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Prev Professional Automotive Repair Technical Discussions for August 27, 2013
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Open Help Requests for GM
Help Request Answers
2005 Cadillac DeVille 4.6L Blower motor VIN: 1G6KD54Y65
Customer states that sometimes they will go out to the car in the garage & the blower motor will be running.They then get inside the car & turn the hvac system off & it stops running.Any ideas? Thanks,Bill
1990 Chevrolet V1500 Suburban Scottsdale 5.7L Poor Idle Quality, Stall
New customer explained motor has 15,000 on it, recentily had another shop trying to correct idle, Main problem is I have forgotten any thing I most everything I knew about these systems and need you guys to refesh my memory so I can diagnose it properly and no...
2000 Chevrolet S10 2.2L No Start, Poor Idle Quality VIN: 1GCC51946Y
Hey everyone, got a weird one here. Vehicle came in with no compression, engine was over heated so bad it basicaly melted the bottom end. At coustmers request we used a bottom end out of a 96 2.2 that they already had. Got the motor together and vehicle wont s...
2000 Chevrolet Blazer LS 4.3L 4lo shift VIN: 1GNCT18W2Y
so this is a fun one that's had me frustrated. 4wd works fine and works good. except 4lo. when you shift it to lo, it shifts you hear it, but it immediately kicks it out again. Best part NO CODES, I've tried every little combination and its always the same, s...
2000 Chevrolet C6500 Kodiak C6H042 7.4L tank overflowing
Ok, this one has me stumped, vehicle is equipped with dual fuel tanks. each with its own electric pump. as it runs it appears to send all return fuel to drivers side tank, making it overflow. Have checked all lines for kinks and have disconected return line ba...
2003 Chevrolet Astro 4.3L Poor Idle Quality, Cuts out, Stall VIN: 1GNDM19X33
this van has been in twice for issue.the problem occurs under very light accelerator pressure-ie cruise- never has a problem under hard acceleration.1st time in van had many problems-02 bad, tps, maf,cps & needed fuel system cleaned. all performed & van ran gr... Trouble codes: P0341
2007 Chevrolet HHR LT 2.4L Ecm VIN: 3GNDA33P27
this car came in with a dieing issue. it would die and read across the dash engine power reduced and engine disabled. you could pull over and sometimes it would start up sometimes not. hooked computer up and it showed po122 tp or app sensor 1 short/low and po2...
2009 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCEK23M59
This one came in with the check engine light on. P0521 - we went through the ppt and decided to replace the oil pressure sensor. The light came back on a few days later. I do NOT believe there is an engine oil pressure issue. Thanks, Mike Trouble codes: P0521 (Engine Oil Pressure EOP Sensor Performance)
2000 GMC Yukon Denali 5.7L wipers windows radio VIN: 1GKEK13R3Y
Hi all, vehicle has intermittant problem with wipers, radio and windows not operating. Problem occurs mainly in the rain. My diagram shows this circuit comes from the ignition switch, which so far tests OK, but I can't tell if the BCM is involved since it show...
2002 Hummer H1 6.5L Stall VIN: 137FA84362
This is a friend of mine chevy 6.5 deseil one which i know very little. sometimes it will die like u turn the key. not always hot. frist read about pmd. 2 years ago thats what it was. just like described in posts. we got pigtail and remote heat sink and it wor...

Fixes & Summaries for GM
Fix/Summary Answers
1987 Buick Regal GNX 3.8L master cylinder VIN: 1G4GJ1174H
Thanks to all that HELPED and not bashed. Tried ground circuit as many suggested, but it did in-fact blow fuses. I decided removed sensor at proportioning valve to inspect brass rod. It was pushed to one side. re-centered and all is well, brakes stop on a di...
1991 Buick Regal Custom 3.8L radio VIN: 2G4WB54L1M
The customer decided to take the vehicle as is and deal with the problem. But in mind I will always wonder.
2008 Cadillac Escalade 6.2L MIL Lamp on VIN: 1GYFK63888
Hello Fellow Techs. I would like to thank you for all your help and advise, we have try few area that with the symtom, but no luck, we finallize have Owner sent vehicle to Dealer. Thank you so much for support. Trouble codes: P0315 (Crank position sensor).
2002 Saturn L300 3.0L power steering pump VIN: 1G8JW54R22
it has been a bit of a journey, but the car is fixed. the morning after i posted this i drove the car. the bleeding had been done in the stall. upon driving the pump became noisy as the rpm's increased. called the owner and told him he needed a pump. he t...
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