Question about 1996 Jeep Grand Cherokee

2 Answers

Vacuum reservoir thanks for your reply this stuff i already suspescted I have checked all the lights i suspect the battery drain is comming from the light under the bonnet, maybe the microswitch is faulty. As for the vacuum reservoir could you please tell me how I check this and where it is located. Once again thank you for your assistance. Kind regards Kim Nelson

Posted by on

  • fopp Nov 04, 2008

    Sorry emissionwiz I didnt mean to offend but I was refering to the vacuum reservior for the climate control system in regards to the A/C not the brake booster although your answer would be appropriate for brake boosting problems

    Regards Fopp



2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 44 Answers

The vacuum reservoir may be in the passenger side front fender hidden under the fender well, you may have to get under the front and take a cover off to see it. I think it is beside the Evaporator Canister.

Posted on Nov 02, 2008

  • Don Minor
    Don Minor Nov 10, 2008

    I didn't mean to offend but I was referring to the vacuum reservoir for the climate control system in regards to the A/C not the brake booster.

    I was referring to vacuum reservoir for the climate control system a lot of manufactures have been hidden it in front of the front wheel behind a cover. You usually have to get on the ground to remove this cover so you can see the reservior.


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Jeep Master
  • 77,499 Answers

It is located to the rear of the brake master cylinder under the hood (bonnet), to check and see if it leaks start the engine, put your foot on the brake pedal, turn the engine off, you should get at least three pumps on the pedal before it gets very hard to push, also listen for a vacuum leak, a noise like sucking air through pursed lips. OK got it?

Posted on Nov 02, 2008

  • yadayada
    yadayada Nov 03, 2008

    Thanks for using FixYa!



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Battery keeps going flat

Check alternator voltage output, might be low. obd2 scanner

Jun 12, 2013 | Cars & Trucks

1 Answer

Give truck gas takes the air coming out of the vents and throws it out of the defrost

Sound like the check valve in the vacuum reservoir has gone bad. The reservoir is located under the plastic cowl that is under the wipers. If the check valve has gone bad you have two options. 1. You can replace the vacuum reservoir. 2. You can pick up a check valve at your local parts store and install it in between the vacuum supply hose and the vacuum reservoir. Let me know if you have any questions and I'll do my best to answer them. Thank you for using!

Jan 26, 2012 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

My car is a 2002 Volkswagen Gold 2.0...i m having a problem with my coolant,it always says check coolant. i sent it for fixing then it comes ok for a night,then early in the morning the problem came back...

Look at your coolant reservoir tank does it look dirty inside it. If it does which I suspect your sensor near the bottom of the tank is what sends a signal to your coolant light. You can drain and clean the reservoir and sensor or the same but buying a new sensor if the same problem persists

Feb 02, 2011 | 2002 Volkswagen Golf

1 Answer

My 2000 ford f150 4.6L 4x4 will only go into 2nd gear!! how come??

Is the system ESOF ( Electronic Shift On the Fly ) or MSOF ( Mechanical Shift On the Fly ) ?

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

I would suspect you will find the front drive shaft does not turn, and the issue is with the vacuum shift motor, the vacuum lines to it or the solenoids that operate it ( could be the vacuum reservoir, small chance ).

The vacuum disconnect motor is on the front axle, item #10 in the picture below :

Picture of it

The 2 vacuum lines to it change between 2WD and 4WD operation. You should have vacuum on the pink vacuum line when in 2WD mode and the light blue vacuum line when in 4WD operation.

If a test with a vacuum gauge does not show vacuum, chances are the vacuum line is cracked.
It is this simple.

If you do not have vacuum on either line, it could be the fuse to the solenoids is blown ( power is always at the solenoids, ground is operated by the GEM - Generic Electronics Module ) or it could be the vacuum reservoir behind the battery is cracked adn causing a vacuum leak.

Start with checking the fuse for the system, and verify if the front drive shaft engages and go from there.

Dec 22, 2010 | 2000 Ford F150 Flareside SuperCab

1 Answer

4 wheel drive system not operating, have already repaced drive motor on transfer case, still not working

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Engine on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

IF the front dive shaft does not turn, check that the vacuum shift motor on the front axle is operating.

Item #10 in the diagram below.

The vacuum shift motor is vacuum operated ( name says that, I know ) the pink vacuum line is 2WD operation, the Light Blue vacuum line is 4WD operation.
If the motor does not move, you can check the vacuum lines to the vacuum solenoids on the firewall

The other is the vacuum reservoir behind the battery

Oct 18, 2010 | 1997 Ford F150 Regular Cab

1 Answer

Fan will stay on and drain the battery

Very likely that the fan relay has failed...the internal contacts sometimes can "weld" themselves in the closed (on) position and keep the fan running even when the signal that makes them close has stopped. If the relay isn't in the power distribution center, check below and behind the right front headlight near the vacuum reservoir, it should be there.

May 15, 2010 | 2000 Jeep Grand Cherokee

1 Answer

2005 ford expedition air conditioning

You have a vacuum leak in the engine compartment mst likely. Check the vacuum line from the engine to the firewall and into the vehcile under the dash.
Also check the vacuum storage canister that stores vacuum for the heater controls when you step on the gas. You can just disconnect the hose to the reservoir and plug it temporarily to see if the system workd ok.

Vacuum Reservoir Removal and Installation
  1. Remove the battery and battery tray. For additional information, refer to Section 414-01 .
  1. Disconnect the vacuum hose and remove the vacuum reservoir.
  1. To install, reverse the removal procedure.


Jan 11, 2009 | 2004 Ford Expedition

2 Answers

Pajero 1993 3 door 2.8 turbo


Oct 03, 2008 | 1995 Mitsubishi Montero

1 Answer

LOW COOLENT light stays on

The sensor is at the top of the rad next to the battery on the right side: easy to see but not so easy to reach. The sensor may not be defective, but dirty. If the coolant is dirty, it will coat the sensor and cause false readings. To check, unplug the sensor and check to see if the light goes out (allow 15 seconds or so). If it does, then remove and clean the copper probe of the sensor with a scratchy pad and reinstall. If the light comes back on, then replace the sensor. If the light stays off, flush your cooling system and replace with the green stuff: the pink Dexcool is evil.

Sep 01, 2008 | 2000 Buick Century

Not finding what you are looking for?
1996 Jeep Grand Cherokee Logo

403 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides