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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 9, 2013
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Open Help Requests for GM
Help Request Answers
2004 Chevrolet Trailblazer LS 4.2L Gears VIN: 1GNDT13S84
Vehicle came in when hot low line pressure.Changed oil pump and converter.Checked line pressure cold 65psi and you can feel when shifted from P to R and to D. When warm there is no feel P to D to R and pressure is 35psi.Unplug trans connector and pressure stil...
2005 Chevrolet Blazer ZR2 4.3L maf VIN: 1GNCT18XX5
Looking for direction to make sure it is the map sensor. Frequency is close at idle and 2500. Map sensor is not affected by tapping or wiggling connector. Rpm 620 1500 2500 maf hz 2420 3100 3780 tps 0 3.5 7.5 map psi 5 4 4 maf gm/s 5.32 9.7 15.2 What directi...

Fixes & Summaries for GM
Fix/Summary Answers
2006 Cadillac CTS 3.6L Poor Idle Quality, Hesitation, Misfire VIN: 1G6DP57736
timing chain and one cam drive bad thanks to all. never again though a real problem car Trouble codes: 0300 (0302 -), 0302 (0303 -), 0303 (0304 -), 0304 (0306 -), 0306.
2003 GMC Sierra 1500 SLE 4.8L dead battery VIN: 1GTGC13U23
thanks for all the input on this issue technicians. it turned out to be a very intermittently sticking ac clutch relay. since replaced , no dead battery issues at all.
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