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2005 c15 acert jakes not working properly...will work on low

 
HeavyEquipmentTech's Avatar
  • Answered by:HeavyEquipmentTech
  • Technician
  • Positive Feedback: 92.1 %
  • Accepted Answers: 487
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Customer Question

2005 c15 acert jakes not working properly...will work on low nothing in medium but kind of on high..have done some research and see that the outside heads work on medium and high and the middle works on low and all three on high...seems to me that the middle is all that is workin on high..so that tells me that the outside heads are not coming on. checked the connections and the switches all good. also checked the selonoids with an ohm meter and had continuity...im lost LOL any help would be good thanks

 

Optional Information:
Make: Cat
Model: c15 acert
Year: 2005

Already Tried:
checked wires and plugs and switches

Submitted: 248 days and 17 hours ago.
Category: Heavy Equipment
Value: $28
Status: CLOSED

Accepted Answer

Picture
Expert:  HeavyEquipmentTech replied 248 days and 17 hours ago.

Hi my name isXXXXX will try to help.... Using a small screw driver with your valve covers off and the enginge idling, push down on the plunger in the middle of each jake one by one. This is mechanically bypassing the electrict solenoid. I hope thid helps..... Let me know if you need further assistance....

Expert TypeTechnician
Category: Heavy Equipment
Pos. Feedback: 92.1 %
Accepts: 487
Answered: 8/9/2012

Experience: 1995 Wyo-tech graduate 17+years shop/field experience/on all major brands of heavy equipment and trucks.

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