2001 GMC Jimmy 4.3 > WHERE DOES THIS VACUUM LINE GO ??? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 10-27-2007, 06:49 PM
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2001 GMC Jimmy 4.3 > WHERE DOES THIS VACUUM LINE GO ???

Hi Guys,

While under the hood today, I found a Vacuum Line disconnected ???

The black rubber line is 7/32 in diameter and about 5 foot long. One end on the drivers side is plugged into a few vacuum lines then it runs back towards the firewall then across towards the passenger side then runs toward the overflow coolant reservoir and then just ends dangling in the air.
This rubber line has a plastic insert in the disconnected end suggesting it is there to attach to another hose ?

THIS LINE IS SUCKING AIR WHEN I STARTED THE ENGINE .

Awhile ago a body shop replaced the passenger side front quarter and I believe it was detached then .

IF THERE IS A VACUUM LINE EXPERT HERE WITH US, PLEASE HELP.

Thanks, Frank in Connecticut FFredericks2004@comcast.net

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Old 10-27-2007, 10:26 PM
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Sounds like the line to a pollution cannister. Plug the line with a screw or golf tee for now. Your best bet may be to go to a wrecking yard and look at a similar vehicle and get the parts the body shop left off.
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Old 10-28-2007, 06:14 AM
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Thanks, Jalopy45

Thanks for your response, I thought of going back to this dealer and asking but since they repaired it the dealership has changed hands.

I will plug the line for now, again , Thanks.
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Old 10-28-2007, 06:40 AM
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Hi,
Go back to the dealership & look under the
hood of a car like yours.
good luck,
rich
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Old 10-28-2007, 06:59 AM
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I own a 2000 chevy blazer S series and cannot find this hose. Is your jimmy an s series?
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Old 10-28-2007, 07:21 AM
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Hi Rich,

I will try it.... THANKS !!!!!

FRANK
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Old 10-28-2007, 07:59 AM
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if its a 4x4. perhaps it goes to the actuator under the battery.
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Old 10-28-2007, 08:04 AM
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It would help if you had access to a vacuum diagram from a factory service manual.... if you are going to keep the car and do work on it, that would be a good investment.

My guess would be either a pollution canister, a 4x4 actuator, or a vacuum reservoir for the 4x4 system. Look around for a plastic canister or ball shaped reservoir that has an outlet without a line on it.

I haven't looked at a GMC for a long time -- extrapolating from the Jeep.
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Old 10-28-2007, 08:56 AM
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Glad your Jeep is on the road !!!!!

Hi Pmeisel.

Thanks for reply...as soon as weather permits I will look around for canister,ect.
For now I plugged the vacuum line until I know more ?

THANKS, Frank
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