Brought in on the tow truck, this vehicle died on the owner while cruising down the highway. . They were not able to restart it. I had a great time troubleshooting this one, and we learned a lot of good lessons on GM flex fuel vehicle! Some methods used...
Basic no start troubleshooting principals.
How to test a fuel pump.
How to check for injector pulse.
Fuel pump current waveform analysis.
How to test a variable resistor.
Sensor substitution using known value resistors.
GM Flex-Fuel system variables
How to prove out fuel gauge accuracy.
17 сен 2024