Stumbling 1991 302
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Junior Member
Joined: Dec 2007
Posts: 2
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From: sacramento
Stumbling 1991 302
I've been trying to figure out why my 1991 f150 with the 302 v8 seems to stumble when accelerating. Long ago in a galaxy far far away it might have been called "vapor lock". Any ideas?
Senior Member
Joined: Jun 2007
Posts: 5,522
Likes: 6
From: Utah
Change the fuel filter lately? Thats the first thing I would check.
Originally Posted by gra2472
I've been trying to figure out why my 1991 f150 with the 302 v8 seems to stumble when accelerating. Long ago in a galaxy far far away it might have been called "vapor lock". Any ideas?
Senior Member
Joined: Nov 2002
Posts: 616
Likes: 1
From: midwest
If you don't know when it had the last tune up, I would start by replacing the spark plugs and and visually inspecting inside the distributor cap. Also add a container of fuel injector cleaner to a full tank of gas. Of course change the fuel filter as mentioned earlier.