mackncheese Posted September 22, 2016 Share Posted September 22, 2016 My 05 Granite CV 713's (1M2AG10C75M026820) factory gauges have been giving me problems. The main problem is the factory coolant temp gauge started reading low (I have a quality mech coolant temp gauge) and the electric fan would not come on. Took to dealer and the changed the probe and added a manual fan switch. All was well for a while. Know the coolant gauge intermittently reads 0 and the lightning bolt comes on and the jake won't work. Truck does not derate. Also the oil pressure goes to zero when you raise the rpms to 1600 from idle. Oil pressure never gets above 20lbs. Manual fan switch will turn off above 1800 Rpms. Can anyone point me in the right direction. Love the truck but this frustrating me. Thanks for your time. Quote Link to comment Share on other sites More sharing options...
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