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Professional Automotive Repair Technical Discussions for January 18, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick Regal LS 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2G4WB55K1Y This vehicle came in aprox. 10 days ago. Customer states that it runs very poor on first start of the day. When it warms up it will run better. MIL on arrival, P0410 P0102 p0300. Block test ok, plugs were wet & intake was leaking so replaced lower intake gaske... |
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| 2004 Chevrolet S10 LS 4.3L heat VIN: 1GCDT13X04 Heat comes out the vents except when AC is on or in the off position. I believe it is a vaccum problem as there is no vaccum at the connector behind the glove box. There is vaccum at the vaccum vaccum tee near the power brake booster. Does any one know where t... |
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| 2005 Chevrolet Silverado 3500 6.6L No Start, Low Fuel Pressure VIN: 1GCHK33235 Truck was driven in. We replaced a leaking fuel injection pump. Now the truck will not start. FRP is aprox 200 psi and the computer is wanting aprox 5,800 psi. No codes. We did perform the fuel bleed procedure. |
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| 2009 Chevrolet Corvette 6.2L pulleys VIN: 1G1YY25W69 Belt drive system still has a squeal after changing all the above item. no noise @ idle, but @ about 2000- 2500 rpm there is a very audible squeal that seen to be coming from the water pump pulley. lower crank pulley had some rust in the belt groves and cleane... |
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| 2012 Chevrolet Impala LS 3.6L MIL Lamp on VIN: 2G1WF5E36C Returning lean codes post purge valve repair are proving difficult to prove out a cause. Intake gaskets are new, cannot find any vacuum leaks with smoke or carb cleaner. fuel trims are as follows: Idle bank 1 20, bank 2 30 2000 rpm bank 1 18, bank 2 27 cruisin... Trouble codes: P0496 (Purge flow with no command), P0171 (Bnk 1 lean), P0174 (Bnk 2 lean) |
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| 2012 Chevrolet Equinox LT 3.0L Trac Light VIN: 2GNFLEE59C Check engine light and Trac light come on at random times and cause no running or brake problems or trac problems. The only way to turn lights off is to turn the ignition off and restart the car. The lights may stay off a few minutes or several weeks. I found ... |
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| 2011 GMC Sierra 2500 HD Denali 6.6L No Start VIN: 1GT125E82B Hi guys need little help. this truck came in on hook stalled while driving. no history or current code when go to additional code data there a lot of code I think those codes does not mean anything. well any way. while cranking fuel pressure slowly climbs to 1... |
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| 1989 Oldsmobile Delta 88 Royale 3.8L Surge, Cuts out, Stall, MIL Lamp on VIN: 1G3HN54C5K This guy came in (Disabled veteran/friend) that sends me alot of work. He had 5 codes in the computer and the top one was 34. I drove the car and it was bucking on acceleration. I unplugged the mass air flow sensor and it drove normal(I don't have much experie... Trouble codes: 26 (quad driver failure) |
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| 2002 Saturn LW200 2.2L coolant resivoir, radiator VIN: 1G8JU84F12 Have you run into this before? There is what looks like oil in the coolant reservoir. There is no coolant in the oil. This model does not have an engine oil cooler and the transmission fluid is at level. We did notice that the oil level was a bit low and the c... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet Astro 4.3L dome lights VIN: 1GNEL19W1Y There was a whole range of recommendations that folks sent me and I appreciate all the help. Accessory outlets, pinched wiring, door switches, nothing jumped out at me and the customer was unable to leave it longer, so when they are able to return it I will ge... |
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| 2012 Chevrolet Traverse LT 3.6L MIL Lamp on VIN: 1GNKVJED8C Finally fixed this one. Noticed the purge solenoid was excessively noisy and it was mounted on Bank 2. Bank 2 fuel trims were consistently higher than Bank 1. Blocked off solenoid, fuel trims came into normal range and stayed there. Replaced purge solenoid. Su... Trouble codes: P0171 (Fuel System Lean), P0174 (Fuel System Lean). |
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