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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 4, 2020
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Open Help Requests for GM
Help Request Answers
2014 Buick Encore 1.4L Heater ( cabin) VIN: KL4CJASB0E
This Encore has no coolant flow through the heater core. Took the inlet hose off at the heater and "connect" it to the coolant tank, has no flow with the engine running. Pulled the water pump to inspect and found no problem. Replaced it anyway " just becau...
2001 Chevrolet Silverado 1500 5.3L Obd monitor incomple VIN: 1GCEK19T91
No code. Obd monitor for air pump is not ready. Have good flow at both exhaust manifold when air pump is on. Engine temperature is normal. No exhaust leak. Test drove for 485 miles and still air pump is not ready. Anyone have this headache before ??

Fixes & Summaries for GM
Fix/Summary Answers
2007 GMC Sierra 1500 Classic SL 5.3L No Start, Stall VIN: 2GTEK19B07
First off sorry for the delay, we had to shut down for a little while due to covid. The entire issue was the g102 ground i fixed. I just did a quick repair using a crimp connector and my back up crimping pliers (my wire repair stuff was at home). The crimp ... Trouble codes: P0300 (Random misfire detected), P0030 (HO2S Heater control circuit), P0053 (Bank 1 sensor 1 heater resistance range performance), P0134 (Low O2s activity bank 1).
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