Good evening fellow Ford friends. I have a 79 f150 4x4 with a 400m motor pand love my truck. Coming home from camping trip this weekend she died twice on the freeway. I had here towed home. When I looked under hood I saw some smoke coming from back of motor. I thought maybe bad egr valve. Today after removing egr valve I notice this part -picture attached, does anyone know what it is?

thanks for any input.

 

Oil pressure sender...

 

Thank you. I dont believe that will be my problem....not yet at least.

 

Kiley, at what point in driving did the truck stop running..
and you say it happend twice on the same drive...
Have you found the reason yet?
Best

 

Sanddoc, thank you for the response. It seems to cut out and die when I am on the freeway. I have replaced the ignition coil but have not had a chance to test it on freeway for any reasonable distance yet. I hope to do that this week. The carb was recently rebuilt and a new fuel pump was put in so I am leaning towards spark issue and not fuel. The ignition coil was the only item that I had not replaced in the last year or so. I will post update later this week after my test run......fingers crossed.

Thanks,