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Prev Professional Automotive Repair Technical Discussions for July 10, 2013
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1980 Chevrolet Citation 2.8L Mechanical VIN: 1X687A6204
all right guys, got one that is making me feel stupid. car is pre-computer. car came in as a no start. customer said day before no start, they did a 170 mile trip and ran great. next morning car was a no start, customer had tried a different module and coil. a...
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1987 Chevrolet V10 Custom Deluxe 5.7L Hesitation, No power upper RPM VIN: 1GCEV14K5H
Idles good, when accelerating, can`t reach high rpms, acts like it has a rev limiter or timing retards, code 43 not usually present, I set timing to 0 with no improvement, set at 4, then can reach slightly higher rpm but code 43 set at full throttle. Fuel pres... Trouble codes: 43 (testing and results)
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1994 Chevrolet C1500 Suburban Silverado 5.7L No Start, Cuts out, Stall VIN: 1GNEC16K3R
Every once in a while, this throttle body suburban will cut out, usually in traffic after a stop. Restarts quickly after cooling off everytime and I have not been able to duplicate no start. It seems ignition related. The coil and dist pickup are the only thin...
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1998 Chevrolet Malibu LS 3.1L Dash Lights VIN: 1G1NE52M2W
Ok here we go agian, car can in on 5/23/2013 no dash lights. We found that the 10amp fuse for the ip lghts was blowen. Dead short as soon as we put in a fuse and turned on the lights fuse would blow. Disconnected the dimmer module and fuse would not blow. Ohms...
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2004 Chevrolet Silverado 3500 6.6L No Start VIN: 1GBJK39154
hi guys, truck was brought in for no start unless you spray it with starting fluid(i know) I have checked vacuum pull from pump,has 8" of vacuum. Vacuum tested supply line across engine to filter. if i prime filter it takes approx.9 mins to go from 10psi to 2p...
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2005 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHK23265
Truck came in for CEL. Codes P0046 and P2563. Also for a regular oil change. Customer is a regular that maintains truck. I researched the codes and diag procedure. The actual and desired position of the control solenoid and sensor do not match. I did the tes... Trouble codes: P0046 (Turbo Boost Control Position Performance), P2563 (Turbo Boost Control Position Sensor)
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2008 Chevrolet Colorado WT 2.9L Hesitation, Cuts out, Stall VIN: 1GCCS14958
Hello IATN world. I have the pleasure of woking on a 2008 Chevy Colorado with a 2.9l. The vehicle starts great cold but as the vehicle warms up to temp there is a slight misfire between 1500-2000 rpm, not enough for the pcm to reconize. After a hot soak, try t... Trouble codes: P0106, P0300
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1995 Oldsmobile 98 Regency Elite 3.8L cam/crank sensor VIN: 1G3CX52K4S
This car has a "stumble" then traction control light and check engine light comes on intermittently. seems to mostly do it on cold start up. once warm you can start it without it occurring, checking codes pulls p0341`,342, cam sensor and cam crank correlation....
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Fixes & Summaries for GM
Fix/Summary Answers
2006 Buick LaCrosse CXS 3.6L all gauges VIN: 2G4WE58796
In this case, the process of elimination led us to believe we had a bad ECU. Because the part is dealer only and must be flashed by the dealer, we sent the customer off to the dealer for repair. They reported the computer fixed the issues. Thanks to all who re...
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1999 Cadillac Seville STS 4.6L charging system VIN: 1G6KY5495X
hi again. thanks for all your prompt responses. we replaced the alternator and it solved the problem.
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2001 Chevrolet Silverado 1500 5.3L Misfire VIN: 1GCEK14T71
while running found fuel pressure to get too low as if starving for fuel. low and behold it was fuel filter. thanks for the ideas and your help. jpl Trouble codes: P131, P151, P300, P463, B1001.
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2001 Chevrolet Tracker 2.0L Shifter lever
The 3 replies I got hadn't see a problem like mine. I called the local chev dealer and service manager said that they use to eliminate a lot of trackers locking assemblies because the customers didn't want to spend the big price tag to fix it.He said it has 2 ...
3
2002 Chevrolet Impala LS 3.8L MIL Lamp on VIN: 2G1WH55K12
It turned out to be the PcM INSTALLED IT today did reflash test drove all is good thanks again Trouble codes: P1635, P1639.
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2007 GMC Sierra 2500 HD Classic SL 6.6L No Start
I'm closing this request folks on somewhat of a sad note-not being able to fix the problem. My customer decided not to invest in four injectors that I suggested due to money constrain. I did what one of you suggested and looked for fuel mist out of the injecto... Trouble codes: B0414, B1025.
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