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Single Purple Wire in engine bay 1989 K1500

I'm tracking down a no spark condition on my 1989 K1500 5.7L . While probing around the distributor I came across this single wire plug with a purple wire coming out of the main harness. For the life of me I can't find where this plugs into. I don't know that it has anything to do with my no...
- johnsonmtz
- Thread
- Dec 2, 2023
- Replies: 19
- Forum: Engine Performance + Maintenance
J
'89 700R4 - Rebuild or Install Reman?

I had the 700R4 in my sons '89 K1500 rebuilt about 2 1/2 years ago. This was during Covid of course and the shops I knew were over 2 months out on their schedule and reman trannies were back ordered too. I was recommended to a small shop in the area and he could get to the rebuild the...
- johnsonmtz
- Thread
- Oct 9, 2023
- Replies: 11
- Forum: Transmissions
J
Brake! Warning on '89 K1500

I have an '89 K1500 with a constant BRAKE! warning on the dash. The truck had the classic mushy brake pedal and I read you can replace the OEM master cylinder with a unit from an '03 that will solve that issue. I made that swap a couple years ago and the pedal became very stiff after that, but...
- johnsonmtz
- Thread
- Sep 19, 2023
- Replies: 2
- Forum: Axles + Brakes
J
Backlighting for Climate Control and 4X4 shifter always on

The back lighting for the 4x4 floor shifter and the climate control module are on constantly in my '89 K1500 and will not turn off causing the battery to drain. The lights remain illuminated even when the truck is not running and key is removed from the ignition. The backlighting for the gauge...
- johnsonmtz
- Thread
- Jun 5, 2023
- Replies: 12
- Forum: Audio + Electronics