Thanks for the instructions, I just did mine and it made your dirty pic look clean compared to mine. I don't know if it blew anything out when I plugged the vacum port and ran it, but it threw a check engine light for EGR malfunction I had to clear.

 

Should probably be noted that the CEL is normal if the EGR valve is not installed both affixed to the engine and connected electrically.

 

I have a 2002 4x4 2dr 4.3 blazer and the egr valve is not at the front of the engine,and i cannot find it,anybody know were it is

 

You don't have to worry about that. The mid-'02+ don't have a conventional EGR system.

 

can you post a link to the MAF sensor cleaning?
Thanks

 

https://blazerforum.com/m_145331/tm.htm

Here's the link for the MAF How to. Great write up Gary. I will be doing this soon to my truck.

 

NICE stuff. Great write ups !!!!!
Much appreciated here in Va. Beach.

Gary B.

 

the pics are missing for the MAF cleaning job

 

Fixed.

 

I think I am going to do this and the MAF this weekend. Will the CEL light come automatically when I start it up withouth the EGR installed? If so how do you get the light to turn off?