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Professional Automotive Repair Technical Discussions for November 17, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Chevrolet Silverado 2500 HD 6.6L MIL Lamp on VIN: 1GCHC23183 Hey guys. I have a P0404 EGR performance code and need some insight. Vacuum pump generates 15-20 inches, all solenoids operate when commanded, vacuum lines intact , and when I command 100% EGR I get the MAF reading drop from 38 to around 20. The vacuum sensor ... |
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| 2003 Chevrolet Cavalier LS Sport 2.2L Rear defrost VIN: 1G1JH14F43 Checked both fuses to rear defrost.repaired burned out wire at left kick panel.when u push the button it clicks but no light and defroster doesnt heat up. Tried replacing unit with used one still the same thing.if i put power to purple wire coming from switch ... |
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| 2003 Chevrolet Silverado 2500 6.0L Reflash Issue VIN: 1GCHK29UX3 We are trying to do software updates on above vehicle. I keep getting a error message on the laptop M4404 please restart your interface. Have done it multiple times with no luck. Have called A/C Delco and they told my to call the Jbox manufacturer as they do... |
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| 2013 Chevrolet Equinox LT 2.4L No Start VIN: 2GNALPEKXD Was Brought In No Start, Scanning Modules, PCM No Commucation, All Other Modules Shown. Checked Power And Grounds To PCM. (OK) No Crank Or Start. Also Fuel And Temp Gauges Not Moving. Tried Another PCM After Testing Power And Grounds No Change. Thanks Trouble codes: U0100 |
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| 2001 GMC Jimmy SLE 4.3L battery battery draining when vehicule at rest I checked all the fuses ,all the relays and all the circuits for each item with multimeter and one battery lead disconnected and always had a 1 amp draw on meter...i disconnected the alternator and test with multimeter ba... |
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| 2006 GMC Sierra 3500 SLT 6.6L MIL Lamp on VIN: 1GTJC33206 Original repair customer came in with noisy turbo, no codes, wheel was hitting case. Replaced the turbo with a reman. Since then vehicle came back with code P0299, found aftermarket air and fuel filter, replaced with AC-Delco. Drove vehicle several times and c... Trouble codes: P0299 (Low turbo boost) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Cadillac CTS 3.6L No Start, Defective New PCM's VIN: 1G6DM57734 First of all let me thank all 7 who replied, what a Great Resource we have here! The 3rd ECM was a charm. I installed it then programmed it, using Tech2 Legacy pass thru, I'll say that is a much slower process, then performed the 10 minute key relearn procedur... Trouble codes: U1000 (Class 2 Comm Fault). |
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| 2004 Chevrolet Suburban 1500 Z71 5.3L driver door actuator VIN: 1GNFK16Z94 after may of hours found all 3 blend door actuators failed 2 aftermarket and 1 dealer part 4 door actuator worked just fine never set a code for for bad actuator thanks for all the help |
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| 2009 Chevrolet Uplander LT 3.9L Unknown VIN: 1GNDV33199 To close...this customer had the fluid/filter changed elsewhere before coming here. So, it is pointless for me to pull the pan for a visual. I clearly explained all the potential causes and his options stating that if I cannot reproduce the concern, I cannot ... |
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| 2012 Chevrolet Equinox LS 2.4L MIL Lamp on VIN: 2GNFLCEK1C Thank you everyone for your replies. I performed a continuity test on the fuel injectors. Spec is 1.9-2.3 ohms. All four injectors were out of spec with the lowest being 3.6 and the highest 10.7. I replaced all four injectors and reassembled everything. I clea... Trouble codes: P219A. |
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| 2002 GMC Sierra 2500 HD SL 8.1L no symptom, runs ok VIN: 1GTHK29G82 As usual awesome response! The general consensus was that the aftermarket program was locked which (I suppose copyright stuff) I believe was the case. The shop that sent it over supplied me with a reman PCM and it flashed without an issue. The Java version did... |
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| 2007 GMC Yukon XL 1500 SLT 5.3L #1 Cyl VIN: 1GKFC16067 So sorry for not knowing what the problem turned out to be. Customer decided to take vehicle to dealer. Dealer listened to the engine and told customer needs new lifters, $4000. We did not hear any valve noise. They never removed the valve cover to see if its ... |
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| 2011 GMC Sierra 3500 HD SLE 6.6L No Start VIN: 1GD423CL4B THANKS FOR REPLY. SORRY FOR 1 THING 2 INCHS OF VACCUM NOT 10. WELL END UP BEING PRIME PUMP.RESEAL IT. PRIMED IT START UP AND RAN .THANK YOU AGAIN. Trouble codes: P0087 (Frp too low), P128E. |
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| 2004 Hummer H2 6.0L Right Cv Axle VIN: 5GRGN23U04 Would love to say what happen with this Hummer but cant sent it to the body shop so i do not know what is the out come.. i do not deal with that body shop. |
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