Sorry for the dramatic title..My 99 quad-cab 4x4 with 5.9 has no sticker or residue,indicating a dealer flash etc on the ECM/computer.Shouldn't the truck have had it done at some point?The truck has 130k miles on it now....Im not sure im complaing..Just curious as to anyone's input on the matter

 

It didn't come standard until 2000 or so. If you truck was never brought in for a performance problem, they wouldn't just flash it for giggles..... maybe you got lucky.

 

Well im dealing with a potential plenum problem now(possibly)...So I wont really know if its seems underpowered.It does now(power wise) till you hit about 2500rpm or so..About 3k or so it pings sometimes(let off quick lol)..I bought it that way due to price an I was in love..I have been driving it little to none till i get it sorted out..

 

They are supposed to put a sticker on it when they do flash it.

 

That is why im stumped..No sticker or trace of one it appears..There is a long bar code sticker towards the bottom..Factory crap im guessing?

 

Yep, and what you describe sounds a lot like symptoms of a blown plenum. Mine was gutless till about 2500-3000 RPM, and then it was like someone flipped a switch, and all the power was there.

After I fixed it, it runs like that ALL the time now. I like it.

 

No No..Mine has tons of low end...Its kinda surges like a small miss about 2500 or so..An if its under load at high 2000 or 3k it will ping sometimes..Did tune up except coil to start with an oil change..Helped but not fixed...Still need to spray some ether an check for vac leaks

 

When I bought my pick up it had some issues and the dealer I bought it from (used car dealer) brought it to a chrysler dealer and they told me the updated the software. There is no sticker on it, so either they didn't put the sticker on or they didn't do it. Not sayin this is your case though. I don't think the death flash would cause the pinging (i believe the flash was made to STOP pinging). Still you should check and make sure your plenum is/isnt blown, can't hurt any

 

The blown plenum cause's the pinging..I thought??I plan on checkin an fixing the plenum..I just dont want to buy a tuner to get rid of the death flash .If I dont have the death flash...Mostly stock tune would be fine..If its no been molested

 

No you are right! I just didnt know if you were thinkin the potential flash had somin to do with the pinging, nevermind