Head gasket or new motor?

DeanY · Post by **DeanY** » 23 Feb 2016, 17:42

Hi all . 07 xc70 with the missing coolant issue. Replaced water pump,hoses,thermostat, coolant cap. I can't find the coolant leek. Top radiator hose gets hard until I release pressure. Car does not over heat,but add coolant light goes on. Does not misfire or have coolant in oil. What gives,anyone else been thru this ? Thanks

Post by **vtl** » 23 Feb 2016, 19:37

When you open expansion tank (not on a running or hot engine), does the level restores?

DeanY · Post by **DeanY** » 23 Feb 2016, 19:40

Yes,coolant rushes in tank. I forgot to add I replaced radiator too.
Maybe I need to bring it to get flushed and a pressurized refill?

Post by **vtl** » 23 Feb 2016, 19:41

That's a gasket.

DeanY · Post by **DeanY** » 23 Feb 2016, 19:44

Even with no compression leak or misfire?

Post by **vtl** » 23 Feb 2016, 19:50

Did you do compression test?

DeanY · Post by **DeanY** » 23 Feb 2016, 19:53

No I haven't. The car runs fine,temp gauge stays in the middle. I

nsjames · Post by **nsjames** » 24 Feb 2016, 09:35

DeanY wrote:Even with no compression leak or misfire?

quite possible.

have the coolant checked for exhaust gas.

https://www.amazon.com/UVIEW-560000-Comb ... B000NPDL76

JudgeRat · Post by **JudgeRat** » 24 Feb 2016, 11:37

^^what he said. Check for exhaust gas in coolant. I had a similar issue when my head gasket went out with an internal leak to cylinder #1 on mine in the past. Not a fun situation.

DeanY · Post by **DeanY** » 24 Feb 2016, 11:46

Thanks for the replies folks.It seems to be a head gasket.
Going to the shop Monday. Anything else I should replace while it's there? Already did timing belt and water pump.
Thanks