Question about 1995 Jeep Grand Cherokee

1 Answer

Does not blow hot air (heat)

I have a 1995 jeep grand cherokee laredo that will not blow hot air (heat) even with the ac switch set to off and dial turned all the way to max heat position. I have traced it some and under the hood going into the firewall there are 2 heater hoses about 1/2" in diam. 1 is hot and the other (the return, I think) stays cold and it appears that no flow is going through to the return hose. I think there must be a solenoid switch somewhere that is not turning on to allow the flow to go through the heater core. How do I find this switch and how do I t/s this further? Thanks for any help and info.

KBB

Posted by on

  • kbb Jan 16, 2009

    what about the solenoid switch?

  • kbb Jan 16, 2009

    Please explain what you mean by trim level:
    Comment posted on Jan 16, 2009
    If your blower & thermostat controls are lever operated, the gate opens manually via the levers. If you have vacuum switches, it will open with suction. A solenoid will only be in use if you have an electronic thermostat control panel.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 15,935 Answers

The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.

To attempt to clean the core, you must flush the system multiple times. If this does not work, the core cannot be cleaned and must be replaced.

Posted on Jan 16, 2009

  • blueextc3221
    blueextc3221 Jan 16, 2009

    If your blower & thermostat controls are lever operated, the gate opens manually via the levers. If you have vacuum switches, it will open with suction. A solenoid will only be in use if you have an electronic thermostat control panel.

    Depending on the trim level of your Jeep - will determine the type of controller you have.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Air conditioning blows cool then blows hot what could be wrong in my jeep grand cherokee larado 1995


Is the compressor working when the ac starts blowing hot ?
Is the radiator fan working ?

Aug 05, 2012 | 1995 Jeep Grand Cherokee

1 Answer

94 jeep grand cherokee laredo 5.2. Only blows cool air no matter what setting you have it on.


check water level in radiator- can be low enough for no heat but engine still not overheat

Sep 15, 2011 | 1995 Jeep Grand Cherokee

1 Answer

I have a '93 Jeep Grand Cherokee Laredo.(4.0 straight six) when i turn on the heat even AFTER the vehicle has warmed up it blows like it works but no hot air. and when i turn the A/C on it blows but...


I had the same problem. It turned out to be the vacuum system that works the controls. the small vacuum lines under the hood dry out and crack causing the vacuum to be lost. also check the vacuum storage canister for cracks or loose hoses. If that does not work it may be the heater/ac control is needing to be replaced.

May 20, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

I have a 2001 jeep grand cherokee laredo the problem i have is when i cut my heat on it blows out of all vents but it is not very hot. the temp gauge is reading between 195 and 210. i felt the heater hoses...


Check that the Heater / AC Door Actuator Motor is actually functioning by selecting heat to vent and listen.

Make sure you have vacuum to your climate controls by selecting various air vents (upper/lower/face)

If the return heater hose is not warm also - then your heater core might be plugged up. A replacement heater core runs between $83 and $153 at NAPA depending on their mood when you price it. It is kind of a pain to replace you might want to have a shop do it.

Oct 03, 2010 | 2001 Jeep Grand Cherokee

1 Answer

'98 Jeep Grand Cherokee - My Heat/AC worked intermittently for a few days and now blows only heat. Changing the Heat/AC settings doesn't change the temperature at all. It blows very hot. AC is still...


The control for the AC/Heater door isn't working. To have AC the door has to close so that the hot air is not being blown into the car. When this door is closed it allows the cool air to pass through. This is either controled by vacuum or a ele. switch

Oct 01, 2009 | 1998 Jeep Grand Cherokee

1 Answer

2006 Jeep Grand Cherokee Laredo ac not cooling


My 1999 limited does this. When i bought it off the guy he said that its because of some flap down by the passengers left foot. In mine the passenger air barely even blows because of this.

Jun 17, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Heater does not blow hot air


Heater core is gone Kaput,all plugged up,,you will need to replace it.

Jan 16, 2009 | 1995 Jeep Grand Cherokee

Not finding what you are looking for?
1995 Jeep Grand Cherokee Logo

524 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

61168 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...