heater temp fluctuates | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! Once registered you can join the Elite Explorers to eliminate ads from the website.

heater temp fluctuates

fireftr

Well-Known Member
Joined
October 22, 2001
Messages
165
Reaction score
13
City, State
strongsville,ohio
Year, Model & Trim Level
'05 Limited 4.6
:fire: Just got back from a trip in my '92 and noticed the heater temp wouldn't stay set. My wife kept playing with the blower switch, either full high, or off. Needless to say, the trip wasn't much fun - trying to constantly adjust for comfort. She thinks the temp should be adjusted with the blower speed. Anyhow, has anyone experienced this, and what did you find?
 






Jason_25

Elite Explorer<br>ECX Member
Joined
November 26, 2000
Messages
5,339
Reaction score
6
City, State
New Bern, NC
Year, Model & Trim Level
'95 Explorer "Expedition"
What was your engine temp during this time? If it was out of whack as well, it could be your thermostat sticking open.
 






Alec

Elite Moderator
Moderator Emeritus
Joined
April 25, 2000
Messages
15,979
Reaction score
1
City, State
Houston, Texas
Year, Model & Trim Level
2008 JK
could be the thermostat, or the heater control valve. However, some amount of blower and temp variation is normal. For instance, my heat will get warmer with engine temp and will also blow more as rpms go up. So when I floor it on the highway with the heat on I get toasted!
 






Top