The overflow tank has pressure builted up even when the car is cold

Asked by May 28, 2014 at 06:42 PM about the 1996 Mazda Millenia

Question type: General

2 Answers

95,095

Pressure should have backed off during the cool down, you could be looking at just a bad radiator cap, you can have it tested, or if it has never been replaced, just replace it.

1,145

You may also have a blown head gasket that's leaking fuel/air and of course, pressure into the cooling system. There a lot more pressure in the cylinders than in the cooling system.

Your Answer

Add photo

Related Questions

Search Mazda Millenia Questions

Mazda Millenia Experts

#1 Steven Cisneros
Steven Cisneros
Reputation 730
#2 Keith12345
Keith12345
Reputation 420
#3 Tom Demyan
Tom Demyan
Reputation 230
View All

Related Models For Sale

Used Honda Civic
811 Great Deals out of 88,080 listings starting at $1,299
Used Honda Accord
941 Great Deals out of 77,703 listings starting at $899
Used Nissan Altima
1,153 Great Deals out of 79,636 listings starting at $500
Used Chevrolet Tahoe
556 Great Deals out of 31,361 listings starting at $1,500
Used Chevrolet Impala
589 Great Deals out of 34,066 listings starting at $899
Used Mazda MX-5 Miata
43 Great Deals out of 3,934 listings starting at $2,985
Used Mazda 626
193 listings
Used Ford Mustang
543 Great Deals out of 45,840 listings starting at $1,999
Used Mazda Protege
260 listings
Used Lexus GS 300
28 Great Deals out of 758 listings starting at $2,700
Used Toyota Camry
1,098 Great Deals out of 90,895 listings starting at $1,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.