My 96 jeep doesnt blow hot air until a long time
#1
Member
Thread Starter
My 96 jeep doesnt blow hot air until a long time
Winter time is here and I notice my heater isnt blowing hot air at all. I will take about an hour before it starts blowing even warm air. During summer I did a full radiator flush, changed the water pump, fan clutch and thermostat. I know people suggest the heater core a lot, what should I be checking to determine if that is the issue or not?
#6
Member
Thread Starter
Trending Topics
#8
CF Veteran
Join Date: Nov 2010
Location: In the middle of Minnesota!
Posts: 5,804
Received 99 Likes
on
88 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
I'd get some actual temp data. Your dash gauge may be right. But it might not be too.
Get a point and shoot infrared thermometer (inexpensive under $20 and widely available) and point it directly at the thermostat housing of a hot engine. What is that temp?
Also get temp data from both hoses, inlet and outlet of your heater core.
Cab heat is directly related to coolant temperature. Once you start snooping around, you will likely find the primary culprit.
Is your radiator cap new(er)? Often ignored, very important.
But yes, that heater core might be in play here.
Get a point and shoot infrared thermometer (inexpensive under $20 and widely available) and point it directly at the thermostat housing of a hot engine. What is that temp?
Also get temp data from both hoses, inlet and outlet of your heater core.
Cab heat is directly related to coolant temperature. Once you start snooping around, you will likely find the primary culprit.
Is your radiator cap new(er)? Often ignored, very important.
But yes, that heater core might be in play here.
#9
CF Veteran
Do yourself a favor and replace whatever thermostat you put in there with a proper Mopar 195 degree stat.
#15
CF Veteran
Last edited by robertj; 03-01-2018 at 11:52 AM.