Boiling Coolant Issue
#1
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Boiling Coolant Issue
I figured I would get some opinions before I started throwing money at it. The coolant is boiling on my 99 xj and I’m struggling to figure out why. It does not leak anywhere other than out the overflow once it gets hot. The motor just had a head gasket put in, the radiator is only a few months old. And the radiator cap is brand new. Motor runs great and does not get over just slightly above 210 in temp on the gauge at least so far. I have not ran it hard since I obviously do not want to make anything worse. Less than 50 miles since the head gasket replacement which I’m very confident was done correctly by a an awesome mechanic I know.
#4
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
#5
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
#6
CF Veteran
Trending Topics
#10
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
#11
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
#12
CF Veteran
Join Date: Jun 2016
Location: Santa Clarita California
Posts: 2,138
Likes: 0
Received 277 Likes
on
243 Posts
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
Have you checked the A/C condenser and radiator to see if it fins got plugged up when you went into the water ? and how is your fan clutch working also look at the e fan .
#13
Newbie
Thread Starter
Join Date: Jul 2019
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
I sprayed the condenser and radiator out really well with power washer and it seemed pretty clean. I have the electric fan wired up to be switched by hand and I usually run it all the time when I’m wheeling to keep things cool. I usually don’t ever have the need to run the e fan just cruising down the road since it’s getting lots of air.