The Charger is going back to the dealer Wed becasue it is still knocking and pinging. I have been ruinning 89 Octane( car still hauls ass) and I can still hear knocks and pings.

The dealer said they are going to have to call Chrysler becasue there are no TSB reports on knocking and pinging.

Can anyone offer a possible reason so I can give the dealer some things to look for?

I am thinking its a timing issue?

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3796,
I put in the Jet 2 chip almost immediately and have ran 91+ ever since and have had no problems pinging (that I know of). Where I live, premium gas is only 3-4 cents more than 89, so I use the 91+.

If you live in an area that uses MTBE (Methyl tert-butyl ether) as a fuel octane booster additive (sometimes referred to as Reformulated Gasoline) which also raises the oxygen content in the gas, this may cause a leaning out. I don't live in that area (CA, parts of AZ, Houston, etc, etc ) are areas that use MTBE for cleaner air.



MN

I havent heard a knock or ping out of any cars for about 15yrs that was my ole mans Mutang GT .Sorry I am no help here

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hey, do you have a cold air intake mod?
somtimes people hear the butterflie valve flapping . this cold make a pinging noise.


go mango 1342
mopar cai
mopar headers
rear defuser
corsa exhaust

73 charger se 440
475 hp
355 gears
mustang killer

Good idea our whistles alot

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Yes I installed the Mopar CIA.

Please tell me more about this mod and a flapping noise?

The dealer has no clue and is calling Chrysler tomorow when I bring her in.

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i think it the ethenal in the gas.

go mango 1342
mopar cai
mopar headers
rear defuser
corsa exhaust

73 charger se 440

You totally lost me.

The cold air pipe and the gas type casue a knocking and pinging noise due to a valve?

Say it in layman terms so I can explain it to the Stealership.

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I have the Mopar CAI also and no knocking or pinging. Mine whistles, too

dave

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Whistles when you step on it or all the time? I thought the throttle body sapcer amde it whistle?

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