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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 2, 2009
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Open Help Requests for GM
Help Request Answers
1992 Chevrolet K1500 Cheyenne 5.7L Master Cylinder VIN: 1GCEK14KXN
Hello GM Truck Techs, I hope I can find someone thats experienced this. This truck (1/2 ton)4wd will crack the master cylinder housing just before where the line goes on near the roll pin like clockwork about every 2 months depending on how much its drove. I h...
1995 Chevrolet Tahoe LS 5.7L master cyl VIN: 1GNEK13K5S
Tahoe came in for a hard pedal. Determined power booster was bad. Rear shoes also metal to metal. Installed master cylinder, power booster, shoes, rear hardware, new drums, new rotors and pads. Truck now has a soft, spongy pedal. Bled system numerous times. Re...
1998 Chevrolet Tahoe LS 5.7L Misfire VIN: 1GNEK13R1W
compress is low on #5cyl.about 130psi. Trouble codes: P0300
2001 Chevrolet Impala LS 3.8L No Start, MIL Lamp on VIN: 2G1WH55K01
HI out there I am in need of help from you gm tecs or pcm networking tecs out there this is the kind of challenging we all love to figure out but pull are hair out trying to fix it this car comes to me from another shop that has spent 3 or so weeks on and has ... Trouble codes: U1000 (data line), U1016 (loss of pcm data line), P1631 (theft code)
2001 Chevrolet Impala LS 3.8L battery drain VIN: 2G1WH55K41
the battery goes dead over night I pulled fuse for ecm,bcm,I/C and draw of 1.98 amp goes away I disconnected ecm with no change if I disconnect bcm and icm the draw goes away with just the I/C disconnected there is .48 amp draw which I would consider normal co...
2005 Chevrolet Impala 3.4L TempGauge/ECM VIN: 2G1WF52FX5
The fans work correctly, all fuses are good, waterpump, thermostat and ECT sensor have been replaced. ECM thinks engine is OVERTEMP as soon as the engine is started and goes into Limp Mode even though engine has NOT run long to get HOT. It is as if the engine ...
1992 Geo Storm 1.6L Poor Idle Quality, Cuts out, Stall VIN: J81RF2366N
This is my personal car.Car starts and idles fine when cold.After it heat up to almost operating temp. it idles up & down.It has no codes and datastream seems ok. See all I REPLACED IN PREVIOUS REPAIRS. When coming to a stop car will stall everytime, but alway...
1996 GMC C1500 Sierra SL 4.3L MIL Lamp on VIN: 1GTEC14W5T
Hello, This truck runs and drives great however it keeps throwing a PO300 on the misfire history counter it shows, #1 24000 misfires #2 5 #3 19 #4 1976 #5 12 #6 22 when excellerating it may show 1 or 2 misfires on #1 and #4 but on deacceleration it sh... Trouble codes: P0300

Fixes & Summaries for GM
Fix/Summary Answers
1995 Chevrolet Corvette 5.7L No Start VIN: 1G14422P7S
Hello Fellow Tech's I thank you ALL for your replys. Fuel pressure was good and carb. spray did not change anything. Although the fuel injectors were out of spec., this engine did run before. I thought about the timing chain, but I did check the over lap at TD... Trouble codes: 24 (vss), 34 (map), 44 (Lean Exhaust), 54 (Skips over).
2000 Chevrolet Express 1500 5.7L fuel ga VIN: IGNFG15R5Y
this veh has gone home to burn full tank of fuel and untill then i`ll replace the assembly in tank unit and let all know from there on.all have been very useful but job will not be done till next week thanks again
2005 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S55
thanks to all who replyed every one was right replace the air valve and no more p0410 some times somebody has to be out side the box to see what is going on all i can say is that you guys saved my fanny (being nice) again thanks to all who replyed john Trouble codes: P0410.
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