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Prev Professional Automotive Repair Technical Discussions for November 3, 2014
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Open Help Requests for GM
Help Request Answers
1999 Cadillac Seville SLS 4.6L Fuel pump VIN: 1G6KS54YXX
We are without the special tool for tool pump retaining ring, ours walked away. Usually we can tap on the ring to loosen and remove it without a tool but this one is particularly stuck. Any hints on removal without ring tool?
1998 Chevrolet S10 4.3L ignition system VIN: 1GCCS14W3W
Customer stated that the engine was recently replaced and was running fine. After shutting it off, he returned to start the truck and found no start situation. Truck was towed to my shop where upon inspection I found no spark from coil although there is proper...
2007 Chevrolet Avalanche LTZ 5.3L MIL Lamp on VIN: 3GNEC120X7
Having problems with bank 1 running all the way to +30 trim on decel. You can not watch variable displacement system and fuel trims on the tech2 at the same time. I cannot absolutely verify this but it only seem to go lean like this when the variable displacem... Trouble codes: P0171
1999 Pontiac Grand Prix GT 3.8L Misfire, MIL Lamp on VIN: 1G2WP52K2X
This car misfires on cyl's 2 & 5 (comes & goes) that starts @ 52mph or higher under steady throttle, I can watch the misfires on my scanner as well as feel it. It never misfires any other time. Previous shop replaced spark plugs, wires, coil (2 & 5 share coil)... Trouble codes: P0300

Fixes & Summaries for GM
Fix/Summary Answers
2011 Cadillac DTS 4.6L coolant crossover VIN: 1G6KH5E63B
Thanks for all of your tips. the job is done & gone. It was a pretty big job. The wiring harness by the transmission & the fuel rail were the biggest obstacles to the job. Took about 4 hours first time so it was not to bad.
2001 Chevrolet Silverado 1500 5.3L Cruise Control VIN: 2GCEK19T21
Thanks to all, we found a loose wire for the cruise control on at the pcm. repaired wire and so far so good
2003 Chevrolet Silverado 2500 HD 6.6L Temperature VIN: 1GCHK23193
At this point we are waiting for the customer to get the ok to replace TCM. I will update this post with findings. Thank you all who replied.
2001 GMC Jimmy SLE 4.3L Poor Idle Quality, Cuts out, Misfire VIN: 1GKDT13W51
Two part story, lean got bettery with fuel filter, even though cap had been replaced and looked Ok replaced and engine ran fine, looked better at old cap and found pin hole burn at one terminal causing spark to jump, next time going with my gut and save a lot ... Trouble codes: P0122, P0155, P0300, P0440, P0452.
2002 Oldsmobile Bravada 4.2L lf wheel VIN: 1GHDT13S62
It seems noise is diminishing as time goes on. Has it back and apart twice and have found nothing that could be making the noise. Sounds just like backing plate rub, but have nevber been able to find any evidence of it. Every time I have pulled things apart, t...
1995 Pontiac Bonneville SE 3.8L engine VIN: 1G2HX52K8S
Yes I did find an engine with 64K miles from a 2000 Le sabre Vin k Thank you guys Soooooooo much for taking time to help. I will exchange pan, intake, manifolds etc. from other engine as suggested.
2003 Saturn Vue 3.0L Cooling Systems VIN: 5GZCZ63B83
The vehicle hasn't came back to the shop but I think I'm gonna take a close look at the coolant temp sensor circuit when it does. Thanks!
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