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AJ
Dodge Dakota
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2/14/2011
07:15:46
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 Subject: 3.9 Pinging
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All: My 02 3.9L w/92,000 miles is pinging quite a bit. Starts under the slightest load and acceleration. I changed the PCV valve to no avail. Thought it might be the belly pan but I dont see pools of oil when looking down the throttle. The truck does burn about a quart every 3000 miles but it has done that since it was brand new. What do you all recommend I check? Thx>>AJ
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daddio
Dodge Dakota
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2/14/2011
19:15:27
| RE: 3.9 Pinging
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Try a saprk plug that is one range coller than stock. NGK FR5 is a decent choice. I know there is an Autolite but don't recall the number.
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AJ
Dodge Dakota
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2/15/2011
10:01:43
| RE: 3.9 Pinging
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Thx Daddio. I'll give that a try. I assume these plugs do not create any drivability problems?
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daddio
Dodge Dakota
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2/15/2011
12:56:52
| RE: 3.9 Pinging
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None whatsoever.
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Pinger
Dodge Dakota
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2/16/2011
17:56:58
|  RE: 3.9 Pinging
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My truck pinged until I started putting Mobile Gas in the tank. Took a couple fill ups to go away.
PING PING
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daddio
Dodge Dakota
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2/16/2011
18:03:58
| RE: 3.9 Pinging
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You can also help pinging by bringing down the engine operating temp as much as possible without hurting fuel economy.
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