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Prev Professional Automotive Repair Technical Discussions for March 25, 2006
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Open Help Requests for All Makes and Models
Help Request Answers
1996 BMW 318i 1.9L water pump ?
Hi fellow techs. Sorry about no vin but I am posting this from home. Customer complained about overheating in about five miles of driving. Coolant level was low, lots of small bubbles coming from bleeder screw, coolant overflowing from radiatot with bleeder sc...
1984 Cadillac DeVille 4.1L Excessive Emissions, Hesitation, Poor Fuel Economy VIN: 1G6AM478XE
Car came in barely running, found plugs black with carbon cleaned, found CTS plug broken replace sensor and plug found that O2 would not go above 600mv no matter what, replced. Now O2 never goes below 700mv no matter what even with PCV pulled off the hose, in...
1989 Chevrolet S10 Blazer Sport 4.3L No Start VIN: 1GNCT18Z7K
Well, it finally happened. I just bought this Blazer, did some fixing on it & plugged my MT 2500 in just for the heck of it. While the engine was running (perfectly) I moved the scanner from inside the truck to under the hood and I bumped the hot lead of the s...
1997 Chevrolet Corvette 5.7L climate control VIN: 1G1YY22G9V
This corvette has split climate control for the driver and the passenger. The passenger side gets cold A/C , aprox. 55 to 60 degrees. The driver gets only aprox down to 75 to 80 degrees. The blend door for the driver side is not closed all the way. Whe...
1998 Chevrolet Camaro Z28 5.7L preignition VIN: 2G1FP22G3W
Hi Guys customer complains that he gets preignition always on acceleration, hot or cold. The vehicle has had oil changes regularly and nothing else. We checked for codes and there were none. Fuel pressure in specs. The problem slowly got worse starting approx ...
2003 Chevrolet Impala LS 3.8L 3800rpm limit VIN: 2G1WH55KX3
i have done everything i can think of to pinpiont the problem , i am thinking it needs to be flashed, the internal mode switch only comes on a few models and it is not adjustable , im sure if it sees park or neutral it will limit fuel or rpms !!! has any one s...
1999 Dodge Caravan 3.3L Air Bag VIN: 2B4FP2533X
Hello , Does anybody have any insight to diagnose or repair chry. air bag systems? The light comes on randomly,I have used OTC Genisys to pull code [DRIVERS SQUID CIRCUIT OPEN] but I cannot find any information other than hints of repair areas from Alldata. No...
1989 Ford Mustang LX 5.0L speedometer VIN: 1FABP44E7K
this car has a t-5 man. trans. a 140mph speedometer. it used to be a police car. the cable was broken at the trans and at the speedo head. i replace the cable. my friend says the needle bounces around quite a lot. could it be the head sticking a bit and needs ...
1991 Ford Explorer Eddie Bauer 4.0L Surge, Cuts out VIN: 1FMDU32X0M
This is probably the simplest mixture feedback system Ford ever produced but i'm stumped.After hooking up the battery backwards, the customer says it doesn't run right. What i've found is bank 2 injectors are not getting a ground signal from pcm...almost a sur...
1994 Ford Crown Victoria LX 4.6L Idle Increases VIN: 2FALP74W2R
Customer states when car comes to stop and idling in gear it will intermittantly idle up about 150-200 rpm. It may happen many times a day or not for 2-3 days. Code 634 MLP sensor voltage high keeps coming back after car has acted up and I have seen voltage at... Trouble codes: 634 (Manual Lever Position Voltage High)
1997 Ford Escort LX 2.0L Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FALP13P9V
This vehical come in mid december, in with a bad misfire and stumble,with a check engine light flashing. This car had a cylinder 4 misfire. I did tune-up, which consisted of motercraft plugs,fuel filter, borg-warner plug wires, new ignition coil and p.c.v. val... Trouble codes: P0302, P0304 (cylinder 4 misfire detected)
2002 Ford Taurus LX 3.0L lights VIN: AB675T6412
Well when i shut the ignition off the head lights stay on and i'm just not sure where to start looking the only way to shut them off is by disconecting the battery but as soon as i reconect the lights are back on again.Sorry about the vin its wrong i dont have...
1989 Honda Prelude 2.0 S 2.0L clutch master cylinder VIN: 2T18R32E23
Hi all.I'm going to be replacing the clutch master cylinder in this Honda in a few days and I would like to know if there is anything unusual I should be aware of.Specifically,are there any special proceedures for bleeding the clutch master and slave cylinder ...
2000 Jeep Cherokee Sport 4.0L driveline VIN: 1J4FF48S7Y
Jeep has driveline vibration staring at around 45 mph & getting worse with speed.We have replaced transfer case , front& rear diff. bearings ( some bad bearings where found in both ), front axel u-joints , rebalanced both driveshafts , switch tires & wheels fr...
2000 Lincoln LS 3.0L no dive or reverse VIN: 1LNHM86S3Y
customer went on long drive all was good ,car sat for 3 houres after that customer went to put the car in drive and it wouldn't go forward or revers. hook it up to scan tool and retreived code p0840 reverse pressure switch,wondering if any lincoln guys out th...
1998 Mazda 626 DX 2.0L Stall, Misfire VIN: 1YVGF22C8W
thank u in advance. this car came in with a stalling problem and misfire. found the air intake gasket to be leaking.after replacing the gasket the car still runs very rough. replaced spark plugs and wires still no change. after the car is warmed up it will sta... Trouble codes: P301, P0302, P0303
1999 Pontiac Montana 3.4L airbag VIN: 1GMDXO3E6X
hello all ive got this 99 pontiac here with code B1040 but alldata wont load in the pc right now just wondering if someone would give me the code desception so i dont have to wait for the computer repair guy to fix this pc. thanks for the responses in advance
1998 Volkswagen Cabrio 2.0L No Start VIN: 3VWAA81E2W
car cranks good ,has power & ground to coil also ref signal. checked output from engine speed sensor within specs. checked injector pulse ok. will get a single spark on starter dissengagement intermittent. cleaned grounds under battery tray , slight corrosion.... Trouble codes: 17834 (evap canister purge regulator open)
1996 Volvo 960 2.9L Coolant Sensor VIN: YV1KS9608T
This well-maintained vehicle had the engine light come on. Upon startup, very rough idle for 1-2 minutes, then smooths out and runs fine. DTC P0115 is for the coolant sensor. According to factory manual there are a couple coolant sensors (1 in the thermostat h...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1994 BMW 525i 2.5L fuel gauge VIN: WBAHD6323R
Hello BMW Techs The messages that I received advised to ohm check the fuel sending unit first and make sure there is not an open, which we did and found to be OK, then the next thing to check was the instrument cluster circuit board,we did inspect it visually ...
2000 BMW Z3 Roadster 2.5L air bag system VIN: WBACH9346Y
Thanks to everyone who responded. Charles [...] reccomended a reset tool make by Peake. I bought two tools and an adapter which allows the tool to be connected to 2001 and newer BMW's. These are code readers and reset tools only, one was for SRS and the other w...
1990 Buick Century Custom 3.3L Stall, hard start VIN: 3G4AH54N0L
Well replies were split between ECM & ICM . So going by the ICM code in the computer I recommended an ICM . Customer requested a used unit(due to age) so we got one ,installed it and works fine . It sure did not act like an ICM though. Usually they come in & t... Trouble codes: 42 (history code EST Circuit).
1999 Chevrolet Silverado 1500 4.8L tcc VIN: 1GCEC14VXX
Thanks to everyone who replied and/or took the time to read my request. I decided to follow the suggestions of Jerry and Martin who recommended the Transgo shift solver kit. Unfotunately the customer needed his truck back before I could install the replacement...
2001 Chevrolet Silverado 2500 HD LS 6.0L Accessories VIN: 1GCHK23U51
Thanks for the replys. As many said it is going to be a challenge to get these power windows to work without changing all the cab wiring system with a BCM to match the windows. I will probably try to do standard relays and work around the BCM. Thanks again, Is...
1998 Dodge Grand Caravan SE 3.3L inop. cluster, ABS lite on VIN: 1B4GP44G1W
I will take a moment to thank all who responded in a timely manner as I digested all the replies. Initially the following Monday I ordered a BCM (Chry. #[...]) from the dealer as I felt due to reading as many posts from the archives concerning this particu...
2000 Dodge Ram 1500 Van 5.2L overdrive VIN: 1B7HF16Y9Y
i want to thank everyone for their replies. when i asked for help had already replaced cooler lines including check valve,radiator(had only one cooler on it),pcm,transducer,solenoid pack,fan clutch,checked all wiring,antifreeze was full,even test drove five ti...
2000 Dodge Dakota 4.7L thermostat VIN: 1B7GG22NOY
Well I got the truck back from the customer, he is having no problems overheating with the gutted t-stat installed. I took the advise of the majority of your suggestions which was flushing the heater core or bypassing it. Even though I had excellent heat with ...
1994 Ford Explorer XL 4.0L Need to time CMP
Below is the detail of the procedure. The part that I was overlooking is that in step 4 there are actually two lines on the plastic window; a short one on the left and a longer one towards the middle. Upon closer inspection I spotted the short one. Much than...
1996 Ford E-350 Econoline 7.3L Hesitation VIN: 1FDKE30F4T
thanks for the help, still havent found the pedal but if anyone finds one let me know Trouble codes: 0221 (throttle switch b malfunction).
1998 Ford F-150 Lariat 4.6L speedcontrol VIN: 1FTZX1868W
well sorry for the delay but this truck had a bad pcm no vss signal comeing out for the cruise module replaced it and its fixed thanks for the responses it was helpful
1999 Ford Expedition XLT 4.6L Misfire, MIL Lamp on VIN: 1FMRU1867X
Almost everyone agreed that it was probably plugs and wires. And it was! I guess I couldn't see the forest for the trees. Special thanks to Charles from Louisiana. He told me how to see individual cylinder missfires using global OBD2. Ford does not have a mi... Trouble codes: P0300.
2003 Ford Focus ZX3 2.0L Stall VIN: 3FAFP31393
Based on input here along with our conversation and approval from the customer- he wanted us to replace fuel pump, DPFE and IAC. We told him this car could go through its intermittent dying spells at the worst possible times and may never do it for us here- so... Trouble codes: 1709 (Clutch position switch out of range).
1999 GMC Savana 1500 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 47W28E6545
hi all recieved 4 replys and 3 were for fuel whiched checked out good fuel pressure at spec and plenty of it coming out with the fault code i keep getting i'm hinting towards a cracked intake vac. is also low but no time to pull it off and have exceeded the cu...
2003 Honda Accord EX 3.0L ac VIN: 1HGCM66503
I removed the condenser/drier assembly. Dislodged pellets from the drier were restricting flow in both the drier and the condenser. I ordered both components and I am confident this will solve our problem. Based on the nature of this failure, I am also confide...
1983 Mercedes-Benz 380SL 3.8L Excessive Emissions, Poor Idle Quality, Surge, Stall VIN: BS45S5DDB0
Thank You for all the replies. The Fix was a new computer. The only clue was the inability of the original ECU to correct fuel mixture correctly. We were able to aquire a none good computer for a test. Fuel control remained consistant after closed loop was ata...
1990 Mercedes-Benz 300SEL 3.0L heater VIN: WDBCA25E4L
We fixed our problem and others kept creeping up on us. Our problem was that we had cool/cold air comingout of the heater vents. When we shut the car off and had the key on the air was hot/warm Many suggested the mono valve and that did take care of our proble...
1999 Mercury Cougar 2.5L rotors VIN: 1ZWFT61L3X
Thanks for all the info, guys. There were two separate problems on this car. The pull was not really related to the brakes, it was a worn ball joint and worn control arm bushings. I replace the brake hoses and put premium brake rotors on the car, and hand torq...
1993 Oldsmobile Cutlass Supreme S 3.1L loss of power VIN: 1G3WH54T5P
Many thanks to all that responded!It ended up that I was losing spark from one coil.I tried another coil with the same results.I then replaced ignition module and crankshaft sensor-problem solved.I was fooled by the way the car ran when coil dropped out-it def...
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