You ask what happened and why they are recommending it.
The 3400 motors aren't the greatest as the have an intake manifold gasket problem that leaks causing a variety of problems, some simple some fatal.
Why did the oil come out? Did you drive it afterwards?
More info is needed.
If you do need one, I strongly recommend a Jasper Remanufactured engine. Good warranty, great product.
Tuesday, April 24th, 2007 AT 9:05 PM