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Prev Professional Automotive Repair Technical Discussions for November 16, 2008
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1995 Cadillac DeVille 4.9L Alternator/Charging VIN: 1GWE34546T
Student making repair to fuel system (replacment of fuel pump module)accidently applied battery power to the alternator disabling connector located just behind the alternator,thinking this connector was the fuel pump test connector. Student was successful in r...
1997 Chevrolet C3500 5.7L No Start VIN: 1GBJC34R6V
Truck was towed into our shop. Diagnosed low to no fuel pressure, went from 60-20psi and pump was noisy and fuel pump relay was getting hot. So we dropprd the front tank (dual tanks on this truck) and were going to replace fuel pump. When we pulled the tank no...
2001 Chevrolet Silverado 3500 6.0L Voltmeter VIN: 1GCJK34U41
This truck will intermittently indicate a loss of charging when ever it is in overdrive and goes into deceleration, especially when there is a load such as a trailer helping to push the truck when in "tow/haul" mode. There should be no connection between a dow...
2002 GMC Savana 1500 4.3L Misfire, MIL Lamp on VIN: 1GTFG15W32
This van came in with the check engine light on and the owner said the light comes on when cruising at 55 mph and the check engine light comes on and flashes at this speed on the highway.Van has new ignition parts.Looked at misfire data when problem happens an... Trouble codes: P0300
1997 Saturn SL2 1.9L MIL Lamp on
hey techs, just want some opinions on what this problem is. car needs to pass smog. retrieved 1 code P0172 runnin rich. ive checked compression good,spark plugs good, valves ok,map sensor working ok. the fuel pressure however is kinda low. somedata says psi sh... Trouble codes: P0172
2000 Saturn LS2 3.0L No Start VIN: 1G8JW524R8
The vehicle started off being a no start, customer turned the vehicle off and came back an hour later and vehicle would not start, no click or anything when you turned the key. Was able to bypass power to the starter via jumper lead to get vehicle running. Loo...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Buick Park Avenue 3.8L power seats VIN: 1G4CW54K03
I have not fixed this yet. I learned from others that this is a common problem, and there is no cheap fix. I did loosen the passenger side seat and was able to open the gear box on one motor and turn the adjuster by hand, to lower the seat. I will do this with...
2004 GMC Savana 3500 6.0L Brake System VIN: 1GJHG39U84
We found the Hydro Boost fluid low, so low that when going down a hill the pump was sucking air causing the pump to cavitate and the pedal to pulsate and the brakes to pulsate.
2006 GMC Envoy Denali 5.3L drivetrain VIN: 1GKET63M76
well it seems I need a transfer case in my truck. I did try servicing the unit and it did not help. I did unplug the encoder motor and drove the truck and it did the same thing. From what my tranny guy says the vibration I feel is the clutches in the tranfer c...
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