[W126 Coupe] Broken Fuel Tank Sender Unit?

[Dick Spellman]

Hi Calvin:

You do not mention any other strange behaviors but, just for chagrins, 
check the over-voltage protection relay, the output on the alternator 
(at the battery terminals with engine running) and confirm it's not some 
other broader problem first.  Don't know what should appear on the 
3-wire plug or the 3-wire fitting on the sender unit.  I'll check maybe 
tomorrow where I have the insides of a 126 apart just now.

Regards,

Dick

Calvin Young wrote:

>My fuel gage went crazy, swinging wildly back and forth, low fuel light
>coming on intermittently before it died altogether.  I suspect the fuel tank
>sender unit.  
>
>Can anyone tell me how to check this out (voltage meter on the wires?) or
>could there be another cause.
>
>I appreciate the response on the AC and plan to continue working that issue,
>but I need to get this fixed first for obvious reasons.
>
>Cal
>
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