Running Hot!
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
Bought the XJ in October, I did new hoses and a T-stat in the middle of Winter to keep it running, and a full flush of the system, that's it. Just bought a new Radiator and Water pump today. I found out it is the water pump, when idling or really low speed it would "freeze up" and not circulate fluid. Then when I'd rev it higher and drive normally it would free up and circulate and the temp would fall like 40 degrees.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Bought the XJ in October, I did new hoses and a T-stat in the middle of Winter to keep it running, and a full flush of the system, that's it. Just bought a new Radiator and Water pump today. I found out it is the water pump, when idling or really low speed it would "freeze up" and not circulate fluid. Then when I'd rev it higher and drive normally it would free up and circulate and the temp would fall like 40 degrees.
Last edited by freegdr; Apr 14, 2011 at 02:51 PM.
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