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Professional Automotive Repair Technical Discussions for June 28, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Chevrolet S10 2.2L Poor Idle Quality VIN: 1GCCS195X1 At idle the truck shakes violently like its motor mounts are bad. off idle it runs great. The idle vac is low. The customer says he went to start it up one morning and it "kicked" then he tried again and it started and idles poorly. I've visually checked timin... |
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| 2004 Chevrolet Silverado 3500 6.6L No Start VIN: 1GBJK39154 hi guys, truck was brought in for no start unless you spray it with starting fluid(i know) I have checked vacuum pull from pump,has 8" of vacuum. Vacuum tested supply line across engine to filter. if i prime filter it takes approx.9 mins to go from 10psi to 2p... |
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| 2005 Chevrolet Colorado Z85 LS 3.5L wheel bearing VIN: 1GCDT14625 Looking for some input on this, at our shop we do not do wheel bearings or rotors on the chevy Colorado or canyon, I guess at our other shop they attempted to do this and it cost the shop money. I am just wondering if I should start taking them or just stay aw... |
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| 2006 Chevrolet Uplander LT 3.9L pressure control VIN: 1GNDV33116 hello fellow car lovers. started with slipping 1st and harsh engagement all other gears with a surge going into over drive. pulled pan and found excessive material so recommended trans replacement.. customer agreed but wanted cheap so installed a used one. tha... |
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| 2008 Chevrolet Silverado 1500 WT 4.3L MIL Lamp on VIN: 1GCEC14X78 replace tcm already and programed replace speed sensor no results Trouble codes: P0700, P2534, C0055 |
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| 2001 GMC Sonoma SLS 4.3L MIL Lamp on, Mystery Misfire VIN: 1GTDT13W11 First the history. Lower intake lets go, customer takes to a friend who does the job, who does it right, changes the oil, takes it for a spin, now it has a crank sensor code, after the second sensor we get it. Take it out, it is scratched by the reluctor. We g... Trouble codes: P0300 (Misfire detected), P0304 (Misfire cyl 4) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Buick Park Avenue 3.8L compressor VIN: 1G4CW52K6Y Thanks for all who responded 2 my problem, come 2 find out it was the bcm, as suggested bye a few of you guys. Looked at the wiring and imfo going in and out, and there it was. The bcm was not telling the pcm that everything was fixed and could turn on the a... |
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| 2000 Cadillac Eldorado ETC 4.6L battery light VIN: 1G6ET1291Y Took everyones advice and installed oe alt. Vehicle worked for 2 days and came back with light back on. found red wire had no continuity so replaced wire also installed original alt plug back on. Ended up having to take plug apart and rework wires at alt conne... |
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| 1997 Chevrolet K2500 Cheyenne 5.7L Brake pedal VIN: 1GCGK24R2V Hey guys thanks for all the replies. Took the truck to a shop that had a tech 2 scan tool. $240.00 later, no difference. This truck has never had a good pedal. We have an 2002 w/ 4 whl disc and hydro boost, completely different system. But low brake pedal. Che... |
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| 1999 Chevrolet K1500 Suburban 5.7L No Start VIN: 3GNFK16R8X Just wanted to thank you all for the responses, I decided to scope the crank sensor when it cranked over longer than it should and my pattern just broke up and then was ok. So I replaced the crank sensor and took some of your advise and replaced the cap and ro... |
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| 1999 Pontiac Grand Prix SE 3.8L fuel pump VIN: 1G2WJ52K4X thank you all for your help and keeping me in the right direction. The power to the pcm was the key, eventhough the ecm sense fuse (10amp) was goood, the number 20 posistion in the c1 connector to the ecm which should have been bat+ with key on was only gettin... |
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| 2004 Saturn L300-3 3.0L torque converter VIN: 1G8JL84R94 Thanks for the replies. We have not repaired this vehicle at this point. Customer is reviewing his options. We did go a little further with diagnosis by tapping into the control circuit side of the TCC solenoid. Grounding the solenoid had no effect on the surg... |
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