Question about Chevrolet TrailBlazer
Will have to take the oil pan down, is inside the oil pan. depending on the way the pan sits on the cross member, you may have to take the motor loose from the mounts and jack it up to remove the pan. if u have the 4.2 engine, the oil pump is located under the timing chain cover located on the front of the engine and u have to remove the oil pan in order to remove the cover. This is a big deal (even for dealers mechanics)
Posted on Aug 05, 2010
Diagrams are not available as free downloads.Sometimes local libraries will carry a haynes or chilton manual to check out.National auto parts stores carry them.Sometimes I go there to just look for my situation,they frown on that.If you want to buy one,they are about $20-$25.You can also call a dealer or a couple of shops,someone is usually willing to tell you for free because they want your business.You check transmission fluid with the engine running,after about 5 minutes of warmup.Now to the problem.For overfilling oil,you should not go too far past the recommended full line.It is bad for the gaskets and you may end up burning oil.Checking the oil with the engine running probably will result in a high reading because it is being cycled.As for the oil pump,most seem to be external to the engine.Some I think are internal.The easiest way to figure out where your pump is,follow the hose coming out somewhere near the bottom of the oil pan.The hose will be somewhat wide,one inch or more and will lead to the pump,where it goes in somewhere about mid high to the top of the engine.O2 did you mean oxygen sensor?If you are getting that code,I would at least have it checked out if not replaced.Low oil pressure is a sign of a bad oil pump,it will overheat,and should be avoided driving very far,if at all.the whine with RPM change,is there a specific time that it happens?For example,when it's about to shift,randomly,car hot or cold?If you can please answer that for me,it may offer more information,such as transmission.I would very much like to know that because if it is transmission,there may be no point to fixing the rest,depending on money,necessity or whatever if you know what I mean.Good luck and I hope to hear good news about that whining sound!
Posted on Aug 05, 2010
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Posted on Jan 02, 2017
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