'95 F-150 302 v8 Acceleration Problems
'95 F-150 302 v8 Acceleration Problems
I just picked this up from a buddy tonight. Everything about this truck is great except a new problem that he hadn't seen before when we were driving it back to my place. It seems that the vehicle doesn't accelerate past 50mph. If I slowly increase pressure on the gas peddle it accelerates up to 50mph. If I floor it from the get go it does go all the way up to 50 and seems to go past but I wasn't on a road that I could go much faster so I didn't go any faster. It's got 115k on it and he said it needs it's 100k mile tune-up. How do I make sure there's not something really wrong with the transmition? Oh also the "Check Engine" light is on and he hadn't driven it in about 6 months. Thanks!
Last edited by jurschel; Jul 4, 2006 at 11:08 AM.
Howdy and welcome!
Assuming you don't have a California truck you can pull the codes yourself following the directions on www.fordfuelinjection.com
Once you get the codes we can work on it.
Adrianspeeder
Assuming you don't have a California truck you can pull the codes yourself following the directions on www.fordfuelinjection.com
Once you get the codes we can work on it.
Adrianspeeder
Alright so I went to AutoZone and got the code scanner for the F-150. Scanned the codes and it told me the TPS voltage was to low. So, I went and got the tps replacement. Unfortunately, it looks like the TPS is on the bottom of the throttle body on this f150 302 5.0L V8. Can somebody give me some very specific instructions on exactly how to replace this part? I can't figure out how anybody could unscrew this thing since it's on the bottom of the TB and I can barely get my fingers in there to see what kind of screw it might be. Any help you can provide would be appreciated!
Last edited by jurschel; Jul 4, 2006 at 11:51 PM.
Well, it's been an experience! Since nobody responded to my question about how to get to the TPS I took matters into my own hands. Obviously, I was just being lazy trying to find an easy way to get to that part vs taking the whole TB apart. Consequently, that is exactly what I did. I took the whole TB apart and then I was able to get to the TPS. I Replaced the TPS put it all back together with my homemade gasket which I had to run and get around 8:30pm at NAPA. Just got the whole sheet so I could cut my own (sweating bullets on that it's 4th of July NAPA you rock for being open when nobody else was!). Took it out for a test drive and the problem is 100% resolved. That code scanner from AutoZone was worth every penny. I don't know what the labor on that job would have been but I see myself saving at least 300 bucks in labor easy. Total parts only cost me around 65$ and my time!!! Thanks for all the greats posts through-out these forums that sparked me to just 'GET'ER DONE'
Last edited by jurschel; Jul 4, 2006 at 11:53 PM.
Originally Posted by adrianspeeder
Assuming you don't have a California truck you can pull the codes yourself following the directions on www.fordfuelinjection.com
All OBD I Fords can have the codes read with nothing more than a paperclip.
Except that it's a '95 and by '95 Ford was already phasing OBD-II in in CA, the rest of the country got it in '96
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Originally Posted by HumboldtF150
Still, being a CA rig has nothing to do with it.
ODB-I is OBD-I, and OBD-II is ODB-II
No matter really, his rig is ODB-I
Paperclip
ODB-I is OBD-I, and OBD-II is ODB-II
No matter really, his rig is ODB-I
Paperclip

The reason the California option was presented was to keep from giving someone bad scoop. The procedures for OBD-I and OBD-II are different for pulling codes, so he didn't want anyone out there with a paperclip trying to figure out how to pull the codes on an OBD-II truck.
Being a California truck could have everything to do with it.





