Jump to content
CaddyInfo Cadillac Forum

Faulty Fuel Level Sensor-2000 Deville


Recommended Posts

Gentlemen,

I've encountered a problem with a faulty fuel gauge on my 2000 Deville,

VIN # 1 G 6 K D 5 4 Y 5 Y U 2 4 1 0 0 5 .

One minute the fuel gauge reads full, a few mile later it reads 1/4 full! I've been filling the tank every

250 miles to be safe until I can get the problem diagnosed.

Questions:

Is there a way I can diagnose what parts are bad that doesn't require special test meters or tools?

Is the fuel level sensor part of the fuel pump, located below the spare tire?

Do I need to replace the entire fuel pump?

Thanks for any advice offered.

Steve M. im MD

Link to comment
Share on other sites


Before I bought any parts, I would check for a wiring problem in the harness where it connects to the fuel tank assemblies.

CTS-V_LateralGs_6-2018_tiny.jpg
-- Click Here for CaddyInfo page on "How To" Read Your OBD Codes
-- Click Here for my personal page to download my OBD code list as an Excel file, plus other Cadillac data
-- See my CaddyInfo car blogs: 2011 CTS-V, 1997 ETC
Yes, I was Jims_97_ETC before I changed cars.

Link to comment
Share on other sites

  • 1 month later...

Yes I have not been able to get just the sending unit for the fuel gauge you have to by the entire pump assembly I have done 4 of them so far as I am a mechanic for a used car dealer in CT.

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.
Note: Your post will require moderator approval before it will be visible.

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.

  • Recently Browsing   0 members

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