Need Help With My 95 F150 5.0 Mass Air

Maryland Stang

Active Member
Aug 21, 2002
1,656
29
39
Greenville, NC
Hey guys, I need a little help with a issue with my 1995 F150 5.0 with mass air. It's kinda strange. I pull a 5,000 pound trailer with it. The engine is bone stock except for a K&N filter.

Whenever I put the truck into reverse and I'm backing up a light incline (my driveway is slightly uphill) the engine will want to stall out and if I don't catch it fast enough, it will stall out. Any ideas? It will do this even when both tanks are full and it will do it on either tank. In other words, I've eliminated fuel slosh as the problem.
 
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