[honks]

i have noticed the last couple times i have driven my sierra that it is running pretty rough and is slowly getting worse , rough at idle, big flat spot on take off and vibrates on the highway today i had a bit of a look at it and thought about it sucking air so i didnt have anything to spray around the intake so i used some deodarant(dodgy i know) but while doing this the revs come up this only happened when i sprayed on the joint to the head is it wierd for a gasket to crap itself randomly for know reason or could there be an another problem causing this

[suzibob]

Did u check the bolt tensions to make sure??

[honks]

yeh all bolts are tight

[steak_knife]

replace the gasket..........