89 overheating at high speeds
#32
CF Veteran
Join Date: Jun 2011
Location: Southern Idaho
Posts: 1,023
Likes: 0
Received 1 Like
on
1 Post
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
Firestorm: if an engine does not receive sufficient enough or incorrect lubrication, it will overheat. I wouldn't doubt it with him running so much "stabilizer" in the crank.
#33
CF Veteran
Join Date: Jun 2011
Location: Nor-Cal
Posts: 2,858
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by 94JeepCherokeeMan
Firestorm: if an engine does not receive sufficient enough or incorrect lubrication, it will overheat. I wouldn't doubt it with him running so much "stabilizer" in the crank.
#34
Member
Thread Starter
Join Date: Oct 2010
Location: phoenix
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
It says on the Lucas bottle that for and old worn out motor to use that percent of oil additive. There is actually a demo gear at auto zone that proves it lubricates better than any oil. Im just gonna try using royal purple then.
#35
Member
Thread Starter
Join Date: Oct 2010
Location: phoenix
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
And no I don't have a spring in the lower hose. Nobody sells that hose here. I read on one of the forums that u can order it from the dealer for 30 bucks but I am really strapped for cash now that I have dumped a few thousand into this jeep and it is slow for my work here in the summer.
#36
CF Veteran
Join Date: Jun 2011
Location: Nor-Cal
Posts: 2,858
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by mmattern1985
It says on the Lucas bottle that for and old worn out motor to use that percent of oil additive. There is actually a demo gear at auto zone that proves it lubricates better than any oil. Im just gonna try using royal purple then.
#37
CF Veteran
Join Date: Jun 2011
Location: Southern Idaho
Posts: 1,023
Likes: 0
Received 1 Like
on
1 Post
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
I don't care about those stupid demo gears in autozone. They do not accurately represent the operating conditions of an engine. Please read motor oil 101 and the rest of the articles on bobistheoilguy.com... The lower rad hose is less than $20 at NAPA, btw.
#38
CF Veteran
Join Date: Jun 2011
Location: Southern Idaho
Posts: 1,023
Likes: 0
Received 1 Like
on
1 Post
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
Thinner oil lubricates better, plain and simple. Gear oil can and will make your oil pump fail, and it doesn't flow well enough to cool your engine.
#40
CF Veteran
Join Date: Jun 2011
Location: Nor-Cal
Posts: 2,858
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by 94JeepCherokeeMan
slick: no, you didn't stutter, but firestorm said something that sounded like he was disagreeing. Again.
#42
Member
Thread Starter
Join Date: Oct 2010
Location: phoenix
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
Where is the temperature sensor? I never replaced it when I changed over the cooling system. I don't see why it wouldn't work though because when it is under 95 degrees outside it works normal. Only when it is triple digits out with the ac on is when it gets almost to the red before I shut of the ac and even then it runs at 235 or so. Its gotta be the heads are bad I don't see anything else it could be.
#45
Member
Thread Starter
Join Date: Oct 2010
Location: phoenix
Posts: 101
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: 4.0
Im thinking im just not going to worry about it anymore and just run it then whenever it starts steaming out of the hood and blows the cap then I will worry about it. Im just over frustrated. I have been trying everything for months and dumped so much money into this thing. Now I got laid off and the 5000 dollars I have put into this thing would be nice to have right about now. I have a two year old with a disability and I thought this thing would be a good way to have some fun and get outta town with the family. All its been is unreliable and close to a death trap. Anybody that is reading this tread I recommend Cherokees 91 and above. Do your research before you dump a bunch of money into the renix jeeps.