Air filter restriction gauge - Diesel Forum - TheDieselStop.com
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6.0L Power Stroke Engine and Drivetrain Discussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 12-11-2005, 12:21 AM   #1 (permalink)
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Air filter restriction gauge

Does anyone know how to read the air filter restriction gauge? (It looks like a little plunger located on the stock airbox) It's supposed to read the air restriction and let you know when to change the air filter. The manual says to check it at 7500 miles, and replace the air filter if needed. Also, i need a general idea of when are you all changing your air filters.

After reading all the posts, I have decided to leave the intake stock. The magority of members have said that the stock Donaldson flows well and filters the best. It seems the general consensus is that the minor improvement in flow of aftermarket intakes does not make a significant difference in throttle response. If anyone has a different opinion or experience please share it with me. I have learned a lot from the members on this site.
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Old 12-11-2005, 06:35 AM   #2 (permalink)
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Re: Air filter restriction gauge

After owning 4 different 6.0's I have never seen them move even slightly. I think the filter has to be real dirty and blocked for it to move. [img]/ubbthreads/images/graemlins/shrug.gif[/img]
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Old 12-11-2005, 11:29 AM   #3 (permalink)
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Re: Air filter restriction gauge

The yellow band will move toward the air filter under heavier loads. The dirtier the filter the further it will move. It will stay at the furtherest point until reset by pushing in the yellow button on the end. The factory filter should last at least 30k miles under highway conditions. If you want to check the filter minder, you can unplug it, then remove by slowly pulling and twisting it out of the grommet. Then suck on the end, you should be able to draw the indicator all the way to the end fairly easily. Just make sure you reset and plug it back in when you reinstall it.
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Old 12-12-2005, 10:33 AM   #4 (permalink)
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Re: Air filter restriction gauge

I've got 30,000 miles on my 05 (mostly highway) and the air filter restriction gauge has not yet moved. Engine performance and mpg have not decreased. I plan on changing it after 50,000 (just because)if the filter lasts that long without showing restriction or loss of engine performance.

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Old 12-12-2005, 11:58 AM   #5 (permalink)
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Re: Air filter restriction gauge

We had a heavy snow storm here on Friday. On the way home from work I had my light on the dash go on telling me the filter needed replacement. I got home and the gauge on the filter was peged all the way in. I pushed it on the back to reset it. I then revved the engine and the guage did not move. I have heard on here before that sometimes in heavy rain or snow they get clogged.
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Old 12-12-2005, 12:38 PM   #6 (permalink)
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Re: Air filter restriction gauge

Heavy snow can definitely clog the air filter housing. The good thing is when it melts it will run out of the drain hole and the filter housing will unclog and be back to normal. Just revving the engine does not pull anywhere near the amount of air the engine will draw at high revs and boost pressures.
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Old 12-12-2005, 03:37 PM   #7 (permalink)
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Re: Air filter restriction gauge

True enough, I've read the same thing from others with the same experience. If I ever have the problem with snow occluding the filter in southeast Texas, the rest of the country will be in the next ice age! [img]/ubbthreads/images/graemlins/laugh.gif[/img]
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