this problem. John	View
	1997 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1J4GZ58S0V Got a toughy for you Mopar guys, I don't claim to be a Chrysler expert but am an average tech... And this one won't leave the shop. It came in for poor performance last fall, got new cap/rotor/pulgs/wires, etc. Also found vacuum low, checked timing chain and i...	View
	1996 Mercury Mystique GS 2.0L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1MELM6539T Every once in a while this car will ether start hard or start then stall and ack like it is flooded. It will then run rough and usually set a code for #1 misfire and sometimes #1 and #4 misfire. I have already replaced plugs, plug wires and ignition coil. Fuel... Trouble codes: P0301	View
	1999 Mercury Villager Estate 3.3L rear drums brake VIN: 4M2XV11T1X this is my brother's mini van.he bought this used few month ago.it never notice anything in local driving. he go for trip often. when he go for long drive. driving may be least 45 minute or more rear brake start acting funny not both wheel either right or left...	View
	2000 Nissan Frontier SE 3.3L No Start, Cuts out, Stall VIN: 1N6ED26Y6Y Hello all, First time help request,long time member.This vehicle is blowing the #13 fuse in the pass. compartment fuse panel.(labeled "Eng. cont./Ign").I Don't have access to any wiring diagrams other than a chilton book I bought.The vehicle was towed to a de...	View
	2000 Oldsmobile Intrigue GL 3.5L MIL Lamp on VIN: 1G3WS52H9Y Hi Olds Techs. I did some front end work and brakes on this Intrigue. The customer said the Service Engine Soon light had been on for a while. I scanned using a Snap On scanner, and got the P0410. Cleared it and checked around under the hood. I thought the wir... Trouble codes: P0410 (Secondary AIR Problem)	View
	2000 Volvo S40 1.9L cruise control VIN: YV1VS255XY Hey guys, Its been a long time since I've posted, but this is a good one. I hope someone has seen this before. Our customer's complaint is that the cruise control shuts off some times in windy conditions or up long hills. This makes no sense to us. We are unab...	View

Fixes & Summaries for All Makes and Models

	Fix/Summary	Answers
	1998 Audi A8 Quattro 4.2L torque convertor VIN: WAUBG74DOW Many thanks to all guys, who took their valuable time to respond. It turned out, that (wow) !! crank has excessive play back and forth, that over time helped destroy pump in the trans (the old pump's gears were cooked togeteher and to the housing). Our friends...	4
	1995 BMW 325i 2.5L Surge VIN: WBACB3325S After checking the idle speed motor and coolant sensor, we made a call to the owners son who revealed that this vehicle had been in a flood. The customer since has pulled the car and has no more money to spend on it, so for now, this case is closed. Mant thank...	5
	1987 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR1434H I would like to personaly thank everyone who responded to help me on this vehicle.The crank sensor fixed the no-start.Customer needed the vehicle for the weekend so I haven't been able to check out the high idle. I'll let you know when I get the car back and f...	12
	1990 Cadillac Seville 4.5L theft &air bag VIN: 1G6KS5334L Ok. the car got fixed. buttttttttttttt not buy me. After 4 weeks, trying could not fix this thing. Customer towed it to some house mechanic next day he called me to tell me the car is fixed and running. Go figure. I used to think that if I can not fix it no bo...	8
	1994 Chevrolet S10 Blazer Tahoe 4.3L Surge, Cuts out VIN: 1GNDT13W7R Hello all,After many tries we found the problem with this blazer.There is a ground strap coming from the body that is attatched to the drivers side cylinder head.i found it and reattached it to the head and the engine runs perfect now.Hard to believe a ground ...	5
	1995 Chevrolet C2500 5.7L tach/speedo VIN: 1GCFC24K1S Thanx to all who replied. Most said bad ignition switch feed to circuit. Right on the nose.	12
	1998 Chevrolet S10 2.2L stop lights VIN: 1GCCS19410 I going to call it a fix. If I hear differantly I'll let you know. I received 8 messages on the topic. A couple mentioned the trailer wiring, but I don't think that was the problem. It had a tailor made harness, very short, with original matching elect. connec...	8
	2000 Chevrolet Malibu 3.1L Anti-Theft light on I have not fixed the car. The driver likes the idea that the anti-theft system is disabled. He wants to leave it as is. I hooked up the remote starter and everything is fine other than the anti-theft light is on all the time. I believe that the BCM is wacky ...	8
	1996 Dodge Avenger 2.0L Stall VIN: 4B3AU42Y1T Thanks to all who took the time to respond to this post.The key to diagnosing this car was to look at both cam and crank waveforms simultaneously to compare 'sync'.This is what the computer uses to monitor cam timing.I dual traced cam and crank signals and sna... Trouble codes: 1390 (Cam Timing Off One Tooth or More).	3
	1991 Ford Explorer XL 4.0L low power VIN: 1FMDU33343 It gives me great pleasure to close this help request. I was baffled by the low vacuum and wondered if it was a result of the problem or the cause of the problem. Compression was normal-150 psi across the board. Ballancer had not slipped. There is no cam senso...	16
	1996 Ford Escort 1.9L engine VIN: 1FTA1234I1 The fix was simple , thanks to Charlie's detailed reply... turned out the firing order pictured in the Chilton manual 1993-1997 was 90 degrees off. made notation in my manual so this won't happen in the future. follwed Charlies firing order from connector loca...	4
	2000 Ford E-250 Econoline 5.4L no power i appreciate all the responses. my shop was under alot of pressure to get this done & i ended up send it to the local ford dealer & they said converters were bad & it needed a maf sensor. so we had them do the work & all is well. but my maf readings are the sa... Trouble codes: P0172 (rich bank 1 computer could could not lean out), P1605 (dlc meep alive memory 12v batt. supply problem).	12
	1998 Lexus GS400 4.0L abs module VIN: JT8BH68X6W Thank you for all your help. I found the left front wheel sensor was damaged. but did not ever give a code. Changed the wheel sensor and have'nt heard any complaints. thank you again for your responses.	3
	1999 Lincoln Town Car Cartier 4.6L MIL Lamp on VIN: 1LNFM83W8X Hi,Members First a special thank to Nick [...] - from these members i got a very useful advice and as they all says - to use a scan tool and look after a few sensors like CV solinoid,VMV,FTP - and what I found ... Trouble codes: P0442 (Evaporative Emission System Leak Detected Small leak).	4
	1986 Mazda RX-7 1.3L No Start VIN: JM1FC3317G it's fixed and it's outta here!!! i got 3 replies via e-mail and 1 over the phone...but our problem was not solved. the problem was that the salvage yard sold us a wiring harness from a later model donor. after checking a couple of wiring schematics from mitch...	3
	1995 Mitsubishi pajero 2.5L no 1-2 shift hi guys, thanx for the replies. some of you directed me to the mitsubishi dealer, but unfortunately that's not an option in this area. anyway, the vehicle is out of the shop. we did open the trans and went trough it carefully and did find some damaged parts,as...	3
	1997 Mitsubishi Montero Sport LS 3.0L brake pedal VIN: JA4LS31P9V I have a mobile service and I am waiting for a chance to go back to my customer. The fault is mine alone and my customer and I have have a good relationship so he is patient. The email from the other members were very helpful: 1. they mentioned about the stu...	15
	1993 Nissan Quest GXE 3.0L engine VIN: 4N2DN11W7P I have been asked to close this request because two weeks have passed and I have no fix, because we have been swamped with new work and have had to put this problem on the back burner until we can catch a breather. I have received some good responses and will ...	5
	1998 Nissan PATROL SGL 3.0L Cooling Systems we send head to and block to mahine shop. the engine was rebuilded. the problem is gone the casuse was a bad radiator before the accident.	3
	1999 Oldsmobile Alero GLS 3.4L No Start VIN: 1G3NF12E1X Sorry for this very late post. The car has not returned for service. I talked with the customer and she stated that the car didn't start once in the last month. I will post any finding when and if the car returns. I received ten good replies. The first one was...	10
	1997 Pontiac Sunfire GT 2.4L Poor Idle Quality, Stall, Misfire VIN: 3G2JD12T5V Thanks to all of those who replied. One of you out there got it right. We inspected all of the ignition components - ok. Checked vacuum and found less than 5' Hg and it was not steady. Checked for a massive vacuum leak - none found. Suspected valve timing inco... Trouble codes: P0300, P0302.	17
	1996 Volkswagen Jetta GL 2.0L engine VIN: 3VWRA81H8T wow !!!talk about a fast response.i got 15 replys in 10 hours.thanks for all the help.all 15 said it was the head gasket put on upsidedown.the problem was a small check valve in the oil filter housing.we called the local vw parts dept to see if they could help...	16
	2000 Volvo S40 1.9L MIL Lamp on VIN: YV1VS2559Y Steve recommended a VEMS update, sent the car to the Volvo dealer, they said they had already done the update and recommended a new timing belt, CVVT hub assembly, timing belt idler, timing belt tensioner, oil pump seal kit and intake gasket, dont know if this... Trouble codes: P0014 (Camshaft Reset Valve Incorrect Signal).	5

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