2001 f 150 heater warms up but not hot at all

Asked by Dec 03, 2015 at 12:10 AM about the 2001 Ford F-150 Lariat Crew Cab 4WD SB

Question type: Maintenance & Repair

2 Answers

95,125

Make sure that the engine is at normal operational temp, a stuck open thermostat can cause low heater output, if that checks good then you need to see that all the blend doors are operating correctly and your not mixing cold air with heated air, and if those check good then the heater core is most likely partially plugged. HTH

18,850

Also check the line from the radiator to the heater core. There is usually a valve attached with operates on vacuum to keep it open. As a safety precaution the valve is always open supplying hot water to the core in the event someone gets stranded in frigid locations. If the engine runs, the heater will work, absent a blend door, actuator problem.

Your Answer

Add photo

Related Questions

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 8,210
#2 dandyoun
dandyoun
Reputation 4,390
#3 tennisshoes
tennisshoes
Reputation 2,880
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,764 Great Deals out of 181,202 listings starting at $250
Used GMC Sierra 1500
760 Great Deals out of 69,126 listings starting at $1,850
Used Dodge Ram 1500
411 Great Deals out of 10,833 listings starting at $1,400
Used Ford F-250 Super Duty
328 Great Deals out of 46,262 listings starting at $1,450
Used Toyota Tundra
437 Great Deals out of 34,678 listings starting at $2,990
Used Toyota Tacoma
473 Great Deals out of 41,591 listings starting at $1,995
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Ford Explorer
928 Great Deals out of 70,253 listings starting at $997
Used Chevrolet Tahoe
559 Great Deals out of 31,371 listings starting at $1,500
Used Ford Ranger
176 Great Deals out of 5,676 listings starting at $950
Used Ford F-350 Super Duty
373 Great Deals out of 25,769 listings starting at $1,995

Used Cars For Sale

2018 Ford F-150 For Sale
51 listings starting at $35,135
2017 Ford F-150 For Sale
26 Great Deals out of 133,538 listings starting at $18,022
2016 Ford F-150 For Sale
87 Great Deals out of 13,558 listings starting at $18,300
2015 Ford F-150 For Sale
199 Great Deals out of 8,344 listings starting at $16,999
2014 Ford F-150 For Sale
383 Great Deals out of 12,687 listings starting at $6,600

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.