• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. S

    Case 1840 with Cummins 4-390 - Lots of coolant in oil, but zero oil in coolant

    Well I lost about 6 quarts of coolant into the oil system in a matter of 5-10 minutes of running, but I don't have any trace of oil in my coolant. I have removed the oil cooler and am going to pressure test it, and I also removed one of the valve covers and noticed some traces of coolant there...
  2. S

    Need a gut check before replacing ECM - CAT 277B (Aux Hydraulics not working)

    I picked up a new to me CAT 277B with only 1,300 hours on it, but unfortunately aux hydraulics and 2-speed are not working. I’ve chased the aux hydraulic problem, and have found the following: Proportional switch is functional when testing duty cycle at ECM input, Pin # 53. Range from 50%...
  3. S

    289D Only starts with Starting Fluid but then runs great-ish

    I'm stumped. I have a 2014 289D with 3,300 hours on it. It will only very rarely start on its own without starting fluid, and that's after trying for several minutes. More often than not she just won't start without a squirt of ether. It will crank until the starter motor 'grinds' and then I...
Top