heater blowing barely warm air?

1990 PEUGEOT 405
105,000 MILES • 2.6L • 4 CYL • TURBO • MANUAL
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COALFIR3
  • MEMBER
  • 1 POST
heater performance warm, blowing barely warm air through the middle parts of the dash board the side vents near the windows get a bit hotter, moving the slider is easy
Jan 24, 2015 at 4:39 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
When the engine is running, warm, and the heater is on, do both heater core hoses get hot? Is the coolant full?
Jan 24, 2015 at 10:08 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,214 POSTS
I would check the coolant level first which if it is low it will cause this problem. Please go over this video and guide to see if it helps

https://youtu.be/SNRb6pSwYuU?si=ZJVVFczkglR7Nqv0

and

https://www.2carpros.com/articles/car-heater-not-working

If it is low on coolant add some and if it gets low again you have a slow coolant leak. Please go over these guides and get back to us.


Sep 12, 2024 at 10:19 AM
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