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Feb 8, 2007 | 10:25 AM

98F

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pinging

I have 98 F-150 with a 184,000 miles on 4.6 Triton. It still has plenty of power and doesn't hardly use any oil and doesnt burn it either, but under hard acceleration it tends to give off a pinging noise like it detonating(preignition). Would this be caused by low grade fuel or would it be something else. I usually pu 87 octane in it. Thanx.

Feb 8, 2007 | 10:52 AM

KingRanchMan02

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From: Louisville, Kentucky

Welcome to FTE 98F.

Clean your MAF sensor. Use throttle body cleaner. Spray it down, let it dry. DO NOT TOUCH THE FILAMENT! Very delicate and breaks easily. Good luck!

Feb 8, 2007 | 11:09 AM

Johnny Langton

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From: SE Texas

It could be several things. MAF could be dirty,O2 sensors need replaced(unless done recently),and the fuel pump may be dying.
JL

Feb 8, 2007 | 12:05 PM

l-m tech

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From: duncan oklahoma

its definitly a lean condition that is causeing the problem.maf or weak fuel delivery like stated will cause this problem.

Feb 8, 2007 | 12:18 PM

LxMan1

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From: Louisville,Ky.

How old is the fuel filter?

Feb 8, 2007 | 12:21 PM

Joe Finn

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From: DC

Can clogged EGR ports cause pinging from higher combustion chamber temps?

Feb 8, 2007 | 12:32 PM

98F

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Thanx for all the info. Have no idea how old the fuel filter is. Had the truck for a year now but have been too busy with Army life to really do anything with it yet.