Toyota MR2 Message Board - View Single Post - 3S-GTE USDM Turbo Engine probs with thermostat

muffinman · 11-04-2009, 04:15 PM

a leak can cause air to get in the system which could then cause the bubbling. properly fill and bleed the system and see if it leaks.

is your overflow bottle damaged?
what's the condition of your pressure cap?

11-04-2009, 04:15 PM	#9 (permalink)
muffinman U-P-G-R-A-Y-E-D-D Join Date: Jan 2008 Location: Sunny South Florida Posts: 5,880 Thanks: 53 Thanked 283 Times in 272 Posts Blog Entries: 1 My Google Map iTrader Rating: (2/100% )	a leak can cause air to get in the system which could then cause the bubbling. properly fill and bleed the system and see if it leaks. is your overflow bottle damaged? what's the condition of your pressure cap?