I just bought a 03 4.0L supercab xlt. I got it on the highway and it tops out 90 and you can tell it definitely could go much faster. why is there a governor on it and how do I remove it?

 

it's safer to sell a truck that goes 90mph then a truck that goes 120+ and another thing is i never seen a 90mph speed limit sign before so why go that fast in a truck,but anyways enough of rant get a programmer and you can take it off

 

yeah i dont plan to be speeding alot but I dont like limitations like that. how does a programmer work?

 

a programmer or a chip or both. I don't really know how this works.

 

i'm not really sure how they work neither but i know if you have a auto you can change shift point and and all look up xcal tuner's that's the only one i know of

 

does your speedometer say 90? or 120.

 

Get a SCT Xcal 2 or 3. You will be able to take the speed governor off.

 

a tuner( one used mostly on here is sct xcal or bama chips) will give you custom tunes to what you have done to your truck, its custom, unlike super chips witch are "off the shelf" tunes. those are not near worth the money. tuners can do many many things, including removing of governers and limiters. the best way to learn about the features is get a hold of a tuner and talk to them

 

are these tuners expensive? I plan on keeping the truck completely stock but would just like to remove the governor and maybe get some extra horsepower if possible without damaging or stressing the motor. I really just want to remove the governor, I don't plan on going over 90 often or at all but I don't like to be limited. Let me know what you think I should do.

 

$100 used, $200 or $300 new.

 

just be careful because sometimes you will leave "footprints" in the computer

 

no way in hell I'd want to go 120 in my 4x4...

 

yea anyway i had my truck up to 90 in 3rd and it was pulling hard and still had some left ind 3rd...honestly you take the governer off of our trucks it scares me what their capable of doing

 

what are foot prints?

 

It shows you had custom tunes loaded in. A lot of dealers will void engine warranty because of it

LMAO at going 90 in 3rd gear. Must have been a heck of a hill

 

Ummmm or not. Maybe KPH....

 

it was merging on a highway lol...didnt try to go that fast lol

 

i've been passenger at 128 mph in a 09 Harley Davidson F350 Superduty Diesel before, and 169mph in a 07 GT500.

my mustang will do 119mph in the quarter