94 Air Box questions

[farmer]

So today I dismantled my airbox to find and remove the air silencer but couldn't find it. Is it the very first piece that has the hose over to the exhaust manifold? and also i found that the tube from MAF to TB was very dirty and so was the TB itself. whats a good way to clean all this crap off?

 

[88_Eddie]

throttle body cleaner, most parts stores have it. they also sell MAF cleaner

 

[Spowerback]

water and air jet compressor

 

[daniel3507]

TB cleaner will do it best. water will be strong enough. Im pretty sure that the 94 doesnt have the silencer. Im not sure when they started using them but im pretty sure that it was after 94

 

[farmer]

alright just hose it all out with TB cleaner, same as carb cleaner? And after all the looking I did I wouldn't be surprised if there weren't a silencer, I looked everywhere!

 

[daniel3507]

The air silencer is on the other side of the radiator support. It's right next to the passenger side headlight a little black piece of plastic.

got a pic?

 

[farmer]

Ok I will take a pic of mine tonight, I don't think I have one as the hose doesn't go all the way to the radiator support.

 

[wahl_7s]

alright just hose it all out with TB cleaner, same as carb cleaner? And after all the looking I did I wouldn't be surprised if there weren't a silencer, I looked everywhere!

its not the same i believe carb cleaner leaves an oily residue i just use brake clean no residue dries guick

 

[farmer]

ok, is it safe for the MAF sensor too?

 

[The Bandit]

I know this thread is kinda old. But that "silencer" over the stock air inlet is ridiculous. I don't see how the engine can pull enough air to run through that tiny little slot. I'd pry that damn thing off with a screwdriver.

 

[Big Jim M]

Hmmm!

I know this thread is kinda old. But that "silencer" over the stock air inlet is ridiculous. I don't see how the engine can pull enough air to run through that tiny little slot. I'd pry that damn thing off with a screwdriver.

YOU don't see how????? And yet it does...don't it! Perhaps you should stay in the drivers seat and stay out from under the hood of these vehicles.
REAL engineers put it thataway! Who in hell are YOU to "not see how"?
Big JIm

 

[farmer]

Hey Jim, why don't you tell him how you really feel
Just out of curiosity Jim, what is the benefit of leaving the stock air box inlet on versus none at all? Besides the hotter air coming in, I think we all know that.

 

[The Bandit]

I've got a pretty good conception of airflow being drawn into the engine, but the one on the '92 4.0 Explorer I own has a piece of plastic on the outside of the hole in the core support that is only open at the top in tiny slit. I'm assuming that this stayed the same on the Explorer up until '94. Maybe mine is out of the ordinary. Either way, I'm not saying the OP should hoseclamp his MAF to the throttle body and stick a cone filter on the end of it CUZ IT WILL GIV U MOAR POWER I DID IT TO MY RANGER AND IT GAVE ME MOAR POWER THAN WHEN I PUT MY SPOILER ON!!!!!!!!!!!!1

My 2.3 Ranger didn't have one over the core support, but did have the bizzare Dildo/Nerf Football in the air intake assembly. I pulled it out, and there was a noticeable difference in throttle response. This is especially important to me, as we have so many steep hills and such around here.

I think the goal of most engineers throughout the last 20 years or so has been to eliminate NVH (Noise, Vibration, Harshness) from vehicles. I personally don't mind if I hear a faint whistle under the hood. However, when these things rolled off the lot in the 90's gas was cheap and everyone buying these things were trying to forget about the noisy, harsh, and crude clap traps from the 60's and 70's.

But by no means think I'm calling you out or anything, I'm just stating my opinion thats based on my experiences.

I do actually plan on attending a test and tune night this Friday and running my ranger with and without the silencer installed in the air assembly to see if it makes a noticeable difference.

 

[Big Jim M]

Yeah them

I've got a pretty good conception of airflow being drawn into the engine, but the one on the '92 4.0 Explorer I own has a piece of plastic on the outside of the hole in the core support that is only open at the top in tiny slit. I'm assuming that this stayed the same on the Explorer up until '94. Maybe mine is out of the ordinary. Either way, I'm not saying the OP should hoseclamp his MAF to the throttle body and stick a cone filter on the end of it CUZ IT WILL GIV U MOAR POWER I DID IT TO MY RANGER AND IT GAVE ME MOAR POWER THAN WHEN I PUT MY SPOILER ON!!!!!!!!!!!!1

My 2.3 Ranger didn't have one over the core support, but did have the bizzare Dildo/Nerf Football in the air intake assembly. I pulled it out, and there was a noticeable difference in throttle response. This is especially important to me, as we have so many steep hills and such around here.

I think the goal of most engineers throughout the last 20 years or so has been to eliminate NVH (Noise, Vibration, Harshness) from vehicles. I personally don't mind if I hear a faint whistle under the hood. However, when these things rolled off the lot in the 90's gas was cheap and everyone buying these things were trying to forget about the noisy, harsh, and crude clap traps from the 60's and 70's.

But by no means think I'm calling you out or anything, I'm just stating my opinion thats based on my experiences.

I do actually plan on attending a test and tune night this Friday and running my ranger with and without the silencer installed in the air assembly to see if it makes a noticeable difference.

Ford engineers are really STUPID ain't they? Them idiots did all sorts of stuff that make our rides run bad!! Why hell, if you can HEAR the intake it means you are running better...don't it?
Test after test has proved all them modifications to the intake make no difference except more NOISE!
You must have one hell of a good set of ears!
Silly guys think that they are getting more mixture after these modifications.. If that were true the engine would clatter so loud they would quickly put it all back on there..
Armchair engineers amaze me.
Big Jim

 

[The Bandit]

Nah, I'm not calling them stupid-and I'm also sure they didn't do stuff just to make our trucks run bad. I'm just saying that there were compromises made when it came to NVH. I'm sure we'd all get noticeably better gas mileage if our trucks came without sound deadening, glass, carpet, and door panels. But then who would buy one? The late 80's/90's was the beggining of the "Personal Luxury Vehicle" and engineers were eager to try anything new concept to make sure you could not hear or smell your vehicle run to compete with the Japanese. This also explains the rapid demise and redesign of so many "clunky" vehicles in that time period. Such as the First Generation S-10 and 73-87 Chevy Fullsize.

I'm also not saying that more noise is a good thing either. I expect that what I done to my 2.3 as far as removing the silencer was probably not even good for 1 horsepower to the rear wheels. However, it did seem to broaden the power curve for the little truck. Allowing it to climb grades at steady throttle instead of a full kickdown as before.

The thing that did help the truck the most was a new paper filter, and zip-tying the slack out of the throttle cable.

But like I said, I have my Nerf Football rolling around in the toolbox to re-install for test and tune night. The truck is an Automatic with no probability of wheel-spin so I don't expect it'll be too hard to keep consistent. I've also got an extra factory airbox that I'm going to mutilate just to prove to myself that cutting them does not work. So we will see. If the gains I felt from removing my Nerf Football was a placebo effect, then I will gladly reinstall it and eliminate the slight sssssssss when I'm running 3/4 throttle down the highway.