GM Automotive Technicians Technical Discussion and Fixes for Jul 14, 2014 - iATN (Members Only)

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Open Help Requests for GM

	Help Request	Answers
	2002 Buick Rendezvous CX 3.4L ac pressures another shop replaced AC compressor condenser receiver drier and evacuate it and charge system pressure on high side was low pressure on low side was normal I replaced expansion valve and high side pressure normal but now low side pressure low and go's into a ...	View
	2005 Buick Rainier CXL Plus 5.3L air suspension VIN: 5GAET13M75 This vehicle was in a few weeks ago for another problem (was stuck in 4WD, had to replace transfer case shift motor. Transfer case is working fine now) and we heard the air suspension compressor in the rear running every few minutes. We told customer about com...	View
	1993 Chevrolet Corsica LT 3.1L Air Bag Light VIN: 1G1LT53T9P I have a air bag light that I can not turn off. There was about 12 codes stored in the module. I am able to clear all codes except the crash data 51 and 52. The vehicle has not been in an accident. I have found a used derm module for the air bag system. I woul...	View
	2002 Chevrolet Tahoe LS 5.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNEK13Z72 Injectors are not at fault.This is a mechanical problem.Valve springs are not broken and valve travel is normal.Compression readings as follows:cyl1-dry 130psi wet 160psi 75psi running. cyl2-dry 125psi 145psi wet 75 running. cyl3-[...] 210psi wet [...]... Trouble codes: P0300, P0200	View
	2006 Chevrolet Cobalt LS 2.2L cluster, warning lights VIN: 1G1AJ55F66 Hi. Intermitent problems are sometimes the worst cases to solve. The customer says that sometimes the warning lights lights on when starting engine. Supposed to be brake light and theft light, and may be others... few times later, the lights turns off and the ...	View
	2012 Chevrolet Express 2500 6.0L No Start VIN: 1GCWGFCB7C gotta 2012 van, no start, natural gas. no codes, fuel guage at half full. can start it with starting fluid in intake , never worked on a cng before , really don't no where to start, any input would be helpfull, thanks.	View
	2007 GMC Yukon XL 1500 SLE 5.3L compressor VIN: 1GKFK16337 After the initial repair the system worked and acted naturally. Good cooling and good pressures. The truck came back last Wed. with the compressor now locked up and the belt burned off. I replaced the compressor for the 2nd time (these are new compressors)and ...	View
	2007 GMC Yukon Denali 6.2L leftgate VIN: 1GKFK63827 this liftgate is not opening nor closing when the buttons are pressed. i tested the power liftgate motor it is working fine. you can hear the motor is atempting to to open but it stops. any help will e appreciated	View
	2003 Pontiac Montana 3.4L Hesitation, Misfire VIN: 1GMDX03E53 Ok so here's the problem, this vehicle belongs to a friend of mine. He came up to me one day and tells me his van has a misfire, ok sounds easy enough. Put the scanner on and took a look, no fault codes found. Took it for a road test and it drove, perfect even...	View

Fixes & Summaries for GM

	Fix/Summary	Answers
	2000 Buick LeSabre Limited 3.8L CV Joint VIN: 1G4HR54K3Y THANKS TO AL [...] I CAN THINK OF WAS THE AXLES WERE SETTING ON THE SHELF AND IT TOOK AWHILE FOR THE GEASE IN THE INNER TIEPOD JOINT TO WORK IN	27
	2008 Chevrolet Uplander 3.9L Drivers side axle seal VIN: 1GBDV13148 Thank you for replies. Axle was replaced from accident and wrong one installed. New axle and seal and problem fixed. Customer had be going back and forth with body shop and finally was told of this. They had been dealing with body shop for 10 months.New axle...	7
	1998 GMC Sonoma SL 4.3L engine VIN: 1GTCS14X9W Replacing the injector assembly took alot of vibration 75% away,also the rear trans mount was like a balloon,replaced that and it smoothed out 98% .Last thing was the oil was overfull by 5 quarts,the Ford dealer forgot to drain the oil and just added more.Cha...	20
	2008 Pontiac G6 2.4L steering torque sensor VIN: 1G2ZG57B68 thanks to all who responded.It was the steering column.When I initially ordered parts through britain chevrolet they told me the torque sensor was serviced by replacing the motor.Luckily they took that part back because it was teir mistake.The torque sensor is...	6

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