What is your question?
·
·
What is your question?
what causes the engine to knock or slightly ping when accelerated over 50mph?
2 Replies
There're interesting articles in the Auto Repair Encyclopedia about these; http://repairpal.com/what-is-engine-knocking and http://repairpal.com/what-is-engine-pinging
Its usually the grade of fuel you are using. Buy some additive to put in the fuel to boost the octane.