1999 Ford F150 heater blows lukewarm

1999 FORD F-150
187,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
TMICUE
  • MEMBER
  • 1 POST
when you switch it to heat it never gets warm. I checked the hoses going to the heater core and one gets hot the other stays cold. coolent level is fine and no wet spots at all.
Dec 10, 2009 at 8:49 AM
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the heater control valve and heater core for clogging, also might want to replace the thermostst for PM
Dec 10, 2009 at 8:57 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle