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bskarger
Dodge Dakota
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10/17/2003
15:25:54

Subject: STILL PINGING...this sucks!
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So I took my '00 V6 CC to the shop yesterday...for two things:

1- MIL was on, code was Po138 (downstream O2 sensor voltage too high)
2- BAD pinging almost all the time (when warmed up)

So, they tell me that my downstream 02 sensor is bad.
I take the truck home and replace the 02 sensor with a new Bosch unit ($90 worth). Start up the truck, take it for a ride...MIL is now off (cause I reset the PCM), but IT'S STILL PINGING LIKE CRAZY!

I don't get it...it didn't do this a month ago...what could have changed? Driving on the highway is horrible...overdrive REALLY makes her ping...add a slight incline in the road, and it sounds terrible.

So, what else to check? Everything is stock...no mods. I looked down the TB into the plenum, and there is some oil in there, but it's not a puddle or anything...just looks like scum/residue.

I've had this truck for 4 months...haven't had 1 good day with it.




GasCan
Dodge Dakota
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10/17/2003
16:31:51

RE: STILL PINGING...this sucks!
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Where do you live?

Winter gas is creeping in. More volatile.



janesy
Dodge Dakota
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10/17/2003
17:45:13

RE: STILL PINGING...this sucks!
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try running higher octain gas, and or a lower temp thermostat



geoles2
Dodge Dakota
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10/17/2003
20:14:52

RE: STILL PINGING...this sucks!
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There is an update for the pcm that will adjust the timing to help with the ping. Also that will not fix the entire problem, more than likely your valley pan gasket is blown. Remove your intake and turn it over if you see pieces of the gasket stiking out from the sides its blowing causing your truck to run lean and spark knock.



gen1dak
Dodge Dakota
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10/17/2003
23:39:30

RE: STILL PINGING...this sucks!
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The scum you saw can also be an indicator of the aforementioned blown intake valley gasket. Hughes Engines sells a kit which spreads the bolt load more evenly on the gasket to help prevent future blowouts. Cheap insurance. In that it was a sudden change, I'd think it was the gasket, especially if it doesn't resolve with a tank of premium.



Kowalski
Dodge Dakota
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10/18/2003
09:14:55

RE: STILL PINGING...this sucks!
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Don't get a flash that will retard your timing forever just because you have a bad belly pan gasket ! Look into that first.



TexasTodd
Dodge Dakota
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10/19/2003
16:29:39

RE: STILL PINGING...this sucks!
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And, make sure it's not 'bad gas'. NOt the kind after bad Mexicazn food, the kind that has an octane rating lower than what the pump says it should be. Happens all the time. And ditto, DON'T get the flash that mr. geo suggested!



Super Unlead
Dodge Dakota
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10/20/2003
18:18:35

RE: STILL PINGING...this sucks!
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Works for me. My engine was pinging every time I presed on the accelerator. Since I've been using Super Unleaded. Both my 01 Intrepid R/T and my '95 Dakota has been running much smoother at higher RPM.



Neil
Dodge Dakota
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10/21/2003
06:33:26

RE: STILL PINGING...this sucks!
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Message:
http://dodgeram.org/tech/gas/Trouble/ping.htm



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