Watch those air filters.

[chris142]

My truck was down on power and really smoking. My restriction gauge showed a slight restriction but not pulled all the way down.

I figured I would try a new filter. Holy cow did it make a huge difference! Power up smoke gone!

Old filter only had 4000 miles on it too.

 

[79jasper]

Yeah, I hear the sensors wear out. But typically they say it's more clogged than it is. (Since the spring gets weak)
Is that a stock sensor?
Could maybe go one "size" smaller.

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[pelky350]

I've never used a air filter long enough to have one of those pressure sensors tell me my filters bad, most of what I heard Is those tend to show red when it's basically plugged solid?

 

[chris142]

Yeah, I hear the sensors wear out. But typically they say it's more clogged than it is. (Since the spring gets weak)
Is that a stock sensor?
Could maybe go one "size" smaller.

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No I bought it from a local truck parts place.

 

[snicklas]

Also, watch out for the foam "pre-filter". They are pretty tight..... like tight enough to not let ether through...... yes, you read that right, and this is not an "internet legend" story..... I was running the can of "Start Ya *******"!!

I've also read several times on here that foam can cause a filter minder to pop "plugged" on a brand new filter........ my foam pre-filter has earned a nice place on a shelf.......

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[chris142]

Ya i take mine off too. Makes the intake roar.

 

[Cubey]

What sensor is being discussed? Must be something not on a 6.9.

 

[chillman88]

What sensor is being discussed? Must be something not on a 6.9.

Not so much a sensor as a little restriction gauge that goes on the air filter housing. Usually screws into that threaded port on top. Clear tube with a indicator in it that basically changes color when the filter is overly restricted.

EDIT: These

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[chris142]

Not so much a sensor as a little restriction gauge that goes on the air filter housing. Usually screws into that threaded port on top. Clear tube with a indicator in it that basically changes color when the filter is overly restricted.

EDIT: These

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Yep. Mine was not that far down either.

 

[Hydro-idi]

Those air filter sensors are damn near useless. The shop i go for oil changes to used to base air filter replacement on that sensor when I would bring my 6.7 psd in for service. The sensor read good so they wouldn’t change filter. Then one day noticed a serious lack of power. Took airfilter off and it was full of caked on dirt & oil only after 2 months use and about 8k miles.
Now I replace airfilter every month or so since truck sees dusty roads every day.

 

[79jasper]

Another reason to adjust the range of the sensor.......

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[chris142]

Another reason to adjust the range of the sensor.......

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How do u do that?

 

[79jasper]

If you have the one that is 25" h2o (135501-00825), get the one that is 20" h2o. (135501-00820)

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[Thewespaul]

Or just get a vacuum gauge that has the ability to remember maximum draw.
I trust that over those dinky filter minders

 

[Figor]

What is the "go to" filter? My truck has started blowing white smoke like crazy. I'd like to start with the easy stuff first.