heater fan blowing fuses
Thread Starter
Junior Member
Joined: Oct 2014
Posts: 41
Likes: 0
From: millsboro,de
Car: 1986 firebird
Engine: 305 v8
Transmission: auto
Axle/Gears: 2.73 ?
heater fan blowing fuses
good morning everyone , problem is the other day i used car and had the heat on and fan on high speed . had to go in house for something so i turned car off. 20 minutes later went back out to car and started car up no blower working,rrieddiff speeds nothing,checked fuse - blown. put another one in & it blew right away ? unhooked fan on firewall fuse still blew,unhooked switch still blew. kinda lost after that . can someone please help with some suggestion. THANKYOU AND MERRY CHRISTMAS !!!
Joined: Nov 2010
Posts: 5,892
Likes: 84
From: Mantua NJ
Car: 1 Owner 1986 TA with a WS6 package
Engine: 5.0 EFI
Transmission: THM700R4
Axle/Gears: 277 Posi Speedo
Re: heater fan blowing fuses
Here's some info on testing the heater.This is from the 86 Firebird manual
Supreme Member
Joined: Jan 2009
Posts: 2,314
Likes: 115
From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: heater fan blowing fuses
had that problem with a 1987 celebrity-a wire chaffed through underhood was the cause...
Thread Starter
Junior Member
Joined: Oct 2014
Posts: 41
Likes: 0
From: millsboro,de
Car: 1986 firebird
Engine: 305 v8
Transmission: auto
Axle/Gears: 2.73 ?
Re: heater fan blowing fuses
FOUND PROBLEM it was a thermodisc 48t in control head ! had to jump it with a inline fuse. cannot find part anywhere. merry christmas
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