01 Highlander Stalling

[sitiakab]

Up above I list how I cleaned mine under post name "sitiakab"- and I have the six cylinder engine.

[LifeTech]

Originally Posted by DrRuckus13

Did anyone have the dirty IAC issue with the V6? it sounds like everyone with this problem had an I4?

Yes an old post... but those interested will note that this happens to V6's also.
The author of this thread in fact had an HL Limited...all Limited's had the V6.
Smart to change the rearward bank sparkplugs if yu are removing the intake manifold to do the IAC... yu are there already!

LT

[smcgough]

Originally Posted by DrRuckus13

Did anyone have the dirty IAC issue with the V6? it sounds like everyone with this problem had an I4?

Yes, mine is a V6.

[avconsult]

Note that you don't have to take the IAC off in many cases to correct the sticking issue. The IAC intake port is a slot at the bottom of the throttle body throat, which you can see when you take the air cleaner tube off.

Spray THROTTLE BODY CLEANER (not carb cleaner) into the port with the engine off, let it sit for 15 mintes and start car.

Then have someone crank the steering wheel al the way one direction and spritz the port while that person turns and holds the wheel slightly against the limit, and then releases. The IAC moves kicking up, then reducing the RPM's when the steering pump pressure increases and decreases, and with the cleaner spritzing will usually clean itself nicely.

[Richard Knapp]

Dealer and others could not diagnose the intermittent 2002 Highlander stalling. This car is a 2002 four cylinder Highlander with 170,000 mostly highway miles with all home DIY maintenance. After reading the various reports and suggestions by others in Tundra we developed a solution that should prove very simple and effective. Simply removed the air inlet tube at the carburetor body (only) setting it inches aside for access to the carburetor throat and throttle plate value. With my wife at the started key and no foot on the accelerator I had her crank the engine as I sprayed in Carburetor fluid in short bursts in the black rectangular hole just over the throttle plate valve located in the carburetor throat. So the engine vacuum pulled the cleaner though and burned the junk. Since then all is well with no parts expense or real labor.