Cooling issues... keeping it coo while, im not keeping my cool

Started by JaiDeeEmm, March 26, 2009, 08:38:53 PM

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JaiDeeEmm

March 26, 2009, 08:38:53 PM
Ok vehicle 1994 cherokee sport 4.0 auto

Problem over heats... when it sits for say longer than 10 minutes idling


Parts replaced

Thremostat
Radiator
Radiator cap

Coolant flush with flush stuff from autozone..

Water pump looks like brand new when i pulled it off to replace it..
Radiator fan kicks in just fine...


HELPPP!!!

MR. Horsepower

#1
March 26, 2009, 08:47:28 PM
 with the cap off and it running can you see the water moving like its getting circulated right
==rocks fordd forddd forddgal ==roxx  LETS ROLL !!!!

JaiDeeEmm

#2
March 26, 2009, 08:58:12 PM
The cap is at an area where you cant see the coolant .

TBigLug

#3
March 26, 2009, 09:05:22 PM
Water pump might not be circulating the coolant.
Big John's the name, big horses are my game!

"Casper" 2004 Chevy Cavalier, 2.2, 5 sp. (g/f dd)
"The Hoopty" 1995 Mercury Grand marquis, 4.6L (my DD)
"My Chevy" 1992 Chevy Z71, 5.7L, 700R4 (Horse Hauler, Farm Truck, Cruiser)

"I'll keep my God, freedoms, constitution and my guns. Obama, you keep your change!" -Protesters Sign

"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government."  -- George Washington

TBigLug

#4
March 26, 2009, 09:06:27 PM
Depending on how much it costs, how easy it is to get to and how many miles are on the motor it might be worth swapping the water pump anyway. ???
Big John's the name, big horses are my game!

"Casper" 2004 Chevy Cavalier, 2.2, 5 sp. (g/f dd)
"The Hoopty" 1995 Mercury Grand marquis, 4.6L (my DD)
"My Chevy" 1992 Chevy Z71, 5.7L, 700R4 (Horse Hauler, Farm Truck, Cruiser)

"I'll keep my God, freedoms, constitution and my guns. Obama, you keep your change!" -Protesters Sign

"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government."  -- George Washington

RIP_K52007

#5
March 26, 2009, 09:24:05 PM
did you try a lower temp thermostat like a 180 degree...   the water pump might be weak too.

Crazymays77

#6
March 26, 2009, 09:29:35 PM
water pump isnt that much. its kinda difficult to change but could be the problem.


TBigLug

#7
March 26, 2009, 09:34:38 PM
Is it electric fan or belt driven? If it's belt and the shroud is missing it won't draw the air through the radiator. Just around the front.
Big John's the name, big horses are my game!

"Casper" 2004 Chevy Cavalier, 2.2, 5 sp. (g/f dd)
"The Hoopty" 1995 Mercury Grand marquis, 4.6L (my DD)
"My Chevy" 1992 Chevy Z71, 5.7L, 700R4 (Horse Hauler, Farm Truck, Cruiser)

"I'll keep my God, freedoms, constitution and my guns. Obama, you keep your change!" -Protesters Sign

"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government."  -- George Washington

Crazymays77

#8
March 26, 2009, 09:39:18 PM
they have both fans.


JaiDeeEmm

#9
March 26, 2009, 09:48:13 PM
Im doing the water pump right now..  The old one looks brand new and theres blue silicone under it so its been done sometime or another.. We will see.. Hopefully this does the trick.. whats the possibility of the head gasket?  There is no oil in my coolant and no coolant in my oil....

JaiDeeEmm

#10
March 26, 2009, 09:48:50 PM
I might try the lower temp thermostat  also.. i like that idea

rebelryder

#11
March 27, 2009, 12:37:38 AM
so i have had this problem and this is a big problem. i chased mine around for a long time. after doing the same thing and replaceing every coolant thing i could i come to the point where i had my jeep pressure tested and came to find out my head was cracked. typical jeep. put a new head on and if it fixed the problem. but its possiible your water pump isnt doing the job so. thats just my two pennies
"the road less traveled is less traveled for a reason"


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four_by_ken

#12
March 27, 2009, 02:00:24 AM
Your thermostat will either work or not.  Dont waste your time with a different temp if you know the thermostat is opening up.

If the new water pump doesnt take care of the problem... ugh, I think it is going to get expensive.
In need of a yank strap?  PM me... I have 'em!

Disturban

#13
March 27, 2009, 11:19:00 PM
It could also be the radiator...just because you ran flush through it does not mean it's clean and flowing. Once those tubes get clogged up you can run 100 bottles of flush through it and it wont unclog them, the flush will just flow through the few tubes that are not clogged!

JaiDeeEmm

#14
March 29, 2009, 05:44:24 AM
Quote from: Disturban on March 27, 2009, 11:19:00 PM
It could also be the radiator...just because you ran flush through it does not mean it's clean and flowing. Once those tubes get clogged up you can run 100 bottles of flush through it and it wont unclog them, the flush will just flow through the few tubes that are not clogged!


this post started after i put a brand new radiator in

Disturban

#15
March 29, 2009, 03:17:48 PM Last Edit: March 29, 2009, 03:25:43 PM by Disturban
Quote from: JaiDeeEmm on March 29, 2009, 05:44:24 AM
Quote from: Disturban on March 27, 2009, 11:19:00 PM
It could also be the radiator...just because you ran flush through it does not mean it's clean and flowing. Once those tubes get clogged up you can run 100 bottles of flush through it and it wont unclog them, the flush will just flow through the few tubes that are not clogged!


this post started after i put a brand new radiator in

In that case I would suspect a bad head gasket or cracked head...you can try replacing the water pump however I have never seen one go bad without leaking or making a horrible noise.

A cooling system is real real simple. You need flow (WATER PUMP) you need a heat exchanger (RADIATOR) and you need air to cool the radiator (FAN or WIND FROM Driving) a thermostat simply allows the motor to reach operating temp faster and during cold weather. If a thermostat is stuck shut it will cause you to over heat but most thermostats now days are fail safe and will fail in the open position.

Bigdaddy

#16
March 29, 2009, 10:36:06 PM
are both fans working?
Free your mind...and your ass will follow!

NEVER ARGUE WITH AN IDIOT, THEY'LL BRING YOU DOWN TO THEIR LEVEL AND BEAT YOU WITH EXPERIENCE!!

JaiDeeEmm

#17
March 30, 2009, 04:16:06 AM
yes both fans are working.. I havent had the chance to test it since the water pump its been sitting in pieces from my suspension build ill keep this up to date..

RIP_K52007

#18
March 30, 2009, 04:32:47 AM
when you get a chance find someone with a colling system pressure tester, try that, if you dont have it figured out by the next time im going downstate (prolly easter weekend) i can bring mine over.

JaiDeeEmm

#19
March 30, 2009, 05:07:33 AM
i think i know someone with one.. Good idea Thanks
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