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Old 04-17-2012, 07:30 AM   #1 (permalink)
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Bypass Idle Air Control?

Is there a simple way to bypass the high idle Air Control valve on my 89 22RE? From what I can tell there is a coolant hose that runs in there that switches the valve once it gets warmed up.

I have seen someone put some duct tape over the intake for the valve, but I'm looking for something a little better, that can be switched on and off.

The truck is my DD, but I use it for hauling firewood out back, and the high idle is a real pain. I'm sure you guys do something all the time for crawlers.
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Old 04-17-2012, 12:19 PM   #2 (permalink)
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Quote:
Originally Posted by sometoyotaguy View Post
Is there a simple way to bypass the high idle Air Control valve on my 89 22RE? From what I can tell there is a coolant hose that runs in there that switches the valve once it gets warmed up.

I have seen someone put some duct tape over the intake for the valve, but I'm looking for something a little better, that can be switched on and off.

The truck is my DD, but I use it for hauling firewood out back, and the high idle is a real pain. I'm sure you guys do something all the time for crawlers.
The valve is spring operated and slowly opens\closes depending on the coolant temperature. Not sure why you want to eliminate it? It's only running at high idle for a few minutes
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Old 04-17-2012, 01:55 PM   #3 (permalink)
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The valve is spring operated and slowly opens\closes depending on the coolant temperature. Not sure why you want to eliminate it? It's only running at high idle for a few minutes

I drive in, and load up. 4 Low isn't very low on these things, and tight areas are harder to deal with. If it's warmed up, the regular idle isn't bad. Usually, it's cold enough out, that I'd have to wait 10 min for it to warm up enough to kick down.

Maybe, I'll see if I can find another assembly and see if I can mod it with a screw or something. I don't want to mess up the original.
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Old 04-17-2012, 05:47 PM   #4 (permalink)
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someone on here posted up how to adjust the valve. You had to remove it and then adjust it. As for your problems, do you have a stock 192 thermostat in it? Is it working properly? Make sure you don't have any air pockets in the cooling system, as air pockets trapped in the auxiliary valve will fool the valve into thinking the engine is cold, and will fast idle. If you are waiting for it to warm up before you go, you'll be waiting some time. With efi engines, as soon as you have good oil pressure then start driving. The driving will warm the engine up faster than fast idling it will, and you won't be getting zero miles to the gallon while doing it.
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