Manifold Gasket Changing

[ClutchBurndout-:(]

i think i may have found out my slight idle hunting cause, i think i can hear a subtle hissing sound coming from the intake manifold, i know theres no easy way to tell if the gasket has gone but how do you go about changing it? are the bolts for the manifold under the throttle body? any tips?

[snozzle]

if its a manifold leak it wont be a hiss.. it will be a ticking noise, it wont sound like a metallic tick but i think the word tick is the best term to use

i hate trying to describe noises via text haha

[WARLORD]

You should do a smoke test first to see if it is what you think it is.

[snozzle]

i just re-read the OP and also noticed your thinking its the cause of idle hunting - i strongly believe a small exaust leak like that (if its even an exhaust leak!) will not cause idle hunting

[t_revz]

i just re-read the OP and also noticed your thinking its the cause of idle hunting - i strongly believe a small exaust leak like that (if its even an exhaust leak!) will not cause idle hunting

he said intake manifold not exhaust. you shouldnt have re-read haha. the bolts for the collector to manifold can be gained between each tube for the inner ones. if you undo the outer ones first it can kinda be kicked over a bit if you need a different angle at the bolts. but maybe try to pin point the leak a little further first

[femno]

i just re-read the OP and also noticed your thinking its the cause of idle hunting - i strongly believe a small exaust leak like that (if its even an exhaust leak!) will not cause idle hunting

Dude intake side! Not exhaust!

An air leak wont give hunting. Just high idle.

25's make a hissing sound all the time inside the plenum. Its just something they do.

Hunting is caused by rich mixture or possibly dirty IAC or incorrect timing or incorrect TPS setting. Might need injector clean, or trying cleaning the afm and IAC, reset timing and TPS.

If its happened all of a sudden and nothing has been touched its most likely fuel related.

[snozzle]

ohhhhhhhh wow my bad hahaha, how did i mis-read that even after reading it so many times >.<

Edited September 29, 2010 by snozzle

[ClutchBurndout-:(]

ok so its not a gasket

ill have to get a mechanic to check the timing

i can probably reset the tps, is this a hard one?