Question about 1988 Ford F 150

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1988 six have to burn premium gas to lessen engine rattle

If I use regular gas, the engine rattles under load. New plugs, dis. cap ect. Just started and getting worse. Sounds like valves or rods on cheap gas. Please help. Love my truck!

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I'd be replacing the "knock sensor". It sends signal back to computer to adjust timing when this type of condition occurs. It should be on drivers side of lower engine, below ignition coil, mounted to the block. Here's alink to picture so you can I.D it. Let me know. thanks.

http://www.autozone.com/Ntt,knock%20sensor/shopping/allResults.htm

Posted on Feb 25, 2009

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Burn that premium and good luck!! :)

Posted on Feb 25, 2009

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