Just cleaned the exhaust back pressure tube and sensor and it was so easy. Took about a half hour. I was worried about stripping the fittings but had no prob. I wish i would have done it 6months ago the tube was 98% plugged. It is easy and anyone con do it. Thanks for all the info u guys put on the forum it a great help thanks

 

Keep us posted to see if you see any MPG gain

glad to hear it went well for you bud

 

What did you end up using as your cleaning tool?

 

tie wire 4 the tube and a allen wrench 4 the fittings

 

What caused you to clean it? was your engine running poorly, or was fuel mileage dropping? and how is it now??

 

it was just on my list of things 2 do before the dp tunner. Hopefully I get my gauges this week and my tunner by Nov.

 

Sounds like you're on the same schedule as I am, except you already have the exhaust which I am getting done with the gauges. Working 7x12, I need to send them off to get done.

 

Did you clean the fitting on the exhuast manifold?? I cleaned my tube which was packed full and almost put it back in without cleaning the exhuast manifold which was completly clogged.

 

Cleaned the manifold fitting and ran the truck before reassembly just 2 make sure it was clean. Might do the foil delete and paint the pipes as soon as i find new pipe boots at a good price. I kind of hit the point I don't know where 2 stop maybe if I have the pipes off i should do the W.W. and ccv mod or slow down before I'm broke.

 

how do you know if you need to clean it? what causes it clog up

 

It can cause rough running or poor mileage, I would just say if you have a fair amount of miles on your truck it would probly be good to clean it. Maybe about a 100,000 mile maintenence thing...?..?

 

I'm kind of in the process of cleaning mine while I am right there replacing the water pump.
what exactly is involved in cleaning the manifold side? do you run the engine w/o the tube hooked up @ the manifold to blow any stray soot crap out?
Any harm to run the engine with the manifold side open?

 

What a-rod said, and also if you notice that your exhaust back pressure valve seems to stay closed more and if it takes more throttle to open it back up when you're driving.

They get clogged with the black soot from the exhaust as it builds up over time.

I just do it every fall as part of my routine to get her ready for the winter. Also they tend to corrode and get holes in them, so it's a good idea to look them over every year.

Austin

 

I just used a real little screwdriver and poked through the hole till it felt clean, I wouldnt worry about running the motor while doing it, I dont think a little bit of soot will cause any harm, when you start it back up just let it idle so any crap will just blow through.