Reserve overflow cap popped off no indication of overheating

Asked by May 20, 2019 at 11:11 AM about the 2000 Chrysler 300M

Question type: General

Went to car wash had car running well vacuuming all
of a sudden  overflow cap popped off  no overheating
on dash put water in it and try ed to get home  but it
went all the way to hot

3 Answers

180,205

Could be a thermostat, but being a Chrysler it sounds more like it blew a head gasket. You can get a DIY kit from your local parts store, just follow directions.

I looked up the overflow tank cap the one on it doesn't look right it is the silver radiator cap with the red push down like button online it say radiator cap

180,205

The red button is a pressure release, but your right that should not be on there, get one from your local parts store, it should just look like a normal radiator cap, no pressure release.

Your Answer:

300M

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