Heater only blowing cold air.

Asked by Jan 18, 2016 at 06:45 PM about the 1998 Ford Expedition 4 Dr XLT SUV

Question type: Maintenance & Repair

One heater hose is hot & one is really cold. The
heater will only blow cold air. What do i need to do
to fix it?

10 Answers

1,605

sounds like you have a plugged heater core, you can try to flush it out if that don't work then it will have to be replaced, and is very expensive because the dash has to come out

2 of 2 people found this helpful.
27,105

NO>>>>CHECK FOR A VACUUM LEAK>>>>>>>>>PLEASE

3 of 3 people found this helpful.
73,735

You mean like if there was work done to the cooling system to make sure and purge the air pockets out when refilling?

2 of 2 people found this helpful.
68,275

Check your heater valve,may be bad or vacume to it.

1 of 1 people found this helpful.
210

Sounds like plugged heater core. Inlet is good but it's to clogged up for fluid to travel through it. I've used vinegar and air compressor to blow it out through both hoses

1 of 1 people found this helpful.
1,605

you wont find that valve anywhere nere a ford Expedition

1,605

they use a blend door to control the heat setting not a coolant control valve, If on hose is hot and one cold you have a restriction inside the heater core, I have had luck with CLR you can buy this at a hardware store

73,735

Say there Steve B. the parts book does call out one like this. I know somewhere around this year they stopped using this.

73,735

The heater hose valve like T_S_T picture.

1,605

The 97 to 02 has a blend door system with reg heating, if your expedition has Aux rear heat you will have a control valve for the rear heat, so my thinking there should be flow through the front heater core at all times. Is very hard to diagnose cars/trucks without seeing them, but I try to give the best advise I can. with the information a have

2 of 2 people found this helpful.

Your Answer

Expedition

Looking for a Used Expedition in your area?

CarGurus has 19,523 nationwide Expedition listings starting at $1,295.

ZIP:

Ford Expedition Experts

  • #1
    T_S_T
    Reputation
    1,960
  • #2
    Larry Sturgis
    Reputation
    1,410
  • #3
    lightGear
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
665 Great Deals out of 39,392 listings starting at $1,000
Used Ford Explorer
835 Great Deals out of 63,128 listings starting at $1,000
Used Chevrolet Suburban
331 Great Deals out of 21,730 listings starting at $1,900
Used Lincoln Navigator
85 Great Deals out of 4,590 listings starting at $1,900
Used Ford F-150
2,316 Great Deals out of 182,093 listings starting at $1,000
Used GMC Yukon
407 Great Deals out of 21,296 listings starting at $1,495
Used Cadillac Escalade
214 Great Deals out of 11,079 listings starting at $2,000
Used Dodge Durango
308 Great Deals out of 21,312 listings starting at $2,195
Used Ford F-250 Super Duty
375 Great Deals out of 44,451 listings starting at $2,400
Used Chevrolet Silverado 1500
2,146 Great Deals out of 167,073 listings starting at $1,498

Used Cars For Sale

2018 Ford Expedition For Sale
14 listings starting at $50,665
2017 Ford Expedition For Sale
37 Great Deals out of 10,424 listings starting at $29,888
2016 Ford Expedition For Sale
56 Great Deals out of 1,429 listings starting at $26,333
2015 Ford Expedition For Sale
18 Great Deals out of 591 listings starting at $19,995
2014 Ford Expedition For Sale
39 Great Deals out of 749 listings starting at $16,950

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.