: Cabin Air Filter install....which direction is air flow to install filter correctly



jimtesla
03-13-2013, 10:43 AM
So cabin air filters require you to install the filter with the flow going with the directional arrow on the filter

there are no markings on the filter housing nor are there any responses on threads regarding installing the filter

so which direction should the filters arrow be placed in the holder......GM should have had this clearly marked as all my previous cars had an arrow showing airflow so you could line up the filter correctly

so i installed with arrow up...thinking the fan assembly is on the bottom....am i correct?

I purchased this filter from Amazon...other threads suggested another filter that is not available any more

ACDelco CF176 Cabin Air Filter it fits perfectly and was only 16.00 dollars

thanks

jim

Iamscoobydoo
03-13-2013, 10:48 AM
The flow goes UP. I had the same question and I turned on the fan and stuck my hand in where the filter goes to figure it out.

avatar77
03-13-2013, 03:17 PM
The flow goes UP. I had the same question and I turned on the fan and stuck my hand in where the filter goes to figure it out.

Every other thread on the air filter is filled with people stating to install the arrow pointing DOWN. This makes sense as the air is drawn in from the base of the windshield, through the filter and to the fan.

Examples:

http://gm-volt.com/forum/showthread.php?7485-HVAC-Cabin-Filter/page3

http://gm-volt.com/forum/archive/index.php/t-11174.html

jimtesla
03-13-2013, 10:13 PM
i read some of those articles and one guy said after three months he looked at the filter and it was clean......

does not seem right that it faces down with the flow going up..

maybe thats why its clean...put in the wrong direction....

jimtesla
03-13-2013, 10:16 PM
deleted my message double posted it