HELP! White Gunk in Coolant tank.

[deepblonde]

Originally Posted by Isosunrise91

Update: coolant clearly leaking from driver side tire area. More so leaking directly under car close to the oil drain plug area...

Any updates? What originally caused the issue? Did you have oil in your cooling system? Where was the oil from?

[Isosunrise91]

Update:


hole/tare in hose going from water pump to the head of the engine. Per the indy this is not something that they ever replace. I did have a major oil leak prior to this repair months earlier and they believe the hose could have had lots of hot oil burning this "hole" but are not certain.

White gunk in the expansion tank was deemed as normal. Most likely residual oil from the first messy job. Lots of coolant/oil mix in the coolant system.

Coolant system flushed again, Hose from pump to head replaced, Coolant filled. $664 at my indy.

Cant keep up with this truck. I can't imagine getting a pre-LCI model as they are apparently prone to same issues + more. Ill tell you this, previous owner did little to no maintenance.

[deepblonde]

Originally Posted by Isosunrise91

Update:


hole/tare in hose going from water pump to the head of the engine. Per the indy this is not something that they ever replace. I did have a major oil leak prior to this repair months earlier and they believe the hose could have had lots of hot oil burning this "hole" but are not certain.

White gunk in the expansion tank was deemed as normal. Most likely residual oil from the first messy job. Lots of coolant/oil mix in the coolant system.

Coolant system flushed again, Hose from pump to head replaced, Coolant filled. $664 at my indy.

Cant keep up with this truck. I can't imagine getting a pre-LCI model as they are apparently prone to same issues + more. Ill tell you this, previous owner did little to no maintenance.

If you have oil in cooling system it isn’t coming from an leak burning a hole in a hose - the cooling system is under pressure , it would not allow oil to enter - are there any symptoms or issues? Transmission any coolant contamination?

[Isosunrise91]

Originally Posted by deepblonde

If you have oil in cooling system it isn’t coming from an leak burning a hole in a hose - the cooling system is under pressure , it would not allow oil to enter - are there any symptoms or issues? Transmission any coolant contamination?

There is not oil in cooling system currently.

In November I had a major oil/coolant mixture in the coolant expansion tank only. Oil was covered on the drive belt as well. This was due to Oil filter housing gasket gone bad.

Issue was resolved.

Hose now going from pump to head was also covered on the exterior with old oil. They are not sure why the hose would have a hole in it could have been from hot oil from previous mess dripping over the hose. Not to sure

[isarkisov]

Originally Posted by Isosunrise91

I could not tell you off hand. I had an Indy do all the work. They stressed how many time’s they had to flush lines because of the initial oil contamination from the bad oil filter house gasket leak.. to put it into perspective my belt was soaked in oil too.. was a long time coming from previous owner I jus trust have missed it. Frankly I can’t imagine anyone using numerous gallons of distilled water by hand to flush.. wouldn’t be shocked if at first it was regular water..

Any suggestions? Car runs decent. No change in behavior

How did they flush the cooling system? Oil contamination has to be flushed with a degreaser, otherwise oil will stick to the walls and won't flush out. Are you sure this is not oil? I would start the car with the coolant tank off and wait for coolant to reach 100F+ to see if the gunk melts. Then I would add some coolant to overfill the tank and see if oil starts coming out. If you see oil coming out then your system either wasn't properly flushed or they used a degreaser but didn't fully flush it out or you still have oil leaking into coolant.