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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 30, 2019
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Open Help Requests for GM
Help Request Answers
2013 Chevrolet Spark LT 1.2L compressor VIN: KL8CD6S99D
Compressor won't activate, will work when feed power. The evap sensor reads 5 volts and did not change with new sensor. The evap sensor is connected to the body control module and the sensor gets ground but no reference voltage. I believe it to be a bad bo...
2014 Chevrolet Cruze LT 1.4L Hesitation, Low boost VIN: 1G1PC5SB7E
Car came feeling sluggish-would shift through gears 1-3 and hang in 4th gear up to about 4000 rpm and wouldn't shift until you let off accelerator. Noted a low power condition especially on hard acceleration. Initally suspected a transmission issue-repl... Trouble codes: P0299 (Engine Underboost), P2227 (BARO/Barometric Sensor Performance)
2003 GMC Sierra 2500 HD SLE 6.6L A/C Compressor VIN: 1GTHK23143
When we received the pickup we checked proper charge on the A/C system. Checked and compressor clutch doesn't come on. you can jump the relay and it works. Also you can command it with the computer. Checked continuity in all wires - tested good. Jumped low...

Fixes & Summaries for GM
Fix/Summary Answers
2002 Chevrolet S10 2.2L All VIN: 1GCCS14512
We found the compressor shaft broken & a new compressor with tube & receiver is the fix! As far as the "dirty" orifice tube I meant dark screen in color but no visible particles. Thank you all for your help as I don't have a vast experience in ac work but I'm ...
2014 Chevrolet Sonic LS 1.8L Unknown VIN: 1G1JA5SH9E
It was the thermostat after all, didn't want to believe it, but we all know how that goes, a nearly new or even brand new part can be faulty. Tested for power at connector on stat, battery voltage was present, Modis scanner allows output control of thermostat...
2004 GMC Sierra 2500 HD SLE 6.6L AC Pressure VIN: 1GTHC24294
The Clutch Pressure Cycle switch mounted to the Accumulator fixed it. This was replaced. Once the Compressor cycled properly HS came up to 180-190. LS still runs 24-30 but compressor now cycles on and off about every 30-40 seconds. With state trucks it is an...
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