Starter solenoid

[red41neck]

My 2001 F250 7.3 now has 219,000 miles. 2nd starter, never any engine work needed, runs great.
I have noticed over the years that when starting it cranks a little longer to start. Could it be the
starter relay { on the fender near the battery } not making the same contact as new? Do they
get carbon arch build up and not send full voltage to the starter?

 

[79jasper]

Yes, but that solenoid doesn't carry the current. The big wire to the starter does.
There's also a solenoid on the starter.
Clean ALL connections to shiny.

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