rough idle, heavy knocking

[adam95]

my truck 95 psd turbo 5speed has been idleing rough on and off and starting a little harder then usual. I dont seem to be losing any power though. When its idling hard theres a really loud knock and clunking that sounds like its coming from the bottom end toward the transmission side. any thoughts would be great thanks guys!!

[stealth_600rr]

this will sound stupid maybe but check your oil level.... low oil will cause air pockets in the high pressure oil pump that will in turn cause rough idle and that knock

[willypscustoms]

i experiance this when it is time to change my oil and after i change it it idles smoother and knock goes away.

[LTFOX]

Originally Posted by adam95

my truck 95 psd turbo 5speed has been idleing rough on and off and starting a little harder then usual. I dont seem to be losing any power though. When its idling hard theres a really loud knock and clunking that sounds like its coming from the bottom end toward the transmission side. any thoughts would be great thanks guys!!

When the dual mass flywheel is going out it'll make alot of noise at idle and make your truck sound ruff. Ya still got a stock clutch??

[pipelayerjdh]

Is the truck making any blue smoke?

[rankroddin250]

sounds like it time to trade it off! j/k

[Texas_Outlaw]

Originally Posted by LTFOX

When the dual mass flywheel is going out it'll make alot of noise at idle and make your truck sound ruff. Ya still got a stock clutch??

I'll second that. We have had several trucks come in making that kind of noise due to the DMFW.

[adam95]

thanks for the tips guys im pretty sure you hit the nail on the head with the DMFW because thats about what it sounds like. Does anyone know where a good place to buy a good aftermarket one is.

[MrJohnWayne]

you can go with a southbend clutch. comes with a new flywheel and the clutch is better than any stock replacement.