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post #4 of (permalink) Old 09-29-1999, 06:50 PM
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Re: 4.0 liter oil pressure

Ya ..... looks normal. I didn't like it so I had a high volume oil pump installed. Now I'm up against the relief at start up (about 58-60 if you believe the stock in dash gauge) and that's almost where it runs off idle....warm idle is around 42-45 and it may dip to under 40 in severe service hot idle. I had mine installed @3000 miles. Mopar sells this pump ..... but it says "it is illegal to sell or install this on a emissions control vehicle" .... for the life of me I can't figure why. I have an email into mopar tech asking them why ...... haven't heard back from them yet. I'm sure that you'll do fine with the stock pump ....... I'm just a nut about this stuff.

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