Electrical Mystery

[mach8]

The heater blower stopped working the last month, automatic and manual, then I went over a hard bump and it started working again.

This has happened several times since then, no fan, then a bump (the rear end bumping does it) and everythings fine!

Where's the best place to start looking? If there's a bad connection why would bumping the back end of the car do anything for the blower? Isn't all its wiring pretty much in the front of the car?

Any ideas?

 

[JMiles_T]

Intermittant Blower Motor Repair

 

[mach8]

Yeah, I looked at that. Tugged and twisted and it didn't seem to affect things.

The amp in the trunk is kind of loose, maybe somethings going on there because the key fob didn't work yesterday, thought the batteries went dead, but its working fine today.

Time to start working through the wiring harness............