Heater doesnt work 88 4runner---help im freezing!
#1
Registered User
Thread Starter
Heater doesnt work 88 4runner---help im freezing!
Ok, so-- I went to get my truck back from sub zero temperatures and the blower doesnt work. I thought, oh, probably the fuse. Replaced the fuse for the blower behind the glovebox and the blower has only 1 speed now--all the way on. Anyone have any experience with this problem? should I replace the switch assembly or the blower assy? or both!
let me know, im very cold!
T
let me know, im very cold!
T
#2
Registered User
Check the resistor coils. They are located near the blower motor. They look like little coiled springs. If they appear to be broken then installing a new set will fix you problem. When the heater is all the way on, it uses direct power to the blower motor. When it is on a slower speed, the power goes through one of the resistors to slow it down. I would doubt that your problem is in the switch. The blower motor is probably fine because it works at full speed. If the resistors are not broken then I think you should check the relay. I am not sure exactly how it is wired without looking at a wiring diagram first. Go to www.autozone.com if you do not have a repair manual to find one.
Last edited by the_supernerd; 01-04-2005 at 11:02 PM.
#3
you nkow whats wired? my truck had no heater for awhile... then a couple weeks later, i turned it on, and it was all on.. no middle speed..... then a week later it was back to normal... i dont get it...
#4
Registered User
I looked at a wiring diagram of your heater and it appears that the resistors are linked together. If the third highest speed resistor breaks then none of the slower speeds will work.
Last edited by the_supernerd; 01-04-2005 at 11:31 PM.
#6
Registered User
They are near the blower motor, toward the firewall and the driver's side. This site should give you some information:
http://www.4crawler.com/4x4/CheapTricks/Blower.shtml
http://www.4crawler.com/4x4/CheapTricks/Blower.shtml
Last edited by the_supernerd; 01-05-2005 at 12:21 AM.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
ashersullivan88yota
86-95 Trucks & 4Runners
24
01-18-2022 05:37 PM
crashburnoveride
86-95 Trucks & 4Runners
1
07-10-2015 06:39 AM
madxman21
86-95 Trucks & 4Runners
2
07-09-2015 10:26 AM