My 2004 kia's engine pops and stalls before starting. Antifreeze is leaking somewhere that can not be seen. Exhaust smells like antifreeze

smell the exhaust after you fill it up and see if it's burning in the engine if you smell the antifreeze it's going into the combustion chambers it could be a leaking gasket or a cracked head or engine block if not look around the radiator/hoses or the weep hole under the water pump your leaking from somewhere if you don't smell it in the exhaust

If you have been (revving the car/racing/accident/excessive speeding) you will smell something similar to burning oil from the engine, also if it has been more than 10,000kms (6000 mile) since last oil change you should get it serviced.

To me antifreeze smells like cat wee but look for oil leaking from there on to the exhaust. I would assume something is leaking on to the exhaust then burning off

have a cooling system pressure test done to see if there is a leak

If you "smell" the exhaust it will smell sweet if it has antifreeze in it. If that's the case then you might have bad head gasket(s) or cracked head(s) or block. If in fact it is antifreeze in the exhaust, a "leak down" test will help diagnose this. I would take it to a shop that you trust for further testing.

Sounds like head gasket needs replaced or worse one of the heads is cracked leaking antifreeze into cylinder burning out the exhaust, would advise not to continue running as you can lock up the engine if antifreeze is leaking into the engine oil. It will seize the bearings blowing your engine.

thermastat problem? Antifreeze not circulating properly? Radiator needs flushing?

Hi, sounds like the headgasket as failed and is leaking into the water jacket in the cylinder head. with the engine running remove top off the reservoir and see if you can smell exhaust fumes coming from the bottle, there could be bubbles coming up aswell. if so replace the headgasket, good luck.

check the coolant level to see if it has dropped.Then look under the engine,for any leaks.Look for pools of coolant on top of the engine,or run down on the sides of the engine.Then look for radiator hoses,ans heater hoses that are leaking.If you are loosing antifreeze ,and you are sure the coolant is going somewhere,you may sill have a head,or head gasket,that are bad.If it has not been long before the head change,then the antifreeze may be still present in the exhaust,or on the engine,so you may have to wait a little longer for smell to disapate.Cleaning the engine can help.

blue smoke out of 1.8 turbo its allways bad oil seal inside turbo.need new turbo or rebuild OEM. with 24 years experience working with vw never seen single headhasket go bad on 1.8 turbo engines.blue smoke its 100% turbo every time