Topic: 99 454 gutless!

[little eric]

so im thinking about buying a 99 chevy 2500 454 auto crewcab 4x4 truck. its a really nic truck and a great deal however its absoultly gutless! i mean horible. its not running bad its just not powerfull. anybody have any upgrades you have done on yours. im sure other people have had this problem so lets hear it.

[79coyotefrg]

something is bad wrong  with it,cause a 454  is POWERFUL

probably a badly clogged cat

[little eric [OP]]

actually it has no cats. true duals from the manifolds back. i think maybe its just a lemon?

[KDXSR5]

99= OBDII= two O2 sensors (at least) One before cat, one after. If there is/are no cat/s Then the computer is probably freaking out and sending very little fuel to the engine to try and keep the exhaust as clean as possible. Now if the computer has been tricked into thinking it is getting a good O2 sensor reading from all O2 sensors, then it should run ok. But I highly doubt that anyone put that much thought into it.

[Hyena]

or the motor is about to blow up, you never know.

[jimbo74]

look for a different truck.....

something sounds fishy

[Tool Pimp]

I have a 99 3500 with a 454 and overload the piss out of it (11.5' Lance with a 16' car trailer & rig) and she pulls great I think you might want to have a shop pull the codes and do a compression test B-4 you buy it. 

Heres mine.... Want to buy it??     (Truck only)

[yotacrwlr]

i noe whats wrong its a CHEVY  just kidding but seriously if its a 454 with no power theres a problem it might just need a tune up or something serious  just gunna have to figure it out or look for a different truck. hoped that helped in anyway