lirettesdiesel@msn.com Posted April 3, 2015 Share Posted April 3, 2015 My can clutch on my CV713 2006 stays on. I replaced the air solenoid valve, still not working. I should have checked the plug before buying a switch because I have 12volts getting to the solenoid but no ground. The ground comes from the ecm whenever called for fan off. Any suggestions. Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/ Share on other sites More sharing options...
wheeler73 Posted April 3, 2015 Share Posted April 3, 2015 Could be a high pressure fan switch for the A/C stuck on. Is the malfunction light on? Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-285104 Share on other sites More sharing options...
wheeler73 Posted April 3, 2015 Share Posted April 3, 2015 Could be a high pressure fan switch for the A/C stuck on. Is the malfunction light on? Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-285106 Share on other sites More sharing options...
Devilsnight Posted April 12, 2015 Share Posted April 12, 2015 Probly have this sorted out by now but could be the coolant temp sensor or the wiring to it. Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-286423 Share on other sites More sharing options...
IH Farms 2 Posted April 19, 2015 Share Posted April 19, 2015 The clutch could be stuck had it happen a lot in 07 international with an isx Cummins on those they should spin by hamd if key is off. I assume mack is the same may want to check if you haven't already figured it out Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-287151 Share on other sites More sharing options...
tjc transport Posted May 1, 2015 Share Posted May 1, 2015 i am having the same issues currently with a 05 CV-713, E7-427 engine.if the temp sensor tells the computer the engine is running hot, will it shut the AC off?i have disconnected the AC high pressure switch and the fan is still locked up.but if i suppy a ground to the air switch negative side wire, the fan will shut off. Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-288466 Share on other sites More sharing options...
Dieselwrenches Posted August 2, 2015 Share Posted August 2, 2015 If you can check air manifold temp sensor. If it's faulty it reading incorrectly it will tell ecm to keep fan on as a precaution. Quote Link to comment https://www.bigmacktrucks.com/topic/39537-fan-clutch/#findComment-298737 Share on other sites More sharing options...
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