1986 Honda Accord Warm are when engine is pushed

1986 HONDA ACCORD
140,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
KAKRUNCH
  • MEMBER
  • 1 POST
My accord runs very cool (stays just under half on the guage). The heater blows warm air when running harder, but cool when normal driving, and never hot like it should be. I replaced the thermostat. same result. Someone told me it could be air in the heater core. I tried jacking the front end up and getting the air out, little difference. I did notice the system is not building pressure. I borrowed a Stant pressure checker and found no leaks. I filled the resevoir and am now completly stumped. could i have a partially blocked lline?

HELP
Dec 12, 2008 at 12:35 AM
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi kakrunch,

1. Is the heater valve opening fully?
2. Did you check for clogging for the heater hoses into and out of heater core?
3. Was the thermostat of the correct typre and specifications?
4. Long shot on this, are the heater hoses correctly installed?
Dec 15, 2008 at 8:01 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