NO it is not. But you do need to change the oil and filter.
its the antifreeze thats what i was afraid of
The water pump will pump coolant(antifreeze & water) through the engine after the thermostat opens up.
The manifold itself could be cracked. I have a 2000 Pathfinder LE with 100k miles and a 3.3. I noticed an antifreeze leak on the right side of the top of the engine. Using a mirror, I found that under the manifold, there was a nice crack.
it could be a head leaking or the intake manifold, if its coming from the very top its most likely the intake manifold gasket
If it is a vortec engine, it is probably the lower intake manifold gasket. In most cases you can smell it when the engine is hot.
If the antifreeze/coolant level in the radiator gets low enough, the engine will over heat. If the engine overheats enough, it could warp the intake manifold requiring a very expensive repair. Do yourelf a favor and get theleak repaired.
ya, especially if you are leaking antifreeze internally or externally. if intake manifold gasket leaks usually have vacuum problem result in "rough engine idle" look for external antifreeze leak at manifold gasket first. then check oil for "milky color" - if antifreeze runs low due to leak = Yes - engine overheat. Dont drive it - you can do a lot more damage if you do.
Antifreeze helps the engine run cooler in the hot months and prevents the coolant from freezing in cold weather.
need find out where you are losing antifreeze = look for leaks at radiator hoses etc first, then intake manifold top side of engine along sides of engine as well. Be careful if engine is hot .then lastly check you engine oil in case there is an internal antifreeze leak due to faulty intake manifold or head gasket. if not found have a pressure test done on the cooling system
A gm 3.8 l v6 or 3800 cc engine cannot have antifreeze in exhaust without first getting into the engine. If its getting into the exhaust it may be entering the cumbustion chambers through a damaged cylinder head or head gasket. Also this engine depending on the model year may have issues with the intake manifold gasket, that can cause antifreeze to leak into the engine oil.
Most likely cause is the intake manifold gasket-antifreeze will usually leak down the back of the engine and drip off of the starter or somewhere in that area.
Remove engine cover to gain access. Remove two bolts that hold housing to manifold on the front of the engine. Coolant will leak out when the housing on the end of the top radiator hose is lifted off manifold. Wipe area clean with a rag, make sure the old o ring is not stuck on manifold. Install new o ring and thermostat making sure thermostat is facing the right way, should be marked on one side RAD which means towards radiator or the front of the car. Arched part of thermostat is up and spring side down towards the engine. Tighten two bolts evenly to secure housing to manifold carefully so as not to crack it. Fill antifreeze 50/50 antifreeze to water ratio and start engine check for leaks, tighten bolts if needed. Re-install engine cover. Check antifreeze levels when engine cools just to be sure and plastic reservoir should be half full with antifreeze.