When I accelerate my fan quits blowing.

Question edited for clarity.

That is a pretty funky fault. At first thought, it might be a bad connection due to G-Force and inertia, but where?? Then again, the Climate Control is operated by the Body Control Module and various sensors attached to it. You need the dealership or a good auto-electrician with a professional grade scan tool computer. They can do Live Data, Freeze Frame whilst that oddness is happening and tell you the reason why?

Are you sure its not a vac leak ?
The blower may be running, but if you loose vac when you open the throttle you may loose the ability to blow air out the vents.
There should be a storage tank to keep vac in the heater control system when engine vac drops.

i have same prob. friend of mine says blower is going bad. he told me to tap on it and see if it starts working,and that may buy little time befor it stops completely.don't know.car been down 4 bout 2 weeds so haven't gotten to try but ordered another blower just in case. pd. 25.00 from riteway. they ship all parts.800-365-8036. new & used parts. they do warranty.good service.never had a prob. with them.good luck

Usually a vac leak. I would check for a leak in the HVAC control system and the line thru the firewall to the engine.

Sounds to me like the A/C clutch is no good and out of adjustment.You should goto your nerrest junkyard and get a used assembly take the clutch off then you learn how it comes off and install it on yours the save the pump for later use if needed. The clutch should only have a .010 air gap after install between th inner elctro magnet and the clutch plate it's self.

Your blower fan is most likely failing. It sounds like it is rubbing on the cage, which causes the motor to heat up and quit functioning. Once the motor cools down it will operate again. You will need to replace the blower motor and fan assembly.

sounds like the resister for the fan is failing. it is located under the dash on the duct work for the blower (fan). you will see two wires going to it. unscrew the bolts or screws that hold it in and replace it with a new one. it should work fine after that.

check the oil level get alternator tested first or drive it till it dies . let me know result of alt test

Most likely it does, if you can hit the motor and it will run. I can't say for sure but you might want to chk. to see if you got a heater blower motor resister. There located (if its got one) around the heater motor and it controls blower speeds, might be worth checking out.

My fan stopped blowing too!! I was worried that my compressor had went out. The mechanic said that the blower had burned out and he charged me 169.00 for the part and 50.00 for labor.

I have a 2004 Pacifica with 58K miles.