95 cherokee overheating - Page 2

WrenchMonkey · 08-23-2010, 09:57 AM

Quote:

Originally Posted by mossyoaktj

...after he flushed it and put a new water pump in it its running way cooler than before..

Cool, it's always the last thing you try...

Quote:

Originally Posted by itbrokeagain

Is this a closed or open system?

95 would be open.

Robert

mossyoaktj · 08-23-2010, 10:35 PM

well still overheating and the whole coolant system is new. no time to mill the head

mossyoaktj · 08-23-2010, 10:39 PM

he said it stayed cool until the highway and then it overheated again, so he turn around to go home and once he got off the highway right back to runnin cool again.

itbrokeagain · 08-24-2010, 10:02 PM

There is a restriction somewhere in the cooling system. Let it sit and idle with the radiator cap off and the heat in the full on position. See if it burps any air. Make sure the thermostat is installed in the correct direction.

mossyoaktj · 08-25-2010, 01:39 AM

he says hes tried it it only overheat on the interstate. the head is goin to be milled this weekend hopefully

Hope Springs Hauler · 08-25-2010, 08:15 AM

Has he replaced the hoses? I happened to see somewhere that somebody was having the same symptoms and it was a weak rad hose collapsing when the motor was kept at highway speed and load.

itbrokeagain · 08-25-2010, 09:27 AM

Quote:

Originally Posted by Hope Springs Hauler

Has he replaced the hoses? I happened to see somewhere that somebody was having the same symptoms and it was a weak rad hose collapsing when the motor was kept at highway speed and load.

Agree. Or if it dosnt have spring in it, it can collapse. A cracked head is also possible

WrenchMonkey · 08-25-2010, 12:04 PM

Ooo, good idea. X3 on that lower radator hose.

It gets old and soft and will collapse.

Robert

08-23-2010, 10:35 PM	#27
mossyoaktj Join Date: Apr 2008 Location: moscow,ohio Posts: 245	well still overheating and the whole coolant system is new. no time to mill the head __________________ UNITED STATES MARINE 99 TJ, locked, long armed, creepy's

08-23-2010, 10:39 PM	#28
mossyoaktj Join Date: Apr 2008 Location: moscow,ohio Posts: 245	he said it stayed cool until the highway and then it overheated again, so he turn around to go home and once he got off the highway right back to runnin cool again. __________________ UNITED STATES MARINE 99 TJ, locked, long armed, creepy's

08-24-2010, 10:02 PM	#29
itbrokeagain Just Empty Every Pocket - CORE Member - Join Date: Feb 2007 Location: Amelia Posts: 1,435	There is a restriction somewhere in the cooling system. Let it sit and idle with the radiator cap off and the heat in the full on position. See if it burps any air. Make sure the thermostat is installed in the correct direction. __________________ 91 fj 80 on 37 Nitto Muds with a 10k winch. Cage and sliders coming soon.

08-25-2010, 01:39 AM	#30
mossyoaktj Join Date: Apr 2008 Location: moscow,ohio Posts: 245	he says hes tried it it only overheat on the interstate. the head is goin to be milled this weekend hopefully __________________ UNITED STATES MARINE 99 TJ, locked, long armed, creepy's

08-25-2010, 08:15 AM	#31
Hope Springs Hauler Join Date: Jul 2008 Location: Hamilton, OH Posts: 431 Images: 16	Has he replaced the hoses? I happened to see somewhere that somebody was having the same symptoms and it was a weak rad hose collapsing when the motor was kept at highway speed and load. __________________ 1988 Suzuki Samurai on propane FJ 40 axles (4.10) 5.14 tcase 36" TSL SX

08-25-2010, 12:04 PM	#33
WrenchMonkey Mechanical Animal - CORE Member - - Moderator - Join Date: Feb 2008 Location: Beechmont Posts: 1,883	Ooo, good idea. X3 on that lower radator hose. It gets old and soft and will collapse. Robert __________________ DIRTY DEEDS, DONE DIRT CHEAP Whatever doesn't kill you makes you stranger