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Prev Professional Automotive Repair Technical Discussions for April 16, 2006
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Open Help Requests for GM
Help Request Answers
1990 Chevrolet C1500 Cheyenne 5.7L slow start VIN: 2GCEC19K3L
The truck was brought in with a horrible rough idle,so after checking the timing and wire resistance(both were fine. I did a fuel pressure test and it was at 15 pounds. So I pulled the fuel filter and promply poured out two tablespoons of dirt. So I decided to...
2000 Pontiac Bonneville SE 3.8L ride control
hi fellow techs,i have a problem with this ride control.the pump runs most of the time with key on.will air up rear shocks,then they'll stay up-no leaks.sometimes it will release and lower shocks to normal ride hieght.sorry for the vague request,but i will be ...

Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick LeSabre Custom 3.8L Starts & dies VIN: 1G4HP53LXN
The vehicle is repaired although I am not sure what I fixed . Went after VSS problem. Tested wiring for shorts to ground, power, to each other - OK - unplugged VSS Same readings . Then I noticed battery voltage reading on the scanner was 11.2 volts , So this s...
1998 Chevrolet S10 LS 4.3L MIL Lamp on VIN: 1GCDT19X8W
Hello, sorry for the long response time. I changed the oil to a 10-30 and the customer said that the light had been off for the last 2 weeks. Thank you all for your responses, all of them were great help. Jeff
1998 Chevrolet Camaro Z28 5.7L preignition VIN: 2G1FP22G3W
Hi Guys I used xylene to de-carbonize the engine, and it was markedly better. However when it is hot and on extreme acceleration pinging still exists. I changed the plugs, checked timing, egr, and knock sensors. The owner has taken the car and left a Thunderbi...
1998 Pontiac Sunfire SE 2.2L MIL Lamp on VIN: 3G2JB5249W
Customers would rather drive with problem than leave vehicles for further testing. Sometimes hard to isolate a problem that happens every 2 weeks to a month. I have installed dorman gaskets with screen and will see if code comes back. Thanx for all the replies... Trouble codes: P0404 (EGR position out of range).
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