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Professional Automotive Repair Technical Discussions for January 3, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for All Makes and Models
| Help Request | Answers | |
| 2000 Cadillac Catera 3.0L Misfire, MIL Lamp on VIN: W06VR54R8Y car has code po171 lean condition scaned oxygen sensor bank1 sensor 1 reading over 1000 and when you rev it up and let off of gas three different cylinders show missfire then smooths out are these bad for intake gasket leaks i have never worked on one of these... Trouble codes: P0171, P0300, P0303 |
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| 1984 Chevrolet C20 Suburban Custom 7.4L spark VIN: 1G8GC26W0E Truck came in with the complaint of no start under "cold" conditions. Pull distributor cap off 1 inch..turn key and truck will start everytime. I know it sounds strange. But any help would be greatly appreciated. |
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| 1986 Chevrolet C10 Suburban Custom 5.7L Cuts out, dieseling VIN: 1G8EC16L6G Customer came in because the truck would "diesel" when shut off. It had an edelbrock carb on it that was fairly old. I adjusted it and reset the timing and took it for a drive with the customer. We both agreed that the problem was gone. A week later he calls a... |
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| 1991 Chevrolet Lumina 3.1L Poor Idle Quality, Hesitation, Misfire VIN: 2G1WL54T1M pull the car in the shop, sounds like its running on 4 or 5 cylinders, open the hood and it will smooth out, drive 30 miles its fine let the customer take it and it acts up. we did get it to act up once while the scope was hooked up, the pattern was normal, ho... |
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| 1997 Chevrolet Blazer 4.3L Frame, body VIN: 1GNDT13W7V Hi there, I have got a S-10 Blazer that is making a popping or cracking noise in the front of the vehicle while moving and turning from side to side. The noises happen on both sides of the vehicle as if something is shifting back and forth on turns. Say you ar... |
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| 2001 Chevrolet Silverado 1500 4.8L Differential VIN: 2GCEK19V71 Vehicle came in for noise in the front differential. A visual inspection and test drive was performed to confirm customers complaint. The truck has the transfer case selecter handle on the floor. When truck is in 4x4 HI there is a sound the same as a rear diff... |
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| 1994 Chrysler New Yorker 3.5L stays in 2nd VIN: 2C3ED46F0R car must be driven for about 1 hour, shut off and restarted,then goes into limp mode and sets code 52 and sometimes code 54. when this occurs OTC 4000 enhanced shows switched voltage 0, other times 13.8. input and output sensors and tps still read correctly an... |
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| 1995 Chrysler New Yorker 3.5L Poor Idle Quality, Surge, Misfire VIN: 2C3HC46F1S Hello all! This is a 3.5L eng. It runs VERY bad, will barely idle. Plugs are black. Both o2 sensors read damn near 0 volts, so the adaptives are very high, like +25 %! I have ckecked cam timing,compression,fuel pressure, all ok. Has anybody see something like ... |
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| 1990 Dodge Daytona 2.5L No Start VIN: 1B3XG24K7L Hey folks i hope you can help me with this one. Customer brought in this car with a list of things to check out. car ran but not well into the shop acted like it had a miss. I found coolant in the oil and replaced the head gasket timing belt,waterpump,battery ... |
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| 1993 Dodge Caravan 3.0L No Start, Poor Idle Quality, Cuts out, Misfire VIN: 2B4GH2537P Hi fellow IATNers, Got A Wierd one here. Vehicle Came In With Coolant Loss & Small Head Gasket Leak. Vehicle Ran Well Even With Leaking Head Gasket. Replaced Head Gaskets, Sent Heads to Machine Shop For Service, They Replaced Valve Stem Seals & Some Valve Work... |
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| 1996 Dodge Caravan 3.0L Hesitation, Stall VIN: 2B4FP2S3XT Hello fellow technicians. Yesturday a customer brought in his '96 Dodge Caravan that would not start. After he towed it in, we attempted to start it up with no luck (engine cranked just fine). I then scanned the computer and extracted 4 codes: P1491-- Manufac... |
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| 1997 Ford Explorer XL 4.0L No Start VIN: 1FMDU32E2V This vehicle was towed in with a no start condition.Owner said he drove home and parked overnight,next morning its no go. Engine turns over fine but no injector pulse and no spark,fuel pressure good and constant. Checked for codes and got P0603,internal CTRL m... Trouble codes: P0603 (Internal CTRL module KAM error) |
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| 1998 Ford F-250 Lariat 5.4L timing chain VIN: 2FTPX28L6W Hello fellow techs,well i'am starting the year off on a bad note,trying to find and fix this noise in this ford.we had to point out to the customer the noise we heard when you start up this truck.the alternator was replaced 1 month ago and the customer doesn't... |
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| 1998 Honda Passport EX 3.2L cam timing VIN: 4S6CM58W2W what I have in front of me is a engine with the right valve cover off and timing cover off low compression on the right bank only and what looks to me as the exhaust cam is out of time. all the timing marks for the belt and for the cam to drive gear look corre... |
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| 1999 Honda Passport EX 3.2L Check Engine light VIN: 456CM58W6X Check engine light came on for egr code, I replaced egr valve and cleared codes. Customer drove vehicle for approx 20 miles and check engine light came back on with same egr code. No driveability problem before or after replacement of egr valve. Trouble codes: P0401 |
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| 1988 Mercury Grand Marquis LS 5.0L No Start, Surge, Misfire VIN: 2MEBM75F9J car will run fine cold, once warm will start to misfire and die, will not restart, using a spark tester i learned that it loses all spark. let it sit for a couple of hours and will restart, swaped ign module and coil using known good ones, checked all wiring. ... Trouble codes: 14 (erratic ignition signal), 18 (spark timing incorrect) |
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| 1987 Porsche 944 2.5L chain tensioner VIN: WPOAA0948H Dear Porsche friends, we are rebuilding 16 valve porsche engines for racing and club sport. In the past I saw a advertisment for the PLASTIC GUIDE RAILS on the camshaft chain tensioner, apperently someone made them out of BRASS. I called, Windward, AutoAtlant... |
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| 1995 Toyota T100 3.4L gas leak VIN: JT4VD12E0S Customer came in a couple of months ago with a fuel leak at tank. Found bottom of tank pushed in after removing plastic shield around bottom half of tank. Shield looked OK but figured it to not be a high speed impact. New gas tank was redesigned & had to buy n... |
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| 1997 Volkswagen Passat GLX 2.8L ignition switch VIN: WVWFE8375T this car comes in with a nostart. if you connect a new ignition switch the car will start and run fine, last time i replaced the lock cyl and housing also, not about a week later the car is back with the same problem, no crank nothing comes on, install another... |
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| 1994 Volvo 850 2.4L Cuts out, Stall VIN: THISENGINE I got this car and I replaced the engine and after three days it was acting up. It would die out and there would be no power and the [...] reads "lean". I am trying to figure out if the mass air flow signal to the computer is analog or digital. I tested it ... |
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Fixes & Summaries for All Makes and Models
| Fix/Summary | Answers | |
| 1990 Buick LeSabre Custom 3.8L Stall VIN: 1G4HP54C9L hi team well i finally seen what the customer was talking about car was brought back to me and it was loaded with codes 15,21,23,41 and codes concerning trans. shift the car stalled several times with me on test drive but then it decided to run normal just a... |
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| 1992 Chevrolet Lumina Euro 3.1L MIL Lamp on VIN: 2G1WN54T6N Thanks to all who replied, nearly ever repley lead to the EGR valve port partialy plugged. Pulled egr valve found port carbon up used speedo cable on a drill to clean out, car works great now. Trouble codes: 32 (EGR system). |
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| 1995 Chevrolet Cavalier LS 2.2L instrument cluster VIN: 1G1JF5246S thanks for all the replies, it turned out that the instrument cluster microprocersor was bad and that the orange wire that supplies power to the pcm was corroded and falling apart in the wiring harness underneath the radiator. |
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| 2003 Chevrolet Silverado 1500 4.8L Battery VIN: 1GCEK14VX3 Sorry for the delay,my son in law needed the truck and I just checked it out this weekend.Thanks to all that replied,and as I thought, all agreed checking parasitic draw on this vehicle is done as usual.As Tim [...] and others stated,make sure enough time h... |
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| 2001 Dodge Ram 1500 Laramie 3.9L Hesitation, Cuts out, Misfire VIN: 1BHC16X61S This truck is fixed. It was confusing because there was 3 problems. I don't think the customer was forth right with all the information when I talked to him about what happened. Here's what I found. The truck had original tune up parts. #1 plug wire was bad.... |
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| 1998 Ford t bird 3.8L cooling fan VIN: 1FABP64R9K after finding syst. diag found the high side a/c switch shoted and demanding hi fan spead all the time |
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| 1999 Ford F-150 Lariat 5.4L head VIN: 1FTRX18LXX Happy New Year! Thanks to everyone for talking me out of pulling the cab, or the engine. This job is time consuming but not impossible, I just assumed that the length of the head bolts would not allow us to get the heads off but only one bolt needed to stay in... |
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| 2004 Jeep Wrangler X 4.0L Upshift light VIN: 1J4FA39S04 well as it turns out the only fix is a piece of elect tape, thanks to all who took the time to reply |
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| 1985 Mercedes-Benz 300CD 3.0L fuel, temp gauge and seat belt light VIN: WDBAB53A2F Thank you all for your help!!! It turned out to be a ground problem with the gauges. I removed the instrument cluster and found a broken ground tab. The tab is for the gauges mentioned, the gauges are mounted on a fiberboard. Where the speedometer and the fibe... |
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| 1990 Mercury Cougar XR-7 3.8L coolant fan VIN: 1MEPM62R5L i would like to thank everyone for there help i have tried all sugestions and coulld not get it to work if anyone else has any wiring diagrams on this please send if you can i am at a loss with this one oncce again thanks to everyone that replied |
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| 1991 Mercury Capri 1.6L no power/ idles grea VIN: 6MPCT01Z8M hello everyone, everything ckd out ok, thanks for all you help, the car needs a computer, cusomer declined and is just going to park the car |
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| 1994 Plymouth Voyager SE 3.3L main bearings VIN: 2P4GH5R6R6 Thanks for all the help most said to find the bearing with the tab or lock whitch ever it is called.I ordered the bearing form the dealership and it had the tab and all is fine .It may not have made any difference but i feel moore confident about it. Well wort... |
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| 1992 Pontiac Grand Prix SE 3.1L Poor Idle Quality, Cuts out, Stall VIN: 1G2WJ21T7N Thanks for all the help i received. I made all the tests that were submitted to me, but none fixed the problem. I almost fixed the problem by accident...!!! When i verified the master harness i disconnected the A/C pressure switch. After all the verifications ... |
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| 1995 Porsche 911 Carrera 3.6L MIL Lamp on VIN: WPOAA2999T We finally located the OBD2 connector next to the center console. We used our Snap On scanner and were able to pull 4 codes out. Two were for missfire detected and two said undocumented. We checked plug wires for tightness,cleared codes and road tested. So far... |
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| 1997 Saab 900 S 2.3L Unknown VIN: YUS2356026 The Tech II scanner told us that there was no input signal from the trans to the TCM. Input sensor was ok, but the green wire from the sensor plug to the first gang plug was broken. Repaired wire and car shifts perfect. |
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