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Professional Automotive Repair Technical Discussions for February 3, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1994 Cadillac DeVille 4.9L heater VIN: 1G6KD52B2R Vehicle has heat on passenger's side only. After engine has warmed-up, upper radiator hose is hot. Heater inlet hose is hot and return heater hose is warm, making me believe that heat is being transfer to the heater core. Checked basics like coolant level, el... |
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| 2013 Cadillac XTS Luxury 3.6L ride control VIN: 2G61S5S34D Sorry for the lack of info on this car, I am working with a Snap On Modis scan tool and there is not a lot of info on this. This car came in with the rear dragging. I took the lines off and smoked the bags. Both bags were leaking. So I replaced the airbags. ... |
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| 1996 Chevrolet C3500 5.7L No Start VIN: 1GBJC34R3T I'm trying to run this flow chart as per alldata, and I am confused as to weather or not they are screwing with me, or if this is right. first step says with key on to check terminal A for power. Next step says to connect my test light to B+ with key off, and ... Trouble codes: P0337 (ckp sensor circuit low frequency) |
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| 1996 Chevrolet Lumina 3.1L Starting VIN: 2G1WL52M1T Customer came in with check engine codes P0401, p0102 and Security light always on. Customer stated its been on for months.I remove the egr valve for inspection, egr valve was stuck open. Replace egr and monitor the maf sensor, check out good. Ran vehicle for ... |
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| 2007 Chevrolet Silverado 1500 LTZ 5.3L No Start, Hesitation, MIL Lamp on VIN: 1GCEK19077 Customer came in and the truck was having issues on a cold start. He said every morning he would have to crank for 5-10mins to get it to fire. Checked spark on every cylinder,good blue spark, checked fuel pressure when cold and it sat at 45psi key on and 50psi... Trouble codes: P0175 (Fuel trim system rich bank 2) |
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| 2008 Chevrolet Avalanche LS 5.3L Lifters VIN: 3GNFK12378 AFM on cylinder 4 collapsed and wiped out the cam. I replaced all lifters, cam, VLOM manifold as I normally do. Have done several of these with no issues ever. However get this one started up and dead misfire on cylinder 6. Do a compression test and its good a... |
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| 2008 Chevrolet Silverado 1500 LT 5.3L Engine I have this one that is misfiring on all 4 of the DoD cylinders. I have verified spark,injector, and no valve spring issues,also compresion is good on all 8 cylinders at 145-155. It does misfire only at idle and above 1500 rpm it runs great. The heads,timing ... |
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| 2010 Chevrolet Silverado 1500 LT 5.3L control head VIN: 3GCRKSE31A The only lights that do not work are the mode lights. For example: face, floor, defrost, etc. As well as the fan speed knob. This unit has 3 big knobs. It has little blue led indicators on each knob that work. The a/c button will light up when depressed. As we... |
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| 2011 Chevrolet Malibu LS 2.4L Stall VIN: 1G1ZA5EU4B Vehicle was towed in, stalled on customer while driving. Engine starts and stalls immediately. Check engine light on, code p0011 intake camshaft position sensor performance. Performed frequency and signature test on the camshaft position sensor with labscope. ... Trouble codes: P0011 |
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| 2002 Saturn Vue 2.2L dashboard VIN: 5GZCZ23D72 This vehicle presented running at idle and otherwise with most all warning lights on though for no apparent reason, upshift light, oil change due, brake warning lamp, MIL, (no codes present)fuel low, high beam on, low coolant. There must be a common reason for... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1985 Chevrolet C10 Scottsdale 5.0L No Start VIN: 2GCDC14H9F I FORGOT TO ADD TO REQUEST THAT THE ROTOR WAS NEW, THE SHAFT IS TURNING & HAS GROUND STRAP ON COIL.AS I SAID I HAD 9 VOLTS TO COIL WHEN CRANKING BUT JOHN FROM ALABAMA SAID I NEED 10.5 VOLTS CRANKING, SO THIS MORNING I TRIED TO START NO SPARK PUT BATTERY CHARGE... |
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| 2004 Chevrolet Silverado 2500 HD 6.6L driveline VIN: 1GCHK232X4 Had driveshafts sent out and had them balanced and they also replaced all u-joints, when I checked them with drive shafts removed they felt fine, no binding or tight spots or rust coming out of them. vibration is gone now dealing with a drone, found a tsb for... |
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| 2007 Chevrolet Silverado 1500 LTZ 5.3L MIL Lamp on VIN: 1GCEK19J57 I want to thank everyone for the help, the problem was in the fact that the shop that replaced most of the parts and could not figure out the issue, before sending it to us. When they called the parts store they gave the information, and the salesman looke... Trouble codes: P069E, P0191 (Fuel rail pressure sensor performance). |
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| 2007 GMC Yukon XL 1500 SLT 5.3L Cuts out, MIL Lamp on VIN: 1GKFC16047 Thanks for all the help. I used an oil filter adapter from the dealer to check the oil pressure at the filter compared to the sender, and the pressure was only about 10lbs off. I was able to talk to an instructor from GM and found out that I dont have an oil p... Trouble codes: P3400 (Cylinder deactivation performance). |
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