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97f150 new blend door motor, heat comes and goes, blower motor works good??

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  • 39 Answers

Assuming the fan speed is consistent, check your coolant level.. sounds like air is in there

Posted on Nov 14, 2014

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Posted on Jan 02, 2017

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SOURCE: no heat, blower motor works fine

heater core is probably no good

Posted on Jan 14, 2009

  • 75 Answers

SOURCE: blower motor does not work at any speed

as you said relay is good,try to check 4 connection of relay,pullout relay,check if there a 12 volts supply,, a 12 volt control by ignition sw.,connection to blower motor, the last connection is to the switch mostly connected to ground.

Posted on Feb 15, 2009

  • 436 Answers

SOURCE: How do you fix the driver side air blend door actuator?

you cannot repair the actuator you need to replace it with new one. These motors turn but get weak with time. if you test it, it works, put it in and it doesn't. this is because the motor is weak, unfortunately GM does not sell these motors separately.

Posted on Aug 23, 2009

  • 534 Answers

SOURCE: blower motor doesn't work and has no power to it

Check the blower multispeed control resistor pack is not faulty.
The resistor pack is usually located in the air ducting, in the blower fan airflow.
Basically, +12v power is supplied (via fuse) to the fan speed control switch, which then passes via the selected speed control resistor, to the fan motor. Often a interface relay is used to switch the blower motor high current.

Posted on Aug 31, 2009

gandergmm
  • 145 Answers

SOURCE: hvac blower not operating any speed,

have you tried replacing the blower resister module?

Posted on Oct 01, 2009

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Heater and ac sometimes won't work til i drive for awhile


Many of those type trucks have a fuel gauge issue...I don't think it is in relation to your heat and cool problem...I know people have had to change the complete fuel sending unit assembly to fix gauge...It wasn't cheap...Should have been a recall but it wasnt...However I don't have enough info for the heat/cool problem...Is the blower motor running all the time or does it not run until you drive for awhile..?..Some blower motors that go bad won't come on until they are jarred or tapped with a hammer...Maybe it is vibrated while driving and finally comes on...You have to listen closely to make sure if it comes on when you turn it on...If it always turns on when you flip the switch then it sounds that your HVAC blend vent doors are very slowly opening...This could mean the door actuators are wearing out or the plastic vent doors are contaminated at the hinge and slowly opening.......So check the blower motor operation first...If it don't blow until you drive the motor is going bad...First make sure all fuses have a good connection..sometimes they vibrate out...Also blower motor relays.If a blower motor relay is bad the blower will not come on at all....A faulty relay will not work the fan at all....If the blower motor comes on when it wants to it has to be a bad motor or improper connection....Sometimes a motor will operate but doesn't blow..This could mean the fan has torn loose from motor....Best way to troubleshoot blower motor is remove it,inspect fan connection...,hold it safely in your hand while an assistant turns it on.....Good luck..

Sep 04, 2014 | 2000 GMC New Sierra 1500

1 Answer

My heat/AC blower makes noise, but no air comes out. I can adjust the fan speed, bu still no air. I replaced the blend doors and they work correctly... now I can feel heat, but it won't blow. I still...


Most probablh a broken recirculation door hinge. When broken, the door will be laying on top of the blower motor and shut the air exit. Remove the blower motor and look up. If you see the door and csn fteely move it by hand, then that is the problem. Some people just secure it in up position eith some wire. Ofcourse recirc will not work anymore.

Oct 28, 2013 | 1999 Jeep Grand Cherokee

1 Answer

No heat


Your blend door at the blower motor is stuck in the closed position,most Dodges have this problem,your blower motor works,but no wind speed coming out.Click here to see.

Feb 03, 2013 | 2001 Dodge Grand Caravan

1 Answer

A little heat is coming out of the vents in my 2001 oldsmobile alero but its not blowing out


Could be a problem with the blower motor, or a blend door.
The blend doors direct air thru the heater core and out thru the vents.
Someone would need to remove the blower motor and check it.

Jan 15, 2013 | 2001 Oldsmobile Alero

1 Answer

No heat in a 1996 towncar


after checking coolant level,thermostat operation and if heater hoses feel hot(be careful not to burn your hand) the temperature blend door is probably at fault. It directs the air from the fan blower motor either across your heater core or A/C evaporator, giving you either hot or cold air. Most cases the dash has to come out to replace this $80 electronic motor. Good luck, Mr.P

Nov 06, 2012 | 1996 Lincoln Town Car

1 Answer

My fan does not come on and blow however the rear does


This is common you will need to check the front blower resistor, this is located under the dash on the passenger side on heater box next to blower motor. the wiring plug also needs to be looked at. the plug on some of these heats up and starts to burn and in turn the connector needs replacing and the resistor also.
If the connector is good then replace the resistor and that will solve the blower problem.As far as the rear unit not blowing hot air , make sure the coolant is full and if the coolant if full then you will need to take a look at the rear unit blend door. this is the door that opens and closes to control hot or cold air, if the coolant if full in radiator then blend motor may be bad, testing will need to be done to see if its the door or the motor that controls the door. good day

Apr 14, 2012 | 1999 Dodge Caravan

1 Answer

Hi my heater fan/blower, blows up on the window, but nothing els works, it heats up and i can hear the acc click on, but the blower only blows up?


This means that there is a problem with the heat/blend door. Try looking in the manual for a fuse it would be listed as blend door. Replace this fuse and you should be all set, in 99% of cases this is the problem but if this does not solve it then you might have to get a new motor for the blend door which can be expensive.

May 05, 2011 | 2001 Ford Escape

1 Answer

My is heat is not work?My car is blowing cold air instead of hot air, I have a brand new heater core,the thermostat is not sticking,I got anti-freeze in it,It's getting cold in I need heat.Please help me


first feel the heater core hoses see if both are hot if so then your problem is in the blend air door must be stuck on cold. is your blower motor blowing cold air if not your blower motor might be the problem. the blend air door is down by the blower motor.

Nov 17, 2010 | 1995 Oldsmobile Cutlass Supreme

2 Answers

Blend door for front temp control is stuck in the 'cold' position this winter. Is there a way to manually move and fix the door to get some heat?


you have to replace the blend (heat/cold) door motor, you can try to remove motor and turn door and try to jam something in door handle slot ,that the part that the motor turns,hope this helps.

Dec 26, 2009 | 2001 Ford Windstar

1 Answer

The driver side blower blows hot air, but the passenger side blows cold air.


common problem, you have a bad blend door motor, also be careful sometimes the blend door breaks at the end that goes into blend motor if is then blend door has to be replaced also w/motor hope this helps, ive done a lot of these, good luck.

Oct 13, 2009 | 2001 Jeep Grand Cherokee

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