ok. so i have seen in other posts that cleaning the throttle body can be a cure for a motor going into limp mode. so i removed it and cleaned it. haven't put it back on yet because i am trying to figure out how to test the IP sensor. while looking thru my JTIS for this test, i read that you should never clean the throttle body because there is a coating that is put on during manufacturing. i read that one guy clean his, and said it worked for 3 months. i wonder if this is why. has anyone else heard of this coating? can you get this coating they are referring to?

 

this coating is from factory to prevent wear on the metal itself from small particulate;s.To my knowledge,sicnc air does have some abbrasive quality,this coating is most likley worn off after a a year at most.Clean the trottle body as you were,and be confident as long as you buy the proper solvent for the job

 

Jon, if you look at the auto parts store, they sell 3 types of cleaners for the air intake system. You have the standard carb cleaner. DO NOT!!!!!! use this unless you intend to wipe the coating (whatever may be left) off of the throttlebody. Then you have Mass Air Flow Cleaner. while this will work, this is meant more for the MAF sensor (as the name implies. Finally you have the Throttle Body cleaner. This is specially formulated to not chemically remove the coating that is on the inside of the throttlebody. Make sure to clean the edge of the butterfly valve to prevent any future sticking (dirt loves to collect on the edge).

 

Thermo, using wd-40 shouldn't hurt the coating or do you think that's to much of a cleaner and it will remove the coating. It's suppose to be some kind of clear coat, am I right on that?

 

I don't think WD has solvents, but I'd still get the right stuff. You can't imagine the problems you'll have if the coating comes off. The flap will stick, it'll rust, it'll oxidize, it will be a nightmare and you will have to spend a grand to replace it, when you could have spent 9.00 on the right cleaner.

 

Agree with Sidewalkman. Don't save $9 to spend $$$ later. Ask your auto parts store and read the labels to find a throttle body cleaner that is safe for coated throttle bodies. The directions/labeling should be pretty explicit about whether a given product is safe to use in coated applications.

 

Vai, WD-40 will not hurt the throttle body coating since WD-40 is really nothing more than fish oil. So, you are good there. Granted, I think you will find that because it is not a solvent based product, it is not going to do much to the build up.

Like was mentioned, do some looking around at the auto parts place and you will find the right stuff for pretty cheap.

 

From the WD40 Site....http://www.wd40.com/about-us/myths-legends-fun-facts/

What a Fish story!
Myth: WD-40 contains fish oil.
Fact:
Consumers have told us over the years that they have caught some of the biggest fish ever after protecting their fish hooks and lures with WD-40. We believe this legend came from folks assuming that the product must contain fish oil since it appears to attract fish. Sorry Charlie®, it just ain’t so.

WD-40 Company has taken steps to respect and conserve the environment, and encourages its users to do the same. While WD-40 can be used to help protect fishing equipment from rust and corrosion, WD-40 Company does not recommend using WD-40 to attract fish