My 1990 jeep cherokee over heating, already change water pump, stat and
relay, help anyone? its also making a knocking sound from the engine???

Thanks

 

knocking sound? - what sort of plugs you got in it, not a bit too hot?

"ylop" <fusion1169@aol.com> wrote in message
news:09d4d73f2c1eb7d2addc7b43665f3d39@localhost.ta lkaboutautos.com...
| My 1990 jeep cherokee over heating, already change water pump, stat and
| relay, help anyone? its also making a knocking sound from the engine???
|
| Thanks
|

 

knocking sound? - what sort of plugs you got in it, not a bit too hot?

"ylop" <fusion1169@aol.com> wrote in message
news:09d4d73f2c1eb7d2addc7b43665f3d39@localhost.ta lkaboutautos.com...
| My 1990 jeep cherokee over heating, already change water pump, stat and
| relay, help anyone? its also making a knocking sound from the engine???
|
| Thanks
|

 

How long does it take to overheat?
If it takes awhile then maybe you have a bad new thermostat or a bad
radiator (maybe fins clogged with debris).
Some have converted to an open radiator system when they had to purchase a
new radiator, but I chose to keep my closed one stock.

Does the radiator get hot and does the electric fan come on?

Did you get all of the air out of the cooling system. Kinda hard to burp
some of these cooling systems. <g>
Oh and they sell backward pumping water pumps (one for the I6 engines with
V-Belts instead of the serpentine belts). I hope you were not sold the
wrong pump. :-(

I would hate to think engine, but my cylinder head was cracked on a core
engine I purchased to have rebuilt.

later,
dave AKA vwdoc1
88 XJ 4.0 auto


"ylop" <fusion1169@aol.com> wrote in message
> My 1990 jeep cherokee over heating, already change water pump, stat and
> relay, help anyone? its also making a knocking sound from the engine???
>
> Thanks
>

 

How long does it take to overheat?
If it takes awhile then maybe you have a bad new thermostat or a bad
radiator (maybe fins clogged with debris).
Some have converted to an open radiator system when they had to purchase a
new radiator, but I chose to keep my closed one stock.

Does the radiator get hot and does the electric fan come on?

Did you get all of the air out of the cooling system. Kinda hard to burp
some of these cooling systems. <g>
Oh and they sell backward pumping water pumps (one for the I6 engines with
V-Belts instead of the serpentine belts). I hope you were not sold the
wrong pump. :-(

I would hate to think engine, but my cylinder head was cracked on a core
engine I purchased to have rebuilt.

later,
dave AKA vwdoc1
88 XJ 4.0 auto


"ylop" <fusion1169@aol.com> wrote in message
> My 1990 jeep cherokee over heating, already change water pump, stat and
> relay, help anyone? its also making a knocking sound from the engine???
>
> Thanks
>

 

How is the bearing on the fan clutch?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

ylop wrote:
>
> My 1990 jeep cherokee over heating, already change water pump, stat and
> relay, help anyone? its also making a knocking sound from the engine???
>
> Thanks

 

How is the bearing on the fan clutch?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

ylop wrote:
>
> My 1990 jeep cherokee over heating, already change water pump, stat and
> relay, help anyone? its also making a knocking sound from the engine???
>
> Thanks

 

How is the bearing on the fan clutch?

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

ylop wrote:
>
> My 1990 jeep cherokee over heating, already change water pump, stat and
> relay, help anyone? its also making a knocking sound from the engine???
>
> Thanks