Vaccum pump

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Mar 27, 2026 | 09:45 AM

#1 (permalink)

richb55

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Joined: Nov 2019

Posts: 145

Likes: 25

From: Boston

Vaccum pump

My vaccum pump seems to run all the time draining the battery. Is it just old ?

Mar 27, 2026 | 10:54 AM

#2 (permalink)

ZERACER

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Joined: Nov 2006

Posts: 6,568

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From: Orange County CA.

Re: Vaccum pump

For the engine or for the door locks?

Mar 27, 2026 | 11:48 PM

#3 (permalink)

M60A3Driver

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Joined: May 2023

Posts: 2,973

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From: New Jersey

Re: Vaccum pump

Quote:

Originally Posted by richb55

My vaccum pump seems to run all the time draining the battery. Is it just old ?

Do you mean the central locking pump? The one that's located in the trunk on the left side?
Check to see if there was any water damage. Disconnect the wire harness and see if there is corrosion on the pins.

Mar 28, 2026 | 06:17 PM

#4 (permalink)

richb55

Thread Starter

Joined: Nov 2019

Posts: 145

Likes: 25

From: Boston

Re: Vaccum pump

Quote:

Originally Posted by ZERACER

For the engine or for the door locks?

I should have said air pump for locks , seems to run and kill battery. Any thoughts outside of replacement

Mar 29, 2026 | 01:24 AM

#5 (permalink)

M60A3Driver

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Joined: May 2023

Posts: 2,973

Likes: 1,564

From: New Jersey

Re: Vaccum pump

Quote:

Originally Posted by richb55

I should have said air pump for locks , seems to run and kill battery. Any thoughts outside of replacement

In the engine fuse box, try pulling fuses #25 and #26. See if the pump stops.

Mar 29, 2026 | 09:43 AM

#6 (permalink)

ZERACER

Senior Member

Joined: Nov 2006

Posts: 6,568

Likes: 755

From: Orange County CA.

Re: Vaccum pump

Do a search of Central Locking Pump in the upper L/H corner of thit sight and you will get all kinds of info. Do you have a roadster or coupe? Removing t for inspection is the first step.