what could be making the icm keep going out? it's dies when put into reverse, also the temp gauge hasn't worked scence I dropped the transmission to replace the front pump, it back fires when it goes

Asked by Sep 21, 2015 at 01:18 AM about the 1994 GMC Sierra 1500 C1500 SL Extended Cab LB

Question type: Maintenance & Repair

2 Answers

65,535

Replacing the ignition control module fixes it for a while? If so, is the dielectric grease being applied to the bottom of the module? Also if the temp. gage was working, go back and check the connection to the sensor.

1,355

check the cap and rotor. also check your ground cables look for wires pinched by the bell housing

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