Author Topic: Just before start up...  (Read 3246 times)

Robert_F

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Just before start up...
« on: March 21, 2008, 13:38:56 »
I'm still very new at this.... When I put the key in the ignition switch turn it and prepare to start my car just before I engage the starter and turn the engine over I'm hearing something that might be a pump running or electric motor of some sort that I'm guessing is under the hood and is activated by my putting the key in and turning it. I should say my car starts and runs very well so there is nothing wrong I'm just trying to put my finger on what that sound is, possibly a fuel delivery pump of some sort? Would anyone be able to help me understand what is being activated and what it is doing?  Thanks!

Robert

Richard Madison

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Re: Just before start up...
« Reply #1 on: March 21, 2008, 13:44:53 »
The electric fuel pump is under the car not far from the front of the left rear tire. The pump starts and makes a clicking sound when the key is turned.

Some of us give the pump a few seconds to click away before we turn the key to the final position to start the engine.

Richard M
1969 280 SL, Tunis Beige, Euro Model (Italy).

jsaylor

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Re: Just before start up...
« Reply #2 on: March 21, 2008, 14:22:37 »
Robert,

The fuel pump activates in the last key position before starter.  I let mine run for a few seconds before ignition to prime system.

Aloha,

Jim Saylor
Kauai, Hawaii
'65 230SL