Mechanics

FORD F-250 DIESEL PROBLEM

1986 Ford F-250 • 275,000 miles

This is a 6.9 diesel, its starts right away, then after a few moments it struggles and usually quits (sometimes it will stay running) and after lots of cranking it'll start again
Avatar
Guest
February 17, 2013.



Once it gets running, how does it act?

Sounds like the injector pump. There is a check valve where the return line comes out that gets clogged with debris and will cause this issue. If it is, then the pump will have to be replaced.

Roy

ASEMaster6371
Feb 17, 2013.