Farm Equipment - 8000 Issues (Dr Allis)

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8000 Issues (Dr Allis)

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=171184
Printed Date: 10 Sep 2025 at 9:22am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 8000 Issues (Dr Allis)

Posted By: Unit3
Subject: 8000 Issues (Dr Allis)
Date Posted: 16 May 2020 at 11:06pm

The temp gauge needle went straight up and will not come down. I put on a new sending unit and still, it is at high noon. I also lost the rear work lights. Where is a good place to start checking for trouble.

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2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C

Replies:

Posted By: DrAllis
Date Posted: 17 May 2020 at 1:05am

If the fuel gauge works, I'd guess it is the temp gauge itself. Would have to test wiring on the backside of the gauge to verify. Lights could be fuse or breaker depending on tractors age. Use Owners manual to see which style it has.

Posted By: Michael V (NM)
Date Posted: 17 May 2020 at 9:33am

I'm no help for the temp gauge. Have you replaced the light switch? not sure if that would be your problem tho,,,

I had some kind lighting issues with my 8010, there is an updated light switch/turn signal..

other than that,, well,, get a test light and start looking...corroded, dirty connecters can cause problems, burned out bulbs??

Posted By: Boss Man
Date Posted: 17 May 2020 at 10:21am

Look behind the dash for pinched or melted wires causing a short

Posted By: Unit3
Date Posted: 17 May 2020 at 12:47pm

Thank you all. I HATE when the lights don't work.

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2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C

Posted By: Krazy Karl
Date Posted: 17 May 2020 at 8:04pm

If you unplug the temp sensor the gauge should peg one way then if you ground the wire it should peg the other way. Way to see if your gauge and wiring is ok. But if get nothing then have to figure out wire or gauge