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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 30, 2013
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Open Help Requests for GM
Help Request Answers
1995 Chevrolet Corsica 2.2L Spark Control VIN: 1G1LD5543S
Vehicle came in with a seized motor (Walmart installed wrong filter). Installed a used engine from a 1999 Chevy Cavalier. The Head, intake, ect... Had to be used from the original engine. The lower end looked the same other than the original block had only a c...
2004 Chevrolet Trailblazer LS 4.2L torque converter VIN: 1GNDT13SX4
This Trailblazer has a bearing noise only when the torque converter is locked. The noise is very similar to a bad idler for a serp belt. I can observe converter with tech2 and amplify the noise using a chassis ear clamped on the trans and the noise definitely ...
2007 Chevrolet Silverado 2500 HD LT 6.0L Transfer Case Module VIN: 1GCHK23K77
Hey guys need some help on this. Customer came in with a message in the instrument cluster " service 4 wheel drive system" hooked the scanner up to it and i could not communicate with the tcsm( transfer case shift module) i can communicate with everything else...
1999 Pontiac Grand Am SE 2.4L No Start VIN: 1G2NE12T5X
this ones got me rattled. came in as a no start but almost would. low battery. charged battery. check codes with my mack scanner. had po300. engaged starter, acted flooded but did start, ran rough but cleared up. ran for a cpl minutes then just died. no restar... Trouble codes: P0300, P1626
2008 Pontiac Wave 1.6L MIL Lamp on VIN: KL2TD65648
This vehicle has been coming in since Feb,2012 with p2135 TP SENSOR 1-2 CORRELATION, I started off by clearing all codes and road testing. It never acted up so cust. took vehicle and in a few day's the SES LIGHT returned. I rescanned and found again P2135. I t... Trouble codes: P2106 (Throttle control system performance - throttle limitation active), P2110 (Tac system-forced limited eng speed), P2135 (Tp sensor 1-2 correlation), P2101 (Tac motor circuit range/performance)

Fixes & Summaries for GM
Fix/Summary Answers
2003 Hummer H2 6.0L shifting VIN: 5GRGN23U13
i want to thank all 7 replies from technicians who responded to my help. removed the solenoids and bench tested them w/ a power probe only to find out that they were good, so i decided to check for technical service bulletins and i found SB# 01-[...] that t...
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