Every once in a while in the past 2 weeks I'll be cruising around town in my 94 with the 300 inline 6 and the check engine light will sporadically come on for about 5 to 10 seconds and then go off. When it comes on the truck still feels like its running normal. I'm thinking it may be the o2 sensors going out but im not sure. HELP!!! I really can't deal with any expensive problems down the road!

 

Any codes? Pull the codes before you start throwing parts
at it. Have it scanned at a local auto part store.

 

my 88 did that for a while, it was the oil pressure sending unit..