could a bad turbo cause coolant to back up in the overflow?!?!

[jjaycxj]

98 tsi bone stock just got the head professionally rebuilt 3 weeks ago. now i have a bad turbo i have been driving on it for about 3 weeks now. i noticed some coolant leaking after i came home from the store and looked under the hood and saw the coolant overflow was full. so i let it cool and it was back to normal. what could cause this? i had a new thermostat and Pcv valve put in at the same time the head was done. can it just be my bad turbo doing this i barely drive it and when i do i never hit boost. so im confused

 

[BurrowZ]

No?!?!

No.

However, a bad headgasket will push coolant. If you don't want to/know how to do a leakdown test to see if it really is bad then you could try replacing the thermostat with an OEM one assuming you put a parts store one in. And you could replace your radiator cap with a 13lb one. No higher.

 

[Breezio69]

Try changing cap and looking for leaks since the head has been off so recently... also could have been a bad head gasket install

 

[NHerron]

You can pull the spark plugs and look for any that are super clean, like they have been steam-cleaned.

http://www.dsmtuners.com/forums/art...440201-10-coolant-system-pressure-tester.html

Did you notice any abnormal coolant temperatures?

 

[jjaycxj]

I haven't noticed any overheating. I just got the thermostat replaced when I got the head done with an oem one. The head gasket on is an oem mls hg with arp head studs literally done 3 weeks ago by a reputable shop in the Chicagoland area.

 

[NHerron]

Was the deck surfaces correctly prepped for an MLS gasket? MLS gasket can really be a pain to seal and the key to sealing is all in preparation. It's not like a composite that can seal up imperfections.

Pull the plugs to look for a steam cleaned cylinder

 

[jjaycxj]

Was the deck surfaces correctly prepped for an MLS gasket? MLS gasket can really be a pain to seal and the key to sealing is all in preparation. It's not like a composite that can seal up imperfections.

Pull the plugs to look for a steam cleaned cylinder

Yes the head Was done correctly it got the works done at the machine shop ### of how sensitive the mls hg is. The last time I pulled the plugs they looked fine I've been driving it and it drives fine just the turbo is blown

 

[BurrowZ]

Was the block resurfaced properly for the MLS headgasket?

 

[jjaycxj]

Also on a side note will a 16g install kit work with a 14b? I looked around and I haven't really found a forsure answer and I wanna make sure before buying the install kit

Was the block resurfaced properly for the MLS headgasket?

I believe so im going to call the shop Tommrow as I'm not very happy with how this has turned out

 

[BurrowZ]

Also on a side note will a 16g install kit work with a 14b? I looked around and I haven't really found a forsure answer and I wanna make sure before buying the install kit

LIES.

Yes, it will work.

 

[BoostedPhoenix]

Are you adding coolant or just noticed the resevoir was full ?

 

[jjaycxj]

Are you adding coolant or just noticed the resevoir was full ?

Yes ### the shop told me to look at my oil and coolant levels as the turbo is bad so i parked her after driving opened the hood and saw the overflow was almost to the top. Took the rad cap off and ran it and saw no bubbles of any kind

 

[herms99gst]

It sounds like.your headgasket isn't sealing but if you Dont have the means of being for sure i would just take it to a shop and have them pressure test it. You could also try bleeding your cooling system....wouldnt hurt.

 

[BoostedPhoenix]

Yes ### the shop told me to look at my oil and coolant levels as the turbo is bad so i parked her after driving opened the hood and saw the overflow was almost to the top. Took the rad cap off and ran it and saw no bubbles of any kind

Which is it, adding coolant as in its pouring on the ground after driving ? Or just that the resevoir was full and puked some out ?

The resevoir will be high or low depending on engine temperature, thus the "normal" range of lines on the bottle. If its not over heating then first indication would be the pressure cap if its pushing it out, unless it was overfull to begin with.

The CHRA of the turbo would have to be cracked to influence any coolant related problems. Oil on the other hand will dissappear very quickly into the hot or cold side of your turbo if its failed.

Pressure cap would be most likely, or one hell of a blockage in the cooling system to cause enough pressure to push out, but even then you would have over heating problems.

 

[jjaycxj]

Since it burns coolant and oil I check them everyday and if there low I fill them. The coolant was way over the fill line and almost to the top when I checked. I checked it right after I turned the car off

 

[Marc91utdsm]

How far do you drive it? When my red 1g was pissin coolant out of the overflow, it wouldn't ever piss it all out and overheat when i drove around town. I would notice little puddles on the ground and could smell the coolant. When i would drive farther maybe 40 or 50 miles then it would lose enough to overheat. It was indeed my headgasket not sealing, and leaking pressure and cumbustion gasses into the coolant system.

 

[Calan]

Since it burns coolant ...

Wait. Is it burning it, or pushing it out the overflow? There is a big difference there.

If it's just pushing it out of the overflow, then this:

Pressure cap would be most likely...

It's been said a couple of times now, but a $6 cap is both likely and easy enough to try.

Next stop would be a possible head gasket issue. Do a leak-down test or coolant pressure test to find out for sure.

 

[jjaycxj]

Wait. Is it burning it, or pushing it out the overflow? There is a big difference there.

If it's just pushing it out of the overflow, then this:



It's been said a couple of times now, but a $6 cap is both likely and easy enough to try.

Next stop would be a possible head gasket issue. Do a leak-down test or coolant pressure test to find out for sure.

The head and hg are 3 weeks old professionally rebuilt by a well known shop in the chicagoland area. My t25 has gone bad so it's burns
a little coolant and oil and today I saw some coolant spilling out of my car after I got back from the store and I opened up the hood and I saw the overflow had way way to much coolant.

 

[Breezio69]

The head and hg are 3 weeks old professionally rebuilt by a well known shop in the chicagoland area. My t25 has gone bad so it's burns
a little coolant and oil and today I saw some coolant spilling out of my car after I got back from the store and I opened up the hood and I saw the overflow had way way to much coolant.

It sounds like you need to just fix one problem at a time. If the turbo is known to be bad why drive it? If its just "leaky" right now and decides to "blow out" completely you could have more problems on your hands than a new turbo.


Id be all over getting the turbo fixed before you start leading people to tell you to take the car back to a shop, and potentially piss off a mechanic that did a correct job.

As stated 4 or 5 times now, get a cap, see if it helps. If not, drop the coin on a turbo and see what it does...

 

[jjaycxj]

It sounds like you need to just fix one problem at a time. If the turbo is known to be bad why drive it? If its just "leaky" right now and decides to "blow out" completely you could have more problems on your hands than a new turbo.


Id be all over getting the turbo fixed before you start leading people to tell you to take the car back to a shop, and potentially piss off a mechanic that did a correct job.

As stated 4 or 5 times now, get a cap, see if it helps. If not, drop the coin on a turbo and see what it does...

I've got a new turbo on the way I barely barely drive it just when I need to. I will look into buying a new cap il go to Mitsubishi Tommrow

 

[Calan]

I will look into buying a new cap il go to Mitsubishi Tommrow

Just pick one up at Autozone or O'Reillys. It's just a radiator cap.

 

[jjaycxj]

I like oem parts