Check Engine Light On/Off

[tship87]

When I start my truck, the check engine light is off. As I drive it comes on randomly and goes off randomly. Anyone have this happen to them or know what it could be? Any help would be appreciated. Thanks.

Tom

 

[BroncoJoe19]

Hi Tom,

I don't know what would cause that, so the first thing I would do is pull diagnostic trouble codes from the on board computer and see if that leads me anywhere.

How to scan FORD on board Diagnostic Trouble Codes (DTCs) in your driveway

HowTo Pull Codes 1983-1995 Broncos, Mustang, F series Trucks, Econolines, 302, 351 and more