De-Carbonize the Intake Manifold

[Scott B.]

My '93 4.0L has 303,000 miles on it, and has never been apart. It runs fine, and always starts right up.

However, I am considering taking it a long (3000 mile-ish) trip this summer. Ideally, I would like to replace the engine and tranny - but that is not going to happen this year. So, I'm wondering if a little extra preemptive maintenance would be in order, or would I just be giving myself future problems?

Would it be smart to pull off the intake and clean the carbon deposits out of the innards? Theoretically, I should gain a little power/throttle response, and maybe a hint of gas mileage. But reliability is may concern. If it ain't broke, don't fix it - it ain't, so...

Or just leave it alone?

I am a little leary of taking such a long trip with so many mile on the engine. But, it runs fine.

Any thoughts?

 

[IZwack]

Leave it alone - air/fuel ratrio is tracked by the ECU via the oxygen sensor.

 

[jlsparky7]

Wouldnt hurt to clean it. Easy way would be some seafoam. Watch some of my vids and itll help. Ive got one on seafoam and one in cleaning the top part of the intake.
http://www.explorerforum.com/forums/showthread.php?t=241881

 

[Burns]

I vote leave it alone. With the mileage you have getting in there could cause you more problems that you dont have

 

[celly]

wouldnt hurt to clean it. Easy way would be some seafoam.

+1