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Air Filter Guage?

clintlight27

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clintlight27 Enthusiast

clintlight27

Posted
Posted

I ended up buying an 07 classic extended cab with a 5.3l ho V8, under the hood near the air filter box there is a guage with red and green markings and a reset button what is this? I know it must have somehing to do with the air filter. And on a side note why does gm use torx screws on the air filter box it's just a pita.

pm26 Senior Enthusiast

pm26

Posted
Posted

Air filter indicators (it's not a gauge) have been used on Army trucks for decades. My 1969 2.5 ton 6X6 has it. It is located inside the cab just under the steering wheel.

Midwestcruiser Enthusiast

Midwestcruiser

Posted
Posted

It's a gauge that tells you how restricted the air filter is. As you filter gets dirty, less air passes and the gauge moves toward the red...it's kinda like an idiot light. When it's red, change the filter.

klunkerbus Enthusiast

klunkerbus

Posted
Posted

On my 2004 Tahoe Z71, I've replaced a very dirty airfilter more than once when the indicator still showed green. I've grown to not trust my indicator and pull the filter for a look-see every once in a while.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted

They are completely worthless. And mine no longer has it since I installed the GMPP CAI and I chose to leave it behind. It's now sitting in my shed with the rest of the stock intake.

Zembonez Senior Enthusiast

Zembonez

Posted
Posted
They are completely worthless. And mine no longer has it since I installed the GMPP CAI and I chose to leave it behind. It's now sitting in my shed with the rest of the stock intake.

Most of the idiot-proofing that has been added to vehicles is totally worthless. Much like the rest of society we now have to cater to the dumbest of the dumb as IF they were somehow our equals... What a crock.

rogerf Enthusiast

rogerf

Posted
Posted
They are completely worthless. And mine no longer has it since I installed the GMPP CAI and I chose to leave it behind. It's now sitting in my shed with the rest of the stock intake.

Most of the idiot-proofing that has been added to vehicles is totally worthless. Much like the rest of society we now have to cater to the dumbest of the dumb as IF they were somehow our equals... What a crock.

 

Believe what you want but constriction gauges are proven technology on commercial vehicles. Somehow I can't see a relatively small gas engine pulling enough vacuum to set one into the red. It would take a brutally heavy load and a seriously plugged filter, probably bad enough to effect drivability.

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