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Prev Professional Automotive Repair Technical Discussions for December 1, 2008
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2003 Buick LeSabre Custom 3.8L Cuts out, Stall VIN: 1G4HP52K73
I have checked and rechecked components to and from the pcm. To include the Ignition switch. This car seems to just shut off periodically. It is like someone turned the key off. The power to the dash stays on though. Fires right back up with out turning off th...
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2003 Cadillac DeVille 4.6L Stall, MIL Lamp on VIN: 1G6KD54Y53
Howdy there, This is the Moms car, it came in because the check gas cap light was on. Capture data shows it had been stalling, she remembered that later. We checked it and the guy who installed the air filter left the maf hanging by the coupler. I read where a... Trouble codes: P0102 (maf sensor frequency low), P0386, P0385, P0440, P0336, P1372
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1989 Chevrolet S10 2.5L No Start VIN: 1GTCS14A2M
This truck came in with a no start problem. If gas or starting fluid or carb cleaner is sprayed in the throttle bore to prime the engine it will start and continue running till it is shut off. Then it has to be primed all over again to get it started. Voltage ...
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1990 Chevrolet R1500 Suburban Scottsdale 5.7L up shifts warm
I need a teck to look at this truck. We rebuilt it 10 months ago,failed in NewTown Pen. Too far to send wrecker!Looking for shop to see what failed,not just throw another rebuild in it because its (junk).If you are near or know of a shop let me know.We all kno...
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1992 Chevrolet K1500 Cheyenne 5.7L speedometer VIN: 1G2F6RFK92
is there a way to test for signal coming from drac to the speedo head, my gut tells me bad cluster but i have hard time believing 2 speedos could be bad still no working speedo
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1993 Chevrolet K3500 Cheyenne 7.4L Hesitation VIN: 1GDHK34N3P
i need to know for sure what the fuel pressure specs are for this vehicle. book show 8-13, postings on this forum show 26 - 32. this truck feels like low fuel pressure/clogged exhaust type. the pressure reads 15 at all times. it lacks power and surges at cruis...
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1995 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22P9S
hello everyone, just got this thing back together, started it up and it died after about 5 seconds, key fob was dead replaced battery know it works, originally when turned key on had all kinds of warning ligfhts on and wouldnt crank, there are 2 black connecto...
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2001 Chevrolet Blazer LS 4.3L fuel tank VIN: 1GNDT13W91
this vehical will not take fuel very fast. you need to put in the tank very slowly. the fill tube has no restrictions and we unhooked the fill neck at the tank to ck the tank ck ball moves freely. did find the carbon canister plugged had a code po449 replaced ...
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2002 Chevrolet Trailblazer LS 4.2L Misfire VIN: 1GNDS13S52
TWO WEEKS AGO WE TOOK IN AN 02 TRAILBLAZER,4.2 L. 75,000 MILES, VEHICLE WELL TAKEN CARE OF. THE OWNER HAD JUST CHANGED PLUGS, OIL AND FILTER AND FUEL FILTER. WHEN VEHICLE STARTED AFTER WORK IT HAD A STEADY MISFIRE AND CHECK ENGINE LIGHT. WE HAVE KNOWN THE OWNE... Trouble codes: P0306 (6 misfire)
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1999 Pontiac Bonneville SE 3.8L Blower Motor VIN: 1G2HX52K6X
Only high blower does not work, the other three speeds are good. I replaced relay under hood and it worked fine for a couple days and quit again. Anyone had the problem of relay burning out on high setting only?
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1999 Saturn SL 1.9L MIL Lamp on VIN: 1G8ZF5285X
po500 is setting. customer had vss replaced by someone else. light was back on as she was near my shop, so she pulled in. followed flow chart in alldata. driving with scanner I got mph reading which matched the speedometer. took resistance measuments at ckts. ... Trouble codes: P0500 (vss malfuntion)
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2002 Saturn SL2 1.9L Poor Idle Quality, Stall, MIL Lamp on VIN: 1G8ZK54782
We replaced the IAC (idle control valve) and cleaned the TB (throttle body) and deleted the above malfunction DTC's. After a test drive, we noted that there was excessive stalling problems and the DTC's had returned but only when cold. Upon deleted the DTC's a... Trouble codes: P0341 (CMP out-of-range), P0506 (Idle control RPMs too low), P0509 (Idle control circuit high), P1599 (Engine stalled even though the key was still on)
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Fixes & Summaries for GM
Fix/Summary Answers
1993 Chevrolet Corsica LT 2.2L Misfire VIN: 1G1LT5340P
Thank you for all the replies & the advice to swap both coils was right on. The 2-3 coil was causing the miss,possibly shorted out.
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2000 Chevrolet Impala 3.8L Hesitation VIN: 2G1WH55KY9
Thanks to all that replyed. The customer was ok with the air pump noise once i explained to her that it was normal and not related to the rpms dropping and it wanting to stall when first started. The rpms dropping was because of the maf sensor was dirty. I cle...
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2001 Chevrolet Suburban 1500 5.3L bcm VIN: 3GNEC16T41
Thanks for your help the fix was in fact the BCM I have never seen 3 bad BCMs from the dealer Now they don't believe me ,But I put a used and reprogram the theft and works fine.thanks again.Santiago.
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2001 Chevrolet Silverado 3500 6.0L Voltmeter VIN: 1GCJK34U41
Thank you to all that responded. The fix was actually rather elementary where ONE of the two batteries was showing 12.2v before running the truck. It was Wade from Colorado that sent me in this direction with the suggestion of placing the DVOM on the windshi...
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2002 Chevrolet Express 2500 5.7L blower fuse VIN: 1GCFG25M92
Three of the replies I received were to replace the blower motor which I stated that I did in my original help request. The 4th suggested an aftermarket add on like a radio, but nothing had been added. Even running a fused jumper to the power terminal of the...
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2003 Chevrolet Impala 3.4L multi VIN: 2G1WF52EX3
THANK YOU FOR FOR ALL THE HELP. B.C.M. WAS THE PROBLEM. WOULD HAVE BEEN NICE IF WE WOULD HAVE PUT ALL RPO CODES IN , RKE WAS NOT PUT IN AT TIME OF PROGRAMING & B.C.M. IS A ONE SHOT DEAL. EXPLAINED TO CUSTOMER & LUCKY HE IS A GOOD GUY & HE DIDNT CARE ABOUT KEYL...
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2007 Chevrolet Silverado 2500 HD Classic WT 6.0L Poor Idle Quality, Hesitation, Surge VIN: 1GCHK29U67
Thank you all for your help, the fix on this truck was a new crank sensor. I was not able to test the sensor when malf, I tried a new one and truck runs good now.
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2004 Oldsmobile Alero GL 2.2L door remote not working VIN: 1G3NL12F34
Special thanks to Bobby,I didn't find the service bulletin relating to wire plug connections at the switch. REplacing the switch and tightening the connectors fixed this one!
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2001 Pontiac Sunfire SE 2.2L dash guages
Customer declined any further repair if he was to pay for it. He thought that we caused the problem while we were putting in a failed fuel pump in the tank
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