Question about 1998 Pontiac Grand Prix

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Heater and ac blower doesn't work vents heat and cool air but blower doesn't work

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Or the resister

Posted on Oct 14, 2009

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Change the blower motor

Posted on Oct 05, 2009

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1977 Buick blower / fan comes on however NO heat blower / fan also blows very low.


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Jan 30, 2016 | 1977 Buick Electra

2 Answers

Ac only blows on 1 or 4


Is it just the AC or does the heater and vent also only blow on 1 and 4? If it does happen in all modes then the blower resistor pack is more than likely bad.

Sep 01, 2015 | AC Cars & Trucks

1 Answer

2008 Jeep Liberty-My heater was barely warm-blowing fine tho. Was told I had a plugged heater core and needed a new one. Had a new heater core put in and then my air conditioner stopped blowing cold air....


I woild be checking the vent controls as if the ac is working and the core was blocked then the air would be cool when the heat was selected but not changing Fixing the heater has resulted in a /c not being good enough to cool the air if the vent is not properly selecting. The point is that if the vent selection is not working properly (vacuum hoses) then the 2 faults will be related.

Oct 24, 2013 | Jeep Liberty Cars & Trucks

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Air doesn't blow out of heater/ac vents


There is a possibility that the fan may have came off The motor shaft/spindle which has to rotate to blow the air to the vents

Oct 16, 2012 | 1995 Honda Accord

1 Answer

Peugot 407 heater not working


You more than likely have a problem with the temperature control blend door inside the air ducting, this door sits between the heater core and the AC evaporator core and mixes the air for the desired temp at the registers/vents. More than likely it is sticking due to being warped from heat. To replace this door and its actuator requires the dash be removed from the car.

Feb 08, 2012 | Cars & Trucks

3 Answers

My heater is not working in my 2001 honda civic. Is it my thermostat?


Does the heater blow cold air from the vents or do you mean the there is no airflow from the vents? cold air from the dash vents when the heater control valve is set fully hot could be an air pocket in the cooling system. The radiator sits slightly lower than the engine causing air pockets to get trapped in the engine when you replace the coolant. you'll have to purge the cooling system to restore flow to the heater core. No airflow (blower motor inop) this could be a bad blower motor transistor. pin test the blower motor circuit.

Jan 06, 2010 | 2001 Honda Civic

1 Answer

1998 FORD EXPEDITION AC/HEATER BLOWER


This problem is caused my the blend door actuator motor, the electric motor turns to allow the flap to open either to cool or heat and then through the vents. The problem has been either the motor is going bad or the actual motor stops working. There are small plastic gears that strip in the motor causing this. I have replaced several in the rear unit. The front one is under the dash next to the heater core. The dashboard must be removed. It is a big job.
Please rate me and let me know if this helped.

Feb 11, 2009 | 1998 Ford Expedition

1 Answer

1998 FORD EXPEDITION AC/HEATER BLOWER


Common issue. Your air ducts were not reassembled properly and so the blower fan is working but the air is going out wherever the air duct is improperly fitted. Also the fan gate ( a metal gate that is used to block off any heat entering the system when you have the a/c on may be stuck in the close position. Whatever the case it can be repaired by getting in the sysem under the passenger side of the underside of the dash. You may want a professional mechanic to perform thid because it is a bit of a job to access all of the items needed. Hope this helps!!!

Feb 11, 2009 | 1999 Ford Expedition

2 Answers

Very little heat from heater


the selector flap is not moving all the way to cold or hot position. Under the dashboard on the passenger side is a heat/ac box where all the duct work for the vents originates from. inside that box is the radiator for the heater and the cooling coil for the ac. the selector flap between them is stuck or not moving all the way.

Dec 29, 2008 | 1999 Ford Taurus

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