heater core problems

Asked by Dec 06, 2013 at 05:31 PM about the 2007 Chrysler Pacifica Touring S Package

Question type: Maintenance & Repair

I have had my car in to 2 different repair shops for blowing cold air. The first shop replaced
the thermostat, back flushed the heating core, replaced antifreeze, and reset the control
panel (delay) for heat. very little or no heat and then it went cold. So the 2nd repair shop
back flushed the heating core, reset the panel and thought they had the problems fixed.
Less than 5 miles down the road the cold air came again... they said my a/c was staying
on.
The 2 hoses that lead to the heater core (one hot/one is cold), I smell something when I
turn on the defrost. Control panel reset. Still no warm air!!! I was told the heater core most
likely needs replaced. I have spent so much $ so far to have it fixed and I am getting so
frustrated.

7 Answers

116,595

If one hose going into your heater core is hot and the other is cold your heater core is stopped up. Unless your model has a valve in one of the heater core hoses that lets or stops the flow of hot coolant into it. And if you have one with valve in the hose you would probably have to cold hoses right at the heater core. I think yours is stopped up

1 of 1 people found this helpful.
30

That is correct a heater core will have a supply and a return line so they both will be hot if the heater core is working properly , I am having the same issues myself with this 2004 pacifica except I am doing all of the work myself and still have not figured it out .

3 of 3 people found this helpful.
80

Check the oil cooler just replaced the thermostat and heater core still no heat found oil cooler at oil filter clogged replaced cooler problem solved

8 of 8 people found this helpful.

As what sporty05 said. I had the same problem. Repair shop could not find the problem. I traced it right to the oil cooler. Made a bypass loop and had heat. Now ordering a new cooler.

What nobody is talking about is that there is a oil cooler that gets clogged , and stops the flow of coolant .this cooler is located on top of the oil filter ,when this cooler gets clogged u will have no heat because the coolant circulation stops , u will have one hot heater core hose and one cold but your heater core wil not be clogged

10

What causes the oil cooler to clog,, the radiator and coolant are both clean??? 11-12-17 A timely reply would be appreciated. Thanks.

1 of 1 people found this helpful.

I flushed the oil cooler 3x replaced coolant and flushed system, and I'm still having problems with the cars heat it has over 125000 miles it might be the type of coolant I'm using witch is the recommend brand. Everytime I flush oil cooler I have good heat I might have to switch coolant brand or find additive to help flow

Your Answer

Pacifica

Looking for a Used Pacifica in your area?

CarGurus has 28,844 nationwide Pacifica listings starting at $2,499.

ZIP:

Chrysler Pacifica Experts

  • #1
    Tom Demyan
    Reputation
    660
  • #2
    Ramchargermopar_freak
    Reputation
    590
  • #3
    Jonathan Furse
    Reputation
    250
View All

Related Models For Sale

Used Honda Odyssey
442 Great Deals out of 31,502 listings starting at $1,058
Used Chrysler Town & Country
353 Great Deals out of 13,519 listings starting at $1,999
Used Toyota Sienna
490 Great Deals out of 23,297 listings starting at $1,500
Used Dodge Grand Caravan
439 Great Deals out of 30,642 listings starting at $2,490
Used Kia Sedona
167 Great Deals out of 7,407 listings starting at $1,895
Used Ford Explorer
1,266 Great Deals out of 70,140 listings starting at $1,000
Used GMC Acadia
1,065 Great Deals out of 51,368 listings starting at $1,900
Used Honda Pilot
754 Great Deals out of 41,334 listings starting at $998
Used Dodge Durango
389 Great Deals out of 24,349 listings starting at $1,500
Used Buick Enclave
526 Great Deals out of 23,417 listings starting at $4,987
Used Chevrolet Tahoe
828 Great Deals out of 42,144 listings starting at $1,987
Used Chevrolet Suburban
506 Great Deals out of 24,320 listings starting at $1,799
Used Toyota Highlander
612 Great Deals out of 38,160 listings starting at $2,500

Used Cars For Sale

2017 Chrysler Pacifica For Sale
73 Great Deals out of 11,222 listings starting at $18,965
2008 Chrysler Pacifica For Sale
5 Great Deals out of 121 listings starting at $2,959
2007 Chrysler Pacifica For Sale
4 Great Deals out of 373 listings starting at $2,900
2006 Chrysler Pacifica For Sale
385 listings starting at $2,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.