air conditioning problem
Jul 23, 2006 | 12:13 PM
#1
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Air conditioning prtoblem
have a 94 toyota p/u, air works great, problem is when air is on and the break is applied the engine revs constantly up and down very fast and consistant. this cant be normal. what gives HELP!!!!!!!!!!! :pat:
Jul 23, 2006 | 12:17 PM
#2
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air conditioning problem
have a 94 toyo p/u air works great, only problem is when air is on and the break is applied the engine revs up and down very quickly and, constantly, this cant be normal what gives HELP!!!!!
Last edited by gomez3247; Jul 23, 2006 at 12:23 PM.
Jul 23, 2006 | 01:18 PM
#4
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From: Kansas City
I rememebr reading that something about your idle being too high. WHen you hit the brake, it grabs vacuum, and the vacuum advance tries to raise the idle, bu tit is already too high, so it shuts it down, then brings it up, puts it down. I bet I am half right about this.
Try this thread at Toyota Nation http://www.toyotanation.com/forum/t113388.html
its very long, but youll know more than you wanted to about idel problems.
Try this thread at Toyota Nation http://www.toyotanation.com/forum/t113388.html
its very long, but youll know more than you wanted to about idel problems.
Jul 23, 2006 | 01:58 PM
#6
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I had that problem too. Adjust this greenish colored piece here:
It screws into the intake manifold between the E and the F. Twist the plastic screw on top clockwise with your fingers to lower the AC idle, but BE CAREFUL. I broke this screw before and it cost like $30 to replace.
If your having the same problem while applying the brakes, your idle speed is too high. To adjust that, turn the gold screw on the throttle body with a flathead screwdriver.
It screws into the intake manifold between the E and the F. Twist the plastic screw on top clockwise with your fingers to lower the AC idle, but BE CAREFUL. I broke this screw before and it cost like $30 to replace.
If your having the same problem while applying the brakes, your idle speed is too high. To adjust that, turn the gold screw on the throttle body with a flathead screwdriver.
Last edited by all_terrain17; Jul 23, 2006 at 01:59 PM.
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Jul 26, 2006 | 05:26 PM
#8
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i found the right forum no post or responce in 30 days .........................i aint got that kind of time .............. You only got time to say "get in the right forum .??? save your valuable time and dont bother responding at all. much less you dont even own a yota as you so elequently stated, so keep your NEG. responces to yourself.
Jul 26, 2006 | 07:37 PM
#10
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From: hermitage,tn.
im having a similar problem with my 95 4runner, only mine wont idle up 99% of the time(when i turn on the air).sometimes it holds steady rpm,but most of the time it drops.is that the "idle up valve" you are suppost to adjust?
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