Having problems with your 1999 Ford F150 Regular Cab ?

What is the factory idle speed on a 1999 f-150 351w?

Posted / edited by AnonymousUser on : 13-01-2020

Answers :

The idle rpm is controlled by the computer, and is not adjustable. It should be in the 600-700 rpm range, though. If not, check the MAS - make sure it's connected properly with no leaks, isn't dirty, and so forth.
Repair Help & Product Troubleshooting for 1999 Ford F150 Regular Cab

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