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Prev Professional Automotive Repair Technical Discussions for November 8, 2011
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Open Help Requests for GM
Help Request Answers
1996 Chevrolet Cavalier LS 2.2L torque converter VIN: 1G1JF5246T
car has an abs code c1233,will this effect the torque converter lock up while cruising on highway,this thing will toggle on and off at 50 to 55 mph,
1999 Chevrolet Blazer 4.3L fuel and temp gauge VIN: 1GNDT13W0X
I have a regular customer who bought this 99 Blazer and he asked me to check his fuel gauge. I check it, and it jumps back and forth with key on. Does it running or not. Put trans in drive or any gear it is steady and accurate. Shut off vehicle, gauges all dro...
2000 Chevrolet Silverado 1500 4.8L fuel gauge VIN: 1GCEC14V2Y
We have this Chevy PU and every so often the fuel gauge will drop to empty and turn on the low fuel lamp. When this occures the reading at the PCM shows the same as it does when the gauge is working. approx 5 volts at this time. We can input a signal at the C1...
2000 Chevrolet Monte Carlo SS 3.8L dome light
Hello All, I have a bit of a head scratcher on this one. A 2000 Chevy monte carlo ss came into the shop with an intermittent dome light flicker. He says that on frosty cold mornings, when driving the dome light will come on, flicker, and then shut back off. I ...
2001 Chevrolet Malibu 3.1L theft VIN: 1G1ND52J01
came in the shop running with bad battery and theft light on. customer stated [befoure any job was done] that light is on for one year or more. i replaced battery on this car and now is not starting.tried that 10 min key on 3 times but is not working. is there...
2001 Chevrolet Malibu LS 3.1L No Start, Stall VIN: 1G1NE52JX1
This thing will start and stall after a second. Theft light stays illuminated. Radio, some guages, power locks, and trunk release don't work. No comm with BCM. Mitchell wiring info is WRONG! It led me to believe the ignition switch was bad on one circuit. Repl... Trouble codes: U1064 (Loss of comm with BCM), P1626 (Theft deterrent fuel enable signal lost), U1000 (Comm line down)
2008 Chevrolet Express 3500 6.0L back up lights / alarm VIN: 1GBJG31K38
G3500 bus backup lights and alarm come on when you shut off bus but daytime lites are on b/u lites and alarm stay on untill daytime lites time out or you manually shut off with headlight switch. Alarm wire into back up lite hot side and grounded to chassis. Ch...
2003 GMC Sierra 2500 SLE 6.0L Oil pressure VIN: 1GTHK29U53
Truck came in with no oil pressure at the gauge but no noise from motor at this time.We checked oil pressure with mechanical gauge to verify oil pressure and found that the pressure to be 0 at idle and load it up and never went pass 15lbs of pressure. The part...
1966 Pontiac Bonneville 6.9L headlamp switch VIN: N0TSUREV6H
having to replace the headlamp switch on this car because the old one had a meltdown from faulty connections. This is a very pretty car and all original. I need a schematic for the headlamp switch. I have all the wires but don't know the location of each beca...
2004 Pontiac Grand Prix GT2 3.8L blower VIN: 2G2WS52234
I'm looking for some advice on this problem. The car came to me with a problem of the blower not coming on when cold until the car had been running for several minutes. During the time I had it here, I checked many times and every time I started the car the fa...

Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet Blazer LS 4.3L Coolant leak VIN: 1GNDT13W71
Greetings and thanks for all the replies. I have to laugh at myself - must be the only tech in the country that hasn't run across this before! General consensus: The OE gaskets are junk and prone to failure; use updated Felpro gasket set to prevent future prob...
2001 Chevrolet Corvette 5.7L Wheels VIN: 1G1YY22G21
I thank you all for your replies. First, may I say to the following two... Mike from British Columbia and George from Connecticut: I asked for you guys be polite. Come on now, even though your points are true there is a better way to phrase what you are...
2005 Chevrolet Suburban 1500 Z71 5.3L stabilitrac VIN: 3GNFK16ZX5
Sorry it's taken so long to close this one. The customer decided that he did not want to go any further with this problem at this time. He said it's not bothering him too badly and said he would bring it back if it started to drive him crazy. Evidently it hasn...
2005 Chevrolet Equinox LT 3.4L driveshaft VIN: 2CNDL73F05
The CV style joint came apart after wrapping the mini ductor atound the bell at the largest part. I got it hot not even red. Used a punch and it came apart effortlessly. Then we reassembled it easily.
2006 Chevrolet Corvette 6.0L No Start VIN: 1G1YY36U16
i had gm tech come & program pcm & relearn new key needed to be hook up to internet to down load new program
2010 Chevrolet Equinox LT 2.4L MIL Lamp on VIN: 2CNFLEEW9A
Thanks for eveyone taking the time to respond to this one! It is at the dealer being fixed right now under warnty. The high pressure fuel pump was leaking out of the piston into the crankcase as the camshaft is what drives the fuel pump. This was causing the e... Trouble codes: P0172 (Fuel Trim System Rich).
2011 Chevrolet Traverse LT 3.6L oil interval VIN: 1GNKRGED8B
thanks for all the help. there is no fix for something not broken.gm is the culprit for leading owners to believe that there routine maint schedule is so long that it will be a money savings to them, when in reality they will still change their oil every 5k mi...
2005 GMC W4500 Forward W4S042 5.2L Surge, Lack of power VIN: JHDC4J1645
The customer decided he didn't want to fix truck since it only occurs under heavy load cheap ass. I believe without further testing that it was a problem with the fuel filter adapter check valve causing starvation to the injection pump. The surge that was ment...
2003 Pontiac Grand Prix GTP 3.8L Ebcm VIN: 1G2WR52163
hey we still have not found the problem for the ABS yet. but we did find major water damage under the passenger seat where the airbag module was. and because the airbag module was not communicating on the bus line. I replaced the airbag module which fixed the ...
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