radiator pressure cap
07-15-2010, 09:17 PM
#1
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Year: 1989,1998
Model: Cherokee
Engine: 4.0, 5.9
radiator pressure cap
I have a 98 5.9 limited and im wondering why i need an 18 pound pressure cap? or if i can put i less pressure one on...
07-15-2010, 10:59 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Why do you want a lower pressure cap? You will only lower the boiling point of your cooling system if you do that. For every pound of pressure, you add three degrees to the boiling point of the cooling system.
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