Throttlebody coolent bypass
Thread Starter
Joined: Mar 2004
Posts: 3,385
From: oburg S.C.
Throttlebody coolent bypass
I was wondering if You would gain from bypassing the coolent at the throttlebody. I was thinking of doing it if it would benifit me!
blah to unstable idle, when i had the 3.0 i bypassed the TB coolant caca. Took too long to remove the hoses everytime i wanted to remove the IM, so i bypassed it. No gains, just cuts down a good 5-7 minutes of labor in the removal for the future.
I had no different idle at all, I eliminated the whole cold idle cam crap as a matter of fact, never did I feel a difference. Had it like that for a good 2 yrs at least
I had no different idle at all, I eliminated the whole cold idle cam crap as a matter of fact, never did I feel a difference. Had it like that for a good 2 yrs at least
Thread Starter
Joined: Mar 2004
Posts: 3,385
From: oburg S.C.
Originally Posted by nismology
Why is this in the all-motor forum again? Someone please remind me because i seem to have forgotten.....

95BLKMAX is right, i bypassed mine for simplicity's sake (and i hate the too-high cold idle) when doing the 00vi install. Jumpy idle is only from having the cold idle cam in place, once i looked with my good eye i realized that and took that stuff off and idle is rock-solid. Now I have to tap the gas on a cold start, oh noes...
Originally Posted by Hoooper
i dont think so, it could be useful for all gens, not just 4th
This forum is for "advanced performance".
in the spaguetti of rubber and metal lines over the bellhousing, coming from the front. Find
A- the rubber hoses that attaches to another hard line that take coolant to the rear of the USIM
B- the rubber line that attaches to the bottom of the TB and returns coolant back down to the valley.
Pretty much, disconnect hose A (the feed) from where it hooks up to and loop it over to the hard line where hose B (the return) goes. Congrats, you just by-passed the TB coolant crap. You may now get rid of the coolant hoses related to the TB coolant stuff, AND the fast idle cam caca (since that stuff runs off coolant temp)
A- the rubber hoses that attaches to another hard line that take coolant to the rear of the USIM
B- the rubber line that attaches to the bottom of the TB and returns coolant back down to the valley.
Pretty much, disconnect hose A (the feed) from where it hooks up to and loop it over to the hard line where hose B (the return) goes. Congrats, you just by-passed the TB coolant crap. You may now get rid of the coolant hoses related to the TB coolant stuff, AND the fast idle cam caca (since that stuff runs off coolant temp)
Originally Posted by ghostmax301
how the he!! do you bypass it?
People who have not even looked at their thrtottle body shouldn't be posting in this thread... yet in this particular forum.
Originally Posted by NmexMAX
People who have not even looked at their thrtottle body shouldn't be posting in this thread... yet in this particular forum.
No offense but, I am not new to this, just working on 3hrs of sleep and really dont feel like using common sense.....So therefore, please keep your smart comment to yourself
Originally Posted by VQ'ed
I sense a bit of anger between you guys, leave the guy bypass its coolant and mods you own cars!! keep respect!!
Originally Posted by ghostmax301
how the he!! do you bypass it?
You take the coolant line from behind the rear valve cover (it leads into the intake plenum) and you run that line up to where it hooks into the rigid line below the Throttle Body. If you have done it right it is not running thru your Plenum or your throttle body anymore. I did this on both of my fourth gens with no noticible negative effects. I did not do this for some sort of power gain but just so that it was easier to take my plenum and TB off when ever I wanted to.
It can belong in either 5th or 4th gen forum.
Look at the actual TB before you ask how to do this 'mod'. It's common sense, and it's not anyones fault you're on 180 minutes of sleep.
Look at the actual TB before you ask how to do this 'mod'. It's common sense, and it's not anyones fault you're on 180 minutes of sleep.
Originally Posted by cardana24
I did not do this for some sort of power gain but just so that it was easier to take my plenum and TB off when ever I wanted to.
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