Comments on: Car Heater Blows Cold – Auto Service Tips

By: jason

jason — Mon, 08 Mar 2010 00:38:02 +0000

I have a 1993 geo storm the heat works when i sit and leave it running but once i start driving it the temp gauge goes all the way down and blows cold air

By: Jackie

Jackie — Thu, 04 Mar 2010 22:09:28 +0000

How much should I be charged to replace the heater core in my 2005 Sebring and does the dash board need to come off to do so?

By: Alicia

Alicia — Thu, 18 Feb 2010 06:14:09 +0000

I have a 93 Dodge Grand Caravan and I had to actually test a theory on it before I could start asking around about the problem. When I use the heat it seems to barely work. I went out to the store late in the evening and realized that as I hit 30mph the heat kicked on real strong but as soon as I would go below 30mph the heat turned to cool air, as if I had just switched on the AC. What could this problem be and how much would it cost to fix this?? Thank you in advance!

By: Leah

Leah — Thu, 18 Feb 2010 02:16:52 +0000

I have a 2001 Toyota Camry and a few months ago the air stopped blowing out of the vent on the 2 lowest settings, but would work only when the gas pedal was pushed. Eventually that stopped working. Now air only blows out when it is on the highest setting, heat or a/c. What is the problem? How much to fix it?? Thanks!

By: Matt

Matt — Tue, 16 Feb 2010 21:05:57 +0000

I have a 99′ ford Mustang, and when I turn the heater on, it will blow out warm air at first but then turn ice cold. I replaced the thermostat and filled the coolant, but it did not fix the problem. I am hoping that the heater core does not need replaced. Just wondering if you had any idea’s on what it could be.

By: Adam

Adam — Sun, 14 Feb 2010 21:12:11 +0000

I have a 2003 chevy s10, the heat is giving me some problems. I changed the thermostat and drained and replaced coolent. It takes a really long time to get any warm air out of it and then turns cold once I start driving. Any ideas would be helpful. Thanks

By: Rena

Rena — Mon, 08 Feb 2010 23:19:34 +0000

I have a 2003 Hyundai Santa Fe v6 (3L). The heat works at first but after using the heat for 45-60 min’s it starts blowing cooler. Any ideas on what to look for or where to start would be appreciated. Thanks!

By: Mike

Mike — Fri, 05 Feb 2010 03:04:36 +0000

2002 Pontiac Montana blows hot air then cold air. Eventually it starts blowing hot again. What would cause this to happen?

By: Dan

Dan — Tue, 02 Feb 2010 16:46:46 +0000

my car is a ford fiesta zetec 1999 and the for past two days the heater has been blowing cold air. i have checked my collant all hoses are warm and the engine is running at correct temperature. what could be the problem ?

By: dennisb - Auto Tool Sales

dennisb - Auto Tool Sales — Tue, 02 Feb 2010 11:20:12 +0000

Sam, I would pressure test the the coolings ystem and do a carbon test to see if there is exhaust in the cooling system.

1. A coolant leak in the engine’s cooling system could allow coolant out and air in.

2. Exhaust in the cooling system (carbon test to determine) could mean a leaking head gasket which would cause air (exhaust) into the cooling system.

Either scenario could be the problem with repeated cases of an air-lock in the cooling system.