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Prev Professional Automotive Repair Technical Discussions for March 23, 2010
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Open Help Requests for GM
Help Request Answers
1986 Buick LeSabre Limited 3.8L No Start, no spark VIN: 1G4HR6938G
hello thanks in advance for the help this 1 came in no start no crank battery was dead charged now it has no spark have checked wires to and from cam and crank sensors have replaced crank sensor and ignition module checked for voltage at crank and cam book say...
1994 Chevrolet K2500 Suburban 6.5L Poor Idle Quality, Misfire VIN: 1GNGK26F3R
Hello, this truck runs rouph somtimes at idle acts like its an injector but it pops through the intake maybe and shakes. tryed to do cyl cancel by cracking the injector when its doing it but doesnt change the condition. off idle it stops. mitchel and alldata a... Trouble codes: 000
1995 Chevrolet K1500 Silverado 5.7L clutch VIN: 1GCEK19KXS
Hi Guys. Pulling my hair out. Truck came in w/ hard shift, slip in gear. Figured clutch bad @ when pulled trans, clutch was shot. Flywheel not bad so installed new clutch kit. Clutch,press. plate, bearing,piolet bearing. after all was said and done. Pedal didn...
1997 Chevrolet P30 7.4L Stall, VIN: 1GBKP37J9U
High guys we had this motor home towed in this morning no start. Found burnt pcm fuse, replace fuse and it started. ran fine at idle here at the shop. Took for a road test, after a couple of kilometers vehicle stalled. when trying to restart could here clickin...
2001 Chevrolet Venture Warner Bros. 3.4L Cooling Systems VIN: IGNDX13E51
i replaced intake gasket 2000 miles ago no problem till now.complant is drive down road temp gauge goes to hot loose power and looose heat.i replace rad seem not flowing didn't get hot on me gave back.they drove 2 days same problem.replace water pump and coola...
2004 Chevrolet Classic 2.2L fuel guage, IPC, A/C VIN: 1G1ND52F94
Alright guys we have a tough one here in the shop. This Malibu Classic was brought to us by the local Ford dealer. They attempted to install a pass-time payment alarm and mistakingly cut the fusible link from the alternator to the starter. We rewired the alarm...
2005 Chevrolet Suburban 1500 LS 5.3L MIL Lamp on VIN: Z65J105571
Hi guys and thanks in advance for your help. This vehicle came in with a code P0455. I did a smoke test on the vehicle and with my scanner I commanded the evap solenoid on and off still did not hold pressure.I can see smoke coming out of the top of the can whe... Trouble codes: P0455 (Evap system large leak)
2006 Chevrolet Impala LS 3.5L Battery Replacement VIN: 2G1WB58N66
Hello my customer came in and told me that she received a email from Onstar telling her that the back up battery for the Onstar system needs to be replaced. I have been unable to find any info on where or how to replace this battery. Any help would be grateful...
2007 Chevrolet Silverado 2500 HD Classic LT 6.0L MIL Lamp on VIN: 1GCHC24417
customer came in ses lite on .. delivery vehicle .high miler ..scan test ..code p0060..heated [...] bank 2 sensor 2 heater circuit resistance sounds simple change 02 sensor back in two days lite on same code . on the data stream the amp draw of the o2 sens...
2008 Chevrolet Trailblazer SS 6.0L transmission VIN: 1GNES13H88
Customer bought own parts and wants us to install them. This TRU-COOL unit looks easy enough to install but I still would like some input. Any tricks or mistakes that have been learned or experenced would be helpful. Would a 2 hour estimate cover this project?...
2000 GMC Savana 1500 5.7L Hard start VIN: 1GDFG15R7Y
Cust. states that the vehicle starts hard when cold. Van was in once for cap, rotor, fuel pump. Came back on the hook no start, checked cap it was full of condensation, replaced with new one under warranty. Started up with a random missfire, Checked plugs they...
2004 Saturn Ion-1 2.2L Clutch
car has a low clutch pedal and stiff , how does one bleed this clutch ?? mitchel says to depress the clip and push the line in !!! the clip depresses but the line will not move in or out ... how do you separate the line from the slave cylinder if it will not m...
2006 Saturn Ion-3 2.4L ignition swicth VIN: 1G8A155B36
OK I need the straight scoop on this one. The vehicle will not shut off when you turn off the key and remove it. This happens about 30 percent of the time and if you wiggle the key enough it will shut down. I replaced the ignition switch and it did not solve t...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Riviera 3.8L No Start VIN: 1G4GD2217S
Ok techs I have done everything to try and fix this car, we checked the ohms on the injectors they were all 14 ohms I even swapped some injectors. I looked for the fuse in the kick panel removed the ecm and all to find nothing, while we were checking the injec... Trouble codes: P0640.
2001 Buick LeSabre Limited 3.8L HVAC Display Milage display VIN: 1G4HPS4KS1
Thanks for all the great help on this one, Okay as far as the cluster for the milage it was sent back one more time and was repaired this time. And on the HVAC controle head ended up that the light blue wire from BCM or ipcm same module. ran a new wire from pi...
2002 Cadillac DeVille DTS 4.6L trans light rattle at iddle noise iside trans VIN: 1G6KD57Y52
first i want thanks to all for the help , and tell that after rebuild two times the transmission we did not notice that the transmission case was crack in the bell housing . so we replace it and no more noise.
1995 Chevrolet K1500 Suburban 5.7L No Start
You guys are great! I had my brother in law check for ac mv out of pickup and it seemed ok. I had him unplug the TPS and it started right up. It was sending more than 4v to ecm this was the reason for the shifting problem also. Thanks again to all you guys...
1998 Chevrolet C1500 Silverado 5.7L Surge, MIL Lamp on VIN: 1GCFC14R3W
first i want to thank everyone as a group.all of you had good suggestion.i found myself going back to the fuel tank pressure sensor at no avail.struggling to give in to the idea of a computer reflash that was on a tsb in the year 1998 and this truck had been o... Trouble codes: P1404.
2002 Chevrolet Prizm 1.8L No Start VIN: 1Y1SK52812
Thank you all for the help !!! I learned a lot about Toyota this time . Especially crank / cam relationship . Yes , the cam timing was incorrect . I had this unit apart three times , and the last time I goofed on the cam timing . If the PCM does not see the co...
2002 Chevrolet Trailblazer LS 4.2L Safety VIN: 1GNDT13S22
Sorry for the delay i put the new module in and didn't reconize it so i had to send the customer to the dealer snd i still haven't heard back from him as to if it is fixed but from your posts i beleive that it should be fixed Thanks Again to everyone
2006 Chevrolet Express 3500 4.8L accumulator VIN: 1GCHG35V56
Thank to Jacob, Jerry and Joseph, I felt confident putting this trans back in. I was quite surprised there really was not any other signs of overheating. Anyway, I thoroughly flushed the coolers and lines, blew them out and reinstalled. Road test showed 0 or 1...
2006 Chevrolet Malibu LS 2.2L MIL Lamp on VIN: 1G1ZS51F06
I finally got this thing fixed I didn't post fix right away just to make sure it didn't come back! I ended up restricting the heater core inlet side with a 5/8" heater hose connector from the help section at local parts store. I put this in and all is well. ... Trouble codes: P0128 (Temperature below threshold), P2119 (Closed throttle position performance).
2001 GMC Savana 2500 5.0L MIL Lamp on VIN: 1G1FG25M91
Thanks for all the help! I didnt mention the vacuum leak at the pcv hole with the fresh air tube blocked, its a good way to tell if the lower intake is leakin, which in my case it was not, I repeat was not the intake. The only thing that seemed possible, was... Trouble codes: P0171 (p0174-), P0174 (testing and results).
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