I have a 1983 Ford F-100 with the 4.9L (300 straight 6) with a carborator.
My oil pressure has been up and down, and I've noticed the engine seems to be running a little rougher. The other day I noticed a small oil leak coming from my valve cover. Yesterday, I replaced the valve cover gasket and at the back cylinder where the PCV valve is located and found a substance that was yellow mustard color and consistency. When I smelled it, it smelled like oil. I also noticed the same thing in my oil cap, although it was not on that end of the valve cover.
I replaced the valve cover gasket, oil filter, and changed the oil, cleaned the cover as well as the rocker arms. Drove it today, oil pressure spiked about a 1/2 mile away, and the truck died at a stop light. I tried to crank it and it turned over, but wouldn't catch. I gave it a little gas and could tell it was trying to catch. I let it sit for 5-10 minutes, tried to crank it and floored the gas at the same time. It fired up and I drove it the rest of the way to work (6 miles) with the oil pressure staying at normal.
What's going on?
Thursday, December 9th, 2010 AT 4:53 PM