replaced heater core in my 99 expedtion warm air in front cabin and cold air in the rear cabin.

Asked by Jan 11, 2015 at 04:59 PM about the 1999 Ford Expedition 4 Dr Eddie Bauer 4WD SUV

Question type: Maintenance & Repair

just to help narrow down the options to my problem with my 99 expedtions heat. i noticed late last fall that my expedition wasn't blowing hot air in the front at all but hot air in the rear when turned on. my first thought was to start with the simplest and cheapest to fix. i replaced the thermostat first. it didn't help any. i then researched my problem online and checked my blend door and blend door motor next. it worked as it should. i crossed out any thoughts of the blower motor be faulty, its blowing hard enough on high it blow my cap off in the vent position. last but not least replaced the heater core. im now getting warm air out of the front vents but cold air out of the rear vents. got the coolant system to burp a few times by parking on a steep incline. but no difference was made to rear heat and still blowing warm air in front.. all out of ideas. any help  is greatly needed. thanks.

3 Answers

24,365

You might still have air in the system. Try using a bleed funnel, if not, park at a steep angle (you want the radiator higher than the engine) and run the engine with the cap removed from the overflow bottle, adding coolant as needed. Feel the hoses to the heater cores, you should feel them getting hot (optimal engine temp is around 192 degrees), there's a tee where the heater hoses split to front and rear cores.

ok ill try that..

24,365

I had an Expedition as well, and did one coolant flush while I owned it, and I thought it was a tougher flush than on most vehicles, mostly because of that blasted rear heater core. Just takes longer.

Your Answer

Add photo

Related Questions

Expedition

Looking for a Used Expedition in your area?

CarGurus has 24,887 nationwide Expedition listings starting at $700.

ZIP:

Search Ford Expedition Questions

Ford Expedition Experts

#1 T_S_T
T_S_T
Reputation 1,890
#2 Larry Sturgis
Larry Sturgis
Reputation 1,310
#3 lightGear
lightGear
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
547 Great Deals out of 29,234 listings starting at $1,699
Used Ford Explorer
945 Great Deals out of 72,518 listings starting at $1,000
Used Chevrolet Suburban
320 Great Deals out of 19,720 listings starting at $2,000
Used Lincoln Navigator
117 Great Deals out of 5,791 listings starting at $1,900
Used Ford F-150
2,194 Great Deals out of 206,316 listings starting at $1,499
Used GMC Yukon
376 Great Deals out of 18,226 listings starting at $2,950
Used GMC Yukon XL
236 Great Deals out of 12,302 listings starting at $2,950
Used Cadillac Escalade
239 Great Deals out of 11,197 listings starting at $2,495
Used Ford Excursion
11 Great Deals out of 799 listings starting at $3,995
Used Dodge Durango
273 Great Deals out of 22,704 listings starting at $1,200
Used Ford F-250 Super Duty
346 Great Deals out of 46,938 listings starting at $1,895
Used Chevrolet Silverado 1500
1,717 Great Deals out of 175,751 listings starting at $1,250

Used Cars For Sale

2017 Ford Expedition For Sale
21 Great Deals out of 14,278 listings starting at $29,888
2016 Ford Expedition For Sale
131 Great Deals out of 2,317 listings starting at $25,799
2015 Ford Expedition For Sale
20 Great Deals out of 750 listings starting at $19,995
2014 Ford Expedition For Sale
39 Great Deals out of 832 listings starting at $17,950

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.