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Prev Professional Automotive Repair Technical Discussions for January 4, 2011
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Open Help Requests for GM
Help Request Answers
2006 Buick Terraza CX 3.9L very little heat VIN: BOAI745028
Van doesn't heat much tried adding antifreeze through heater hoses until comes out the other side also used air to blow through several times heated good for about three days pressure tested twice no laeks showed up, but was low when first came in. Why would a...
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2003 Cadillac Escalade ESV 6.0L Traction control VIN: 3GYFK66NX3
Thanks guys don't wanna screw up this one new customer.Lady came in this morning Cadillac want go.Test drove the vehicle coming to a stop Intrmittent ABS comes own the Secound time that happens in a ignition cycle "Traction Active" comes across the information...
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2007 Cadillac SRX 3.6L Loss of monitors VIN: 1GYEE63717
Was rejected from im test for monitors not run. Checked and found no codes. All fuses are good checked power and grounds,all ok. Reflashed ecm with latest program and still have same problem. Car will run most monitors when driven, but when car is shut off ho2...
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1989 Chevrolet S10 Blazer 4.3L No Start
hello everyone...thank you in advance. I have this 89 chevy blazer, 4.3 at our shop with a crank and no start condition. I have spark. I have good fuel pressure. but I don't have any injector pulse while cranking. If I spray some carb cleaner in the throttle b...
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1994 Chevrolet K1500 Silverado 5.7L Speedometer VIN: 2GBEK19K9R
Hello friends. this one has beaten me down. speedometer needle jumps , or doesnt move. Through it all we have thrown our hands in the air and replaced IPC, VSS, vehicle speedometer buffer, checked continuity/open of all wiring between VSS connector, buffer, I...
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2000 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 2GCEK19T9Y
So this truck keeps coming back. Originally I replaced the PCM because it was not reading the upstream o2 sensor, which solved that problem. But after the dealership flashed the new PCM it started having an abs light, brake light, and no signal from vss, but n... Trouble codes: P0502 (Vss low circuit-but not applicable to this truck)
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2000 Chevrolet K3500 7.4L MIL Lamp on VIN: 1GCHK33J5Y
First i don't have a lot of test details as customer was in a hurry!when i told him the code and that i would like to test the o2 sensors he insisted i just replace them.i did.i ran a mode 6 scan and it showed that the egr had failed the cruise test and decel ... Trouble codes: P0171 (System lean bank 1)
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2005 Chevrolet Trailblazer LT 4.2L Differential VIN: 1GNDT13S05
We are attempting to remove the front differential on an 05 trailblazer. The left diff. housing is busted. Can you replace just the left side without replacing the right, or do you have have to replace as a pair?
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2006 Chevrolet Silverado 3500 LT 6.6L 1-2 & 2-3 Shift VIN: 1GBJK34D86
This is an Allison 6 speed tranmission that has an intermittant harsh shift between the 1-2 shift and 3-4 shift. The rest of the time it shifts very well. The fast learn procedure made no difference. What pressures should I be looking for on the Tech 2 scanner...
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2007 Chevrolet Tahoe LT 5.3L MIL Lamp on VIN: 1GNFK13067
Got one in today that has us a little baffled. 2007 Chevrolet Tahoe 5.3 came in with a check engine light on. Checking the code I come up with a PO449 Evap. Vent Solenoid Control Circuit. Checked connections at the solenoid, fuse for circuit is good and have b... Trouble codes: P0449
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2004 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDT13S04
Over the past year or so this Envoy (which belongs to the office manager) has a problem where the PCM sets P1133 about twice a month or less. The problem is intermittent and always seems to run fine. However, the lights get rythmically dim then bright for 10 s... Trouble codes: P1133 (Upstream rich-lean transitions low), P0136 (Downstream O2 fails self tests)
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1996 Oldsmobile Cutlass Ciera 3.1L No Start, MIL Lamp on VIN: 1G3AJ55M0T
i towed this from a rual area upon first inspection found good spark good fuel pressure but vehicle ran after taking it off trailer pulled in my shop to have it never run again im presuming after testing for injector pulse and ohming the injectors that i have ... Trouble codes: P0341, P0300
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2008 Other GM 2008 3.6L Hesitation, Misfire, MIL Lamp on VIN: 6G1EK52B78
Hi my best group, this one will get me mad, this 2008 Chevy Lumina Export which made by Holden, its use same Engine as GMC Acadia and Cadi CTS. Customer came for MIL on found P0300 and P0306 with no actual misfire, only MIL on cleared and he take the car after... Trouble codes: P0300, P0306
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1997 Pontiac Sunfire SE 2.2L engine VIN: 1G2JB524XV
Hello all and thanks in advance for any input you can give me. Changed the engine in this car. Got a used engine from salvage yard, heard it run, sounded good. The engine I put in was out of a 99 Sunfire so I had to switch heads since they were different (also...
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1993 Saturn SL2 1.9L No Start VIN: 1G8ZK5576P
I needed some help this saturn will start and run great if you start it every day if you let it sit 3 or 4 days no start. Has spark at plugs, good fuel pressure, but injectors has power on both wires same time when you put test light on neg. Side of injector h...
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Fixes & Summaries for GM
Fix/Summary Answers
2007 Cadillac STS 3.6L Unknown VIN: 1G6DW67787
thank you all for your input. its was the rf hub bearing. Thanks again for your time
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1991 Chevrolet R1500 Suburban Silverado 5.7L Not Sure VIN: 1GNEV16K1M
As suggested, don't trust what the customer tells you. Pressure max was 60psi, dropping to about 25 (limits of guage) when vehicle warmed up. Fluid was full of sparklies, had not been changed recently, and the filter, though not completely plugged, had obvious...
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1993 Chevrolet G30 Chevy Van 5.7L No Start, Stall VIN: 2BGHG31K5P
It was a combination for poor fuel volume from the pump and a distributor. Replaced fuel pump and distributor along with complete tune up and it ran like new!! Thanks for all the help.
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2001 Chevrolet Silverado 2500 LT 6.0L convertor VIN: 1GCGK29U9Y
thank you for the replies. yuo kind of confirmed my thought on convertor problem and have talked it over with customer. since everthing else is shifting fine and you can drive through the chatter he is going to just run it for now because either way i would be...
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2004 Chevrolet Silverado 2500 LT 6.0L Ext. Mirrors VIN: 1GCGK23U14
SORRY FOR THE DELAY ON THIS CLOSE, I WANTED TO MAKE SURE IT WAS NOT GIVING ANY MORE ISSUE TO THE CUSTOMER. WE SHUT OFF THE MEMORY FUNCTION THROUGH THE STEERING WHEEL FOR ALL MEMORY ITEMS, (SEAT POSITION, MIRRORS, ECT)THERE IS A OPTION TO SHUT OFF ALL MEMEOR...
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2004 Chevrolet Tracker 2.5L Stall VIN: 2CNBJ73404
First of all thanks to everyone who replied.Richard from California nailed it...In such an obscure place the short would have taken much longer to find without that tip!So thanks very much.
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2005 Chevrolet Express 3500 6.0L Electronic VIN: 1GAHG39U05
well this is fixed all the reply's where great.It was the shift interlock . it would work then not .all voltages where right on . all grounds good . steping on the brake pedal you could hear the soloniod clicking . then it would stop working . replaced shift i...
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2006 Chevrolet Silverado 1500 Hybrid 5.3L Starting VIN: 1GCEK19T16
thanks to all that replied. i decided to check with local dealer to see if any warranty existed. was told that hybrid components were covered until 100,000 miles or until 2014. sent vehicle to dealer but then dealer called and said it was not covered under ...
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1999 Oldsmobile Aurora 4.0L Not Sure VIN: 1G3GR62CXX
The noise was coming from the anti-back fire valve.I poured water on it and it changed pitch.The customer didnt come back for repair and I didnt get any replies if the intake had removed for repair.Thanks for all who replied.
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1980 Pontiac Firebird Formula 4.9L Turbo VIN: 2W87TAN139
FIRST OFF , THANKS TO THE FEW OLD HOTRODDERS OUT THERE WHO ARE AS OLD AS I AM AND ACTUALLY DROVE AND WORKED ON THESE CARS WHEN THEY WERE NEW. THIS CAR IS RUNNING WITH PLENTY OF OIL PRESSURE TO THE TURBO AND THE ENGINE. AFTER SEARCHING EVERYWHERE FOR A SHOP MAN...
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