Jump to content

Starting Problem


Recommended Posts

I have a Mack MB 400 1974 cab over model. The wiring is fairly simple, but even so I'm having trouble getting the thing started. I parked it 6 months ago, and when I did the motor on the two speed back axle burned out and everything on the instrument panel went dead. I didn't try to start it right away, and now, even though the battery and the alternator are fine, and the starter and solenoid are new, it isn't turning over. The first couple of times it chugged in a sluggish way and now it won't do anything. My feeling is that because everything on the dash won't work, and they are all, I assume, wired into the relay off the tumbler, that the relay is the problem. Does this sound right? Any advice would be helpful.

Link to comment
Share on other sites

I have a Mack MB 400 1974 cab over model. The wiring is fairly simple, but even so I'm having trouble getting the thing started. I parked it 6 months ago, and when I did the motor on the two speed back axle burned out and everything on the instrument panel went dead. I didn't try to start it right away, and now, even though the battery and the alternator are fine, and the starter and solenoid are new, it isn't turning over. The first couple of times it chugged in a sluggish way and now it won't do anything. My feeling is that because everything on the dash won't work, and they are all, I assume, wired into the relay off the tumbler, that the relay is the problem. Does this sound right? Any advice would be helpful.

A truck that old may have a series parell switch trace the wires from the batterys back look for a big round solnoid!

Link to comment
Share on other sites

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

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...