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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 10, 2005
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Open Help Requests for All Makes and Models
Help Request Answers
1994 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52L6R
Vehicle was towed in for a no start problem. I have checked waveforms for cmp, ckp, and icm signals all test good. I also checked to make sure wires L and M have ground, N is 10V, and P is battery voltage. Any help I can get will be greatly appreciated. Thank ...
2002 Buick Century Limited 3.1L Magnasteer VIN: 2G4WY55J02
Hello, I have this Century with Magnasteer Variable Assist Steering (VES). At low speeds, the steering is erractically over-assisted or normal. The ABS and Brake lights come on sometimes when this occurs. Current code was c1241 - VES circuit malfunction Hist...
1994 Chevrolet Astro CL 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1GNEL19W5R
this post is for a friend of mine and it is his wifes car. this car was running rough and now it bearly runs. when you go just off idle car stumbles boggs real bad and then if you hold it floored it will semi over come and will run like it is missing. there is...
2003 Chevrolet Express 3500 6.0L A/C Belt Tensioner VIN: 1GBJG31U63
This tensioner for the A/C belt is bottoming out making a terrible noise on decel. We replaced both last week because the tensioner had an obvious gouge in it from where it had been bottoming out. Shipped van, everything was great, A/C pressures looked okay an...
1992 Chrysler New Yorker Fifth Avenue 3.8L Cuts out, Stall VIN: 1C3XV66L9N
Hey guys, I can't believe I need some help on a 3.8, but here goes. This car will die sometimes and crank-no start. Has no spark. Sets codes for ignition driver circuits, sometimes all 3 or sometimes one at a time. If you back probe a test light into the coil ... Trouble codes: 43 (igntion circuit problem s 123)
1998 Dodge Ram 3500 5.9L No Start, Stall VIN: 3B6MC3666W
HELLO EVERYONE... I have this diesel in here that started with a high idle itermitant. Then it went to surging idle and had a tps code. We replaced the tps and same thing happened... Customer took the vehicle to a different repair facility and they told him th... Trouble codes: P0238 (map volts too high), P0237 (map volts too low), P0123 (tps volts too high), P0122 (tps volts too low), P0121 (tps/ map not in sync), P0222 (idle validations too low)
1986 Ford F-150 5.0L no start VIN: -921478127
fuel pump replaced ign coil replace plugs and wires replaced
1991 Ford Explorer XL 4.0L oil leak VIN: 1FMCUZZX3M
we have this explorer that we resealed the engine. this car has low miles the lady hardly drives it.but for some reason we can't get the front seal to stop leaking we tried dealer seals and after market seals, it only leaks after a long drive it won't leak whi...
1992 Ford Aerostar 3.0L abs VIN: YE345KE321
hi tech. i have this aerostar every time i start vehicle step on brake the abs lite stay on code 4 (open ground reset switch) check fluid and connection ok. please help me check all data no help at all.
1995 Ford F-150 Eddie Bauer 5.0L Hesitation, Surge, Cuts out, Misfire VIN: 1FTEF15N6S
I have a 1995 F-150 with the 5.0. It recently came in the shop with a misfire problem. I repaired misfire by doing a major tune up. (plugs,cap,rotor,wires,fuel filter,and fuel/air induction service.) Customer was happy for about a week. Came back in with check...
1997 Ford F-150 Lariat 4.6L wiper operat VIN: 1FTDX186XV
This very clean pickup has a wiper isue, first the symptoms. The wipers do not work in any delay mode, in the slow speed setting they are on delay, in the high speed setting they are on high and the washers work as they should . If the wipers are on any interm...
1998 Ford Contour LX 2.5L MIL Lamp on VIN: 1FAFP66L9W
codes reset after maf replaced, present before repair also, disconected bat to reset baro reading, it was at 151hz after test drive, i don't do enough fords to remember what's normal for my area, but seems low to me. freze frame showed P0171 set at idle. Trouble codes: P0171 (lean bank 1), P0174 (lean bank 2), P1519 (imrc)
1996 Geo Metro LSi 1.3L no power VIN: 2C1MR5297T
the car lacks power. i have checked everything possble i can think. i advance the timing to 12-14 degress has more power but still not like it should. replaced fuel filter;has good fuel pressure;no computer codes; have checked timing marks on gears; exhaust ba...
1998 GMC Yukon SLE 5.7L Hesitation, Cuts out, Misfire, bucks and backfires VIN: 1GKEK13R6W
Customer brought this in for when he accelerates from a stop it falls on its face and if you keep holding it to the floor it will pop,pop,pop,sounds like from air cleaner.Before it came to us he put in a new TPS,new ac sparkplugs,and even tried a used mass air...
1999 GMC Sierra 1500 SL 5.3L No Start VIN: 1GTEK19T7X
this truck has a intermittent no start security lockout.the computer is turning off the fuel injectors because it thinks the pass code is incorrect. the key lock cylinder is original.this is the 3rd GM vehichle to come to my shop with this pass code or pass lo... Trouble codes: P1631
1994 Jeep Grand Cherokee Limited 5.2L vehicle info center VIN: 1J4GZ78Y0R
when i hit the brakes the VIC go dimm and the side maker lights come on
1994 Land Rover Range Rover County LWB 4.2L air ride VIN: SALHC1344R
Ride control buttons inop (all 3 ride height selector {button} lights on). Automatic is only selection working ,sometimes ride height is low but will correct itself while driving. Dealer found no codes.Thanks in advance. Shop I work for does not have email or ...
1992 Mitsubishi 3000GT SL 3.0L No Start VIN: JA3XD64B8N
Hi all you Mitsu guys car came in on the tow truck cranks - no start
1994 Mitsubishi Montero SR 3.5L No Start VIN: JA4MR51M2R
vehicle came in not running we found coolant in the exhaust no oil in crankcase and low compression. we installed an reman long block new plugs and wires turns over and will not run sounds like timing is off however i have repatedly checked this
2000 Oldsmobile Bravada 4.3L Misfire VIN: 1GHDT13W4Y
Vehicle came in with a intermittent misfire under loead and when cruising. Tuned it up and cleaned injectors. Added cleaner to the tank and returned to customer. Came back one week later, never having improved. We test drove with the scanner hooked up and watc...
1994 Plymouth Voyager SE 3.0L Trans control fuse VIN: 2P4GH4538R
This vehicle intermitantly will blow the 15 amp trans control system fuse and when that happens the speedometer will stop working and the van will go into limp in mode, there will be 2 trouble codes set I can't think of the numbers and have the codes written d...
1994 Pontiac Grand Am SE 2.3L No Start, Poor Idle Quality VIN: 1G2NE5535R
vehicle has extended cranking, will start once it picks up oil pressure and run but the idle flucuates. it will never stall but if you turn the ignition off once it warms up then it cranks but won't start. it then will have no rpm reading, no injector pulse, n... Trouble codes: 35 (idle speed error), 65 (injector circut fault)
2000 Pontiac Grand Am SE 3.4L Misfire VIN: 1G2NF52E51
PLEASE HELP ALL YOU GM TECHS... I'm looking at this Pontiac Grand AM for a friend and I've been out of the GM loop of quirks and giggles for the last 5 years. Anyway. It set a code PO300B in history for a cylinder misfire. Monitoring misfire status with my Gen... Trouble codes: P0300
2001 Pontiac Firebird Formula 5.7L headlamp motor VIN: 2G2FV22G71
This car came in with a verified problem that the headlight doors open and close whenever the power door locks are triggered open or closed with the remote transmitter.Any information would be greatly appreciated. Thanks in Advance
2001 Toyota Land Cruiser 4.7L VSC system VIN: JTEHT05J21
The Land Cruiser has a problem with the VSC. At slow speeds while turning the wheels will lock up and skid. U-Turns are most noticiable. I have tested the vehicle and found that by disconnecting the ABS computer, the problem goes away. I also am getting 14 cod...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 BMW 740iL 4.4L MIL Lamp on VIN: WBAGH8342Y
Thanks for the response on this one, several suggestions were to reseal intake manifold even though I had performed smoke test twice with no sign of a leak. But several suggested replacing mass air sensor, I thought this vehicle was running ok until I installe... Trouble codes: 026 (Mixture adaption limit reached bank 1 system lean).
1985 Chevrolet Camaro Berlinetta 5.0L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 1G1FP87E9F
well guys this was one of those cars you just had to take apart and look at one day at a time...after pulling my hair out ..and replaceing a few good parts..the problem was an after market alarm system half way installed...finding my way into the wiring harnes...
1992 Chevrolet K1500 Cheyenne 5.7L Ping VIN: 1GCEK14Z2N
Hello Thank you evertone for your replies. It seems as though there is no silver bullet. We havn't found a more sensative EGR valve or a more tolerant PROM, so for now we will just settle for the reduced base timing. The ESC is working fine, We beleive that ...
2000 Chevrolet Cavalier Z24 2.4L Poor Idle Quality, High Idle Speed VIN: 1G1JF12T1Y
I received several replies, most pertained to system grounds and wiring concerns. I have found that when the vehicle is in the failed condition(high idle speed) ltft goes to -15 with stft switching between +5 & -5, with a TP% of 4 (with the same 0.53v TPS volt...
1988 Dodge Ramcharger 5.9L No Start, Stall VIN: 3B4HW12Y8J
Just about the time you get up to speed and dependent on the OBD2 or other connection to tell you what to do, you have to change your thinking when you get a pre 90's car! Since this no start condition car would give me a restart with a squirt of ether, even i...
1991 Dodge Ramcharger 5.2L speedometer VIN: 3B4GE17Y2M
took car to dealer and they said that the head is bad after replacing both speed sensor and the abs sensor on the rear axle. customer could not afford to do repairs at this time so we are at a stand still until then
1995 Dodge Stratus 2.4L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1B3EJ46X9V
Thanks to all 11 who replied. I got advice t check vac it was 18 in hg and a smooth idle,advice to use top end engine cleaner which i did,advice to recheck the plugs and wires which were ok,and to watch for a sticking egr which was new and wasn't sticking. Aft... Trouble codes: P0300, P0304.
2001 Dodge Grand Caravan ES 3.3L b1698 VIN: 2B8GP44G71
We ended up unplugging the radio ,trans control module,pcm and the battery,hooked everything back up and so far we have drove many miles and customer said so far everything is working fine.Thanks for all the help!!!
1992 Ford Ranger Custom 3.0L abs module VIN: 994LPA9058
thank all tech with out you guy i can not a get job done i found bad connection at brake master cyinder, repaired, rechecked everything good.
1996 Ford E-350 Econoline Club Wagon XLT 5.8L hcu VIN: 1FBJS31H5T
Thanks all for the speedy replies. Dwayne from Nova Scotia, Rick from Indiana and Jacob from Califonia all said to bleed the system normally, then take it out and do a few ABS stops and bleed it again. That worked and I'm happy, as is the customer. I know I'll...
1990 Honda Accord LX 2.2L Starting VIN: 1HGCB7558L
Thank you to all who replied. Most said to replace the main relay, but I had already done that. I should have mentioned that I had already verified timing, ect. The fix was the computer located under passenger side carpet. One of the posts woke me up, and I fi...
2005 Honda Accord Hybrid 3.0L radio VIN: JHMCN36425
Sorry it took so long to close this request. Customer deceided to take car back to Honda at some point. I'll add more info when I hear from them.
1997 Infiniti I30 3.0L Misfire VIN: JNKCA21D9V
thanks to all that responed michael from ca. was dead on with the harness problem. i unbolted the harness from the shock tower and stripped the tape back and found my #4 coil driver (gray wire). bingo! there it was just a couple of inches from the mounting b... Trouble codes: 1320 (missfire).
1999 Mercedes-Benz E320 3.2L MIL Lamp on VIN: WDBJF65H9X
Gentleman, Several of you hit it perfectly...we had a defective new MAF right form Mercedes. When the vehicle finally returned we tried another new Maf and the problem was solved. Many thaks to all who responded, Jim Trouble codes: P0170 (Bank 1 self adaptation at limit), P0173 (Bank 2 self adaptation at limit).
1992 Mitsubishi Montero LS 3.0L No Start VIN: SONJOO3496
thank all tech .i found a bad distributor.you know what i have to replace 3 times in order to get the right one .what a aftermarket . Trouble codes: 22 (crank angle sensor circuit problem).
1999 Plymouth Grand Voyager Expresso 3.3L Dash,wipers,rear wiper,turn signals all innoperati VIN: 2P4GP44R2X
Well, I don't have this beast fixed yet. I have inherited this vehicle from my customers because it has been a money funnel to them since day one. Dennis [...] helped along the way in a huge way. His detailed information was priceless to me. I WILL be finnishi...
2000 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WPOAA2997Y
i am going to go ahead and close this because i'm getting email from iatn to do so. i decided to replace the EVAP valve at the throttle body. i tested it a couple times and it would pass when i did but this was definitely intermittent at best anyway. one of th... Trouble codes: P0446.
1996 Saab 9000 CS 2.3L No Start VIN: YS3CD68U0T
Thank you for all replies. Most of you recommended replacement of the ignition cassette. I am still waiting for customer to decide as this is for a used car lot. The owner is on vacation, and I will not have an answer for a week or two, and I am running out of... Trouble codes: P0300 (Random/Multiple cylinder misfire detected), P0340 (Cam position sensor A-Bank 1 circuit malfunction).
2000 Toyota Echo 1.5L Surge VIN: JTDBT1233Y
Well, i just can say 'thank you very much', i received a lot of responses , although the fuel pump is not exactly on its specs ,it was not the responsible for the surge , in this case a very dirty MAF was the culprit, some electrical contact cleaner get the ti... Trouble codes: PXXXX.
2000 Volkswagen Jetta TDI 1.9L starter VIN: 3VWRF29M8Y
Thank you to all who e-mailed me back , The customer has decided to take the vehicle to a import shop, we checked everything we could and still could not pinpoint the problem, and suggested he take it to a specialist. As soon as we get word of what was wrong w...
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