Hello, I was told by my mechanic that I have a crank or oil pan leak. He told me that it could be either. If it is the oil pan gasket that needs to be replaced, he would have to pull the motor out and replace the gasket. Any idea how much this costs? If its the crank, stil gotta pull the motor out. My 2000 blazer 4x4 LS has 120,000 miles on it. Never had a major problem with oil leaks before. Now this. Should I use Lucus oil additive to help the problem after every oil change?? Or should I get it fixed? Sould like a lot of work to pull my motor out and replace what needs replacing. Thanks and any help will do.

 

is it leaking from a specific side?

 

Nope, my mechanic did not say anything about which side. He says the oil is from above and tends to go to the lowest point on the motor, which is near the drain plug. I thought my drain plug went bad again. I had it rethreaded about 2 years ago and had a new plug put in. But, all I know is its gonna cost me a lot from what I hear and read. What should I do? Is Lucas oil stablizer okay to use? I have heard bad things about it on the web, bit worried.

 

drain the oil and find where its leaking.Once you found it if its a crack either have it welded or use some JB weld quick set.This stuff hardens fast in 5 minutes or less.Somebody had done that on the previous engine that was in my blazer.
if its the crankseal you have no choice but to pull the engine

 

k,willing to bet its the oil adapter leaking(where oil filter would be if it was 2wd). they leak,and run down to the rear and make it look like a rear seal. its a known problem.

 

First thing I thought of. I'm dealing with this very problem right now.

 

Here is another having an oil leak problem. I have narrowed it down to either the oil pan gasket or the rear main seal.

Both of which are ALOT of work to replace. I just bought a drip pan and park over it now instead of wiping-up the quarter+ size oil spot every morning.

It really is not worth the price to replace either of these gaskets unless it is really dripping alot.

 

Before you guys go pay a bunch of money to have this fixed, look at the lines coming off the oil filter housing. They are notorious for leaking right where the rubber part of the hose connects into the metal part and will make it look like something else is leaking. I think that is kind of what Chris was getting at

 

Well,sorta. honestly from what ive seen the adapter its self(the lines run into) tend to leak more then the orings on the lines themselves. there is a paper gasket and a big oring under the adapter. Big mistake people make too on the lines is overtightening them. they only need be a snug,then a tad more or else you'll rip the oring.