sr4dt

Today morning while driving to work CEL came on and it threw a code of P1486 (Cooling System Malfunction). Any ideas as to what could have caused it.

I monitored the temps for about 10 miles (via scanguage) and they seemed to be no different than what I get every day, so I have cleared the code for now.

OLD_HATCH

odd

Have you checked the service manual?

Maybe simply bleeding your system maybe? Hows the coolant look, and how old is it?

sr4dt

Its was raining heavily yesterday so I didn't get a chance to look under the hood and see if there was any issue with the coolant. Anyway it was changed 14 months back when the WP/TB were replaced, so unless there is a leak somewhere it shouldn't be the issue. I was thinking it may have been an issue with the Thermostat, but since resetting the code I have done over 50miles and 2 of which were cold start with engine @ 50F and the code hasn't come on yet.