jmp6889928 Posted January 2, 2015 Share Posted January 2, 2015 Hi again everyone, Checked the fan relays and all is good. I remove the #1 relay and the fans quit, so I know that the relay is passing current. I switched out several other relays to make sure and all works. Temperature sensor on the cross pipe? My guess is that it would be the multiple wire sensor that feeds the ECM? Thanks guys. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted January 2, 2015 Share Posted January 2, 2015 Are they constant on, or on/off/on every couple seconds? The first could be temp sensor bad/unplugged or a bad connection at the large plug on the bellhousing or bad sensor ground on the manifold. The second would be because the green test mode plugs under the dash are connected. Quote Link to comment Share on other sites More sharing options...
jmp6889928 Posted January 3, 2015 Author Share Posted January 3, 2015 Run constantly when engine is running. Quote Link to comment Share on other sites More sharing options...
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