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2G over heating issue

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G-S-T

Probationary Member
9
0
Jun 28, 2010
St. Paul, Minnesota
my car has been over heating... i replaced water pump and head gasket brand new. i replaced thermostat 1 month ago already too...oil pressure gauge would go pass halfway everytime wen i drive....isnt it suppose to stay in the middle? there is also no coolant leak..help? 97 eclipse gst with some mods.
 
Was the car overheating when you started changing all the components? Has it run at the proper temp since the head gasket was changed?
 
+1

Need more info on when it started along with mods. You could have a block in your coolant passages somewhere or it could be a FMIC blocking all the air. Perhaps your fans aren't turning on.
 
sounds alot like my car. i replaced my thermostat and i feel its fixed but i havent driven the car long enough to tell if its fixed completly since i have a idle problem. but i also dont think my fans turn on either and and have no idea why.
 
mods: 16g turbo, turbonetics boost controller, fuel pressure regulator, walbro 255 fuel pump, front mount intercooler, stock injectors, super afc, tial waste gate...

Was the car overheating when you started changing all the components? Has it run at the proper temp since the head gasket was changed?

the car was overheating thats why i replaced those parts...after when those parts was replaced, it was getting worser on over heating....before i replaced those parts, it was over heating when i drive on the highway, but on regular streets it was doing fine....but now it over heats on regular streets too after replacing those parts...

+1

Need more info on when it started along with mods. You could have a block in your coolant passages somewhere or it could be a FMIC blocking all the air. Perhaps your fans aren't turning on.

my fan still work

help???
 
Are you noticing any coolant level change after driving and it starts to over heat? Is your reserve still full and clean? Coolant in your system, is it still a normal color?
 
To go along with the coolant level/color notes...any sign of coolant in the oil?

What made you determine the need for a head gasket change, that seems a major project for a car that's overheating?
 
coolant flush...?

yea i did that

change thermostat if you havent already

i changed thermostat 2 months ago

Are you noticing any coolant level change after driving and it starts to over heat? Is your reserve still full and clean? Coolant in your system, is it still a normal color?

all the coolant gets shoot back out to the reserve and it boils...normal color coolant

To go along with the coolant level/color notes...any sign of coolant in the oil?

What made you determine the need for a head gasket change, that seems a major project for a car that's overheating?

because the car is over heating thats why i did a head gasket change...my cousin told me that head gasket was no good because we can hear something boiling from inside my engine...
 
I've never heard of a head gasket being diagnosed quite like that. Normally you'd look for evidence of coolant in the oil or exhaust. Another simple trick is to take the radiator cap off the car when cold and start it up. Watching the cooling flow within the radiator can give you an idea of well, if you get excessive bubbling/foaming, you have head related issues.

Did you change the stat/head gasket at the same time? If the problem became worse immediately after you made the changes, perhaps you made it worse with the changes. I've seen stats that were 'new' and bad, or accidentally installed backwards.
 
I had the same issue, i had a cracked overflow tank and the car would leak a little coolant at a time while driving on the highway, so bit by bit it would get hotter while driving on the highway. Check if your overflow tank is cracked. If you find nothing wrong then you need to do a leak down test to figure out if the head gasket was defective.
Good Luck
 
Is it overheating at idle or while driving? If at idle, flush the radiator, and get a new radiator cap. Also try burping the system. Basically, leave the rad cap off. Start the car, let it warm up to operating temps. You will see bubbles coming out of the coolant at the rad cap if there is air in there.
 
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