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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 27, 2009
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Open Help Requests for GM
Help Request Answers
1998 Cadillac DeVille 4.6L Alternator
One for you Caddy Tech's out there.Got this 98 DeVille Elegance with a no charge condition and alternator has been replaced twice with reman from Advanced.My understanding of this system is trigger signal comes from IPC and should be either 5V,10.5V,or 12V.I h...
1988 Chevrolet Corvette 35th Anniversary Edition 5.7L cooling VIN: 1G1YY3180J
customer states. he's had the vehicle for 2 years and it's consistantly overheated when temp over 88 deg with ac on in stop and go traffic only. if under 88 no problems. can reach 250 deg before he shuts off ac and temp then cools off.i performed the following...
1989 Chevrolet Corvette 5.7L No Start, Surge VIN: 1G1YY2287K
Hey everyone. this car was towed in just after the owner bought it. he said it ran but had no power and then it died and would not restart. replaced faulty fuel pump. car ran good with no problems and was returned to the customer. a couple of weeks later it re...
1996 Chevrolet Cavalier 2.2L anti theft VIN: 1G1JC1243T
car towed in for no start. found no injector pulse, noticed theft light was on steady all the time never goes out. tech decided to replace ipc then lock cylinder. after lock cylinder was replaced a b1014 r code unprogrammed came up. code will not clear. car cr...
2002 Chevrolet Impala LS 3.8L No Start VIN: 2G1WH55K92
Hello again techs! This Impala cranks and starts okay 80-90% of the time, otherwise it won't crank over. Turn the key and nothing happens. No power to 'S' terminal on the starter. Checked starter relay and there was no ground at the relay to send power to the ...
2003 Chevrolet Suburban 1500 LT 5.3L radio VIN: 1GNFK16Z73
This Suburban has a am/fm cd player that stores cd's within itself. Everything works except I can't get any sound from the system. Also the door chime doesn't work. I have a tech II and thought something got turned off somehow but everything seemed OK. I "borr...
2004 Chevrolet Trailblazer LS 4.2L AC Blower Operation VIN: 1GNDS13S24
AC blower motor operation intermittent until of late. Now it is completely inoperative. When AC select button depressed and blower speed position selected, a DTC peep occurs within a few seconds and ABS light will illuminate. With Snap On MT2500 attached AC co...
1995 GMC C1500 Sierra SL 4.3L Hesitation VIN: 1GTEC14Z1S
hi all and thanks in advance for your help. this truck is driving me crazy. I know that the hesitation is being caused by the egr not functioning properly but i can`t figure out why.the egr has been replaced twice and when i command the selenoid or put direct ...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Cadillac DeVille 4.6L Electronic VIN: 1G6KD54Y1V
thanks to everyone that replied. GM discontinued this switch, I got 2 defective aftermarket switches Ended up going to a savage yard to get a GM switch. Thanks again IATN
2000 Cadillac Escalade 5.7L radio VIN: 1GYEK63R5Y
checked everything ended up being a smoked bcm all were good replies new bcm fixed the radio and interior lights
1999 Chevrolet S10 LS 4.3L radio VIN: 1GCCS19X6X
Thanks everyone I followed the information I was given and got the 2 three digit codes from the radio and then tried the phone #'s supplied unfortunatly for some reason it would not give the unlock code after trying for an hour I called the dealer I use and fo...
1999 Chevrolet S10 LS 4.3L Misfire VIN: 1GCCS19X6X
thanks all first thing I did was remove egr valve check it clean it and just for fun capped it closed and drove it. I still had the missfire but not quite as bad. so as it had just gotten one of those fantastic never have a problem carter fuel pumps in it I re... Trouble codes: P0300 (multiple cyls miss fire), P0339 (ckp sensor intermittant).
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on, P0106 Map sensor VIN: 1GNDT13S14
Most replies were to clean the throttle body. We cleaned out the throttle body and code will not come back . Who would have thought ? Thanks for all replies ! Trouble codes: P0106 (MAP sensor performance).
2003 GMC Sierra 1500 SLE 4.8L cranks VIN: 1GTEK19V03
Hello and thanks to all who replied. I honestly am not sure what fixed the truck. We changed the Crankshaft sensor and Ignition switches. After it still wouldn't start we started inspecting everything including the recently changed horn. After removal of the l...
1996 Oldsmobile Cutlass Supreme 3.1L compressor VIN: 1G2WRT5685
thanks ron, right on. On these cars u have to remove the maf and iat sensor with the inlet hose to get to the charging ports, would not engage because iat reading -40. thanks
2001 Pontiac Grand Am SE 2.4L pass lock security system VIN: 1G2NF52T11
Thanks to all who replied .The resistor in the circuit did the trick for now. Thanks again
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