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Professional Automotive Repair Technical Discussions for July 13, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1999 Buick Park Avenue 3.8L motor mount VIN: 1G4CW52KXX Car came in for state inspection right motor mount was broken we replace the mount with a after market brand customer returned and said car had vibration on start up and in drive goes away in reverse. GM has discontinued this part tried two other brands with n... |
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| 1996 Cadillac DeVille 4.6L Class 2 data VIN: 1G6KD52Y6T Hi guys. Have a communication problem with this car. It's a no start with a IPC display with antitheht system problem and Prndl flashing and blower running high with key on. No communication with any modules except SRS which is on the Uart data line. Class 2 d... |
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| 2000 Chevrolet C3500 7.4L No Rear Brakes VIN: 1GCGC33J8Y rear brakes do not work. We have replaced the master cylinder and one brake line that had a hole in it. We have disconnected all brake lines and have blown shop air into all the lines, no restrictions found. we hooked up a vacuum pump to the rear brake line, t... |
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| 2000 Chevrolet Blazer LS 4.3L Hesitation, Stall VIN: 1GNCS13W4Y Vehicle came in unable to idle. Found the air injection check valve on passenger side bad. This burned a hole in the rubber elbow on the valve which then burned approximately 60 wires of the main harness. Basically all of the insulation melted off the wires an... |
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| 2000 Chevrolet Express 1500 5.7L MIL Lamp on VIN: 1GBFG15R6Y hi guys, o got another one here, is a chevy van with the 5.7l engine, with the p0300, and p0302, freeze frame shows it happens when is cold since this is an intermittent problem, when I erased the codes, and go for a drive, no current codes, or when here at id... |
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| 2002 Chevrolet Prizm 1.8L MIL Lamp on VIN: 1Y1SK528X2 this car came in with a no power complaint I could hear a vacuum leak replaced intake manifold gasket and cleared codes and that got rid of the vacuum leak but I still have a real bad flat spot on acceleration Trouble codes: P0171, P300M |
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| 2008 Chevrolet Express 1500 4.3L No Start VIN: 1GCFG15X78 First time the van came in it had a blown fuel injector #59 fuse. Replaced the fuse and checked the harness and sent it out. Came back same fuse for the inj's #59 blown again. All of the inj codes are being set when this happens p0201 - p0206 plus p0102 maf se... |
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| 1999 GMC C6500 Topkick C6H042 7.4L Backfire extended cr VIN: 1GDJ6H1D9X Vehicle came in from another shop with a customer complaint of backfiring and misfires. Other shop could not get vehicle to mis but was able to get backfire to occur. Came to our shop running fine, let sit over night tryed to start in morning vehicle had an ex... |
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| 2003 Saturn L300 3.0L Unknown VIN: 1G8JW54R93 This A/C unit has Auto temp control that works fine for about 20 minutes after a cold start. On a warm day the the A/C temperature out of the vent starts to rise a bit if left to the auto settings of 70 degrees. If you try to lower the temp on the control the ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet K2500 5.7L Misfire VIN: 1GCGK23R4Y ended up having to get an a/c delco set of wires to fix it. still cant explain the difference with unplugging the alternator but a high quality ignition cable set fixed the truck. as for the replies i dont fell like anyone read my description or my update i re... |
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| 2006 Chevrolet Express 1500 4.3L No Start, no fuel operation VIN: 1GCFG15X16 After all the input I received I come to find out that I had a bad coil pack that was sparking from the side of the body. I checked all the fuel pump connections wires, and so forth and chased it down to the coil pack was bad. Thanks everyone. |
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| 2009 Chevrolet Traverse LTZ 3.6L Tires VIN: 1GNEV33D59 Installed 2 matching Bridgestone tires and will be monitoring closely.Checked all replies and found nothing unusual.Closing for now but will update later.As always thanks for all the replies! |
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| 2008 Pontiac G6 2.4L Hesitation, Surge, MIL Lamp on VIN: 1G2ZG57B28 I tried to by pass the tcm but still no communication. I also checked the omhs across 6 and 14. And had 63.2. Then looking diagram for the data lines I saw the ecm wouldn't need jumper wires. So I unplugged it. And i could communicate with every thing. So i c... Trouble codes: U0073, U0100, U0121, U0140, B, 1370 (ign 1 power from air bag), U, 2107 (lost com with bcm from cluster). |
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