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Prev Professional Automotive Repair Technical Discussions for February 15, 2013
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Open Help Requests for GM
Help Request Answers
2004 Chevrolet Trailblazer LS 4.2L 4x4 VIN: 1GNDT13S84
i have and intermittant problem with the four wheel drive that happens about once every week or two for the customer. what usually happens is when they start backing out of a parking stall the transfer case will shift by itself into 4 low. the light goes to 4 ...
2006 Chevrolet Impala SS 5.3L Out Side Temp. VIN: 2G1WD58C46
We have replaced 2 heater control heads from gm, brand new. Part number [...]. Out side temp worked before repairs and after, all we get is ---, no temp reading. We drove the car over 30 miles and still no setting of temp. We can use our modis and see temp ...
2006 Chevrolet Express 2500 4.8L MIL Lamp on VIN: 1GCGG25V56
Costumer dropped off car for check engine light. Found code p0300 random multiple misfire code. Performed crank/cam variation and misfires have stopped. Addressed p0455 smoke evap system and ran service bay test with snap on solus ultra. Vehicle completely sea... Trouble codes: P0455 (p0300-), P0300 (p0440-), P0440
2010 Chevrolet Express 2500 4.8L No Start VIN: 1GCZGGBA0A
Vehicle came in no crank. Scanned and fiound codes for ims. Found service bulletin bulletin no.: 08-07-30-020e. Replaced ims with known good one from frineds shop. Still having same problem no change and thioughts thanks very much Trouble codes: P182E, P1915 (Ims no parl//neutral sig during startsymptom 00)
1997 GMC K2500 Sierra SL 6.5L Unknown VIN: 1GTGK29F7V
Costomer states baught truck few months back and it never had ttc lock up but Shifted fine. Well now when u put in to drive it takes a min and higher rpms to get the trans to engage first gear. Also does same thing then u come to complete stop. So costomer sai...
2007 GMC Acadia SLT 3.6L unknown VIN: 1GKEV33727
Vehicle was towed in & could not be driven due to transmission failure. We replaced transaxle with a remanufactured unit and it works great but on road test we detected a noise (moan??) in center of vehicle when turning. It seems to get worse the more the vehi...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Silverado 2500 HD 6.6L rear housing VIN: 1GCHK29183
Thanks for all the replies. I did try to replace the rear cover in the truck but didn't have any luck with everything staying in place. I than pulled the trans and stood it on it's bell housing. Everything goes back into place very well then. ON A SIDE NOTE!...
2005 Chevrolet Silverado 1500 SS 6.0L Oil Pressure VIN: 1GBHC24U95
I did do a pressure test, and after 40 minutes of idling, the pressure stayed at 30 psi, with engine temp at 206-208. The customer needed his truck back ASAP, so approved a new sending unit, and took the truck. I will, today check the wiring as suggested, just...
2006 Chevrolet Impala LS 3.5L Heater VIN: 2G1WB58K96
Thank you to all that offerd help. I received relpies covering flushing core, new t-stat, blend door problems as well as filling procedures. The coolant in this was clean & heating temps were perfect above idle, so I ruled out themostat & blend door issues. ...
2003 Saturn Vue 3.0L Mechanical VIN: 5GZCZ53B63
with the right tools the job is pretty easy. i used the gates set with tensioner and idlers. the gates set has great instructions just follow them to the letter, dont forget the last part where you roll the engine over several times to check each bank of cams...
2007 Saturn Outlook XR 3.6L abs VIN: 5GZER23767
for once something was easy. realighned the sub frame and a alignment light out
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