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[GMCnet] Re: Brake booster vacuum pump [message #364873 is a reply to message #364860] Mon, 21 June 2021 11:15 Go to previous messageGo to previous message
Emery Stora is currently offline  Emery Stora   United States
Messages: 959
Registered: January 2011
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Most vacuum pumps have a vacuum set switch either internally or an external switch. This switch can be set to turn off when the desired vacuum is reached.
As you go up in altitude the vacuum the he pump can achieve will be less. If you have the switch set too high the pump may not be able to achieve the vacuum and it will run forever.

Emery Stora
emerystora@mac.com



> On Jun 20, 2021, at 5:13 PM, 78gmcroyale wrote:
>
> I plan to remove it tomorrow and try to figure out if it can be fixed.Sent from my U.S.Cellular© Smartphone
> -------- Original message --------From: "John R. Lebetski" Date: 6/20/21 5:59 PM (GMT-06:00) To: gmclist@list.gmcnet.org Subject: [GMCnet] Re: Brake booster vacuum pump Sounds like pump working “too good”. Can you just unstick or replace switch? Maybe McMaster, Granger or such? -- John LebetskiWoodstock, IL77 Eleganza II_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:
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