Iddle-Up acutator Problem - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-10-2002, 06:12 PM Thread Starter
 
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Iddle-Up acutator Problem

K Guys.... I am trying to figure out what is going on with the TWSV. What happens is this

1)Turn on vehicle and left warm to proper idle
2)Turn on the lights and the engine increases idle speed to proper amount
3) Turn off lights and idle speed remains high (as if I have the lights still on)
4) Look at the Idle-up Actuator and it is still closed
5) Remove the air hose from the TWSV (three way switching vavle) to the to the Idle-up Actuator and it pops open dropping the idle
6) Turn engine off
7) With the air hose from the TWSV to the Idle-up actuator off I can move the Actuator arm freely back and forth or open and shut, no resistance
8) Tested the TWSV and it is fine. I get vacuum when the lights are on and nothing when they are off.
9) Plug air hose from TWSV to Idle-up Actuator and turned on the truck
10) Once again the acutator increases the idle when the lights are on but when they are off it does not return to its original position until I unplug the air hose running from the TWSV to the Actuator.

Does this mean that the Idle-up Actuator is finished? I have attached a pic of it

Thanks
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post #2 of (permalink) Old 10-10-2002, 06:14 PM Thread Starter
 
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Re: Iddle-Up acutator Problem

Here is another pic of the Idle-Up Actuator up close.

Any help would be appreciated....

Thanks
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post #3 of (permalink) Old 10-10-2002, 06:40 PM
 
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Re: Iddle-Up acutator Problem

I had a similar problem. Just unhook it and bump the idle up to about 950 rpm...........mine has been that way for years with no problems.
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post #4 of (permalink) Old 10-10-2002, 06:51 PM Thread Starter
 
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Re: Iddle-Up acutator Problem

If it is not a big cost or amount of time I would rather fix it.
I was also having problems with the truck keeping idle when first started up in the colder mornings and thought that the Idle-Up Actuator had something to do with it. Am I wrong.... When I start the truck in the morning I have to idle it up until it warms. If not it just chugs at 700 RPM.

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