water won't get hot in coolant and heater wont blow hot

Asked by Mar 01, 2014 at 12:45 PM about the 1993 Ford F-150 S 4WD LB

Question type: Maintenance & Repair

2 Answers

112,185

Sounds like your thermostat is stuck open. With engine at operating temp feel the hoses going to the heater core at firewall. Is both cold or Luke warm? If so possibly thermastat stuck open or if you vehicle is equipped with a valve in the inlet hose to heater core it could be stuck closed. Is one hose hot and the other cold? If so your heater core is stopped up. Might try taking hoses off and back flushing water straight thru heater core. When water flows freely both ways hook hoses back up and check for heat in vehicle. If both hoses are hot then you have a damper door/actuator issue under the dash. Hope this helps

1 of 1 people found this helpful.
19,350

Good job Dandy. Covered just about everything in twelve lines.

Your Answer

Add photo

Related Questions

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 8,500
#2 dandyoun
dandyoun
Reputation 4,420
#3 tennisshoes
tennisshoes
Reputation 2,950
View All

Related Models For Sale

Used GMC Sierra 1500
774 Great Deals out of 68,507 listings starting at $1,800
Used Dodge Ram 1500
403 Great Deals out of 10,927 listings starting at $1,000
Used Ford F-250
465 listings starting at $4,390
Used Ford Mustang
680 Great Deals out of 44,707 listings starting at $1,500
Used Ford Explorer
889 Great Deals out of 64,222 listings starting at $799
Used Ford Ranger
169 Great Deals out of 5,600 listings starting at $900

Used Cars For Sale

2018 Ford F-150 For Sale
873 listings starting at $29,070
2017 Ford F-150 For Sale
73 Great Deals out of 123,863 listings starting at $18,199
2016 Ford F-150 For Sale
118 Great Deals out of 9,442 listings starting at $14,950
2015 Ford F-150 For Sale
218 Great Deals out of 8,925 listings starting at $15,990
2014 Ford F-150 For Sale
336 Great Deals out of 12,546 listings starting at $9,900

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.