Pinging ‘98 4.0, 169K help
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Pinging ‘98 4.0, 169K help
My truck has been pinging for sometime and 91 octane has not helped. It only pings occasionally when driving up a grade. Spark plugs and wires are good and I have no check engine light or codes. However, I added Lucas octane booster to 91 octane and the pinging went away. However, I do not want to pay $11 for a bottle of Lucas every time I fill up. How can I fix this?? Please help.
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dozerzuki
SOHC - 2.3L & 2.5L Lima Engines
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06-11-2009 03:41 PM