Construct your sentences in a manner that we can read, this means using commas where needed, as well as capitalizing the beginning of your sentences and ending with a period. It's not knocking your sentence construction, it's helping us understand what you're trying to say clearly.
The temperature sensor on 2.5L engines is on the drivers side of the engine block at the back of the head, it has a green wire coming off of it.
Your fan shroud is absolutely going to effect engine operation temperature. If the fan were butted up against the radiator it wouldn't be an issue, but because the fan is so far back into the engine back, it relies on that fan shroud to funnel the air through the radiator. Without it you will very likely overheat on the trail. You can pick one up at a Jeep junkyard for next to nothing, or if you have all the pieces you can try to repair it by drilling holes and using some electrical wire.