ok my truck us due for it's 3000k miles oil change. It has about a 127K on the ticker. I would like to decarbon out the engine and flush the fuel system. IS these procedures I can do myself or do I have to have my mechanic to do this? If I can do this myself what do I need to to do and what parts do I need to clean and decarbon?

 

There are chemical kits that you can buy for removing carbon from the intake manifold, combustion chamber, fuel injection, and throttle body.

I did this last fall when my engine was pinging. It may or may not be a thorough as the machine flush that a shop would use but it worked wonderfully on my engine.

What you need to do is go to an auto parts store and tell them you need something to clean the intake manifold. It's probably not something they keep on the shelf but they may have some in back.

It comes with directions and is very simple to use. I hooked up the bottle to the PCV hose inlet behind the throttle body and the engine vacuum sucked it in.

If you can't find anything then water is actually a very suitable substitute. If you use water, you just need to make sure that you don't allow too much to enter at once. You can control it but using a cap with a pin size hole at the end of a tube. You need just enough to vaporize with the combusting fuel mixture. For some reason, water is very efficient at breaking down carbon.

If you have a shop do this they charge anywhere from $85.00-$125.00.

Also, it's crucial to change the oil after if you use any kind of chemical carbon remover.

 

AMSOIL makes a product called Power Foam that will clean the upper air intake. I have used it on several vehicles that had a pinging problem and it alleviated the ping.

For the fuel system, try Performance Improver. Dissolves fuel system deposits and restores fuel injectors to full flow.

 

There is a product called CD-2 that cleans out carbon build up & other stuff in motors. I think it works pretty well. You just pour it into the crankcase.

 

Adding something to the oil for carbon build-up sounds scary to me. Perhaps if you are doing an oil flush and want to get rid of a lot of gunk. Most engine oil flushes are hard on the bearing surfaces because they are part solvent. If you've run synthetic from the very first oil change there shouldn't be any oil gunk in your motor.

I have also heard that water injection cleans combustion chamber carbon deposits quite effectively. It turns to steam when the air/fuel mix burns... effectively steam cleaning your cylinder head/piston/exhaust valve.