High rev, slow on uphill and weak, oil light on

Let's start with a couple things you mentioned. First, when you say you checked the pressure, was this a compression test?

https://www.2carpros.com/articles/how-to-test-engine-compression

If so, what were the readings?

Next the oil light coming on unless you are revving the engine is a sign of low pressure and the pump is most likely the issue.

https://www.2carpros.com/articles/high-or-low-engine-oil-pressure

However, this most likely will not cause the low power issue that you are seeing. Here is a guide that will help with this:

https://www.2carpros.com/articles/high-or-low-engine-oil-pressure

What I am concerned about is that the motor is starting to lock up due to low oil pressure. So the first thing we need to do is change the oil and drain all the old oil through a coffee filter so that you can inspect for oil. You will want to capture the oil in a clean pan and then start pouring it slowly through a filter so that you can see how much oil is there, or let the oil settle in a pan and then pour off the oil slowly so you can see what is at the bottom of the pan.

https://www.2carpros.com/articles/how-to-change-engine-oil-and-filter

Let us know what you find with this and we can go from there. Thanks

Thank you I will inform the group on how it went... I need to do he compression test on all valves again

As for the oil I will drain it and keep an eye on the sludge once drained... Now in the gasket cover where is this oil filter thingy... I got to have a look at it but how do I find it....

Anyway I will follow these instructions as describe and will get back to you

Thank you once again.

Hi ABDUL TOUFFIE
we can help with your issues, first we will start from the begging, and move forward, check engine oil level report back if ok, if not adjust to manufacture level, second scan for any stored codes (see link)

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Let us know what happens and please upload pictures or videos of the problem. let us know if engine was removed for repair and take a picture of the leak area showing. Please run down these guides and report back. Cheers Nick