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Prev Professional Automotive Repair Technical Discussions for July 30, 2005
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Open Help Requests for All Makes and Models
Help Request Answers
1996 Chevrolet Blazer 4.3L brake pedal feel VIN: 1GNDT13W2T
Hi to one and all, The customers complaint is that on a hard stop the brake pedal feels very hard and the vehicle doesn't seem to want to stop. I noticed that after bleeding off the air reserve in the brake booster by pumping the pedal KOEO, then stepping on t...
1997 Chevrolet Blazer 4.3L No Start VIN: 1GNCS13W5V
please someone help this vehicle was tow-in no start check spark and injector pulse both are good check fuel pressure only had 20 psi replace fuel pump and fuel filter i now have good fuel pressure 65 psi compression test is good i replace the spark plugs the ...
2003 Chevrolet Tahoe LT 5.3L No Start VIN: 1GNEK13Z63
This is my own vehicle. Went to start this morning, fired up and then quit making a wierd rattling noise at the end. Checked to see if there was any fuel pressure at schrader valve and fuel rail. No pressure but the presence of fuel was in the rail. If throttl...
2002 Dodge Intrepid SE 2.7L Timing Chain VIN: 2B3HD46R82
Hello fellow technicians, Recieved this 2.7 liter intrepid from another shop. They replaced the timng chain guides and tensioner. Still receiving a noise above idle similar to chain ratteling in the case. I removed the tensioner and found no O ring on the tens...
1997 Ford Crown Victoria LX 4.6L Top gear VIN: 2FALP74W2V
I must have missed something in putting this trans back in? It acts just like the old GM's with the vacuum hose off the modulator.
2001 Ford F-150 Lariat 4.6L abs VIN: 1FTRX18W61
this vehicle will have Abs brake activation when coming to a stop below 5 MPH intermitently. Checked for codes with mt2500 and found none .Recorded movie when problem happens and find that ABSLFI goes to open for that brief moment Then returns to normal when v...
2000 Lincoln Navigator 5.4L Auto Shutoff VIN: 5LMEU27AIY
Hey folks, This truck runs fine for a few minutes and then the Temp Gauge shoots up to redline and shuts down the motor. The problem is that the motor isn't hot, we checked it with an infrared light. My scanner shows normal opperating temp and then it shoots u...
1998 Mercedes-Benz ML320 3.2L No Start VIN: 4JGAB54E0W
Hey fellow techs!Thanks ahead of time for your interest in my problem and such a great website. This Mercedes has an intermittent problem w/no starts.Towed to me when i first got in vehicle it started I backed it into garage and turned it off.When restart was...
1993 Mitsubishi Eclipse GS 2.0L Cuts out, Stall VIN: 4A3CF44E2P
Been working on this car for a while.Any body can help please and thank you.The emission machine is out so cant tell where the co and hc is doing.
1994 Mitsubishi Galant ES 2.4L Hesitation, Surge VIN: 4A3AJ56G5R
1994 Mitsubishi Galant has a surging problem at 1200rpm to 2000rpm with no load. Idles fine and above mentioned RPM seems to clear out. Replaced Mass Air flow sensor and ignition wires, plugs were good. Any advise from Mitsubishi techs? [...]...
1999 Nissan Quest GLE 3.3L Cooling Fan VIN: 4N2XN11T1X
Please help Nissan experts!Have this Quest which was towed in due to overheating-found no external leakage so we replaced the thermostat which was o.e.m. with Nissan stat.Engine does not overheat & ac cold as a refrigerator (vbg).noticed cooling fan cycles on ...
2000 Nissan Maxima SE 3.0L Steering wheel VIN: JN1CA31DOY
Here is a good one..A very high pitched sqeek can be heard in steering wheel when turning slowly.With a thestascope the noise can be heard in rack,inner,and outer tie rods.It can be also heard in strut mount area,and also in stering coloum near air bag clock s...
1992 Oldsmobile 88 Royale 3.8L No Start VIN: 1GHN5317NH
i have problem with this no start. I am not familar with the system. I have 9volts while I crank on the #1 fues b intermintently the voltage may drop off to .5 i have no spark or injector pulse Trouble codes: 58 (vechile anti theft)
1995 Oldsmobile Silhouette 3.8L Surge, BUCKS VIN: 1GHDU06L65
this car came to me through a used car dealer,customer brought in as last resort.originaly was taken to a trans shop for a severe buck when tcc locks up.they replaced trans and then torque converter- .did'nt fix was then taken to another shop which ...
1995 Pontiac Trans Sport 3.1L Lack of Power VIN: 1GMDU06D4S
Hello Ihave this van giving me some trouble. Going down the road and up hills I have lack of power until I plug my Snap On scan tool in and go into data then i gain back my lost power, but once I get out of the data screen power is lost. Can anyone help? All ...
1995 Toyota Camry DX 2.2L Poor Idle Quality, Stall VIN: 4TLSK12EXS
Hi Toyota techs this car is back for the third time for a stalling problem first time I cleaned the throttle body but never had the stalling problem I did notice that the car was under powered so I checked base timing and adjuted it and the car had plenty of p...
2002 Toyota Sienna LE 3.0L No Start VIN: 4T3ZF13C92
Hey Toyota Techs, I had a Toyota Sienna 2002 model towed into my shop today for a no-start condition. It sounded like the timing belt was stripped just listening to it crank. I pulled the front cover back and could see the timing belt moving. I then checked f...
1998 Volkswagen Cabrio 2.0L tach VIN: 3VWAA81E1W
We are installing a new dash cluster in a 1998 VW Cabrio.. the old unit had a bad tach.. using our Ross Vag software or our VW 1551 we can not get the instrument control module to answer... we can pull codes from both the engine module and the trans module, bu...

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1982 Cadillac DeVille 4.1L floods VIN: 1G6AD6989C
Thanks to all the replies that I recieved. The problem was the vacuum hose to the map sensor. Map sensor is located under glove box incase anyone needs to know. I didnt and it took me a while to find it. Thanks again...Shawn
2001 Cadillac DeVille DTS 4.6L Mode Actuator & Doors VIN: 1G6KF57991
Vehicle is fixed per update. No responses from others as to whether any time is saved over dash removal.
1992 Chevrolet Cavalier RS 2.2L No Start VIN: 1G1JC1444N
well it was the pcm, bad cracked board ,found full battery voltage going to pcm and only very low voltage coming out and motor wont start with less than 12 volts , put in a nother computer and seen voltage on scanner screen at full battery voltage car started ...
1992 Chevrolet K2500 Cheyenne 5.7L Poor Idle Quality VIN: 2GCFK29K7N
This was a comeback from another shop. After them replacing the engine with a recently rebuilt unit, idle surged when hot. I checked all basics, fuel PSI,timing,compression,vacuum at idle,egr,intake leaks,plugs, new cap +rotor,etc. No codes and problem only at...
1993 Chevrolet S10 4.3L no mil light VIN: 1GCCT14Z4P
Thanks to all that help with fix. IF all can remember, I had no check engine light on and was getting off the wall readings with 14 different codes. I had checked all power and grounds and wiring to and from data link. I installed remanf vcm from dealer and th... Trouble codes: 14 (coolant sensor high), 15 (ECT low), 23 (IAT low), 32 (egr error), 34 (map sensor circuit low), 35 (IAC error).
1996 Chevrolet K1500 Suburban 5.7L No Start VIN: 3GNFK16R5T
ok im calling this fixed rob from washington was the key to the fix i am assuming the injector poppets were sticking causing the flooding i took the csfi unit out and inspected the plastic tubes they were OK like i said in the update found a low mileage unit a...
1997 Chevrolet Monte Carlo Z34 3.4L engine VIN: 2G1WX12X1V
Well this one is not leaking oil any more.Customer decided to do head gaskets based on info recieved from you all.Customer had already re-sealed upper plate and oil pump drive and thought it would be better for his money to go all the way[and he was right!!]It...
1999 Dodge Grand Caravan SE 3.3L serpentine belt VIN: 2B4GP44G3X
We replaced the belt tensioner and that took care of the problem. Thanks for all the help it was greatly appreciated.
1993 Ford F-150 XL 4.9L Excessive Emissions, Hesitation, Surge, Cuts out, Stall VIN: 1FTDF15YOP
Hello All, Thank you all for taking time to respond.This vehicle was very intermittent and I was not able to catch any sensor failue/glitches with a lab scope.The owner needed it very badly so I decided to go with the advise of the replies (fuel control)and re...
1997 Ford Taurus GL 3.0L oil seperator VIN: 1MELM58S6V
Hi all, I recieved an email from John [...] at FOMOCO engine duribility Div. Stating 'Sorry, but a head must be removed.' After too much wasted time I reassembled what I had apart and sent him to the dealer. He will probibly trade the car in. He dose not wan...
1998 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU24XXW
thanks to all for their time and input. while the customer declined pcm replacement, i am fairly confident that would have fixed it as even though the global vs enhanced data streams did not agree the vehicle performed well,passed all monitors, maintained fuel... Trouble codes: 0133 (upstream heated oxygen sensor circuitbank 1 slow response), 0153 (upstream heated oxygen sensor bank 2 slow response), 1260 (theft detected-engine disabled).
2001 Ford Windstar LX 3.8L monitors VIN: 2FMZA51471
following drive cycle procedures which members provided helped pass the monitors needed to satisfy nyvip. thanks for all the help. Trouble codes: P0720 (pending code - output speed sensor).
1998 Jaguar XJ8 4.0L No Start VIN: SAJKX6243W
Thank all who helped me out. The lines do have to be disconnected from under the car. I used a small disconnect tool (no handle just the white disconnect tool )installing it over the line and pushing up with a long screw driver. One reply also sugguested wrapp...
2002 Mercedes-Benz C240 2.6L dashboard VIN: WDBRF61JX2
all replies said it was a step motor failure in dash, some said dash removal required, others said it could be replaced by removing center console radio air bag etc. we steered customer to dealer because we were to busy to remove the dash and the car with low ...
1988 Mercury Cougar LS 5.0L Excessive Emissions VIN: 1MEBM60FXJ
Hi All Yes the missing connection was in the right rear of the intake manifold and was plugged off... later the cust said OH yeah I knew about that ... here is a second more important question...these cooler lines use coolant to cool the egr gasses ..has anyon...
1987 Plymouth Horizon America 2.2L No Start VIN: 1P3BM18C3H
once again great help from everyone.bill was nice of enough to jog my brain and remind me of the test jumping the wires going to the pick up was a bad pick up coil the 'new' one i got was bad put in another one and it starts fine now.thanks again to ev...
1997 Toyota Avalon XL 3.0L Speedo,Fuel Gauge VIN: 4T1BF12B7V
Well this headache is finally fixed. We started out by soldering a fuse holder to the back of the circuit board (didn't want to buy any of those) and installed a smaller fuse 5 or 7.5A. We checked the fuel sender circuit several ways, totally disconnected, pul...
2001 Toyota RAV4 2.0L No Start, Stall VIN: JTEGH20V51
This vehicle had two faults. Ecm was not outputting an adequate 5v signal to the coils (igt). Igt measured with lab scope was about 1ms in duration; new ecm signal was 2ms. I tried unplugging the coils to see if igt improved--it did not. After replacing the ec...
1999 Volkswagen Jetta GL 2.0L Surge, Misfire, MIL Lamp on VIN: 3VWRC29M1X
I received several replies to my techmail request; however, the customer declined further diagnosis. He has stated he is not sure if he will keep the car or perhaps trade it in for a newer car. A few of the suggestions I received centered on the Mass Airflow... Trouble codes: P0300 (Random/Multiple Cylinder Misfire), P0302 (Cyl. 2 Misfire), P0303 (Cyl. 3 Misfire).
1999 Volkswagen Cabrio GLS 2.0L speedo tack VIN: 3VWBB81E4X
The cluster had been replaced in this car 10,000 miles ago but all said that they had had a lot of problems with the cluster so we put one in and fixed it.(had to send to dealer to get it programed thow) thanks to all for the help.
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