Oil leak 1995 k1500 5.7 tbi

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Kylebg94

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Ok, so the other might I drove home from work. I had a strange smell when I let down the windows. Turns out it was from oil burning on the exhaust. I noticed oil smeared everywhere. But it was particularly in the area of the spark in the front on the driver side. The two spark plug coils wires. Had oil on the outside. However when I pulled the spark plugs. They were clean and dry on the other side. There was no oil in the spark plug holes. Because there was so much oil. I cleaned it this morning with a cloth and brake cleaner. I ran the truck for awhile to see where the oil was coming from. However I couldn't pin point it exactly. The valve cover appeared dry all around the areas I could access easily.. The spark plug holes were dry. But for some reason I had oil all over the area of the first two spark plugs again. The heat shield was soaked in oil. And in one direct spot. I keep getting a stream of oil dripping down on that part of the exhaust. That is right below the second spark plug from the front end of the truck. The sensor and the two coil wires both get soaked in oil in that area. However the back two plug area. Is as dry as a bone. When I look under the truck up through the area where the oil filter sits. There is a smeared area where it appears oil has been flowing down. The oil filter itself, is completely dry. But below you will see oil drops on different parts of the truck. Likely do to being blown everywhere by the wind. I was wondering, should I consider using a dye to trace the oil leak in this truck? And ideas where oil leaks on these trucks that I should consider checking?
 
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Komet

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I use Fel-Pro Permadry blue silicone valve cover gaskets, no leaks so far going 4+ years on the L98 in my car. I clean the gunk out of the corners of the valve cover until it's smooth metal again, and then make sure they're as flat and true as possible. Also use a razor blade on the head mating surface, put a rag in the inside to block gunk falling in. The fresh gaskets should slightly friction fit in dry. Don't overtighten, they just want a little squish pressure.
 

Schurkey

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Because there was so much oil. I cleaned it this morning with a cloth and brake cleaner. I ran the truck for awhile to see where the oil was coming from... ...I keep getting a stream of oil dripping down on that part of the exhaust. That is right below the second spark plug from the front end of the truck. The sensor and the two coil wires both get soaked in oil in that area.
A "stream" of oil can't be that hard to track down.

If it's under the spark plugs, it's likely head gasket or cracked casting.
 

Kylebg94

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A "stream" of oil can't be that hard to track down.

If it's under the spark plugs, it's likely head gasket or cracked casting.
I had oil all over the engine bay right side. Drips and smudges of it. Likely from driving 60 to 70mph for awhile with a leak. I took some brake cleaner, put it on a cloth. And wiped every bit of oil I could up. To try and figure out where it was coming from. I'd like you to try to find an oil leak. With all of the oil I had to clean up. You'd probably wouldn't until you did what I did. I figured it was coming from the valve cover because I happen to check it. And noticed a small smudge, about a half inch. That appeared to be flowing down. Likely the heat was burning the oil away. Is what I didn't see it before when I checked it. From all of the oil down below, near the exhaust manifold area. I feared it was a intake gasket leak. But I couldn't see any oil in the area of the intake leaking. The drip in the area of the valve cover I just happen to see smudged. I think confirms where it's coming from.
 

thinger2

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Ok, so the other might I drove home from work. I had a strange smell when I let down the windows. Turns out it was from oil burning on the exhaust. I noticed oil smeared everywhere. But it was particularly in the area of the spark in the front on the driver side. The two spark plug coils wires. Had oil on the outside. However when I pulled the spark plugs. They were clean and dry on the other side. There was no oil in the spark plug holes. Because there was so much oil. I cleaned it this morning with a cloth and brake cleaner. I ran the truck for awhile to see where the oil was coming from. However I couldn't pin point it exactly. The valve cover appeared dry all around the areas I could access easily.. The spark plug holes were dry. But for some reason I had oil all over the area of the first two spark plugs again. The heat shield was soaked in oil. And in one direct spot. I keep getting a stream of oil dripping down on that part of the exhaust. That is right below the second spark plug from the front end of the truck. The sensor and the two coil wires both get soaked in oil in that area. However the back two plug area. Is as dry as a bone. When I look under the truck up through the area where the oil filter sits. There is a smeared area where it appears oil has been flowing down. The oil filter itself, is completely dry. But below you will see oil drops on different parts of the truck. Likely do to being blown everywhere by the wind. I was wondering, should I consider using a dye to trace the oil leak in this truck? And ideas where oil leaks on these trucks that I should consider checking?
Is this an auto trans with the factory oil cooler?
You may have a leak at the oil cooler fitting in the radiator that is blowing oil.
 
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