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Professional Automotive Repair Technical Discussions for March 18, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1979 Cadillac DeVille 7.0L engine This engine has been just rebuilt. Primed the oil pump and oil gallies before starting. After running for 15 min. the engine died. Found the dist. gear schreaded. The dist. drive on the cam and the timing chain show no oil lube. The problem here is that I have... |
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| 1999 Cadillac Seville SLS 4.6L starter VIN: 1G6KS54Y5X another shop has replaced the starter 3 times in 3 weeks. the original starter also had a broken nose. I haven't pulled this starter yet. Wondering before we pull it down if anyone has run into this problem. It is the Northstar 32v engine |
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| 2003 Cadillac CTS 3.2L MIL Lamp on VIN: 1G6DM57N33 Keeps setting P0341-have verified cam sensor and crank sensor signals with scope-good square waves at the pcm-swapped out cam and crank sensors anyway,removed timing belt and verified cam timing-installed and programmed used ecm-light was on before original en... Trouble codes: P0341 (Cam sensor error) |
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| 1997 Chevrolet Monte Carlo Z34 3.4L No Start VIN: 2G1WX12X2V Minn rust bucket drove into shop with rear suspension probs, sat for a year. Go to move no start, no communication with brain, no codes. Thought initial no fuel pressure was fuel pump for sitting so long, replaced but no difference, no power to pump, no power ... |
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| 2004 Chevrolet Tahoe LS 5.3L MIL Lamp on VIN: 1GNEK13T04 Hi everyone,i need your help with this vehicle. After replacing both app sensors and thottle body, p1125 still coming up and vehicle reduced power message shows while problem occurs.(intermittend). Thanks in adavnce. Trouble codes: P1125 (App sensor intermittend problem) |
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| 2006 Chevrolet Malibu SS 3.9L MIL Lamp on VIN: 1G1ZW63156 I have not had a lot of time with the vehicle as the customer takes it and brings it back but has anyone ever had to replace the ecm for this condition. Alldata has very bad wiring diagrams for this vehicle and any help would be much appreciated. The diagrams ... Trouble codes: P0463 |
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| 2006 Chevrolet Express 3500 LS 6.0L No Start VIN: 1GBJG31U86 This vehicle cannot start from the key , we can start it by the starter relay. Also we have no communication the the abs unit and the body control module. Also customer stated that the reduce power sign comes up . Any help will be aprreciated. Trouble codes: U1000 (Class 2 data link fault) |
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| 2009 Chevrolet Silverado 1500 LS 4.8L calipiers VIN: 3GCEC13CX9 Vehicle came in with ABS and Traction control light coming on intermittently. Had only one stored DTC, C0161 Brake switch plausible. When the warning lights come on the brakes lock as if the e-brake has been set and the vehicle will not move. I then have to le... |
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| 2001 GMC Savana 3500 6.5L No Start, Cuts out, Stall VIN: 1GDJG31F81 Ok I so done with this van. Back in 2011 the van came in with a no start, hesitating and cutting out scenario. We did the usual tests and we couldn't find anything wrong. Since the injection pump was already replaced and there weren't any codes to direct us to... |
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| 2006 Hummer H3 3.5L Poor Idle Quality, Misfire, MIL Lamp on, Reduced power VIN: 5GTDN13606 Ok GM guys need some input. Vehicle came for a water pump customer stated when he tried to drive it to us it was running bad and will not go over 40 mph. when i started it it was running good drove and accelerated good pulled codes mil codes P0030,P0036,P2101.... Trouble codes: P0030 (O2 heater control bank 1 sensor 1 P0135 heater performance), P0036 (O2 heater control bank 1 sensor 2 P0141 heater performance), P2101 (throttle actuator position performance), P1516 (throttle actuator control module throttle actuator position performance), P1682 (ignition 1 switch circuit 2), P0300 (misfire detected) |
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| 2004 Saturn Vue Red Line 3.5L unknown VIN: 5GZCZ63414 This Saturn Vue came from collision shop. It was hit hard in Left rear. Collision shop put used left rear suspension in. The customer took car from them and came back with complaint under hard acceleration vehicle shudders / vibrates real bad. The car was brou... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Chevrolet Tahoe LS 5.3L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1GNEK13Z52 well i dont no if my buddie was blind at the time he looked at this vechile or what he had it towed over to my shop and i had on of my guys take a look at it. soon as he revomed the valve cover he found the problem 2 broke valve springs i dont no how my buddie... |
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| 2003 Chevrolet S10 LS 4.3L Misfire, MIL Lamp on VIN: 1GCDT13X53 thanks for all the replies; turns out we had a slightly bent push rod which was only found after removing it. You would have never known that it was in that condition unless it was remove and rolled on a flat serface! We still can't believe it. Once again than... Trouble codes: P0301. |
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| 2011 Chevrolet Express 4500 6.0L No Start, Stall Thanks to Thomas from California. Thoams you hit it right on the head. Melted Fuel pump terminal at the fuel box plug. Thanks again. |
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| 2005 GMC Envoy XL SLE 4.2L battery VIN: 1GKET16S15 THIS VEHICLE IS NOT TOTALY FIXED. WE REMOVED THE CIRCUIT BREAKER FOR THE POWER SEATS THAT WAS VERY HOT TO THE TOUCH AND OUR BATTERY DRAIN HAS GONE AWAY. THE VEHICLE HAS SAT FOR THREE DAYS NOW AND STARTED FINE. WE ARE GOING TO GO AFTER THE POWER SEATY ISSUE NEX... |
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| 2007 Pontiac G6 GT 3.9L oil pan or rear crank seal VIN: 1G2ZH35197 I received some good ideas.One tech mentioned to spray white foot powder on area, I did not do this but is an excellent idea. Another said to use a boroscope, which I did, but was no help, not enough room to see above oil pan lip. Another mentioned it might b... |
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