What should I do if my cat cooling fan is not working?
That should be the red one near or at the compressor. Try to unplug it and see if the fan stays released. The coolant temp sensor that is read by the ecm to control the fan also sends the data to your coolant temp gauge. If the gauge is reading normal the sensor and wiring should be fine. (The insulation needs to be fixed for sure!)
Why does my engine fan keep coming on when the a / C is off?
You could have a bad high press switch on the A/C. Thats the swtich that will turn the fan on when the A/C is on and say your not moving to get air flow. Unplug the swtich and put a jumper wire on it and if the fan stops you found your porblem. They can go bad and make the fan stay on even with the A/C off.
How often does the cat cooling fan cycle?
The fan cycles off and on about every 3 minutes. 3 on; 3 off. It does this all the time. Weather idling, road speeds, or A/C on or off. Engine temp never goes above 190*. Anyone have any ideas what is causing this?
How often does the engine fan stay on?
Discussion in ‘ Trucks [ Eighteen Wheelers ] ‘ started by tkilby, Jun 23, 2010 . 05’ Pete 379 with a Cat ACERT: The last few day’s the engine fan has been staying on 90 % of the time. The air solenoid on the firewall has no power and the manual rocker swich has power only on one side “the yellow/orange wire”.
Where can I find the Caterpillar CAT parts Manual?
CAT Parts Manual PDF – The CAT PDF parts manual has exploded views of all serviced parts on the equipment. It also gives you a guide, with numbers, for ordering genuine Cat® parts from Caterpillar.
Is there a charge for Freightliner 146 EGR?
There is no charge for this service, but standard message and data rates may apply. 146 is EGR from when I was talking with the Service manager in Fargo at Freightliner. When I go into the manual, that code is coming up as EGR, but I can’t find the 001
Why is my engine fan not coming on?
Discussion in ‘ Trucks [ Eighteen Wheelers ] ‘ started by US MARINE, Oct 6, 2012 . The fan will not engage . I replaced the following 1. Air cylonoid on the fire wall