i had the same problem in my 96 jeep Cherokee check to see if your auxilary fan is shot if you are undable to tell just simply unplug the fan and give it a shot this solved my problem
Check the driver side of the intake for a loose vacuum line.
A broken blend air door is the most likely cause on a Jeep Grand Cherokee.
A temperature sensor riding on the fuser roller changes resistance affecting current flow from engine control board, through sensor, back to engine control board. Debre buildup under sensor and degredation of sensor will affect normal operation. Thermal fuse only protects from possible fire starting; heating lamp/ceramic strip most always blows first. Over heating usually due to engine control board but in LJ III was due to AC power module stuck, supplying continuous 24 Volts DC to turn on lamp; this lamp always has 120VAC incase you don't unplug printer first.... If fuser heats without blowing... clean sensor within fuser assy with que tip and alcohol or replace fuser if paper being overheated first; then engine control board second.
The Trumpet Blows was created on 1934-04-14.
When the Wind Blows - song - was created in 1986-06.
You.
You may or may not loose control and have a wreck. If you do not panic you will be ok.
A car heater taps off engine heat. If you aren't driving, then the engine is cold and there's no heat for the car heater to use.
The engine blows. Usually pistons shoot into the engine. In most cases the engine will have to be replaced.
Check the driver side of the intake for a loose vacuum line.
I would look for a Vacuum leak possibly under hood. Does your Cruise control work?
Only blows cold air with the a/c on while driving, your cooling fan or fan clutch is bad depending on the year, make and model.......... Only blows cold air with the heater on while driving, you will have a bad or broken internal a/c - heater control door.....
Not good. Sounds like engine damage or timing chain broke or jumped a tooth??? I am no expert here. Good luck.
Check and make sure that the inside control are working first and then check the system for a vacuum leak....
sounds like you need to replace either the thermostat or the temp control switch
control fuse blows when you plug thermostat to base controlling a gas pack unit
The engine running will cause air to come out of a running engine. The Internal combustion engine sucks in air, mixes it with fuel, ignites it, and then blows the resulting gasses out. Also the fan in front of the radiator moves alot of air. So unless you are coasting down a hill with the engine off, it's supposed to be blowing air while you are driving.