Jump to content

1999 Mack E7 350HP, Jake Brake issues

whskypete

By whskypete
in Engine and Transmission

 Share

Recommended Posts

Vmac3 Rising Star

Vmac3

Posted
Posted
On 8/21/2022 at 9:18 PM, Quanbigrig said:

A guy that know the trucks did the adjustment ,he been working on it since 06 and did the last adjustment a couple years ago .He said I should get new solenoid but I don’t keep spending money if it’s not going to fix the problem 

Its going to be money and time with my experience. If the checks that Joey suggested don't have an answer then you will need to invest some time and money. Disconnect the power leads to the jake heads and supply a fused switched 12V to each head. Drive the truck and get it hot. Apply your switch and see if they work. If they dont then you may have an oil pressure problem, a hardware problem or both. If they do then it may be an electrical issue.

V

  • Like 1
  • Like 1

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

BigMackTrucks.com

BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.

Our Vendors and Advertisers

Thank you for your support!

Mack Related Links

Popular links

BMT Forum Logo

HTML tutorial
×
×
  • Create New...