HEATER PROBLEM?
12-12-2011 | 12:47 AM
#1
Thread Starter
Newbie
Joined: Dec 2011
Posts: 7
Likes: 0
From: Lubbock, Tx
Year: 1988
Model: Cherokee
Engine: 4.0 Straight 6
HEATER PROBLEM?
ok so today i changed out my thermostat to a 205f so my engine could get to temp, well it kinda worked but it seems like the heater is not giving me all it can, also i have already cleaned out the core and the lines are new, any other suggestions?
12-12-2011 | 07:20 AM
#2
CF Veteran
Joined: Aug 2011
Posts: 1,031
Likes: 3
From: Blue Springs, MO
Year: 1993
Model: Grand Cherokee
Engine: 4.0L Laredo
Some Jeeps have a valve that closes to prevent water from entering the heater core. If yours has that, you might check to see if it's working properly. Maybe it's stuck closed or clogged.
12-12-2011 | 10:41 AM
#3
CF Veteran
Joined: Jun 2009
Posts: 2,173
Likes: 0
From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
x2, need to know the year of your jeep to know which setup it has. BTW, 205 is a hotter than stock thermostat...
12-12-2011 | 08:25 PM
#5
Junior Member
Joined: Dec 2011
Posts: 30
Likes: 0
From: Lake Stevens, WA
Year: 1990
Model: Cherokee
Engine: 4.0L I-6
12-12-2011 | 08:30 PM
#6
Senior Member
Joined: May 2010
Posts: 882
Likes: 1
From: MI 48642
Year: 1996
Model: Cherokee
Engine: 4.0
You should have a heater control valve correct? If you redid all the lines, there is a chance you forgot to hook the vacuum line back up, or the valve is jacked up as suggested above.
12-12-2011 | 10:28 PM
#7
CF Veteran
Joined: Jun 2009
Posts: 2,173
Likes: 0
From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
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