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Prev Professional Automotive Repair Technical Discussions for March 31, 2010
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Open Help Requests for GM
Help Request Answers
1997 Buick Skylark Custom 3.1L No Start, Cuts out, Stall, MIL Lamp on VIN: 1G4NJ52M9V
this driving me nuts Trouble codes: P1629 (theft system malfuction)
1998 Cadillac DeVille 4.6L hard start cold VIN: 1G6KE54Y1W
Sorry in advance for the length and lack of actual values, the car has been at the dealer for over a month since I let it go so I am working off of memory. My notes went to the dealer with the car. Car starts hard only first time when it is cold. Cranks great ...
1991 Chevrolet Corvette 5.7L u joint VIN: JN8AZ08W77
need to know if i need the kent moore spring compressor to do the rear axle ujoints?is there a way to do this with out the spring compressor.
1991 Chevrolet Camaro Z28 5.0L break out box VIN: 5123263881
i was wondering if any one out there has a picture of the overlay for the otc break out box adapter# 3226-11 the overlay number is 103436 i have been on the phone with otc and they don't make them anymore and dont have any pics of one. i cant find mine any whe...
1994 Chevrolet Blazer Silverado 5.7L MIL Lamp on VIN: 1GNEK18K7R
Good Day everyone. I have what should be a slam dunk but I am the one getting slammed! The Blazer came in for loading up one start up and CEL. Pull codes and get 33 map high volts and rich code(didn't write it down).Scan data KOEO for map is 5.1, same as refer... Trouble codes: 33 (map high voltage)
1995 Chevrolet Camaro Z28 5.7L No Start VIN: 2G1FP22P8S
we have a z28 camaro in the shop that a customer brought in for a no start.he brought in a box of parts that he wanted replaced(coil,module,plugs,wires,headers) another tech replaced everything and it still wouldnt run. so i inherited the job.i found that if y...
2007 Chevrolet Malibu LS 2.2L MIL Lamp on, hard to fuel up VIN: 1G1ZS58F47
the car returned again same code a week later and yes it was hard to fill it took them forever she said to get it to half a tank. we took the tank out of the car not just down blew through all the lines to make sure none was clogged, removed tank unit and made... Trouble codes: P0446
2007 Chevrolet Tahoe LS 5.3L Electronic VIN: 1GNFK13047
abs light and service ride control come on intermittently while driving with abs code c0161, u0101, u0073, u0140 losing buss line connection i believe. shut vehicle off codes reset. under transfer case data on battery voltage it has 5volt steady shouldt this b...
2006 GMC Envoy Denali 5.3L engine VIN: 1GKET63M86
1997 Oldsmobile Cutlass Supreme SL 3.1L Misfire VIN: 1GH52MXVF3
This thing came in with an intake backfire it has a heavy misfire on #1 but all are misfiring some. so far I've ran fuel pressure, injector flow and drop, cyl leak down,and compression tests. All with good results. The ignition system is throwing the spark in ... Trouble codes: P0300
1999 Oldsmobile Aurora 4.0L battery VIN: 1G3GR62C9X
traced cliking to Lighting Control Modual LCM disconnected and the flashing of the parking lights stoped checked the connector is good all the holes are making contact wiggeled connector with modual connected and it flashes parking lamps only some of the time ...
1988 Pontiac Grand Prix 2.8L No Start, Cuts out VIN: 1G2WP14W2J
vehicle came in with intermittant no start issue. scan tool data not acurate, when idleing rpm on the scan tool fluctuates between 1-500 rpm which is incorrect info. desired idle on scan tool shows 3,069 rpm. scan tool data alos show that in 4th gear over driv...
2003 Pontiac Aztek 3.4L dash cluster VIN: 3G7DA03E73
customer came in, failed mass state inspection for no check engine light, i removed dash cluster to find out someone snipped the bulb off the circuit board. the bulbs/led's are not replaceable. well gm has an exchange program, but has no units to exchange. so ...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC14W2Y
With no helpful info from respondents I ask the same question in the TD forum and received a lot of useful info. the fuel pressure would drop below 55 while cranking and dead heading the pump wouldn't rise above 62. Even though it was a new pump it couldn't pr...
2006 Chevrolet Silverado 1500 LS 4.3L MIL Lamp on VIN: 1GCEC14X56
Injector flushed this one guys. Never would have thought it was that simple. Thank you guys for all of the suggestions. Trouble codes: P0101, P0171, P0300.
1998 GMC Savana 3500 6.5L No Start, Poor Idle Quality, Surge, Cuts out, Misfire, Poor Fuel Economy VIN: 1GDHG31F6W
Yea not real sure where the Duramax issue came in. Anyway, customer declined much repair on the truck, due to possibly getting rid of, not sure how many times we heard that one, so "keep it cheap as possible". We put a set of glowplugs in to start. Recorded... Trouble codes: P0126, P0216, P0236, P0380, P1125, P1654.
2001 GMC Savana 1500 4.3L No Start VIN: 1GTEG15W01
Tank you to all the help you gave me, the cap and rotor was the problem . I miss that one , thank again
2000 Pontiac Grand Am SE 3.4L Electronic VIN: 1G2NW12E3Y
So this vehicle is now fixed, unfortunately I did not fix it. The customer needed her car back, I was going to have her bring it back in and she had her dad look at it & he figured it out. It had two broken wires between the computer and the high pressure sw...
2005 Saturn Vue 2.2L Cuts out, no power VIN: 5GZC23D955
Good afternoon everybody Sorry for the long delay but I wanted to wait and see if this vehicle was fixed.I cleaned the throttle body as someone suggested and checked to make sure all the wire connections were tight,then I drove the car for 2 days and was ok fo...
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