iATN Member GM Auto Repair Tech Exchange for June 3, 2008

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Open Help Requests for GM

	Help Request	Answers
	2002 Buick Rendezvous 3.4L battery power\starting Hello everyone, This is my sisters fine automobile. She has said that, once, last winter, she turned the key, no start, and the radio reset to 12:00. Started fine just after that with no problems. Now with our warmer weather...same issue...only every day. The...	View
	1998 Cadillac Seville 4.6L heads can't find torque specs for cylinder heads for this car on alldata if anyone could e-mail me them would be appecated thanks e-mail address is [[...]]	View
	1994 Chevrolet Pickup 6.5L No Start Hello Everyone, I'm trying to help a good customer. He has this Chevy diesel that wont't start at times. Cranks ok (new batteries) glow plugs and controller all good. I don't work on diesels so I am asking for some advice. Is the something that is common probl...	View
	1995 Chevrolet Blazer 4.3L No Start, Stall Hello all and thanks for reading this. I have 1 that i should be able to fix and for some reason i must be overlookin something it will start and stall sometime and sometimes it won't start. Sometimes it will run for 5 min then it will die here's the funny thi...	View
	1996 Chevrolet Suburban 5.7L high line pressure Cannot get freeze frame code and data to clear using Modus or battery disconnect. Appears remaining code 1860 is causing high line pressure.Code does not show up when scanned,except in freeze frame only.	View
	1996 Chevrolet Cavalier 2.2L No Start, Stall vehicle came in as a no start/stall. we have had this vehicle for over 2 weeks without any problems. customer came to pick up vehicle and can you believe it, the thing would not start. pushed this thing into the shop, checked for spark: none. noticed that with...	View
	1996 Chevrolet Tahoe 5.7L Engine Hello everyone, I just got this truck handed to me. It has been to 3 other shops. So far from what the customer told me he was driving when it bucked and lost power. He pulled over and it idled fine, but when he stepped on the gas it would start to die. Now it...	View
	2004 Chevrolet Silverado 6.6L ipc,doorlocks hello to all you gm techs out there, this truck has a wild problem.on the prndl indicator.there is a line under what ever gear you are in. on this truck it doesn,t show up in the park,second,or nuetral position.when this happens the doors will not automaticall...	View
	2005 Chevrolet Silverado 4.3L pedal feel vehicle came in with to sensitive brakes test drove peeled self off of windshield and found front calipers locked started at master cyl breaking lines open to relieve pressure no change replaced calipers test drove vehicle appeared ok customer took for approx ...	View
	2006 Chevrolet Silverado 4.3L MIL Lamp on, dlc connection Brought this pickup in due to no 3rd or 4th gears. Connected scanner and cannot get any communication with the scanner. I am using a new genysis with the latest software update. I have battery voltage at the dlc and all of the fuses are good. Have tried commun...	View
	2002 GMC Savana Special 5.7L Rear brake locking up, wheel speed sensors Rear brakes locking up, rear brakes have been checked and adusted multible times, no ABS codes stored. Brake system uses dynamic rear brake perssure control, useing abs module for perssure control, as well as a comination valve. Problem is most noticeable whe...	View
	2006 GMC Sierra 6.6L Hesitation, Cuts out, lack power freeze frame data for vehicle is as follows engine rpm 2709 vss 64mph app 1 95% app 2 95% actual fuel rail psi 18188.8 psi baro pressure 13psi des egr position 0% ect sensor 187degF egr position varance -100% run time 00:08:12 iat 2 109 degF ign Volts 13.61 ma... Trouble codes: p0087 (fuel pressure too low).	View
	2002 Pontiac Grand Prix 3.8L abs communication Customer stated abs light on intermintly and abs activation light braking. The abs activation maybe a dirty sensor, feels just like that. My main concern is the light, I cant get my scanner to communicate and cant get any codes.(scanner does communicate with p...	View
	1992 Saturn SC 1.9L Poor Idle Quality, MIL Lamp on Hi Guys, This car came in running very rich and check engine light is on with code 26 Quad driver B fault. So far I followed out the trouble chart and came up with the EGR solenoid was bad so I unhooked the vaccum to the EGR and no change, also noticed the eng... Trouble codes: 26 (Quad driver B fault).	View
	1993 Saturn SL2 1.9L No Start car come in no start, has fire to spark to spark plugs, fuel pressure ok, unplug one fuel injector very weak noid light, injector plug-in has power on both sides, unplug another injector (random)same result, unolug a third or forth and you have flashing noid l...	View

Fixes & Summaries for GM

	Fix/Summary	Answers
	1960 Cadillac SEVILLE 5.0L Mechanical THANK YOU TO ALL THAT REPLIED. YOU WERE ALL RIGHT. THE BEST PLACE FOR ENGINE PARTS SEEMED TO BE WWW.EGGE.COM. STEVE AT EGGE HAS BEEN VERY HELPFUL.THANKS AGAIN ANDREW	15
	1997 Chevrolet Suburban 6.5L Charging Hey All,Sorry for the bad info..I let my fustrations get the best of Me when I saw that truck on the back of the flat bed.The alt was charging one of the batteries and not the other.It ended up being an bad battery.I just assumed the alt assy took a poo-poo.Th...	10
	1998 Chevrolet Cavalier 2.4L abs module-no communication i replaced the motor pack and the problem was corrected. this repair was complicated from the beginning because i missed the TSB which had the proper diagnostic procedure for condeming the motor pack and the no communication situation between the EBCM and the ...	9
	2006 Chevrolet Silverado 5.3L A/C compressor Thanks for everyones input. One in particular led me to the broken clutch power wire in the loom above the idler arm near the oil pan. Green wire was broken. Thanks a million!	8
	1993 GMC Jimmy 4.3L Excessive Emissions, Poor Fuel Economy, MIL Lamp on Replaced cpi unit with a used one [inj regulator and lines with the fuel sprayers] fuel trim 124 and o2 switches. Not sure what is wrong with old unit, could not see any signs of leakage.Fuel pressure still the same. Just very happy its fixed. Thank to all tha... Trouble codes: 45 (rich exhaust).	10
	2003 GMC Sierra 6.6L lights I installed a flasher from Napa and fixed everything.I don't Know what was wrong with the GM ones that was installed in the truck before we started working on it.Thank for the help.	10
	2002 Pontiac Aztek 3.4L all guages I FOUND THE CONNECTOR IN BACK OF THE INSTRUMENT CLUSTER TO HAVE A BAD CONNECTION. I REPAIRED IT AND THAT FIXED THE CAR. THANKS TO ALL WHO RESPONDED.	5
	2003 Saturn Vue 3.0L Steering Wheel Thanks to all the great tips, you've provided plenty of information for the repair of this vehicle. The problem was the BCM sure enough after having it repogrammed by the deale car no longer has a hard steering wheel and gauges dont go crazy.	6

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