can't get over 50 mph

[ligerzero]

1999 gmc yukon denali. ABS light is on, feels like the truck wont go past second gear. I've replaced the speed sensors. Ran diagnostic and the only only code coming up is for the downstream oxygen sensor so i have no idea what to do now
it also kicks when shifting from first to second and will stay in second until its turned off.

 

[SunlitComet]

check for a disconnected tranny fuse or malfunctioning TPS sensor to start with.

---------- Post added at 02:56 AM ---------- Previous post was at 02:55 AM ----------

ABS light may just be dirty wheel sensor but should not slow you down and what is he exact code you pulled?

 

[ligerzero]

Sorry I don't recall the codes but like i said i've changed the tps, output speed sensor and the vehicle speed sensor.

 

[Donnie Yukonie]

this might siund obvious but no tranny codes?? i would point the finger at the trans first i dont see how abs would restrict speed

 

[retorq]

It's a truck, there is no need to go over 50.

 

[ligerzero]

no tranny codes yet but i'm having it checked again today.

@retorq i know its a truck but if i'm doing less than 50 i'd like it to be by my doing not cause the truck can't

 

[SunlitComet]

there is always a need to go over 50mph

 

[Gzes]

like when running from the fuzz! lol. are ur brakes locked up on the rotors? could be

 

[retorq]

Ya'll are a bunch of Speedy Speedersons!!