I just bought my 05 evo8 and I love the car but I did notice one thing, after driving 400 miles my coolant reservoir is empty it only took 400 miles to get it their. I wanted to know if its normal or is their something wrong. The car drives and runs awesome with no smoke nothing.

 

My car does the same thing, And I can't figure it out.

Any help would be appreciated

 

Your headgasket is toast and is either getting pushed out or burnt up in the cylinder

 

But sometimes i can hear water running inside the car when i start the car sometimes, does that have to do with anything? I thought when you burn your head gasket the car smokes?

 

Have you topped off the fluids recently?

 

If that were the case we would have a ton of white smoke pouring out of the back, I blew a headgasket in my procharged 97 cobra and I know the symptoms of a bad headgasket. This is not a headgasket problem.

I top off the fluids every oil change and 500-1000 miles later the coolent is very low in the reservoir.

 

I've never experianced this.

It could also be that are cars don't need a lot of coolent...

I did a compression test and everything was fine.

 

I just bought this car so it only has 10,000 miles all stock so i don’t know when was the last time they check all fluids. but its hard to believe its a blow head gasket too.

 

It all has to do with the radiator cap as well. I have a 1.5 bar one and the fluid levels always change. It's always where it should be though.

 

1.5 bar? my is 1.0 bar is that the problem?

 

If coolant is "disappearing" from your reservoir, you have 1 of the following problems (or maybe both):

1.) Destroyed headgasket

2.) Coolant leak

You will NOT necessarily have white smoke pouring out of your exhaust if your headgasket is blown. It depends on the severity of the leak. Have one of your friends follow behind you while you do a WOT pull, and see if you shoot any smoke out the back. If no smoke is visible, and you have no coolant leak, you probably have a very small headgasket leak which isn't visible in the exhaust stream.

 

A blown headgasket can also push coolant out. So do not rule it out.

 

When i had my 05 i had that same sound inside the car. A week later my freeze plug blew out and i had a blown head gasket. The freeze plug blew out twice and i had the water pump replaced 3 times. Seems to be an issue with 05s

 

dont leave out the heater core... im not sure where they are in the car but feel around the carpet under the dash and see if it is wet. also you might be able to smell coolant in the car.

 

it's your head gasket, my car did the same thing,no smoke though,your head gasket could begin to stretch with out smoke.and the head gasket on the evo's are multi-layered so it will not have all the symptoms wright away...