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Prev Professional Automotive Repair Technical Discussions for July 6, 2011
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1998 Buick Regal LS 3.8L ABS module VIN: 2G4WB52K9W
Code C1233 continues to come back ) RF speed sensor open or shorted. we replaced sensor with new delco same code) we swapped the front short harness from side to side same code. We replaced the wires from abs control module to the harness at the RF sensor ) we...
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1993 Chevrolet K2500 Cheyenne 6.5L no upshifts past second gear VIN: 1GCGK24F9P
we followed dtc 22 flow chart and was lead to replace tcm. we replaced the tcm and have the same code 22. we have used an otc scan tool we have used a snap on modis and a gm tech on this concern. all scan tools report 35 percent throttle at idle and tp voltage...
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1997 Chevrolet C1500 Suburban 5.7L Temp VIN: 1GNEC16R9V
Vehicle came in shop for a//c compressor replacement, per customers request, after repair was done including drier and orifice tube, system was evacuated for 20 min and recharge with 4lbs of refrigerant. I have 100+ degree weather were i work at, now this syst...
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1999 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J0X
thanks for any help that you can give in advance. my father a took this car apart in Jan. for head gaskets do to over heat. he attempted to put it together twice and could not get it to run so he finally brought it to my shop. i reassembled it. now i can get i...
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2002 Chevrolet Impala LS 3.8L battery light VIN: 2G1WH55K22
Group, I am having a gremlin problem. Customer brought us this impala with battery light on. They had installed a alternator thinking that was it. I tested and found alternator is charging 14.3 volts. Pulled battery cables and found corrosion at battery ends s...
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2004 Chevrolet Silverado 3500 6.6L MIL Lamp on VIN: 1GBJC34274
their is inconsistent imformation regarding is, or what is not allowable specifictions . fuel ramping of desired and actual fuel preassure on tech 2 indicates fprv ok ? Trouble codes: P1093
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2005 Chevrolet Colorado Sport LS 3.5L Encoder VIN: 1GCDT13615
DTC C0327 Circuit Description The transfer case shift control module has 4 encoder circuits, and each circuit is supplied 12 volts. These 4 circuits are A, B, C, and P, and each circuit runs to a switch located inside the encoder/motor assembly. When a parti...
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2005 Chevrolet Silverado 2500 HD 6.0L air conditioning VIN: 1GCHC23UO5
Good evening fellow mechanics.First of all thank you for taking the time to read my post.The problem on this truck is that the air conditionning goes to hot by itself only on the driver side and it does it only when it feels like it.I saw a few post regarding ...
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2006 Chevrolet Trailblazer SS 6.0L Poor Idle Quality, Misfire VIN: 1GNES13H96
Hey i have a 2006 ss trail blazer ls2 engine came in with cylinder 5 missfire.did a compression test came up with 160 psi,plug was fine, has good spark also swaped injector and still cylinder 5 missfire, pulled valve cover just to make sure it didnt have a bus... Trouble codes: P0305 (Cylinder 5 missfire)
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2008 Chevrolet HHR LS 2.2L Air bag VIN: 3GNDA13DX8
Thanks in advance for help, we have this HHR that has codes B0012 and B0013. There is not much info out there on this and have a air bag sitting here, I'm not familar with Chevys so help is greatly appreated! We replaced the box that for the blend door and aft...
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1995 Oldsmobile Achieva S 2.3L MIL Lamp on VIN: 1G3NL55D7S
hate to admit it but this simple map problem has me going crazy, code 34, map low, sets as soon as key is on, checked from the back of the map plug has 5.00 volts reference, has 1.8 volts returned to computer, has good ground, cheked at cmputer has 4.79 volts,... Trouble codes: 34 (map low)
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1996 Pontiac Sunfire SE 2.2L security VIN: 1G2JB1242T
Hello all. Taking this over, since my tech is at a loss (and now I am, too since he started throwing parts at it). Vehicle came in as a crank/no start. Engine starts briefly, then dies. Anti theft light blinks three times, then stays on. Tech. tried re-learn p...
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2000 Pontiac Grand Am SE 2.4L Stall, Misfire, MIL Lamp on VIN: 1G2NF52T7Y
hi everyone hoping for a little input. customer states was driving car and began to shake really bad then stalled towed car here,when i tried to start it it cranks,starts runs rough and back fires. fuel pressure is good,when i checked missfire data i saw #1,#3... Trouble codes: P0300
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2006 Pontiac G6 2.4L All shifts VIN: 1G2ZF55B66
Hey guys & gals, got a G6 here with harsh shifts after 10 minute drive. When hard shifting starts, pcs desired and actual pids both drop to 0.0 If you shut car off for a couple of minutes & restart,all is well for a short drive. With no trans codes can this ca...
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2007 Pontiac G6 GT 3.9L Retractable Roof VIN: 1G2ZH36167
Customer drove in this morning with his G6, retractable hardtop stuck in the down position. Pushing the button to go up, we hear the hydrualic pump running, but nothing seems to be engaging. Only message that displays on the dash is "Top Not Secure". I can't...
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2003 Saturn Vue 2.2L hydraulic system VIN: 5GZCZ23D43
I need help bad. I don't know what else to try.
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2007 Saturn Aura XR 3.6L Electronic Stability System VIN: 1G8ZV57727
Hello, the driver information system reads ESC OFF. Cruise control inop. Has code C0161(brake lamp position switch) & U2125(Class 2 loss of communication). After replacing brake position switch all was good for a few days, now returned with ESC OFF on dash. An...
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Fixes & Summaries for GM
Fix/Summary Answers
1995 Cadillac Eldorado 4.6L Poor Idle Quality, Surge, Cuts out, Stall, Hard start VIN: 1G6EL12YXS
Thanks to all that replied. I decided to clear the DTC's and start from scratch. After clearing the codes, the vehicle would still start with some difficulty and periodically stall. It would always restart. I had my Verus hooked up in the hope that I might... Trouble codes: 23 (Ignition control ckt problem), 32 (Map sensor fault), 36 (Egr fault), 53 (4x ref. Sig interrupt from ign. Module), 91 (Pcm keep alive memory), 95 (Engine stall).
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2001 Cadillac Seville STS 4.6L 3-4 Shift VIN: 1G6KY54971
I APPRECIATED ALL OF THE ADVICE. SORRY IT TOOK SO LONG BUT HAD TO WAIT FOR CUSTOMER TO BRING CAR IN FOR REPAIR. THE FOURTH BAND WAS BURNED/WORE. I WOULD GUESS BECAUSE THE INTERNAL SEAL FOR TCC CIRCIUT WERE BROKE AS NORMAL. REBUILD COMPLETELY AND WORDS GREA...
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1991 Chevrolet P30 7.4L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall VIN: 1GKP37N9M3
Fuel pressure needed was about 30 psi. Fuel pump pressure and volume were low for its needs. Also pressure regulator in the TBI was incorrect from the previous shops rebuild. Fuel pressure regulator would click and make noise at 30 psi. Needed correct pump and...
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2000 Chevrolet Tahoe 5.3L battery light VIN: 1GNEK13T9Y
We delivered the vehicle with the capacitor in the system, customer wanted to try this, cheapest way out. This vehicle had the same problem with the original alternator, a rebuilt and a new alternator, battery never went dead, hard to believe all three would h...
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