quick question... - Toyota Nation Forum : Toyota Car and Truck Forums

93XLEcamry · 12-27-2010, 11:59 PM

is the idle air control for the gen3 v6 in the tb also??? or is it else where....because i checked the tb and didnt see any hole leading to the IAC or anything....or maybe i just missed it???...help plz...

***BMR*** · 12-28-2010, 05:16 PM

Here's a DIY thread showing where it is and how to take it off and clean it.

Edit:
Ooo... wait, that's for the 3VZ engine in the '92 & '93. It's different if yours is a later model. I'm guessing from your username that you've got a '93?

***LynchburgCSI*** · 12-28-2010, 06:04 PM

If he has a '93 then it's the 3vz. For USDM cars, 3VZ = 92-93, 1MZ = 94-01. The 1MZ should be similar.

pmesfun · 12-28-2010, 06:17 PM

As shown in the picture, the IAC is on the bottom of the TB for the 1mz. In the DIY, the IAC is shown on the back side of the plenum for the 3vz.

93XLEcamry · 12-30-2010, 05:49 PM

for those who are familiar with the 3vz....once i take off the two bolts....do i just clean off the part leading to the tb and the back side of the iac...or do i have to actually take off the three screws on the iac and clean in the inside of it?? which i think is the rotor??..

i know this sounds confusing but if you have the 3vz then you'll know what im talking about...

***BMR*** · 12-30-2010, 08:37 PM

When I did mine, I took it apart far enough to get the center part out (no idea what that's called). It's been quite a while, but I *think* those three screws and the cap need to come off to do it. There was quite a bit of built-up crap inside there that I couldn't get cleaned out without fully taking it apart. I had to use a plastic scraper to get it off; it was baked-on crusty stuff. No way some solvent or something like that was gonna get it done.

93XLEcamry · 12-30-2010, 11:48 PM

ok i'll do that....but does anyone know why after i cleaned it (the tb and part of the iac) now its stalling while in park...and before it only stalls in drive....seems like i've made it worse???....any idea as to what may have happen??

or is it a normal thing after cleaning those things???

***JohnGD*** · 12-30-2010, 11:56 PM

+1 what BMR said. It needs to be completely disassembled to properly clean because of the crap under the rotor (looking into the vents).

Make sure all the connectors and hoses are put back to the correct locations.

Is the rotor in the IAC positioned correctly? I don't think the motor can be mounted if it's not, but just in case.

A clean IAC should make the engine run smoothly and seem to give you a little more power.

Quote:

Originally Posted by 93XLEcamry

ok i'll do that....but does anyone know why after i cleaned it (the tb and part of the iac) now its stalling while in park...and before it only stalls in drive....seems like i've made it worse???....any idea as to what may have happen??

or is it a normal thing after cleaning those things???

93XLEcamry · 12-31-2010, 12:06 AM

i'll fully take it apart tomorrow and clean it out...and recommendation as to which cleaner i should use???....there are too many and i just want to be sure...thankss..

***JohnGD*** · 12-31-2010, 12:49 AM

Valvoline throttle body cleaner from Autozone.
http://www.valvoline.com/products/br...dy-cleaners/51

or CRC throttle body cleaner. Works but doesn't seem as strong as Valvoline.

Quote:

Originally Posted by 93XLEcamry

i'll fully take it apart tomorrow and clean it out...and recommendation as to which cleaner i should use???....there are too many and i just want to be sure...thankss..

***fenixus*** · 12-31-2010, 12:55 AM

Sea Foam Deep Creep (foamy spray) is my favorite for TB & IAC, you can get it from Autozone or Advance Auto as well.

make sure you re-connected all vacuum lines you touched to correct spots.

93XLEcamry · 12-31-2010, 12:56 AM

last question...once i open up the iac, how would i go about cleaning it...spray some of the cleaner on to it...and wipe off....or there is this diy on here, and the guy used grease and wd to spray the rotor stick thingy.....which one is the safest or best way to clean it??

***BMR*** · 12-31-2010, 01:30 PM

Quote:

Originally Posted by 93XLEcamry

....but does anyone know why after i cleaned it (the tb and part of the iac) now its stalling while in park...and before it only stalls in drive....seems like i've made it worse???....any idea as to what may have happen??

I'm guessing you used some spray-in TB cleaner?... my guess is that is loosened up some crud that made it's way into the IAC and causing it to have problems in a different way.

As to what solvent to use to clean it when it's disassembled, I didn't use anything on mine. Just a plastic scraper (not metal) to avoid scratching it up and a shop towel to rub it down. It wasn't horribly difficult to get it pristine clean. Maybe 15 minutes worth of picking and wiping at it.

***BMR*** · 12-31-2010, 01:45 PM

Quote:

Originally Posted by 93XLEcamry

...and the guy used grease and wd to spray the rotor stick thingy.....which one is the safest or best way to clean it??

I didn't futz with the leadscrew's grease or put any WD40 in the bearing. Mine was extremely clean in that area. So it didn't seem like a good idea to me to add any grease or put WD40 in the bearing. The only reason to get in there is to get the center rotor/pintle/thingamajig out for cleaning.

Oh, and when you get it all back together, if it's like mine it won't start or idle at all unless given some throttle. Mine took about 6 restarting cycles before the system had recalibrated itself. It idles perfectly ever since.

93XLEcamry · 12-31-2010, 02:52 PM

i hate this...........one of the screws on the iac which is the phillips is how would i say this....messed up??...the top of the phillips is completely worn off...so i got two screws off now one wont come off...any suggestions??

btw thanks bmr...i will take that advice into consideration...once im able to take the damn thing off...