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Todd
Dodge Dakota
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11/15/2005
14:13:22
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 Subject: Knocking!Pinging!
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Message:
My 99 5.2 knocks loud when im going about 70 km and push the gas down half to three quaters down.Generally up a hill! What is the best correction for this? Timing? Better gas? spark plugs? What is the best fix? Thx
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Jeff
GenIII
11/15/2005
14:35:57
| RE: Knocking!Pinging!
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Message:
my 99 3.9 lost its ping after new cap/rotor, new plug wires, and switching to ap3923 plugs.
obviously, results may vary.
:)
Jeff
'99 3.9 clubcab
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Todd
Dodge Dakota
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11/15/2005
14:38:01
| RE: Knocking!Pinging!
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Message:
Thx alot I guess Ill tackle all those things .What kind of gas do should i run ? 87 or 89 ?
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OBIO3
Dodge Dakota
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11/15/2005
14:48:24
| RE: Knocking!Pinging!
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Message:
Your words (knocking loud) sujests vacumn leak > If you have no serious dammage to any vacumn hoses I'd bet money your problem is the metal pan under your aluminun intake > You best fix it very soon if it's as bad as your making it sound before internal engine dammage gets hold of your wallet >
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Todd
Dodge Dakota
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11/15/2005
15:15:30
| RE: Knocking!Pinging!
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Message:
Ya I read that in the manual/ vacuum leak. But I will also check the pan thing out . Thx alot!
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pacman
Dodge Dakota
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11/15/2005
15:59:11
|  RE: Knocking!Pinging!
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Message:
I've owned the 3.9L and now have an R/T. I know the manual says the motor was designed to run o.k. on 87 octane but that's a bunch of crap! I run premium and it's worth every penny. Do the math, you're not saving much by upgrading. And the performance is much better. We're talking a couple bucks per fill up.
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