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craigzter
01-13-2010, 06:54 PM
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?!

Slo_Ride
01-13-2010, 07:08 PM
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
01-13-2010, 07:10 PM
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
01-13-2010, 07:10 PM
Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

SPOOLEDCRXB18
01-13-2010, 07:12 PM
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

< ---Master ASE Mechanic BTW, not throwin Big d!ck or anything just letin you know Im in the game...lol

etznova
01-13-2010, 07:12 PM
Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

x2

Slo_Ride
01-13-2010, 07:12 PM
Dont Fill It With Water!!!!!!!!!!!!!!!!!!!!!

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

etznova
01-13-2010, 07:13 PM
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

< ---Master ASE Mechanic BTW, not throwin Big d!ck or anything just letin you know Im in the game...lol

yep my guess would be the tstat housing

DBBOOM
01-13-2010, 07:14 PM
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
01-13-2010, 07:15 PM
...... 2 words,, Pressure test!!!!

SPOOLEDCRXB18
01-13-2010, 07:15 PM
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
01-13-2010, 07:16 PM
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

< ---Master ASE Mechanic BTW, not throwin Big d!ck or anything just letin you know Im in the game...lol

No offense to you but being ASE certified isnt that important. I have seen some scary mechanics that were ASE ;)

dasubmasta
01-13-2010, 07:16 PM
http://www.pleasurizer.com/cg_coolant_test-thumb.JPG

Slo_Ride
01-13-2010, 07:16 PM
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
01-13-2010, 07:16 PM
Which motor 4.3L or 2.2L

Slo_Ride
01-13-2010, 07:17 PM
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

Exactly

dasubmasta
01-13-2010, 07:18 PM
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Turbo24
01-13-2010, 07:20 PM
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

< ---Master ASE Mechanic BTW, not throwin Big d!ck or anything just letin you know Im in the game...lol

this x2 (also a mechanic)

but since everyone else is throwin out random ideas... lift the radiator cap, drive a whole new car under it, replace cap. PROFIT!!! :fyi:

SPOOLEDCRXB18
01-13-2010, 07:23 PM
No offense to you but being ASE certified isnt that important. I have seen some scary mechanics that were ASE ;)

LMAO.....TRUTH!!! I aint one of those though...I think, ummmm:crazy:

craigzter
01-13-2010, 07:55 PM
mine is the 4.3...

Thanks for the replies and input. I had a new thermostat put in last year when I had my tires put on. Never had a problem with it at all. The thermostat was stuck closed but didnt have this problem lasttime, just the overheating part.

Its dark outside so I guess I will wait til morning to actually mess with it. Im hoping its nothing major and cheap to fix :crap:

Oh, and btw my heater doesnt work to start with. It went out last winter and never fixed it, im a lazy *** I know o.0

SRim23
01-13-2010, 08:00 PM
in my ford thunderbird i had the same thing happen and it was blown head gaskets.

Slo_Ride
01-13-2010, 08:01 PM
In my 2001 blazer I had the same thing happen. It was a hose.

craigzter
01-13-2010, 08:01 PM
in my ford thunderbird i had the same thing happen and it was blown head gaskets.

sshh I dont wanna hear that ****! lol jk..i hope this is not the case :crap:

craigzter
01-13-2010, 08:03 PM
In my 2001 blazer I had the same thing happen. It was a hose.

I will double check the hoses again when there is daylight. The overfill tank looks like orange crappy lookin water =\

icpurplepplalot
01-13-2010, 08:04 PM
Check all of your hoses, check your water pump, and check the thermostat.

hornedfrog1985
01-13-2010, 08:10 PM
Wouldn't some of the water still be left in the system some where though?

Slo_Ride
01-13-2010, 08:12 PM
Dont just check the hoses tho, look everywhere. Could be a crack or hole in the radiator as well.

roarzorz
01-13-2010, 08:17 PM
Which motor 4.3L or 2.2L

You couldn't get a 2.2L in a Blazer or Jimmy.

roarzorz
01-13-2010, 08:19 PM
The overfill tank looks like orange crappy lookin water =\

It's a common problem in those trucks for the heater core to get clogged and cause problems.

audioatg
01-13-2010, 08:20 PM
the 4.3 motors are known to have leaky intake gaskets. Big time. Its like a given. And water pump problems.

Good way to tell. Clean off everything with water. Let cool down. Top off the coolant system. And go to the store and buy yourself a pressure tester. Or rent one. Dont care what one you do. By buying it you will always have it and could use it to test friends rides out to for a small fee to make your money back.

If its running down the back side of the motor. Im sure its a intake gasket leaking on it.

audioatg
01-13-2010, 08:21 PM
I will double check the hoses again when there is daylight. The overfill tank looks like orange crappy lookin water =\


Good Old Dex-cool. Best thing GM came up with to bring customers back.

99grandprixGT
01-13-2010, 08:22 PM
I will double check the hoses again when there is daylight. The overfill tank looks like orange crappy lookin water =\

thank gm and dex cool coolant

wgsj_fortvalley
01-13-2010, 08:22 PM
...... 2 words,, Pressure test!!!!

x2

craigzter
01-13-2010, 08:28 PM
Ya, i see it says in the manual they recommend dex-cool, pft ya okay, FOCK YOU GM! :lol:

I guess I will be buying a pressure tester and see whats up..thanks guys!

Slo_Ride
01-13-2010, 08:31 PM
you dont have to buy one. but it is technically the correct way to do it. parts store will loan you one.

craigzter
01-13-2010, 08:37 PM
you dont have to buy one. but it is technically the correct way to do it. parts store will loan you one.

Might as well to add to the tool collection lol...

Slo_Ride
01-13-2010, 08:38 PM
absolutely

audioatg
01-14-2010, 07:04 PM
Guess what I did today. Intake gasket set on a 4.3 blazer. I took some pics will have to post them up later. Once again thank you Dex-cool.

plugitin
01-14-2010, 07:08 PM
dex cool ftl

Johnny Law.Lulz
01-14-2010, 07:25 PM
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Your point is ??

Oneswtredhead
01-14-2010, 07:59 PM
I was told when my head gasket went out on my pontiac to have the coolant flushed and changed out for normal green stuff and we never had a problem again with that car.

tehWorstest
01-15-2010, 01:47 AM
O rly ?

Oneswtredhead
01-15-2010, 02:01 AM
the the orange stuff has alot of alkalides the dry out and get hard and cause it to plug up ect....
i googled it.

tehWorstest
01-15-2010, 06:45 PM
pretty awesome :fyi:

audioatg
01-15-2010, 07:02 PM
I was told when my head gasket went out on my pontiac to have the coolant flushed and changed out for normal green stuff and we never had a problem again with that car.

You can but its really not recommended. I dont have all the facts for it. Some GM cars/trucks you can some you cant. I think its mostly the newer ones you cant swtich over to green. Now not only GM uses a form of Dex-cool. Ford has a brand of it too.