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Prev Professional Automotive Repair Technical Discussions for April 29, 2007
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Open Help Requests for All Makes and Models
Help Request Answers
2001 BMW 530i 3.0L compressor VIN: WBADL81000
When you turn the AC on , it cools well but after 15-20 min working it no longer activates the compressor coil. Have checked data stream for all temp sensors working properly and showing normal parameters values, checked also compressor coil condition is well....
1999 Chevrolet Corvette 5.7L drive belt VIN: 1G1YY32G0X
This car came into my shop with a p/s leak. replaced p/s pump and belt. After several weeks of driving it returned with a belt noise. I replace both tensioner and idler pulleys on both belts. Noise was still there. I saw no alignment issuse. I check the belt f...
2001 Chevrolet Impala 3.4L No Start VIN: 1G3MASERVE
Ok guys obtained this vehicle recently for self family. 2 times in last month had to leave key in run position for 30 minutes in order for security warning light to stop flashing. When it flashes it wont crank. Alldata (Somedata) had a tsb about possible loose... Trouble codes: 2960 (bcm), 2964 (bcm)
1995 Ford Ranger Splash 3.0L Surge VIN: 1FTCR14U1S
This vehicle bucks and jerks while under load and while steady driving. No check engine light. I checked for proper installation of cam sensor/oil pump drive. Seems as if the cam sensor is disconnected, then problem not as noticeable. Possible timing off. I us...
1996 Jeep Grand Cherokee Limited 5.2L oil presure VIN: Y9TC378046
Hi guys, This 318 was running fine but had just a little lifter noise. I added some mystery oil to try and free up a posible sticky lifter. Within 10 min. the oil presure droped to zero and the engine started to clater. I droped the pan and the pickup was clog...
2003 Jeep Liberty Sport 3.7L MIL Lamp on
Hi all I replaced gas cap and will pass DRB forced evap test all the time even in the morning when it is cold. Passed smoke test, pulled line from intake, purge solenoid not leaking smoke. Car goes out comes back with about 2 weeks later with P0445 large leak ... Trouble codes: P0445 (p0456-), P0456
2001 Kia Sportage 2.0L No Start VIN: 1KGB234626
We have had an interm. no start problem with this thing for a while, now it doesn't start at all. I have no engine light, no injector pulse and ECM isn't grounding main relay. I have checked over and over again the powers and grounds going to the ECM and all a...
1997 Land Rover Discovery SD 4.0L MIL Lamp on, lack of power VIN: SALJY1243V
We had the cylinder heads off becuase of a coolant leak on one of the head gaskets. When we started the vehical, the chech engine light was on and the word code was on the radio. I called the dealer and he gave me a number to rest the radio word code, which he...
1997 Mercedes-Benz E320 3.2L No Start VIN: WDFJF55F2V
Does anyone have any information on how to test the idle control system? There is a control module under the throttle pedal, and in the intake. This engine will run when an alternative fuel source is introduced. (I.e. starting fluid) Will not stay running. Trouble codes: P0171 (Bank 1 lean condition)
1992 Mitsubishi Montero LS 3.0L No Start VIN: JA4GK41S2N
This SUV came in with no spark, no fuel. Knowing the problems with the ECM I started there. I tested the main relay and the wires leading to it. The circuit board was clean so I started pinning the wires coming from the ECM and found some conflicting numbers o...
1995 Pontiac Grand Am SE 2.3L Poor Idle Quality, Misfire VIN: 1G2NE15D2S
this vehicle was brought to me with the complaint, of idles rough and won't stay running. verified complaint, no codes stored. data reading rich and i can smell fuel coming out of exhaust. used stethescope to listen to all injectors, all ticking normal. pulled...
2001 Saab 9-5 SE 3.0L Brake Lights VIN: YS3EF48Z91
Car came in shop with check eng light on p1576 and brake lights on even with car off and key out of ignition.( headlights also )Checked brake light swith with new one. No change, checked harness in trunk and all seems well. Car also has excessive emissions on ...
1992 Subaru Legacy L 2.2L Poor Idle Quality VIN: 92SUBBYTUR
This subby always idles high replaced iac valve ,smoke checed for vac leaks and air leaks in system all is good.I suspect it must be getting excessive air from some where behind the throttle bore.Idle is 1100 to 1500 rpm some times when its hot you can blip th...
1999 Volkswagen Passat GLS 1.8L abs VIN: WVWMA63B2X
the vehicle was towed in with locked up brakes. vehicle owner had replaced pads a few weeks before? not really sure of the timing of that repair. we could do no more than drive it into the shop since the oil pan was damaged by the tow company. so, no road test...
1999 Volkswagen Cabrio GLS 2.0L Tack/Speedometer VIN: 3VWBB81E4X
This VW came into shop with the tach and speedomter not working, codes p0135 p0135, wipers only work on high and Wont Park and an air bag light. The customer said the problems started a few months after the switch was changed. (And doesn’t remember if they all...
2002 Volkswagen Jetta GLS 2.0L no speedo VIN: 3VWSB69M62
speedo quit working pcm had po500 vss circuit, checked power and ground no signal from vss order new sensor vw has in stock install new sensor still no signal re check power and ground and signal line for short, all's good order another sensor. Install and sti... Trouble codes: P0500

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
2001 Audi Allroad Quattro 2.7L upper contol arm VIN: WAUYP54B21
Hi to all, thanks for the replies. What I ended up doing was buying a top of the line Snap On air hammer and with a little drilling and making some custom adapters I was able to drill and hammer the broken bolt out. I was a little worried about breaking the en...
1995 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52L2S
Thank you everyone that replied. iATN wants me to close this help request, so without fixing this yet, I will close it telling you that I ordered the cam spocket, magnet, chain, seals and gaskets and will be fixing my wife's car shortly. Thanks again everybody... Trouble codes: P0341.
1999 Cadillac Escalade 5.7L radio VIN: 1GYEK13R8X
Thanks to all that replied. But, customer pulled truck from me and said he would take to dealer. He told me he would let me know what they found, but nothing yet. I was told power amp power, but I never found a relay. Alldata was no help and a friend at the de...
1994 Ford Ranger STX 3.0L speed control VIN: 1FTCR15U8R
Speed control is fixed,I tried two used amplifiers but did nothing, so I installed a new amplifier and the speed control works again.Had to spend the big money for a new amplifier to get the system working, thanks. Larry
2002 Ford Focus SE 2.0L power steering VIN: 1FAHP34302
I think I found the main trouble, the cause. the return line to the ps cooler on the left side near the horn was leaking. not pouring out just seeping,repaired line and we replaced the rack after it started leaking again, and I know and everyone said, its leak...
2003 Ford Focus LX 2.0L No Start VIN: 1FAP33P93W
when you are diagnosing a vehicle you think you always cover all your basis, never seem to. guess it's nice to have iATN. thought I had checked everything, everything but the valve timing, correct, the tensioner had started to fail and the timing belt had jump...
1998 Lexus GS400 4.0L starter VIN: JT8BH68X7W
Thank you for all the great information. 95% said it was a starter failure. Ordered a Nippodenso starter and a plenum gasket and wasnt that bad to do. Starts like a champ!
1988 Mercedes-Benz 260E 2.6L shift
Thanks to all that responded to my Mercedes problem. Unfortunately my customer has given up on his car and any further work done to it. What I can add to this update is that the transmission fluid and lines were 100% clean and clear of any trash. My best guess...
1994 Mercedes-Benz S350 3.4L motor VIN: WDBGB34E4R
Disassembled engine and found #5 cylinder with excessive wear. Vehicle apparently was consuming oil excessivly before original problem that came into shop for. Customer does not want to fix. Thanks to you who replied.
1998 Nissan Sentra 1.6L Poor Fuel Economy VIN: 1N4AB41D2W
thank u all for your help i did not get to this car yet.
1998 Pontiac Grand Am SE 2.4L MIL Lamp on
hello all, this car still sets a crank sensor code intermittently, the customer has taken the car to see if they can get other shop that worked on it prior to repair it ( it was the same code before ). a couple of replies said to check crank end play, they pic... Trouble codes: P0335.
1999 Pontiac Grand Prix SE 3.1L High idle VIN: 1G2WJ52M0X
Hi guys thanks for all the replies. While cycling the key the Iac would move slightly but it was also intermitant. Finally it would not move at all. At the same time i lost what i thought was the brake interlock switch. Turns out the brake interlock and the Tr... Trouble codes: P0507.
2002 Pontiac Bonneville SE 3.8L oil pressure VIN: IG2HZ54112
thanks to all who replied this is one of those ugh!!! things. the aftermarket lifters were the probleem. not sure if it was a design problem. but non the less we should have matched the parts up better. we ended up tring 1 more after market and same problem, e...
2002 Saturn L200 2.2L Mechanical VIN: 1G8JU54F22
thanks for the help, used a screwdriver to hold tensioner , cranked engine over to build oil pressure
2000 Volkswagen Jetta GL 2.0L Key VIN: 3VWRC29M0Y
Thanks for all the replies. the dealer took us right in the next morning and programmed the key and did not even charge us said that they may need a favor some day, for we have quite a bit of experience w/ Audi's. I use to work for them as a Audi tech and have...
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