Hi. I've read through several posts about the auxiliary cooling fan installs. I've got a 1997 Tahoe. Per the manual (screenshot attached) there was an optional cooling fan and it was wired with power on the B terminal of the plug and A went to ground. I've got the factory transmission cooler where the fan would typically go, so I installed the fan on the driver side. That doesn't really matter for the current issue though. I'm also using a relay to control the actual operation of the fan.
I bought the GM connector for the fan and wired power to B and ground to A as that was how I interpreted the manual. That results in power to the black wire of the fan and ground to the blue wire. I've attached a few pictures. In one, you can send the A and B labeling on the connector. My concern is that this results in the fan spinning counter clockwise and pull air through the condensor instead of pushing air. I think it should be pushing air since that would be in line with the engine fan and airflow in general when going down the road.
A couple of the articles I've read say power should be on the blue wire (which would be "pushing" mode), but that seems to go against the manual. I also saw this article where the guys has the fan wired with power to the black wire, the same way I currently do. This article also shows the P/N for the matching connector.
https://www.gmt400.com/threads/aux-cooling-fan-install.56464/
Should I ignore the service manual and flip power to the blue wire so the fan pushes air through the condensor?
I bought the GM connector for the fan and wired power to B and ground to A as that was how I interpreted the manual. That results in power to the black wire of the fan and ground to the blue wire. I've attached a few pictures. In one, you can send the A and B labeling on the connector. My concern is that this results in the fan spinning counter clockwise and pull air through the condensor instead of pushing air. I think it should be pushing air since that would be in line with the engine fan and airflow in general when going down the road.
A couple of the articles I've read say power should be on the blue wire (which would be "pushing" mode), but that seems to go against the manual. I also saw this article where the guys has the fan wired with power to the black wire, the same way I currently do. This article also shows the P/N for the matching connector.
https://www.gmt400.com/threads/aux-cooling-fan-install.56464/
Should I ignore the service manual and flip power to the blue wire so the fan pushes air through the condensor?
