How reliable was your 4.2 engine? Did your truck have any problems?

 

Very reliable. Mine is an 02 with 133,000 miles. Only thing I had to do was replace the upper plenum gasket and isolator boltS. Not too bad to do over all. Now I am gettin 18-19 mpg city and 21-23 mpg hyw.

 

mine is a 02 that just hit 80,000. but im only getting 10mpg.

 

My 02 has about 265 thousand miles on it, still running good!

 

I was at one time too when I replaced the gaskets and bolts I checked the egr ports 4 of 6 were clogged shut.

 

An old work truck I had was an '02 with the 4.2 in it. Great little truck, it had 305,148 on it when I turned it in for the equipment auction.

 

what are egr ports. whAt are you getting now after you cleaned or replaced them. i need to get better mileage

 

The egr ports are under the intake. Have to take it off. I wish I would of got a pic. Srry. U don't replace em just take a tooth pick or something like tht to clean em out. After I did that I vaccumed it too. I was getting bout 10 mpg highway. And even worse city. Now since all cleaned and bolts replaced and gasket. I am getting close to 22-25 hiwy and 17-19 city. Ill do a quick search for egr ports and see if I can find a pic.

 

This is what it looks like without the intake on.




The little shiny hole on back is the egr port. There r 6. Hope this helps some.

 

It did, thanks alot