Enormous Amount Of Water Pressure In Radiator

Asked by Mar 30, 2019 at 05:52 PM about the 2004 Chevrolet Trailblazer EXT

Question type: Maintenance & Repair

I have a 2004 Chevy Trailblazer it is building
up an enormous amount of water pressure I
have replaced the water pump and the the
thermostat & radiator can somebody give
me any answers

2 Answers

1,370

Compression gases?

67,285

Ditto to above. Check for hydrocarbons aka compression gases in coolant, most auto parts stores sell or rent "Block Tester" for this. If it checks positive you have a blown head gasket over pressurizing the cooling system.

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