96 F-150 missing
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New User
Joined: Jul 2009
Posts: 13
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96 F-150 missing
hey i got a 96 F-150 with a 351W and when your getting up to speed at half throttle it feels like its missing or not getting enough gas. i ve done a full tune up on it and its still doing it. thanx mat
Cargo Master
Joined: Jul 2009
Posts: 2,541
Likes: 54
From: Des Moines
Have you checked fuel pressure? You may also want to check your throttle positioning sensor- sometimes they get worn out in a certain area and cause poor performance- it's usually at idle or when you're at speeds you drive on a daily basis, but I've seen them go bad in between those areas as well. Let me know if you don't know how to do it- I'll look up the procedure for you in my service manual.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
Reference fordfuelinjection.com, and look up the throttle position sensor. While you are read up on how to pull the codes with a paper clip, or short piece of wire. It is also a good idea to pull the codes even if the truck doesnt have the CEL lit. You will also need a Digital Multimeter.
Cargo Master
Joined: Jul 2009
Posts: 2,541
Likes: 54
From: Des Moines
alxsnmr is right- go to fordfuelinjection.com and follow their procedure for checking TPS. Compared to the one in my service manual it is less confusing- the one in my book is the kind of procedure I'd need to be right there at the truck to perform. FFI.com is much simpler... or at least, better explained.
