My truck vibrates between 1500 to 1800 rpms. anything below that its fine and anything above that its fine. it does it while driving and while not driving. please help!

 

Could it be a miss possibly, We'll need more information to be able to help!
Give us some details about the problem and we'll do everything we can to get ya a solution!

 

Sounds like an injector issue.

 

the truck vibrates siting still just reving it, it does it 1st through 6th gear at the same rpms. (1500-1800). feels the same pulling or not

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if its an injector problem why would it stop vibrating after 1800 rps? it wouldnt stay the same or get worse?

 

Not really, It can present it's self in many ways. Are there any codes on the truck. Like i said, There's not enough info here for us to get an idea of whats going on

 

twin turbos , big shower heads and a chip will fix it

 

theres no codes, it ran fine just a few days ago. what kind of info do you need? what do you think about the crankshaft vibration damper?

 

Well , Are you seeing any smoke , any unusual noise. The vibration could be hundreds of things, Converter or Pressure plate problems , the Damper.... injectors, a dead cylinder. The list continues. Any information regarding the truck and mod's done to the truck will get us closer to a diagnoses!

 

the only mod is straight piped that i know of i just bought the truck 4-5 months ago. nothing else apears to be moded. it doesnt smoke at all, doesnt seem to lack any power, theres no unnormal noises or sounds, shift smothly, clutch works great. the truck drives just like normal except for between 1500 to 1800 rpms. thats when the hole truck vibrates or shakes. its bad, feels like bad worped rotors when you jam on the brakes, but it does it while siting still reving the engine, driving in all 6 gears, accelerating, and decelerating.

 

can anyone else help. PLEASE!!!