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Professional Automotive Repair Technical Discussions for July 13, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1999 Chevrolet C2500 Suburban 7.4L Compressor VIN: 1GNGK26J7X The Ot was a black unit with .072" opening. Since the high side is so low, I thought the OT has insufficient resistance. I replaced it with a GM yellow OT with a .062" opening. While charging, I stopped at 3# 8 oz; the low side was 48 and high was 125. The out... |
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| 2000 Chevrolet Express 3500 LS 5.7L No Start, Blows Eng-1 fuse VIN: 1GAHG39R1Y Vehicle died while being driven and was towed in. No codes stored. Data showed no RPM signal nor any data coming from CMP or MAF. Wiring diagram led me to Eng-1 fuse which was blown. Replaced fuse and started engine. Check engine light stayed off. This is a co... |
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| 1998 GMC K1500 Suburban SLE 5.7L Hesitation, Cuts out VIN: 3GKFK16R2W This high mileage suburban stalls or badly hesitates on acceleration but the problem only presents itself when engine or compartment is not to temp. Once warmed or on hot days the problem does not present. O2 sensor disconnect from cats cats appear to not be p... Trouble codes: 171 (bank lean), 174 (bank lean) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Chevrolet Tahoe LTZ 5.3L No Start, Misfire VIN: 1GNFK13017 This Tahoe has ran with out a problem for 200 miles. On a guess I replaced the CMP sensor but it did not want to restart after I installed it. After using carb spray to get it to start we parked it outside and didnt have time to work on it for a few days. I re... Trouble codes: P0300 (Misfire), P0106 (Map sensor). |
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