Adding a manual fan switch??

[snailexpress]

(02-15-2017 )JMBT Wrote:  snailexpress, thanks for the reply, I read about this, but was told it would only work with a Volvo motor and with the cummins motor I had to go through the ECM?? Have you done this mod on a volvo truck with a cummins motor?

I did it on my 2009 Volvo I had. Cummins engine is under VECU control same as Volvo engine. No difference. Everything is going thru 1939