Question about 2003 Jeep Grand Cherokee

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2003 Grand Cherokee has no heat and not very good ac

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

MrScary66613
  • 1990 Answers

SOURCE: 1999 Jeep Grand Cherokee Heat not working

Change your Thermostat.

Posted on Jan 17, 2009

  • 718 Answers

SOURCE: 1995 Grand Jeep Cherokee

The lower speeds are controlled by a resistor block. That's what needs to be replace. It's usually located next to the blower. It will have electrical wires connected to it. High speed bypasses the block so it alway works.
If you want to replace it then;
) Disconnect the battery negative terminal if the vehicle have air bags. Wait 2 minutes for system to discharge.
) Remove the kick block on the passenger side. )Remve the glove box ) Remove the bolts holding the blower motor resistor. Push the red lock up and press down on the click ) Pull the block out. ) Install new block and reverse steps above.

Posted on Apr 14, 2009

  • 323 Answers

SOURCE: 97 Jeep Grand Cherokee only blows heat and ac out of dashboard

There is a vacuum leak under the hood. If it's a 6 cylinder, look on the drivers side for a vacuum line that runs vertical with a 90 degree angle fitting to the manifold. That one usually comes off. If it is a V8 look on the battery side for a broken or corroded vacuum line.

Posted on May 18, 2009

bridgesdean7
  • 41 Answers

SOURCE: 97 Jeep Grand Cherokee only blows heat and ac out of dashboard

try recharging the ac

Posted on Jun 03, 2009

  • 24 Answers

SOURCE: '98 Jeep Grand Cherokee - My Heat/AC worked

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

Posted on Oct 07, 2009

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