Question about 2003 Dodge Intrepid

1 Answer

Heater I own a '03 Intrepid, and it won't produce heat unless I have the rpm's over 1500. It produces heat going up hills or at a steady pace on the highway, but going down hills or slowing down it blows out very cold air. Don't know what is wrong or how to fix it.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

You did not say what engine you have. I will assume it is the 3.5 liter 24-valve engine.  This is most likely due to air in your cooling system. The only way to eliminate the air lock is to vent it out at the thermostat housing.  If there is air in the system, the engine will overheat and also fail to send heat to the heater.  When the engine is running at high RPMs the problem is mitigated, but it is trapped air that is probably the culprit.

Posted on Nov 15, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My heater works fine and blower works fine as long as the truck is moving, but if stopped or stop and go for more than 10 seconds the air goes cold. Ideas?


could be low on antifreeze. at a higher rpm it will produce heat. but at an idle it cannot circulate the antifreeze properly. check it and fill to proper level. hope this corrects your problem.

Jan 27, 2016 | 2004 Nissan Titan

1 Answer

Peugeot 807


Have you checked the PCV system?? If its stuck in the closed position then you will lack power and turbo boost. A vehicle needs 3 things to make it run proper; FUEL,FIRE and AIR. Try that and see if it helps.

Jan 01, 2014 | Cars & Trucks

2 Answers

Heater not working blows but no heat


Oh no! What do you do when your car heater not working? How do you figure out why there's no heat in car? What if you have no heater in car? Before you start trying to figure out how to fix car heater yourself, you should know a little about how your car's heating system operates. That will help you to figure out your car heater problem and why your heater isn't working properly or even at all! So, let's talk about how your heating system functions and then about some of the more obvious reasons that it you may be getting no heat from car heater. In order to heat up the inside of your car, the heating system uses some of the excess heat produced from your engine. Actually the engine produces so much heat that if you didn't have a way to release it (the heating/cooling system in your car) it could harm and even destroy the engine! That is why the heating/cooling system is set up to remove some of the heat and keep your car running smoothly.

Oct 05, 2012 | 1997 Lincoln Continental

1 Answer

Knocking knoise under 1500 rpm


If your car has hydraulic tappets and low low oil pressure at engine speeds then it can make tapping noises. Oil pressure is needed to maintaine the tappets clearances, excessive cleaeances will produce noises.

Jan 30, 2012 | 2000 Pontiac Sunfire

1 Answer

No in car heating,blowers working fine but it wont produce heat. Its a 51 plate grand cherokee Thanks


If it won't produce heat then you have an issue with your heater core. The heater core could be bypassed, in which case no hot coolant will get to it to produce heat inside the cabin. The heater core could be stopped up with dirt/debris, in which case the heater core can't radiate heat to produce heat in the cabin. The ducting in the dash could not be allowing the hot air to flow to the vents - therefore no heat in the cabin. I'd start with the heater core and check to see if it is bypassed. This generally happens on older vehicles because the parts can be harder to find.

Nov 01, 2011 | 2001 Jeep Grand Cherokee

1 Answer

03 Mazda Tribute's charging indicator light begins flashing on and off when engine reaches 1200 rpm and becomes contineously on at and above 1500 rpm. With engine idling or decelerating to below 1200 rpm...


It may be that the light is being tripped due to an "over voltage" condition. The faster you spin the alternator/engine the higher the voltage output of the alternator. I would test the voltage coming out of the alternator. It should be at about 14.3v or so max. If it gets into the 16v+ range when you increase the engine RPM then the voltage regulator has failed and needs to be replaced.

Feb 03, 2011 | 2003 Mazda Tribute

3 Answers

2008 Chevy Uplander has 21,000 miles. Nno heat from rear heater at idle. Disconnected hoses and flushed, water flowed good. Reconnected hoses and still no heat. Raised idle to 2000 rpm and got good heat....


Uplanders with the 3.9 engine are prone to no heat at idle speeds. Probably weeping head gasket. Air bubble trapped. Dealers will remove rad cap and let it sit at about 25 deg. angle for a couple hours. Good for awhile.

Nov 15, 2010 | 2008 Chevrolet Uplander

1 Answer

No heat on 1996 Chevy Silverado 1500


reverse the heater hoses and drive it for a cpouple of days your heater core is plugged and by reverseing them you can back flush the heater core after 2-3 days reverse them again

Jan 18, 2010 | 1996 Chevrolet K1500

1 Answer

2000 Grand Voyager 3.3 Engine noise


Have your egr valvle checked, if not operating properly it can cause engine 'pinging' which sounds like what u are describing. Let me know how it goes. countrycurt0

Oct 03, 2008 | 2004 Dodge Caravan

Not finding what you are looking for?
2003 Dodge Intrepid Logo

216 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge 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 Dodge Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...