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Prev Professional Automotive Repair Technical Discussions for July 9, 2005
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Open Help Requests for All Makes and Models
Help Request Answers
2001 Audi TT Quattro 1.8L cam VIN: TRUWT28N21
AMU Engine, 1.8 turbo 17748, Camshaft Position Sensor (G40) / Engine Speed Sensor (G28): Incorrect correlation. The cylinder head came with new camshafts, intake and exhaust. Installed new cyl. head assy., ok. When vehicle is at idle, fault code 17748 will...
1991 BMW 735iL 3.4L bmw VIN: 0000000000
1998 BMW 740iL 4.4L No Start, won't even crank VIN: WBAGJ8321W
Vehicle came in needing to be jump started every time. We jump started it, put it in the shop, put charger on it, and sadly put the charger on high which I believe is a mistake for these vehicles. Later when we wanted to start work on the vehicle it will not c... Trouble codes: 148
1986 Buick Regal 3.8L Suspension
Hello guys. This is my own personal "toy". I have rebuilt the front suspension with some decent parts. Tubular upper control arms with spherical bearings instead of rubber or poly. The lower control arms have Global West Del-A-Lum bushings. It's a solid al...
1994 Chevrolet P30 7.4L hydro-boost VIN: 1GBKP37N7R
This motor home PS/Hydro-boost brakes have been noisey for a few months and pushes foamy ps fluid out of the reservoir when not running. It might steer a few times but when brakes are used both quit and it cannot be steered again. I expect it is the power stee...
2002 Chevrolet Express 1500 4.3L Excessive Emissions, Poor Fuel Economy VIN: 1GCFG15W12
Morning Techs This van came to us with these two codes, did the usual- check for other codes, parameters checked out, air filter. Nothing jumped out at me. After a little research I found bullentin on the CPI getting varnish build up and causing poppets to dr... Trouble codes: P0172, P0175
1999 Dodge Grand Caravan SE 3.3L serpentine belt VIN: 2B4GP44G3X
Replaced the serpentine belt approx. one year ago with a daco polycog. Customer indicated with in six months the squeaking began again. If anyone has experienced this problem the help would be greatly appreciated.
2002 Dodge Ram 1500 Truck 4.7L a\ci VIN: 1D7HU18N12
I do not usualy do A\C work so please bear with me. The truck is coming in next week & I need a heads up. A\C system is cooling fine but only out the drivers side. Passenger side vents blow hot air. Customer says it happened suddenly. All the other controls wo...
1994 Ford E-250 Econoline 5.8L Cuts out, Misfire VIN: 1234E57H9R
I am trying to help a new tech but this one has us all stumped. You can feel a slight quiver when bearly touching the gas in gear, when driving it feels like a plug or wire arcing to ground. It has new plugs, wires, cap and rotor, we have ck all sensors and gr...
1997 Ford Taurus GL 3.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1FALP52U7V
I have scanned, all those before mention codes.. AC most likely low on 134a I don't need help with that issue. I can hear what sounds like a vacuum leak. Ran out of time so I have not put a gauge on in and have not looked at all the the data when I scanned it ... Trouble codes: P0300 (random/multi mis fire), P0171 (system to lean bank 1), P0174 (system to lean bank 2), P1131 (insuff switching control valve sensor / lean), P1151 (ho2s b2s1 insuff switching lean mean), P1469 (ac cycle period low)
1998 Ford Mustang GT 4.6L compressor VIN: 1FAFP42X6W
The compressor on this vehicle will not engage when you turn on the a/c. We have power at the low pressure switch and it goes thur to the high pressure switch. We have ohmed the high pressure switch and thought it might be bad so we replaced it and still no po...
1995 Lincoln Continental Diamond Anniversary 4.6L air suspension VIN: 1LNLM97V1S
I have this Continental with its infamous air suspension system. My customer brought the car in with all four corners fully "down". Using the NGS scanner on the vehicle dynamics module the only code set was for front solenoid time-outs. I can command the air s...
1990 Mercedes-Benz 500SL 5.0L Poor Idle Quality VIN: WDBFA66E2L
This car spent time at two other shops before coming here. When we got it, the idle was rough and the instrument cluster wasn't working. The owner had jumped the car from a charger which damaged the instruments and who knows what else. He told us it ran fine b...
1999 Mercedes-Benz E320 4Matic 3.2L Message on display VIN: WDBJH82F1X
Customer complained that engine cranks but wouldn't start all the time,found code B1000 EIS(Electronic Ignition Switch) faulty.Replaced EIS (incl.all coding)immediatly the Message apeared in the message center "Engine Fan engine electronic"and the radiator fan... Trouble codes: P1181 (Suction fan engine electronic), B1154 (Instrument cluster out put stage short to ground or positive)
1990 Oldsmobile Cutlass Supreme 3.1L front end VIN: 1G3WS51TXL
I replaced transmission three weeks ago now it seems to shake only at a certain times when it kicks into overdrive or when climbing a hill then i kick down the accelarator and it goes away again till it hits overdrive i even put some transmission additive to s...
1994 Oldsmobile Cutlass Ciera 3.1L no shift cold VIN: 1G3AG55MXR
hi guys im not familiar with these cars at all im a vw tech.this car will not go into any gear cold. after a minute or two it shifts fine and goes down the road fine with all gears. it feels like the trans is low on fluid. but is not . i have droped the pan an...
1999 Plymouth Neon High Line 2.0L erratic speedometer VIN: 1P3ES47C7X
vehicle came in w/complaint of erratic speedo operation. we scanned the computer and found no codes nor could we duplicate the symptoms. gave the car back to the customer and within a week it was back with erratic speedo and erratic transmission shifting. once...
2001 Volkswagen Beetle GLS 1.8L MIL Lamp on VIN: 3VWCC21C31
This car has a cel light and a fault code that saying the cam sensor signal is too high. It started right after the timing belt was changed. So we checked the cam/ crank timing marks and the were right on the money. So the power and ground at the sensor were g...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1995 Audi Cabriolet 2.8L engine
Thx again to all who responded. To summarize all of this: Audi recommends replacing engine check valves if you have lifter noises. This worked for me. But be sure to check valley cover for warpage. Audi suggests sanding on a flat surface. While you have the in...
1999 Chevrolet Tahoe LS 5.7L 4x4 actuator motor with out electronic controls VIN: 1GNEK13R7X
Thanks for the help everyone turned out to be a bad connector it the act. motor.
2002 Chevrolet Suburban 1500 LT 5.3L transfer case VIN: 1GNFK16Z42
I was not able to repair the vehicle for several reasons - customer didn't want to get into the wire harness, which is where I think the problem is - I couldn't get the vehicle long enough to verify my suspitions & we have been so busy with paying jobs that it...
1994 Chrysler LHS 3.5L Poor Idle Quality, Hesitation, Stall VIN: 2C3HD56F3R
Thank you to all who replied. It turned out to be the egr valve leakimg without setting a code. It was responsible for low vacuum, hesitation, rough idle, fuel trim way to low, and compression variance. If you have all these symptoms, replace the egr. Thanks t...
1998 Dodge B1500 5.2L sreering box VIN: 1B7HF13YOW
about 50-50 wether to use new vs rebuilt. customer decided to go for a-1 cardone rebuilt because of price diff. was half the price of new from dodge and this one they did not offer in rebuilt. so far he seems to be satisfied
2000 Dodge Durango 5.9L oil pan
I want to thank everyone for their reply's. I did get my uncle and cousins going back to texas last monday. With all the reply's i got, they all said about removing the rear trans mount and engine mount, raising both as much as they would go. I ended up pullin...
1998 Ford E-250 Econoline 4.2L Hesitation, Misfire, MIL Lamp on VIN: 1FTNE2423W
have talked to cust. waiting to see if they want to go w/ repair i believe you guys talking about plug egr ports have the right solution thanks
2000 Ford Focus LX 2.0L super high idle VIN: IFAFP343YW
I was alittle slow to report this one FIXED. I wanted it drive about before I said it was ok. The cable from the cruise control to the throttle was changed. It has been fine for about a month now. Thanks for your help, you guys are the best. Too bad our custom...
1992 Mazda MX-3 1.8L No Start VIN: JM1EC434XN
Thank's to all who replied, we had 5,Luke and Grover got me on the right track. I think I must be over worked or a little brain dead because looking up the information for a Protege will not help with a Precivia, no wonder I could not trace what they were tell...
1990 Mercedes-Benz 300E 3.0L Unknown VIN: WDBEA30D3L
Almost all of you agree that these are not the best systems to retrofit to 134a and that perhaps that should no longer be done anyway. I replaced the expansion valve and swapped oil with pag46 and gained about 5 degrees so that now we have about 58 degree outl...
1992 Mercedes-Benz 300E 2.6 2.6L Sun Roof VIN: WDBEA26D1N
I would like to thank the 8 people that replied with very useful information. After spending literally hours playing, tweaking, lubricating checking rechecking I've had to cut my losses and settle for slightly better sun roof operation. I charge .5 for replaci...
1996 Pontiac Sunfire SE 2.2L growl inl/f area during stop, 30-10km VIN: 1G1NL64W7T
Tkx for all the responces..Most direted me too what i thought it was It was the left-side diff bearing...totally pitted... A couple stated they had replaced the ring/pinion, but was not in this case.. I had ordered in a overhaul kit earlier this week. Dropped ...
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