Mechanics, come hither!

[craigzter 10+ year member]

Okay, got a slight problem here guys. My 2002 blazer is seeming to overheat and lifted the hood up, and steam rolls everywhere! I dont see where it could have came out of the radiator. All hoses seem to be in good shape, but water/antifreeze is all over the engine compartment.

Any ideas as to whats going on?!

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[Slo_Ride 5,000+ posts]

Well obviously you have a leak. Fill the radiator up with water, start the engine and look under the hood for the leak. You may have to let the engine reach normal operating temp so that the thermostat will open and fully circulate the water. Trust me sometimes they kind be difficult to find if its just a pinhole. Also have the heater on high and check the heater hoses.

 

[Johnny Law.Lulz 5,000+ posts]

You said its all over the engine, maybe its the thermostat itself ? Im not keen on Chevy motors so i dont know how they are designed but the first suggestions made were great. You'll see the problem if you look.

 

[hornedfrog1985 5,000+ posts]

Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

 

[SPOOLEDCRXB18 10+ year member]

More than likely, a pinhole in one of the heater hoses or water pump bypass hose. Also the thermostat water neck is kinda prone to rustin through from the inside. Best thing would be to try and rent a pressure tester from pep boys, checkers etc.. and pressurize the system and then look for where the waterfall is....lol

 

[etznova 10+ year member]

Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

x2

 

[Slo_Ride 5,000+ posts]

Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

bleach then? waters free, its gonna leak out. use water.

 

[etznova 10+ year member]

More than likely, a pinhole in one of the heater hoses or water pump bypass hose. Also the thermostat water neck is kinda prone to rustin through from the inside. Best thing would be to try and rent a pressure tester from pep boys, checkers etc.. and pressurize the system and then look for where the waterfall is....lol


yep my guess would be the tstat housing

 

[DBBOOM 10+ year member]

Thermostat may be sticking. Also check the oil for water, may have a bad head gasket. Impeller on the water-pump may be bad.

 

[dasubmasta 10+ year member]

...... 2 words,, Pressure test!!!!

 

[SPOOLEDCRXB18 10+ year member]

Water's fine for testing...like homeboy said its gonna leak out, no sense in spillin coolant all over the ground. wouldnt leave water in it though after repairs

 

[grimreper912003 5,000+ posts]

More than likely, a pinhole in one of the heater hoses or water pump bypass hose. Also the thermostat water neck is kinda prone to rustin through from the inside. Best thing would be to try and rent a pressure tester from pep boys, checkers etc.. and pressurize the system and then look for where the waterfall is....lol


No offense to you but being ASE certified isnt that important. I have seen some scary mechanics that were ASE //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[dasubmasta 10+ year member]

http://www.pleasurizer.com/cg_coolant_test-thumb.JPG

 

[Slo_Ride 5,000+ posts]

yep my guess would be the tstat housing

I'd bet money its a hose. You cant see a small hole in a hose unless its pressurized. Its simple man, do what I said and you will find the leak, where ever it is.

 

[Varinabassing 10+ year member]

Which motor 4.3L or 2.2L