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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 10, 2008
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Open Help Requests for All Makes and Models
Help Request Answers
2001 BMW X5 3.0i 3.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: WBAFA53561
This BMW X5 came in for an interior door handle repair with no running issues. Car has been sitting for a couple days while we wait on parts. Now upon starting the car it won't idle. Starts fine but immediately stalls. One can keep it running by opening the th... Trouble codes: P0102
1987 Buick Electra Limited 3.8L Extended crank time VIN: 1G4CX5130H
This vehicle has an extended crank time when cold, or after its been setting for a couple of hours. It has spark and fuel pressure when the problem occurs. Other wise it runs great. It also seems to have a longer than I think it should crank time even after se...
1998 Cadillac Eldorado ESC 4.6L Stabilitrak VIN: 1G6EL12Y5W
This vehicle exhibits unwarranted Stabilitrak engagment while driving. This mostly occurs while turning left about 25 MPH, however it will also occur while driving straight under light acceleration. Sometimes the "STABILITY ENGAGED" message appears on the HUD,...
2001 Chevrolet Express 2500 5.0L Hesitation, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1GCFG25M21
help! we had the trans. rebuilt about 1 week before this problem started. the van is loaded heavy but since the c.e.l came on it has lost power and fuel mileage. we have checked for vacum leaks and any unmetered air entering the engine. we also replaced the f... Trouble codes: P0101
2003 Chevrolet Malibu 3.1L noise VIN: 1G1ND52J03
good morning gm techs need help here/// this malibu has a rattle sounds like it is coming from l/f but it almost sounds like a dash or something under the hood rattle// when i drive low speeds over bumps it rattles never can here it when i stick my head out th...
1999 Chrysler LHS 3.5L Automatic Temp. Control VIN: 2C3HC56G5X
Any help on this one would be appreciated. Customer came in with complaint that A/C was inop. Testing revealed that ATC system is working in reverse. Hi is cold and Lo is hot. Checked ATC system for codes and found a #23 Blend Door Feedback Failure. Replaced B...
2005 Ford Focus ZX5 2.0L trans-axle VIN: 3FAFP37NX5
there is a wining noise in transaxle when coasting. noise goes away as soon as the vehicle is under load. has any one had any experince with the ford focus trans axle making noise? my thoughts are pinion bearings. if this is problem can it be repaired in the c...
1993 Lincoln Mark VIII 4.6L air ride VIN: 1LNLM91V5P
both air struts lose air within a 3 hour period. not very familiar with this system so any help will be appreciated. I checked for five volt ref at ride height sensors ( it's there) and also for voltage change at signal wire ( go from 1.5 to 4.7 when moving se...
1997 Pontiac Sunfire GT 2.4L No Start VIN: 1G2JD12T7V
Hi I have a no start, the PCM will not energize the relay wich powers the fuel pump and the injectors. Fuses are ok and tried used PCM. Am in the process of checking power and grounds to the PCM. Will check ign switch and post update. Does anyone have other id...
1993 Subaru SVX LSL 3.3L abs
Hi All, I have a subaru svx that has a abs warning light on.I have infomation on the previous model with the abs ecu under the seat, but this car does not have this, I have done all the prelimanary checks(sensors, relays etc) but what i need is information reg...
1987 Volvo 244 DL 2.3L Nox VIN: YV1AX8846H
Hi everyone, anyone who has done emissions work done on an older volvo 240 (1987-89) knows that the car will most likely fail for high Nox, by alot. Done the usual, top engine cleaning, slightly colder heat range plugs, coolant flush, MAF adjustment, ect.. Any...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2000 Chevrolet Silverado 1500 4.3L Hesitation VIN: 1GCEC14W6Y
Thanks for all the help. I was able to get it to act up and make a movie on the scanner. At 45 mph, during a hard acceleration tps @ 85%, the maf reading 15.55 gram/sec, both o2 dropped to 10 mv. fuel trim jumped to 199, and inj pulse went to 22.55 ms. So I kn... Trouble codes: P0171, P0174.
2002 Chevrolet Silverado 1500 4.8L MIL Lamp on VIN: 2GCEK19V82
Hi Guys: Thanks to all eight that replied. Most said that the charcoal canister had loose charcoal that cloged the purge valve. I removed the purge valve and shook it over a white piece of paper. About 10 pepper sized particles and a slightly larger rectanglar... Trouble codes: 443 (purge valve performance).
2005 Chevrolet Aveo LS 1.6L Poor Idle Quality, Hesitation VIN: KL1TD52695
I received a few responses, and it seems that the problem is caused by the valves in the cylinder head not seating. There is a TSB out on this. It involves replacing the valves with a revised design...way expensive for a Aveo, especially when it's a hail damag... Trouble codes: P0106 (map sensor performance).
1998 Chrysler Sebring JX 2.5L Starting VIN: 3C3EL45HXW
Well about everyone appears to have had problems with starters and or fuel pumps, but we had disabled fuel system and ran vehicle on a motor vac machine to eliminate fuel pump as being issue. also starter did not pull enough amperage to blow fuse, we would pul...
2001 Dodge Ram 1500 Laramie 5.9L Poor Idle Quality, Misfire VIN: 3B7HF13ZX1
Got ok from customer to pull heads off for inspection. Found the valve seats were bad as many of you have stated. Machine shop repair the heads and did a valve job. Vehicle runs good now and customer is happy with repairs. Thanks for all the replies.
1999 Ford Explorer Eddie Bauer 4.0L abs VIN: 1FMZU32E1X
thanks for the help i thought i remembered something about the front speed sensors and the replies confirmed it replaced both front speed sensors and all is well
1999 Ford Ranger XL 3.0L Poor Idle Quality, Stall VIN: 1FTZR15V8X
Well this was definitly a learning experience!! We went through all of your suggestions. After drying the plugs and cylinders, we got the vehicle running and drove it for 10 miles to warm it up, then let it set overnight. In the morning the plugs w...
1999 Ford Explorer XL 4.0L MIL Lamp on VIN: 1FMZU34X6X
Thanks to everyone who replied. We followed your suggestions. smoke tests, fuel trims, movies, ect. I`m not sure if it was the OEM plugs. Or the removing of the throttle body and a cleaning of it. But no check engine light. No codes after a week of driving. Th... Trouble codes: P0171 (Lean Bank 1), P0174 (Lean Bank 2).
2000 Ford Excursion Limited 6.8L No Start, Cuts out, Stall, theft light flashes VIN: 1FMNU43S2Y
sorry it took so long to reply back,but i wanted to make sure this truck is fixed.Well it ending up beeing the pcm causing the problem.Replaced the pcm and had it flashed by ford and the truck has been gone for two weeks.THANKS FOR THE HELP FROM ALL OF YOU. Trouble codes: B2103 (pats transceiver ckt fault), U1262 (slp data fault), J1850 (bus), P1100 (maf snsr intermittent).
2005 Ford F-150 XL 5.4L Misfire VIN: 1FTPW14594
As far as I can tell from what I read and the replies that I got (all great, you can read them and thanks) there were problems with these early plugs. Even the dealer wasn't sure which ones to give me, they changed the plugs, so I think it was a batch of bad p... Trouble codes: P0174, P0305.
2006 Ford E-450 Super Duty 6.0L No Start VIN: 1FDXE45P76
Because I work for a transit company, head office decided to fight it out with Ford and sent the vehicle to a local dealer. Last I heard, the dealer was pulling the engine. I thought that I should close this help request and when I find out what Ford has don... Trouble codes: P2614 (cmp signal output circuit/open. refers to cam sensor), P2617 (ckp signal output circuit/open. refers to crank sensor).
1996 GMC Sonoma SLE 4.3L MIL Lamp on VIN: 1GTCS19X2T
As most of you said, the aftermarket cat converter is not the way to go...so after emptying this guys wallet further, I installed the oem converter and viola! its fixed!!! thanks for the help, sorry it took awhile to close this, I got tied up putting an engine... Trouble codes: P0420 (catalyst efficiency).
2005 GMC Envoy Denali 5.3L MIL Lamp on VIN: 1GKET63M35
1996 Lexus LS400 4.0L Excessive Emissions, Poor Fuel Economy VIN: JT8BH22F2T
I would like to thank all of you who replied to me. The problem was solved when we replaced both of the ignition coils. thanks for those who recommended me to replace the coils. The vehicle ran perfect after the replacement. I recommended my customer to ge...
1988 Mazda 323 1.6L carpet drivers side VIN: JM1BF2321J
Of the five replies Jason from Washington said to check the vapor barrier I had looked at it before but this time I felt behind the front corner of the door panel and I could feel the plastic was not in place when I took off the door panel there was a water ma...
1997 Mitsubishi Galant ES 2.4L MIL Lamp on VIN: 4A3AJ56GXV
ground and power to and from the 2 computers are ok but the transmission doesnt shift, its always at 3rd gear all the time. wee took the car to a transmission shop, they hooked up their transmission scan tool and found out that the tcm is in limp mode. they t... Trouble codes: P1600 (serial communications problem).
1971 Nissan 240z 2.4L parking brake cable. VIN: HLS3028272
Sorry it took so long to get the car back in the shop,we have been very busy. Just about everybody hit the nail on the head when they said check the grounds !! We found three problems on the ground side of the car. #1 negative battery cable eye was loose where...
1970 Oldsmobile 442 455CID Poor Idle Quality, Misfire VIN: 344670M371
i apologize for being so long in responding to all the great help i received, this car was a fill in job and we were given all the time required by the owner. the answer to the problem was a bad carburetor, the idle circut and the main metering circut were all...
1998 Plymouth Grand Voyager SE 3.3L Climate Control, door locks VIN: 1P4GD44G8W
Thank you for the help. As many of you told me, all the climate control needed was a reset procedure to recalibrate the system after disconnecting the battery. As for the door locks, Harold [...]'s suggestion to disconnect the battery cables and short them...
2002 Pontiac Grand Prix SE 3.1L transmission VIN: 1G2WK52JX2
Sorry it took so long to get back to you I ended up R&R trans With low miles used trans. I replaced epc selnoid in the new trans before installing it. The trans. works great thanks for all the help
1987 Porsche 911 3.3L low power, no rev VIN: WPOJB0930H
Hello, And thank you to all who replied. Unfortunately, i have to admit a stupid mistake. The problem was a rag in the turbo intake tube. It was a easy mistake, as the opening to the tube is turned away from you. The rag was sucked right down to the turbo. It...
2001 Volvo S40 1.9L Stall, MIL Lamp on VIN: YV1VS29531
It was suggested I check/change the CTS, look for air leaks, check (inspect/clean/lube) the idle speed controller, and check/replace the fuel pressure regulator. I checked and double checked each item. I did not change the CTS. I put the old MAF back in. T... Trouble codes: P0102 (MAF signal too low).
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