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The Nissan Altima is a mid-size automobile manufactured by Nissan, and is arguably a continuation of the Nissan Bluebird line, which began in 1957.

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Why is there coolant in cylinder and valve cover 2005 Nissan Altima

Hello guys this is my first question and I'm gonna be as informative as I can be...

1. Did a engine overhaul on my 2005 Nissan altima which has 155000miles on her, by overhaul i mean replacing head gasket, valve cover gasket, timing chain, radiator, spark plugs, engine mounts, cam shaft sensor, crank sensor and the coolant temperature sensor.

2. Car runs beautifully after all this but come 5 or 6 days later, bare in mind I barely run this car it only runs like 3 miles in the morning and 3 miles in the evening and that's it, it begins to hard start and sometimes I have to crank it twice and hold it there for like 7secs each crank and gas the pedal to make it start.

3. Carried it to the mechanic twice for this same hard start problem which he fixes by replacing the spark plugs with new better iridium ones.

4. I tried to start it and it doesn't wanna start, the engine just swings and swings, no white smoke no black smoke whatsoever is coming out the exhaust. I took off the engine oil cap and noticed it had a milkshake like texture on the bottom of the oil cap so I immediately checked my engine oil dip stick but the oil seems fine no milkshake texture to it. I grabbed some tools and took out my sparkplug and noticed they are moist wet with coolant so I rev the engine while all spark plugs is out to let the coolant in the cylinder blow out, i reinsert my spark plugs and coil and start the engine and it started beautifully. This is what was causing it to hard start. Now that I knew what was causing it not to start kept running the car like this until it hard started on me again.

5. So my question is why is there coolant in the cylinders and in the valve cover but not in the engine? Could it be a bad head gasket job? I really don't have the money to do that again. Please bare in mind to Everytime coolant goes in the cylinders which only happen twice so far...I check the engine oil dip stick to see if cool and is mixing down there but still it shows that everything is good...it's only in the cylinder and probably in the valve cover since it showed milkshake like texture on the bottom of the valve cover cap( engine oil cap).

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2个回答

When you changed the head gasket, did you make sure that the block surface was completely clean and that the head surface was completely clean? Also if you only travel such small distances why change the head gasket if it wasn't causing any problems? Or your head maybe warped and is causing just enough of a gap to create a small leak but not enough to cause a large leak.

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Sm_vulkus it is indeed a very small leak...got it checked today and it's indeed a small leak from the head gasket...the head was resurfaced and checked for compression and it passed both test...so no crack in head...and yes both the surface was cleaned thoroughly. Guess this topic can be closed.

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So where did the leak coming from and how did you fix it ..I have the same problem

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