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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 3, 2012
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Open Help Requests for GM
Help Request Answers
1993 Cadillac Fleetwood 5.7L lean condition VIN: 1G6DW5271P
This vehicle started out with an overheating condition caused by a ruptured heater core hose, that was repaired and has no overheating issues now. On the subsequent test drive it was noticed that the O2 reading would steadily drop to .000 and the fuel trims wo...
2004 Cadillac Escalade ESV 6.0L ac wont engage VIN: 3G4FK66N94
Customers states ac works on and off checked Freon level was low evacuated and recharged now doesnt work at all has codes BO159 for ambient sensor shows -40 ordered one from dealer has 4.4 volts and ground signal won't be here for couple of days also code BO22...
1961 Chevrolet Corvair Truck 95 2.4L clutch VIN: 1R124S1175
this is beyond my years...thanks in advance for reading this! I have a corvair that refuses disengagement. from all i can gather this is a later style clutch?? in that the flywheel is recessed and the p.p. is diaphram finger style with ring gear. the disc is 9...
1995 Chevrolet Lumina LS 3.1L Stall VIN: 2G1WN52MXS
this car came in with intermitten stalling, had massive amount of codes, 36,41,42,14,15,33,34,51,13,44,45,21,85,87. the codes 51,85,87 basicaly said to check for updates or replace ecm, i replaced ecm twice,didnt fix anything, checked power and ground, all tes... Trouble codes: 36 (ic 24x sig error), 41 (est line error), 51 (ecm prom error), 85 (prom error), 87 (eeprom error), 21 (throttle position high)
2002 Chevrolet Blazer LS 4.3L internal VIN: 1GNDT13W62
good afternoon fellow knuckle smashers.so i have in my shop my mistress.i married her back in march when i replaced her engine due to spun rod bearing.she has returned 3-4 times for cel on p0300 set with misfires on cylinders 1&4.complete tune up performed a m...
2002 Chevrolet Silverado 1500 5.3L brakes VIN: 2GCEK19T12
hello everyone, happy day before fourth. need some help with a chevy truck that activates the abs at slow speeds . i know about cleaning the sensors and have done that. the abs light was on and a c0265 code was in it. after researching code decided to replace ...
2004 Chevrolet Silverado 2500 HD 6.0L Performance VIN: 1GBHC29U94
Vehicle came in with a complaint of loss of power. P0300 was the only stored code. Cylinder 1 and 3 are consistantly misfiring at idle. If you bring the RPM just above 1100 RPM the misfire goes away. I have replace the intake gaskets per the GM bullitin and ch...
1999 GMC Yukon Denali 5.7L No Start VIN: 1GKEK13R7X
No start, no spark. Tried coil and cam sensor, no change. Replaced crank sensor with aftermarket part and engine started, ran good for two weeks and then quit again. Replaced crank sensor with Delco part, still won't start. Sometimes will throw one spark when ...
1995 Pontiac Grand Am SE 2.3L Hesitation VIN: 1G2NE15D4S
Greetings to all this car has a very bad hesitation at times.i did notice it happens when the car goes into closed loop the o2 sensor stays at 450mv the fuel integrator drops to 0 and then the car will stall.it starts right back up no problems until it goes to...

Fixes & Summaries for GM
Fix/Summary Answers
2000 Cadillac Seville SLS 4.6L security VIN: 1G6KS54Y0Y
I didn't really fix the car but did discover the bcm was more than likely at fault but the customer decided to just live with the light on occasionally since it has no affect on starting. Thanks again for everyones response & have a happy 4th!
1990 Chevrolet Cavalier Z24 3.1L No Start
after installing bad injectors , i went to wrecking yard and got injectors that ohmed good and installed them ,started right away,,, if not gm injectors i will not be replacing with reman. on these anymore,,,thanks for all help...
2004 Chevrolet Trailblazer LS 4.2L cruise VIN: 1GNDT13S34
needed a new computer installed sent to dealer to reprogram works fine now
2005 Chevrolet Equinox LT 3.4L LF axle seal VIN: 2CNDL73FX5
Thanks to all for helping out with this!! The carrier in the trans itself doesnt seem to have any play in this particular case and the axle appears to be ok. We installed the shaft without the seal in and were able to move the axle shaft quite a but at the out...
2005 Chevrolet Astro 4.3L Instrument Clutch VIN: 1GCDM19X85
Hello Feller Tech. Thank you for the support and advise, I finally neil down the problem, It was a 40 Amp fuse circuit wire crack by Fuse Box(under hood, joint it back, every went back to normal. Thanks again.
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