Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

1988 4 runner heater controls

Thread Tools
 
Search this Thread
 
Old 02-22-2008, 04:37 PM
  #1  
Registered User
Thread Starter
 
91toybeater's Avatar
 
Join Date: Jul 2006
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
1988 4 runner heater controls

I got the task of repairing what others had fixed. I'm wondering which cable goes to the door over the fan motor. I would call it the recirculation/fresh air door? After having the heater core installed by a "pit crew" now the truck won't get warm inside. When you push the lever over to hot (red), the door over the fan motor opens also. I'm not sure if this is correct operation or not but doesn't seem logical. I looked at the FSM and couldn't find any info on where the cables go. Can someone open up their glovebox and look at the fan motor and tell me which lever is supposed to work that door?
Thanks
Paul
Old 02-22-2008, 07:33 PM
  #2  
Registered User
 
the_supernerd's Avatar
 
Join Date: Sep 2002
Location: Sonora, CA
Posts: 1,527
Received 19 Likes on 15 Posts
The flap by the fan motor is for fresh air/recirculation. The hot/cold lever controls a flap on the heater core housing and the heater control valve. It is probably not getting hot because the cable is going to the wrong flap.
Old 02-22-2008, 07:42 PM
  #3  
Registered User
 
jasond's Avatar
 
Join Date: Jul 2006
Posts: 268
Likes: 0
Received 0 Likes on 0 Posts
Make sure that the valve on your firewall is opening also (the one that shuts off the flow of coolant to the heater core).
Old 02-22-2008, 07:49 PM
  #4  
Registered User
 
farmerj's Avatar
 
Join Date: Dec 2004
Location: Central Minnesota
Posts: 469
Likes: 0
Received 0 Likes on 0 Posts
I have had this issue since I got the truck...
Never have been able to fix the issue so....

Tag to follow the results.
Old 02-23-2008, 12:12 PM
  #5  
Registered User
Thread Starter
 
91toybeater's Avatar
 
Join Date: Jul 2006
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Many thanks gentlemen

I found the dash vent actuator was not connected and two cables were mixed up. She gets good and hot now. Thanks for the information. It's Newcastle Brown Ale time.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MMA_Alex
86-95 Trucks & 4Runners (Build-Up Section)
25
04-18-2017 05:07 AM
coryc85
Misc Stuff (Vehicle Related)
6
09-09-2015 06:24 AM
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
07-06-2015 01:20 PM
HRDC0R19
86-95 Trucks & 4Runners
3
07-05-2015 06:43 PM



Quick Reply: 1988 4 runner heater controls



All times are GMT -8. The time now is 10:20 PM.