Fuel Air Mixture

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Dec 14, 2002 | 03:58 PM

froman23

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Fuel Air Mixture

I have a 93 f150 302 with an AODE. My truck has been pinging alot at low rpms. Need to know what is the cause of this. It has about 118,000 on the moter. Does it need to be rebuilt or just a good tune up and if there is anything that i can do to stop it from pinging. I am farly good with moters so any thing that is not to hard i can do.
Thanks all
Rudy

Dec 14, 2002 | 05:27 PM

PATS2002

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From: S.E. PA

Fuel Air Mixture

I was reading the Haynes Manual for something else and I came upon something about the knock sensor. My truck has been pinging too when I get on it. I thought It was crappy oxygenated fuel so I have been using mid grade fuel. The manual goes into the whole explanation about how to test and explains what it does(adjusts the timing). This could be a place to start.

Dec 14, 2002 | 05:43 PM

steve83

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From: Memphis, TN

Fuel Air Mixture

Pull the code & see what the computer says is the problem. You might need to replace the HEGO or FPR.

Dec 14, 2002 | 07:10 PM

Racerguy

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Joined: Aug 2002

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From: BC, Canada

Fuel Air Mixture

Have you checked the timing? It should be set at 10 degrees with the SPOUT disconnected. Have you done anything to it recently? Plug wires? If they arent routed correctly you can get pinging due to crossfiring.

Dec 15, 2002 | 07:10 PM

froman23

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Fuel Air Mixture

I have not checked any of this. How hard is it to do all of these things and what type of tools do i need to do the timing. That is what i thought it was but i dont want to mess anything up in my moter.
Thanks for the help
Rudy