2001 Chrysler Town and Country Low heat

Tiny
S7FALCON
  • MEMBER
  • 2001 CHRYSLER TOWN AND COUNTRY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
At idle with a warm engine and fan on medium the heat feels warm and a little better in recirc mode. With fan on high the heat drops and, drops more after driving.
The mechanic first changed the thermostat; no change. Then flushed the system to clear a possible air bound problem; at idle the temp read about 135-40. But the heat again dropped off after driving a few miles.
Now he's suggesting a new radiator, that it may be plugged.
Is this the next step, in what seems like a proccess of eliminating what is not the problem? The only thing heating up is me!
Your advice would be greatly appreciated.
John
Do you
have the same problem?
Yes
No
Monday, December 22nd, 2008 AT 12:05 PM

3 Replies

Tiny
ZACKMAN
  • MEMBER
BASIC HEATER SYSTEM TROUBLE SHOOTING CHART

CONDITION POSSIBLE CAUSE
Insufficient, Erratic, or No Heat Low Coolant Level

. Incorrect thermostat.
. Restricted coolant flow through heater core.
. Heater hoses plugged.
. Misadjusted control cable.
. Sticking heater control valve.
. Vacuum hose leaking.
. Vacuum hose blocked.
. Vacuum motors inoperative.
. Blocked air inlet.
. Inoperative heater blower motor.
. Oil residue on heater core fins.
. Dirt on heater core fins.

***Radiator: If it is not leaking and your vehicle is NOT overheating, then it is fine. I would check for possible clogged heater core, before I touch the radiator.***
Was this
answer
helpful?
Yes
No
Monday, December 22nd, 2008 AT 9:27 PM
Tiny
S7FALCON
  • MEMBER
The radiator doesn't leak and is not overheating! That's good leave the radiator alone - Is there a way to check the flow thru the heater core without dumping the fluid?
John
Was this
answer
helpful?
Yes
No
Monday, December 22nd, 2008 AT 10:18 PM
Tiny
ZACKMAN
  • MEMBER
No matter what, you will lose some fluid. Instead of removing the hose ends at the heater core, I would remove the hose from the other end from the engine. It is a little harder, but it will be a lot less messier. Get ready with some plastic bags and rubber bands. When you pull a hose out, cover the nipple with the plastic bag and wrap the rubber band around it. Let the fluid in the hose to drain into a bucket or something.

Once a hose is removed, attach a T-fitting like this one


http://www.2carpros.com/forum/automotive_pictures/55316_pstafkit_1.jpg

and a garden hose to the other hose, and push all the junk out of the heater core.

You may also want to consider refilling with new fluid...
Was this
answer
helpful?
Yes
No
Tuesday, December 23rd, 2008 AT 6:51 PM

Please login or register to post a reply.

Recommended Guides