Question about 1998 Chevrolet Tahoe
Before you start to pull the crank out, check your oil pressure via an independent gage. Then if you have around 25-30 psi gage, drain some oil out. Put a quart of Marvel Mystery Oil in and top off . Change oil filter. Drive the truck for a few miles. Change the oil and filter. This should start to break away the sludge that is built up.
You may need to do this up to 10 times before you can go 3000 miles on an oil change.
Now if the oil pressure is extremely low, yes you can change the crank in chassis. I have done it in a pinch before. It is much easier to pull the engine and put a crank in. If the crank is bad, you also have a rod that is bad. You also need to clean all the parts or emminent failure will occur.
I would also change the knock sensors on your truck as well. Hope this helps. Rate me high.
Posted on Feb 02, 2009
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Posted on Jan 02, 2017
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