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

124,095

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 people found this helpful.
23,920

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

Your Answer:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,830
  • #2
    dandyoun
    Reputation
    4,970
  • #3
    tennisshoes
    Reputation
    3,890
View All

Related Models For Sale

Used GMC Sierra 1500
816 Great Deals out of 60,745 listings starting at $1,495
Used Dodge Ram 1500
342 Great Deals out of 9,284 listings starting at $1,800
Used Ford Mustang
297 Great Deals out of 40,392 listings starting at $1,312
Used Ford F-250
404 listings starting at $3,495
Used Ford Explorer
943 Great Deals out of 71,545 listings starting at $695

Used Cars For Sale

2018 Ford F-150 For Sale
124 Great Deals out of 126,422 listings starting at $17,290
2017 Ford F-150 For Sale
144 Great Deals out of 8,108 listings starting at $15,826
2016 Ford F-150 For Sale
237 Great Deals out of 9,802 listings starting at $14,500
2015 Ford F-150 For Sale
308 Great Deals out of 11,699 listings starting at $9,950
2014 Ford F-150 For Sale
364 Great Deals out of 10,062 listings starting at $7,995

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.