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

109,845

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 out of 1 people think this is helpful.
18,230

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 7,860
#2 dandyoun
dandyoun
Reputation 4,360
#3 tennisshoes
tennisshoes
Reputation 2,740
View All

Related Models For Sale

Used GMC Sierra 1500
810 Great Deals out of 67,796 listings starting at $2,484
Used Dodge Ram 1500
471 Great Deals out of 11,174 listings starting at $700
Used Ford Mustang
450 Great Deals out of 45,581 listings starting at $1,999
Used Ford F-250
473 listings starting at $3,475
Used Ford Explorer
931 Great Deals out of 72,327 listings starting at $1,499
Used Ford Ranger
195 Great Deals out of 5,836 listings starting at $1,650
Used Jeep Wrangler
278 Great Deals out of 18,077 listings starting at $2,950

Used Cars For Sale

2017 Ford F-150 For Sale
28 Great Deals out of 127,043 listings starting at $13,377
2016 Ford F-150 For Sale
118 Great Deals out of 17,719 listings starting at $18,848
2015 Ford F-150 For Sale
193 Great Deals out of 7,868 listings starting at $17,900
2014 Ford F-150 For Sale
378 Great Deals out of 12,544 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.