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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 22, 2018
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Open Help Requests for GM
Help Request Answers
1993 Chevrolet Corvette 40th Anniversary Edition 5.7L temp VIN: 1G1YY23P6P
Hi all in IATN land. Thank for taking your time to read this post I'm having one heck of a time with this Vette. It doesn't maintain duct temp. It starts out doing ok but as you drive, the duct temp will vary 15* over and under the set temp. I have tested ...
2003 Chevrolet Silverado 1500 5.3L No Start, Cuts out VIN: 2GCEK19T33
Thanks in advance for any help on this one. Vehicle came in a no start. This truck starts right up and stalls the second you let go of the key. Getting good fuel pressure. The scan tool can not communicate with any module (other than the door module). Chec...
2012 Chevrolet Cruze LS 1.8L no crank VIN: 1G1PC5SH8C
Thank you for taking the time to look at this request. This Cruze was towed in with a no-crank condition. With my MODIS I have a crank request at the PCM. The starter relay in the under hood fuse/relay block is good. I have a test relay with a rocker switc...
1998 Pontiac Grand Prix SE 3.1L Mechanical VIN: 1G2WJ52M0W
Does anyone have any good ideas as to how to remove this stubborn harmonic balancer bolt? Any tools, tips, ideas would be appreciated. Thanks
2008 Saturn Aura XR 3.6L Cuts out VIN: 1G8ZV57718
So as mentioned in Related Repair History the Complaint is that sometimes when using the Remote Start Feature starting the car with the KEY FOB Remote the car will start then stall within 2 seconds & sometimes not, as in it will start & stay running!? I ha... Trouble codes: U2105 (Lost Communication With ECM/PCM/VCM), U2105 (Lost Communication With ECM/PCM/VCM), U2105 (Lost Communication With ECM/PCM/VCM)

Fixes & Summaries for GM
Fix/Summary Answers
2007 Chevrolet Tahoe LTZ 5.3L Lifter VIN: 1GNFK13067
The VLOM manifold was the culprit. I pulled it and found the front oil seal to the intake lifter port was split and the plastic surround was cracked. Also found 5 of the forward most manifold bolts barely snug during removal of manifold. Hmmmm? Thanks for al...
2011 Chevrolet Suburban 1500 LT 5.3L engine block valley cover VIN: 1GNSKJE39B
Since also found the oil cooler line/hose assembly wet/leaking, customer decided to replace the line/hose assembly and monitor oil leak improvement. Will return vehicle for disassembly and further repair if leak continues to be enough of an issue. Will update ...
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