Coolant cap popped off at normal tempratures

Tiny
GEORGEJUSTIN17
  • MEMBER
  • 2002 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I drove to work today and it was driving fine no weird temperature problems nothing as I got to work and parked it sat fir about 5 minutes before I heard a thud I checked my engine and the coolant cap was gone and coolant was all over the ground next to it what could this be?
Thursday, April 21st, 2016 AT 2:25 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Either a blockage of some sort or a head gasket problem. Have coolant system pressure checked for that.
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Thursday, April 21st, 2016 AT 3:33 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Hey Georgejustin17

Here is a guide for you to test for a blown head gasket

https://www.2carpros.com/articles/head-gasket-blown-test

Let us know what you find

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Thursday, April 21st, 2016 AT 5:00 PM

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