I have a buddy with a 2003 RCSB 5.3 2wd. He is running the GM Hot cam with a FLT lvl 5 and a 3400 converter. He's having a problem where he drives down the road and lets off the pedal and it holds rpm and speed like as if he had cruise control on. It stays right at about 1500 RPM and which is somewhere around 30 MPH. Then as he slows down, it still sounds like he is two-footing it and it revs around 1000 RPM. However then when he comes to a complete stop and hits the brake hard enough the RPMs jump up to like 1500 and then it idles normal. What could this be? Throttle body? vaccumm? Electronics? Please help.

 

crazy

 

is the tune set for a 3400 stall? im thinking its something in the tune if it wasent acting funny before stall/tune

 

No new mods. Truck has been running fine and has been tuned since the current mods were done. Also, ran fine after the tune as well. All of a sudden its acting up.

 

i dont have any advice to help fix the truck but how does he like that cam? i was thinking about putting one in my truck. do you think it would work well with the mods listed below?

 

As long as you have a good tuning guy or get the truck dyno tuned, I think you would love the cam. He did have some tuning issues with the truck idling. He used to have to two-foot it everywhere. But as for power the truck rocks. Your set-up seems to be a solid setup, however, I would probably do a higher stalled converter to feel the complete capability of the cam. Also, maybe some more tranny work unless your not too worried about your tranny. Is this truck a daily driver? Are you worried about smoking your tranny?

 

my truck is my DD and i know my tranny is going to eat **** sooner or later (probably sooner) so im prepared to have it built. if the truck goes down for any reason i still have my 454 to drive (or my gf could drive me around)

 

Well as long as your ready to built yourself a nice reliable tranny I would say go for it. I know a lot of people on this site dislike that cam, but I personally think the power it makes is crazy. Build a good tranny and get a good tune and your truck will scoot pretty good.

 

TPS could be going out.