Block heater - lower rad hose
Thread Starter
Junior Member
Joined: Oct 2010
Posts: 72
Likes: 0
From: NW Oregon
Year: 1993
Model: Cherokee
Engine: 4.0 HO
No response so maybe there aren't many of us who use or need these. Bought it at Autozone for about $20. Install took about 45 mins (plus I changed the t-stat since I had to drain the coolant anyway). Have used it for a couple of cold mornings so far. Seems to work great. Starts warm, gets enough defroster heat right away and instant take-off. Has it's own thermostat. A decent alternative to a freeze plug heater.
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
I used to use them years ago but then switched over to freeze plug heaters.
Should work okay; be sure the two clamps are sufficiently tight as there are now two more places to leak coolant.
Should work okay; be sure the two clamps are sufficiently tight as there are now two more places to leak coolant.
CF Veteran
Joined: Feb 2010
Posts: 2,095
Likes: 3
From: Cove, OR
Year: 1993
Model: Cherokee
Engine: 4.0
Lower radiator hose heaters work ok in the winter, but can cause over heating problems in hotter weather. The restriction caused by the heating element in the lower hose slows coolant flow through the radiator causing over heating.
CF Veteran




Joined: Nov 2010
Posts: 5,841
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
That is interesting; I never thought about the "restriction" element. Will have to do some research on that.
Trending Topics
Junior Member
Joined: Jun 2010
Posts: 48
Likes: 0
From: Birmingham, AL
Year: 1998
Model: Cherokee
Engine: 4.0
tjwalker, where did you get your freeze plug heater from? I moved from Alabama to Pennsylvania for school and the jeep is not liking starting in the mornings and after school. How much of a pain is it?
Thread
Thread Starter
Forum
Replies
Last Post
hogluvr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
Sep 16, 2015 08:15 AM
Gauge
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
15
Sep 15, 2015 07:52 PM
HappyTrails
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
6
Sep 14, 2015 08:54 PM
Cherokeegirl89
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
Sep 11, 2015 06:13 PM
Azzy
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
Sep 8, 2015 10:49 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)



