Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-09-2002, 11:24 AM
Registered User
 
Join Date: Oct 2000
Location: Jacksonvill, FL, USA
Posts: 125
Reserve Light

This is for a 1980 300SD, 116 body.

The resreve light on the fuel guage stays on all the time. I removed to fuel tank sending unit and cleaned it and I removed the insturment cluster and examined it and checked all of the contacts.

Does anyone have anything else to try. Is there a separate sending unit for the reserve guage?

Thanks,

Tref
Reply With Quote
  #2  
Old 06-10-2002, 08:20 AM
Registered User
 
Join Date: Oct 2000
Location: Jacksonvill, FL, USA
Posts: 125
CHECK!!!!
Reply With Quote
  #3  
Old 06-10-2002, 05:16 PM
Registered User
 
Join Date: Oct 2000
Location: Jacksonvill, FL, USA
Posts: 125
No body has any ideas on this.

I did find out there is only one fuel sending unit.

Is there any way I could have missed something in cleaning the sending unit? It was not completely clean, but the contact points were clean. I was a little afraid to get too aggressive with it. I have broken the wires on others I have tried.
Reply With Quote
  #4  
Old 06-10-2002, 11:24 PM
Registered Diesel Burner
 
Join Date: Aug 2001
Location: Northern Virginia
Posts: 2,911
This is one of those problems that you might need to use a "divide-and-conquer" approach to resolve.

Divide the problem by determining whether its the fuel sending unit or the wiring and indicator light. You'd have to have a diagram of the circuit to do this properly.

But it would be something along the line of determining if the light stays on all the time even with the fuel sending unit disconnected. What I'm saying is that the fuel sending unit may be OK, but the wiring shorted somehow.

Hope this helps.

Ken300D
Reply With Quote
  #5  
Old 06-11-2002, 08:12 AM
Registered User
 
Join Date: Oct 2000
Location: Jacksonvill, FL, USA
Posts: 125
OK, Thanks,

I do have a wiring diagram and it is a very simple circuit. I will try just diconnecting the sending unit and see if that makes any difference.

I will let you know.
Reply With Quote
  #6  
Old 06-12-2002, 08:56 AM
Registered User
 
Join Date: Oct 2000
Location: Jacksonvill, FL, USA
Posts: 125
OK, I removed the connection to the fuel sending unit and the light went out. I removed the sending unit and cleaned it thoroughly. And inspected it. I could not see anything wrong. I reinstalled it and checked the light. It was still on, if anything it seemed brighter.

Obviously it is the sending unit. Does anyone have any suggestions about what to check next?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:33 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page