Cleaning MAF, TB, IAC, & EGR
 

Been reading all of the "how-to's" and other input on cleaning these items through different threads. I really appreciate all of the input. My question here is about the different cleaners to be used.

I went to Autozone today and they have specific cleaners for everything; one for the TB; one for the MAF; and one for EGR/PCV valves.

Do I need to buy each specific one, or can I buy the MAF sensor cleaner and use it on all of them? I am thinking this one because it is safe for sensors, I don't know about the others.

Thanks.
-Sean.

I mainly use electrical parts cleaner on the MAF and sensor safe throttle body cleaner on the throttle body & EGR/PCV valve. Throttle body cleaner and EGR cleaners are so similar that I wouldn't worry about it. I use the electrical cleaner on the MAF because I think it works better than throttle body cleaner. I don't know if I ever have tried actual MAF cleaner.

Ok, thanks for the information.

-Sean.

Ok, I feel real dumb asking this - but I have to.

In referencing this article: https://blazerforum.com/forum/showth...eat+write+gary I went looking under my hood to confirm where stuff was, and there does not appear to be an EGR valve. At least not where he says it is.

At the front of the intake manifold all i have is the coolant pipe, there is nothing next to it as referenced in his picture with the yellow circle around it. I have tried looking all over the motor without any success in finding it. His example was a 2000, and I have a 2002.

Any help would be great! Thanks!

-Sean.

The Mid-02 on up trucks use updated engines which do not have an EGR valve and have the updated MFI fuel injection spider. One less thing you have to worry about.

Thanks Swartlkk. However, from what I read on hear, I don't know that that is a fair trade off if something were to ever go wrong with the spider...

That is the better spider. Much less to go wrong with it. And it is located in exactly the same place as the older SCFI spider. Actually, it can be swapped into an SCFI application and is the recommended replacement for any '96 thru mid-02 SCFI motor.

About the only down side is that the MFI spider is not capable of flowing as much fuel as the SCFI spider, however, that is not a concern unless you are looking to really squeeze all of the power out of the engine as you can.