Why are the vents on my Jeep not working?

Why are the vents on my Jeep not working?

This is typical of a vacuum leak or failure of the vacuum check valve. When you ascend the hill, you loose vacuum from the engine and the A/C vacuum controls loose suction so the vents can’t remain open. Most systems then default to defrost vents.

What to do if your Jeep Grand Cherokee heater is not working?

If the blower fan turns on and you don’t have any leaks under the dash of your Grand Cherokee, check the radiator’s coolant level and top it off if it is low. Blower Fan. The blower fan is responsible for moving the heat from the heater core to the vents. If it is not working then your heater settings will not work.

Is there a problem with my Jeep Grand Cherokee?

I own a 2004 Jeep Grand Cherokee, and I have had intermittent starting problems for the past several years. Every once in a while, I get in my car and it just doesn’t start.

How often does my Jeep Grand Cherokee not start?

I own a 2004 Jeep Grand Cherokee, and I have had intermittent starting problems for the past several years. Every once in a while, I get in my car and it just doesn’t start. It was very infrequent for 2-3 years, but recently it’s been happening a few times per month.

This is typical of a vacuum leak or failure of the vacuum check valve. When you ascend the hill, you loose vacuum from the engine and the A/C vacuum controls loose suction so the vents can’t remain open. Most systems then default to defrost vents.

Where is the air vent on a Jeep Grand Cherokee?

43 people found this helpful. there is a motor that controls the door its located on the driver side just above the floor vent this piece is 45 dollars at auto zone I suggest u take the silver rod off and move the white control up if that don’t work then u may professional help 25 people found this helpful.

Why does air only come out of my Jeep Grand Cherokee?

Check the vacuum lines to the door controls. These lines are routed directly to the engine manifold and the door fails to the defrost position on loss of vacuum. Maybe a line has come loose or a leak has developed in the line. 23 people found this helpful.

Where are the vacuum lines on a Jeep Grand Cherokee?

Agreed kingsnapple, check the vacuum lines first. Start by checking under the hood on the firewall, next to the heatercore/blower motor area. You’ll find a hose with a “T” on it. First, follow the one line that goes towards the battery. Check for holes rips and tears.