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Prev Professional Automotive Repair Technical Discussions for July 1, 2007
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Open Help Requests for All Makes and Models
Help Request Answers
1995 BMW 318is 1.8L Excessive Emissions, Poor Fuel Economy VIN: WBABE5319P
this car has a co level at increased idle of 3.8%. and it should be around 0.3%. and there's a lack of power when's the third day and it's getting on my nerves...anyone had this problem before? help!
1992 Buick Century Custom 3.3L Cuts out, Stall VIN: IEKM38J49J
hi all i need some help on this buick it stalls esp. in parking lot maneauvers, when it is cold,it does it when warm but not as much there is no codes and fuel is not the issue i have replaced the iac and the mass air flow sensor with no change i even altered...
1996 Buick Skylark Custom 2.4L No Start, Stall, Misfire VIN: IG4NJ52TST
This problem started as a surge at highway speeds,nothing was really found so I replaced the fuel pump which was at the low end of specs.180 miles later it was towed in running on 2 of the 4 cylinders. I replaced the coil housing and one coil it fired right up...
1955 Cadillac Fleetwood 75 331CID 2-3 upshift
Thanks in advance for any help I can get. I have not serviced or rebuilt one of these cast iron hydramatics since the 70's. This one works good except for the harsh 2-3 upshift with light throttle. With WOT 2-3 upshift is OK. Adjustment of tv rod to specs make...
2001 Chevrolet Tahoe 5.3L compressor VIN: 1GNEK13TX1
We've installed all the new parts listed above, after flushing the system for 2 hours. The truck blowed cold for 3-4 hours, turned the vehicle loose to the customer, only for him to return shortly after, system blowing hot. After checking the truck, found that...
1999 Ford Taurus SHO 3.4L Hesitation, Poor Fuel Economy VIN: 1FAFP54N6X
Hi, this is actully my car, not a custome car. Ok I have had this car for about two years and has had this issue scence I purchused it. Ok the car has poor fuel economy and intermitinly hesitates. I found the pre-cat 02's were lazy and replaced them and gained...
2000 Ford F-450 Super Duty Lariat 7.3L engine VIN: 1FDXF46F0Y
We got this truck cause he is a friend of the owner. I normally DO NOT do this but boss wants to investigate source of noise.Not alot when idling but as soon as you run down the road it gets louder and even coasting.Sounds kinda like a lifter/rocker. I have te...
1988 Jeep Cherokee 4.0L fan VIN: 1JCMR7845J
i've resolved the cooling issue to a point that the electric fan won't come on. i checked the temp. at the sensor which is about 150f. according to standard the sensor closes at 192f. it will overheat if i don't jump the fan to run. can someone help me out wit...
1993 Jeep Grand Cherokee Laredo 4.0L speedometer VIN: 1J4GZ58S1P
Thi9s Jeep has an inop speedometer. It is an early production (06/92) truck. checked accordin to Alldata.There is virtually no test procedure on early model(2 wire) vss.Teste continuity between the white/orange wire at speed sensor to instreument cluster, vehi...
1997 Mazda MPV ES 3.0L No Start VIN: JM3LV5233W
This makes no sense to me. I hope someone has seen it before. Customer states that she was driving and got about a mile from home and the van lost power and then died. The fuel guage was on empty, (teenage son borrowed car last night) so she thought she had ru... Trouble codes: P0401 (02 Heater Circuit), P0170 (Fuel trim malfunction), P0302 (Missfire Cylinder 2), P0305 (Missfire Cylinder 5), P0335 (CKP Sensor Fault)
2000 Mitsubishi Eclipse GT 3.0L Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 4A3AC84L0Y
Car will start and run ok, hot with A/C off car will stall, may surge first and then stall as well. cel is illuminated with cam and crank sensor codes, have aquired factory plugs, wires, a replacement distributor, valve cover gaskets and spark plug tube seals,... Trouble codes: P0325, P0326
2003 Nissan Murano SL 3.5L MIL Lamp on, not reving up VIN: JN8AZ08T93
this vehicle came to our shop on a wrecker .the vehicle starts but would not accelerate . the vehicle is moving very slow / or not at all in drive or reverse . all the lights on the dash are on , abs ,air bag ,ses .we do not have any of the vehicles in the cou... Trouble codes: P1612 (nats malfunction), U1001 (can com circuit), U1000
2005 Porsche Boxster 2.7L Engine Swap
We have a request to replace the engine in this 2005 Boxster with a 2005 997 (911) engine 3.8 liter I like to know if anyone has ever done this and if it can be done with the regular Boxster instead of the S model, we know that Ruf does it with the Boxster S m...
1996 Toyota Camry LE 2.2L MIL Lamp on VIN: 4T1BF12K0T
I have this Toyota that sets this code P0135, Alldata, Shopkey have no trouble trees or any kind of diagnosis. I can't find the Oxygen Sensor heater circuit in a wiring diagrams, I've checked the archives no luck. Any Toyota specialist has any ideas I'm listen... Trouble codes: P0135 (Heated Oxygen Sensor bank 1 Sensor1)
1999 Volkswagen Jetta GLS 2.0L No Start VIN: 3VWSC29M9X
My cousin has a 99 1/2 vw jetta. I know nothing about VW's his neighbor helped him jump start it. they installed the cables then touched the ends together to see if there was any spark. I told him that was a dumb thing to do. Now the car will not start. He ins...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 BMW M5 5.0L battery VIN: WBSDE91070
We found the draw on the battery and eliminated it by unplugging connector X400 in the trunk on the left side. Still don't know if it affects ant other systems, other than the car phone. The TSB shows this connector, color and number of pins are the same. But ...
2003 Buick Rendezvous CXL 3.4L awd VIN: 3G5DB03E12
Well, we'll call this one a fix. The pump clutch valve was the problem and the fix. The service information on the AWD system is very sketchy at best, and that's being kind, but somehow the computer computes/guesses/thinks it knows the rear differential temper...
2000 Cadillac DeVille DHS 4.6L Unknown VIN: 1G6KE57Y4Y
Unbelievable is what iATN is. Thank you for all the responses, they were all right on, as well as the one about my not being a sponsoring member. My boss was very impressed as well. My membership will be updated soon. Thanks to all.
1986 Chevrolet Camaro Z28 5.0L Excessive Emissions, Poor Idle Quality, Hard Start VIN: 1G1FP87F0G
Some of you nailed it, Fuel pressure regulator fixed it. The last several times I checked the vacuum line did not leak but this last time after hot soak fuel came out the vacuum line explaining the gas smell and flood condition. It pays to recheck sometimes. ...
1991 Chevrolet V3500 Silverado 6.2L engine VIN: 1GCHV33N3M
Hi guys and girls.The problem ended up being leaking injector(s).Know what made it sound like more was because the timing was to far ahead in the first place and adjusting the pump to line up the marks only advanced it further making it worse.I retarded the pu...
1999 Chevrolet Blazer 4.3L Transfer case VIN: 1GNDT13W6X
I replaced the switch (new) and the module from a working blazer and still having same problem. Removed encoder and manual shifted transfer case, seemed a little hard to shift but could get it to shift. Did find some corrosion on module connector which might b...
2002 Chevrolet Venture 3.4L fan does not come on VIN: 1GNDX13E2Z
To all. Thank you again for every things. I found out that the temperature on scan tool read 230 degrees than the low fan come on. But the gauge read about 3/4 hot. The cooling fans come on at 230 degrees like all of you said. It works. Thank you. wish al...
1997 Chrysler LHS 3.5L Steering VIN: 2C3HC56FXV
The car is fixed and back with owner. I had a couple replies that said be sure washer at bolt connecting inner tie rod to rack was not left out and a couple that suggested binding ball joints or tie rod ends. These were checked and found to be OK. Most other ...
1991 Dodge D350 5.9L gauge VIN: 1B7ME36C6M
Thank you all for your time. I have recieved four replies and they were all good. Bill and Marty hit it right in the head. The problem on this truck was that it was overcharging the system. The voltmeter gauge would flicker at idle continuously and if a ampmet...
2002 Dodge Grand Caravan EX 3.8L Restraint System VIN: 2B8GP74L72
The problem appears to be that the VIN Information doesn't match the VIN programed in the PCM. This problem appears to only relate to the SRS system. This van has not had the airbag systems operating for some time, mainly because the clockspring has been broke...
1991 Ford F-350 Custom 7.5L Poor Idle Quality, Surge, Stall VIN: 2FTJW36GIM
Well, we had a lot of good replies. From replacing spark plugs, checking EGR, Fuel pumps, and checking for vac. leaks. The fix was resetting the base idle and clearing the Keep Alive Memory. Its been a few weeks now and it is fixed! Thanks to all that replied!...
2001 Ford F-550 Super Duty XL 7.3L No Start VIN: 1FDAF57F41
Well, I can't [...] this one a fix but I did learn a couple of things. It did have a failing CPS. We had installed a new one due to the related history service code and the code never did return. Put the old one back in and code was back within an hour. As far ... Trouble codes: P0340 (Cam position sensor), P0603 (Internal module KAM error.).
1998 Honda CR-V EX 2.0L Stall VIN: JHLRD1863W
Thanks for all the help and you lead us in the right direction. This car had a recall open for the ignition switch. The customer was quite happy with us and will be back. Thanks again George
1996 Infiniti I30 3.0L Stall, MIL Lamp on VIN: JNKCA21D7T
Customer did not have car stall again or the check engine lite did not come back on again. Cleaning out iac motor did prevent the stalling. Why lite is off, I don't know. Thanks for all the help. Trouble codes: P0400.
2004 Jaguar XJ8 4.2L Surge VIN: SAJEA71C04
This one still surges 150-200 rpm even after a Motorvac,disconnecting EGR(no lean/rich codes and normal fuel trim values) and doing a Transmission reflash/reprogram. With our Autologic and assistance from Diagnos UK I was able to install the lastest update fo...
1998 Mercedes-Benz C280 2.8L defroster VIN: WDBHA29G2W
Hi guys thanx for great help... I've learned alot..warm air from defroster is normal I"ve learned and probelem with aux. fan was a broken ground..IATN is absulatelly priceless ..thx.a million again.
2000 Mercedes-Benz E320 3.2L srs VIN: WDBJF65J1Y
All the replies that suggested a bad sensor in the passenger seat were right on. The resistance info was great as well. A new sensor fixed this one. Thanks to all.
2001 Mitsubishi Montero Limited 3.5L 4 wheel drive VIN: JA4MW51RXI
Thanks to Robert,Mario and Jerry who took the time to reply to my post. Robert was on track with his suggestions as it did indeed have many problems buy they are all solved now. First thing was to check the vacuum solenoids in the engine bay and these checked ...
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