Vacuume motor

Tiny
JKLOOS
  • MEMBER
  • 1980 CHEVROLET LUV
  • 53,000 MILES
Have a good qustion for you my hanes manual doesnt seem to cover in plain English

regarding vacuum motors

do you know is it supposed to hold vacuum or slowly release vacuum.
ours is slowly releasing vacuum and not sure if its defective or is it supposed to do that
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Sunday, August 14th, 2011 AT 3:48 AM

10 Replies

Tiny
JKLOOS
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Here is the part I am calling a vacuum motor unless it is something else
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Sunday, August 14th, 2011 AT 3:51 AM
Tiny
DANLESABRE
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What is the problem you are trying to diagnose?
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Sunday, August 14th, 2011 AT 7:02 AM
Tiny
JKLOOS
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I need to know if the unit is supposed to hold vacuum or slowly release vacuum. If it is supposed to slowly release vacuum ours is fine, if its not and its supposed to hold vacuum then I need to replace this unit
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Sunday, August 14th, 2011 AT 7:13 PM
Tiny
JKLOOS
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I found out ours is fine :)
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Sunday, August 14th, 2011 AT 7:29 PM
Tiny
CJ MEDEVAC
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THAT "THINGEE" SHOULD KEEP THE DOOR OPEN, AFTER THE ENGINE IS WARMED UP

IT SHOULD BE CLOSED, WHEN THE VACUUM CRAP, ON DOWN IT'S VACUUM LINE IS TELLING IT TO DRAW HOT AIR OFF OF THE ENGINE. BECAUSE CONDITIONS ARE COLD!

REALLY A BIT MORE COMPLICATED, IF YOU RECITE THE BOOK

HOW WAS MY SIMPLIFIED COUNTRY BOY ANSWER?

THE MEDIC
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Sunday, August 14th, 2011 AT 7:39 PM
Tiny
JKLOOS
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More lost than ever, not your fault. I am blond. Thanks anyways ;)
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Sunday, August 14th, 2011 AT 11:54 PM
Tiny
CJ MEDEVAC
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PULL THE HOSE OFF OF THE END OF THE METAL "SNOUT"--LOOK OR WITH A MIRROR AND FLASH LIGHT---OBSERVE DOWN INSIDE THE SNOUT, JUST UNDER THE "THINGEE". COLD/ RUNNING/ WARMED UP.

WATCH THE DOOR EITHER, LET IN AIR FROM THE HOSE YOU REMOVED (FRESH, OUTSIDE AIR, OR ALLOW IT TO ENTER THE HOSE, ON THE BOTTOM, FROM THE ENGINE (HEATED AIR)

MAKE SENSE NOW?

THE MEDIC
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Monday, August 15th, 2011 AT 2:07 AM
Tiny
JKLOOS
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  • 6 POSTS
We tested with a vacuum pressure gauge. With it hooked up it reads 0 if we unhook it and test, the vacuum meter read 14 inches steady on idle.
I understand it is called a vacuum motor however there are no images of one to google and no parts called that. Could it be called by any other names? I am in california and it would be required for ca. Standard emissions. Its hard to believe its not an available part unless I am searching the wrong term (chevy luv vacuum motor) the diaphragm inside the unit must be faulty as vacuum leaks right through it.
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Monday, August 15th, 2011 AT 4:07 AM
Tiny
CJ MEDEVAC
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SORTA WHERE ARE YOU PLUGGING YOUR GAUGE IN, IN BOTH TESTS?

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Monday, August 15th, 2011 AT 4:22 AM
Tiny
CJ MEDEVAC
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THE ON-LINE MANUAL AVAILABLE TO ME, DOES NOT GO BACK TO YOUR YEAR.

I WOULD SLING YOU A VACUUM DIAGRAM

I MAY BE ABLE TO GET A DIAGRAM WITH THE SAME KINDA SYSTEM, JUST NOT SPECIFIC TO YOUR MAKE OR MODEL

I AM SENDING YOU A MESSAGE--HOME>YOUR USER NAME>LOOK TO THE LEFT FOR MESSAGES

THE MEDIC
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Monday, August 15th, 2011 AT 4:59 AM

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