I had similar symptom. Seems the door in the vent housing that selects recirculate or fresh air ( which is controlled by a vacuum valve ) broke. The pivot that controls the door movement snapped so the door falls down and blocks the incoming air flow thru the heater or air conditioner. End result very little air out of the vents. Pretty tough to repair the vent housing is against the firewall behind all the dashboard and the glov compartment. So you basicly have to remove the whole dash to get to the heater vent box.
That's if it is the same issue I had. Jeep told me was $1000 to repair.
A seat from a 1999-2004 Grand Cherokee is what fits in a 1999-2004 Grand Cherokee.
True
The 2004 Jeep Grand-Cherokee has 12 valves.
The 2004 Jeep Grand-Cherokee has overhead valves (OHV).
The 2004 Jeep Grand-Cherokee is a gas-powered vehicle.
The 2004 Jeep Grand-Cherokee has an inline 6 engine.
The 2004 Jeep Grand-Cherokee has a 4-speed automatic.
It is part of the pump module in the tank.
The maximum payload of the 2004 Jeep Grand-Cherokee is 1100 lbs..
The 2004 Jeep Grand-Cherokee is 15 ft. 1.3 in. (181.3 in.) long.
The 2004 Jeep Grand-Cherokee's turning circle is 37.4 ft..
The curb weight of the 2004 Jeep Grand-Cherokee is 3790 lbs..