olharleyman

I know I read a post about this a few days ago and I can't find it now, The issue is with brake on the idle wants to go to 1k then drop back down over and over until I take my foot off the pedal and then with no brake on it go's to 2k like it is trying to warm up then drops back to 800rpm and repeat just like the foot on the brake issue, I need to get this fixed anyone that can help please point me the right direction this all just started a few hours ago on the fresh rebuild. 22re sorry forgot that.

Thanks all

toyotabull

that sounds like a vacuum issue, check your master cylinder and the vac hose going to it

olharleyman

Come on someone just had this issue speak up what was the solution? I believe it had something to do with a sensor adjustment or something along them lines.

Kiroshu

Um #1 if the brake is affecting idle at all you have a vac leak in the break line going to booster or booster is bad.... #2 the idle on a 22re should be 750 factory but anything between 750-1000 is fine. Is there any codes? Check for vac leaks everywhere.... since you just rebuilt it you might have a disconnected hose somewhere....

olharleyman

It has been running just fine for the last 7-800 miles and all of a sudden today it started doing this, as for the idle it is closer to 750 when it idles but it gets to 800 and starts going back up to 1100 then back to 800 if I let my foot off the brake it runs up like it just started up for the first time in the morning hits 2k and drops back down and starts climbing again. I guess I will check the brake line and see what if anything is up with it leaking any where but I though that I read somewhere that there is a adjustment somewhere that will affect how this is acting.

thook

Well, I don't know about the recent post you're referring to, but there's some older posting.........to include 4crawler..........that points at the idle bypass valve out of adjustment.

This is from a different site, but same info........
http://www.4crawler.com/4x4/TLCA_Tru...ech.04.09.html

If you haven't tinkered at all with the valve, maybe the TB needs some cleaning?

Edit: Right........ you've rebuilt. Kiroshu may be right.......or 4crawler may be right. Hell, I dunno. Check it all, eh. Good luck.

olharleyman

idle screw was backing out after running hard 70-75 for 20-30 mins got new screw from L.C. everything is fine again. Thanks All