love2smoketire

I have 2004 ford sport trac that I just purchased & the eng sound very good it has 43000 miles. the problem is that it has no power & when you have it on park or neutral the rpm will not go over 3000rpm. there is no code or eng ligth on. I put the scanner just in case & it comes out clean no code it drives but with no power . any ideas of what going on thanks .

FEAnt

No codes stored in memory??

love2smoketire

nope none

cjshelley

when you try to rev it in neutral, are you flooring it or increasing the throttle gradually?

love2smoketire

both when in neutral, or gradually, & also when in gear it does not go over 3000rpm, i disconected the t.p.s. & also the afm and theres no change in the eng. it stays running so i dont know im disconecting the cat to see if its clogged.

bmhhvactec2

I have a 2001 model doing the same thing only in park and neutral--if it is doing it while in gear, it's not enough for me to notice--wondering what you came up with. Thanks!

love2smoketire

i have not been able to fix it. it does the pinging when it reaches the 3000rpm mark. it pings like is low in octane, like it lost the timing. I have not come up with anything yet they even sugested for me to disconect the cat to see if its clogged.

97greenmonster

its a rev limiter so you wont blow your motor to hell. You can take it off with a programer. But its there for a reason and its a good thing.

BKL8008

Mine WILL rev over 3,000 RPM's - it just starts coughing at 85 mph and shuts down at about 90 mph. I found that out the first time I got mad at an old woman doing 25 mph on the highway and passed her. 6,000 RPM's when it downshifted, in nothing flat! Probably a good thing it shuts down at 90 mph, too, since it gets a bit squirrelly at that speed!

fred061164

That rev limiter freaked me out the 1st time I tried to rev it up - thought it was puking.