99 Integra LS cooling issues...maybe?!?!

[fmfkid250]

@spoon_fed

the needle rockets back .

@dyingwish

It is definately thermostat related…due to the way the water pipe and thermostat housing sit horizontally on the back of the engine. What happens is: an air bubble gets stuck behind the t-stat making it read higher than the actual coolant temp until you hit the gas, then the coolant flow quickens…and the bubble shoots past the t-stat and the gauge goes down.

Either replace the t-stat and bleed the system, or try just bleeding it first. Honda t-stats typically fail OPEN, so your gauge never appears to get warm.

like when it rockets does it twitch? like or just comes back?

is your fan running?