Hey everyone, i have a sierra 2l dohc (heavy engine i know) and trying to remove the intake plenum to modify, clean etc. I think ive removed all the torx bolts, i cant see any around the flanges, but it seems to be stuck solid still! do i crowbar it off or smash it off with a lump hammer, or is there a special way to remove it? thanks al

Double / triple check there are none missed, then get a block of wood and place that somewhere substantial and thump the wood. Don't do one huge whack, just lots of lesser ones down and upwards. Don't use a crow bar you'll mark the mating surfaces. Take your time

Check that you have undone the 2 nuts holding the thermastadt housing on, you will find that it is integral to the whole inlet manifold.

Regards

Bob

sh*t on ma baaaaaaaaaaaaaalls mr garrison! i havent done removed the thermostat housing :| lol i suck. thanks chaps!

Ah, a fellow dohc user!
Don't beleive the hype, its not as heavy or useless as some would have you believe

hello fellow dohc user! i didnt think there was any others out there! how are you finding it? any probs with the engine, things i need to change look out for? i noticed on both the rocker covers i have ( i have 2 engines lol) the plastic around some of the bolt holes is cracked! leakagE!?
thanks al