I'm getting sporadic operation from my front and rear heater blower motors. When they quit, there is no fan at all and they both stop at the same time. They may come back on but I don't have any idea for how long.

Any clue where to check first would be a great help. I do need to check some wiring down on the front axle. I melted some of the insulation off a couple wires heating the oil pan w/ my Nepco cuz my block heater had failed and I needed help w/ a cold start fast.

My dash lights all work plus all the windows and interior lighting so its going to be something isolated to the blower motor circuit exclusively although both the front and back wiring must be good as they stop at the same time.

1996 Chevy Suburban, 3/4t 4wd Diesel

Thanks!

Dave

 

bump.... ideas anyone?

 

Anyone with any knowledge of the wiring harness on a 96 burb might be able to get me moving in the right direction.

 

For a vehicle in that era, I think your best bet would be an online subscription to ALLDATAdiy.com or Mitchell 1 DIY. Any factory service manuals have all been tossed by now.

 

Might try your local library for a FSM.