Idea for easy IACV cleaning???
10-03-2005, 01:54 AM
#1
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Idea for easy IACV cleaning???
Hi,
I want to clean my IACV just to try and get everything in the engine as close as possible to new and I don't feel confident pulling it apart.
What if i were to disconnect the hose from the air intake and while running the car, hold a household vacuum cleaner up to the hole in plastic air intake pipe to get the air flow meter to read flow of some sort (even if it's too little or too much, it shouldn't matter too much for this exercise right?) and spray heaps of throttle body cleaner into the valve until the engine stalls or nearly stalls. I don't mind seeing a bit of black smoke.
Would this work?
I want to clean my IACV just to try and get everything in the engine as close as possible to new and I don't feel confident pulling it apart.
What if i were to disconnect the hose from the air intake and while running the car, hold a household vacuum cleaner up to the hole in plastic air intake pipe to get the air flow meter to read flow of some sort (even if it's too little or too much, it shouldn't matter too much for this exercise right?) and spray heaps of throttle body cleaner into the valve until the engine stalls or nearly stalls. I don't mind seeing a bit of black smoke.
Would this work?
10-03-2005, 03:29 AM
#2
10-03-2005, 03:40 AM
#3
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I'm not interested in cleaning the throttle body. I believe that air rushes so fast through the throttle body that any deposits that would make a difference would be blown off anyway. Just The IACV valve. What is the best way to be able to spray throttle body cleaner into the IACV but still have air flowing through the MAF?
10-03-2005, 03:45 AM
#4
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Originally Posted by MyGreenMax94
Here ya go.....
IACV http://www.cardomain.com/ride/748507/4
10-03-2005, 03:51 AM
#6
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Originally Posted by Wiking
Jam buttefly to 1500rpm, take IACV hose out, spray.
Just woke up...No coffee yet...
10-03-2005, 04:05 AM
#9
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Originally Posted by bradsm87
Hang on, is the IACV still open if the throttle is open too? I thought it wouldn't be.
The reason is, the TPS zero pos sw has to be open and airflow meted by MAF to keep engine running when IACV hose is out /idle circ is killed.
Cleanup /opening is piece of cake.
10-03-2005, 05:40 AM
#10
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I just pulled both of them apart over the weekend and used 'GM Cleans' and few dozens cotton swabs. There was not much deposits in the TB, but IACV had quite some black powder that just fell out of it when I pulled the stepper motor and lots of deposits in the body and on the motor shaft (the part, that looks like little p.nis). One thing I am not sure about now is ENORMOUS low end power. When I touch throttle from dead stop, the car wants to spin wheels. Could it be a problem that I did not put the TPS exactly at the same angle? I just put it where I thought it was by the bolt marks on its bracket.
10-03-2005, 05:50 AM
#12
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Originally Posted by Tarzan
I just pulled both of them apart over the weekend and used 'GM Kleanz' and few dozens cotton swabs. There was not much deposits in the TB, but IACV had quite some black powder that just fell out of it when I pulled the stepper motor and lots of deposits in the body and on the motor shaft (the part, that looks like little p.nis). One thing I am not sure about now is ENORMOUS low end power. When I touch throttle from dead stop, the car wants to spin wheels. Could it be a problem that I did not put the TPS exactly at the same angle? I just put it where I thought it was by the bolt marks on its bracket.
10-03-2005, 06:11 AM
#13
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Originally Posted by bradsm87
...I think the IACV valve would ...
With spray no way to clean stepper axle/valve screw. And that is the cause of jerky valve movement.
10-03-2005, 06:16 AM
#14
You didn't say if you have a VG or a VE, but I am assuming you have a VG.
Since you don't feel comfortable taking YOUR IACV off, I suggest you find a u-pull-it junkyard and take one off of a wrecked car (they will probably charge like $10). Then, you can see how easy it is to disassemble. From that point, you can clean that one out really good, buy a gasket (make sure you have this before doing any work on your own car) then either install it on your own car or take yours off and clean it, then reinstall it.
I have not worked on a VG, but the IACV in a VE is designed where there is really not a good way to clean it without taking it off. All of the entrances have little metal mazes that don't allow any kind of spray directly on the dirty parts.
Good luck
Since you don't feel comfortable taking YOUR IACV off, I suggest you find a u-pull-it junkyard and take one off of a wrecked car (they will probably charge like $10). Then, you can see how easy it is to disassemble. From that point, you can clean that one out really good, buy a gasket (make sure you have this before doing any work on your own car) then either install it on your own car or take yours off and clean it, then reinstall it.
I have not worked on a VG, but the IACV in a VE is designed where there is really not a good way to clean it without taking it off. All of the entrances have little metal mazes that don't allow any kind of spray directly on the dirty parts.
Good luck
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