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John Billings
Dodge Dakota
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4/15/2003
08:54:15
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 Subject: 1999 5.2 pinging
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I have a 1999 Ext cab 4x4 that has a problem. When I am going up hills or sometimes just down the road it pings severely, like when you have bad gas. Sometimes I lose a cyclinder all together. When I let off the gas then feather back in it clears up. The problem is getting worse. I did have the valley pan gasket problem back in 2000 when the truck had about 15,000 miles on it. The gasket was replaced and so were the plugs. I have since replaced the plugs again at about 33,000 miles. There is 40,000 on it now. Any help would be appreciated. Thanks
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kota on 20s
GenIII
4/15/2003
12:10:28
| RE: 1999 5.2 pinging
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the gasket is probably blown again.
~Eric
Single cam, non-VTEC
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John Billings
Dodge Dakota
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4/15/2003
12:20:46
| RE: 1999 5.2 pinging
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I dont think it is. Last time when it was I was going through a quart of oil every 1,000 miles. I am not using any oil now.
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kota on 20s
GenIII
4/15/2003
12:30:13
| RE: 1999 5.2 pinging
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mine was blown and i didnt even know it,
just look down the TB (with the engine off..hehe) and if there is oil on the plenum floor, its blown
mine would detonate a little, then i switched to a 180 degree T-stat, and one step colder plugs, and it helped a lot
~Eric
Single cam, non-VTEC
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Fubar512
GenIII
4/15/2003
13:18:28
|  RE: 1999 5.2 pinging
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It could be a belly-pan. The misfire could also be a bad lead (plug wire).
Check the belly pan for oil by looking down the open bores of the TB, with a flashlight. If there's anything more then just a bit of oil (you can expect some from the crankcase breather under WOT), then it's blown again.
If that checks out OK, go through your spark-plug wires. On a '99, I would replace them, as well as the cap and rotor.
Pull the plugs while you're at it, and see if there's any sign of fouling. You might as well change them, since you're only talking about eight dollars or so.
Going to a 180 degree thermostat, as kota on 20's suggests, is a good idea, as is dropping the heat range on the plugs. Many here swear by the Autolite 3923's, which are a standard-tip plug (as opposed to the projected-tip plugs that the factory installs). I have both the 180-Tstat, and the 3923's on my '99 CC 5.2, and have no detonation problems what so ever.
Confucious say: Any man can pee on wall. Be a true hero and crap on ceiling! I've tried being a hero once too often...
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RI Dak
Dodge Dakota
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4/15/2003
17:15:51
| RE: 1999 5.2 pinging
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Had the same problem with mine... the dealer flashed the pcm?? Not really sure what the deal was but it doesn't do it anymore... I've heard using the autolite 3923's helps with any pinging problems too. Good luck!
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jim
Dodge Dakota
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4/16/2003
00:23:30
|  RE: 1999 5.2 pinging
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I dont have a pinging problem but I am going through a quart of oil every 1000mi. What is the vally pan gasket and where do I get another? I have a 99 dakota 4x4 5.2L and it does not leak any oil. Thanks Jim
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kota on 20s
GenIII
4/16/2003
00:28:26
| RE: 1999 5.2 pinging
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the intake manifold has a pan that bolts to the bottom. the gasket that goes in between the two leaks. you can get another one at the dealer, or maby a parts store.
you will also have to get a intake manifold gasket set, because you have to take the manifold off to change the gasket. the cheapest place i have found the manifold gasket set is at summit for $22
~Eric
Single cam, non-VTEC
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Fubar512
GenIII
4/16/2003
00:33:45
| RE: 1999 5.2 pinging
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To find out how to check your truck's belly-pan gasket for leaks, go HERE
To find out what's involved in repairing it, go HERE
Confucious say: Any man can pee on wall. Be a true hero and crap on ceiling! I've tried being a hero once too often...
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Houptee
Dodge Dakota
JOIN HERE
4/16/2003
14:45:24
| RE: 1999 5.2 pinging
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Message:
I got the FelPro gasket set at Oreilly auto parts it comes with both gaskets for the upper valley and the plenum part no. MS 95392 it was around 25 bucks. Autozone etc. should have it also.
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