1983 4X4 22R still over over heating no coolant loss.
 

Changed everything I could think of and still over heating! No coolant loss, coolant does bubble out to reservoir after every drive. Yes I burped the system and flushed it. Needle does not go in red but it is right next to it.

Have you pressure tested your cooling system? I had similar issues when my head gasket started to fail (running a little hot at highway speeds but not actually overheating, no noticeable coolant loss or coolant in oil, ran fine, etc). Eventually HG failure became obvious (after thousands of miles of symptoms previously described) but I think pressure test would have confirmed it in the early stages.

^^ This
Had the same years ago. Minor HG failure between cylinder and coolant passage. Was forcing a small amount of air into the cooling system, forcing coolant into the reservoir bottle until it would overflow (eventually), leading to coolant loss.
It wouldn't overheat, but it was threatening to.

You mind telling me the cost on HG replacement would be?

At a shop? No Idea.
Yourself? Not bad at all, but, depending on how long it's been since other things have been replaced it usually a good time to do a timing kit, oil and water pump replacement. You're going to have it all apart to do it right anyway.
To do all of the above with quality parts $300-$400 ish.

Thanks for the info!

I agree, these guys are steering you in the right direction. You can test for combustion gas in your cooling system with this https://www.napaonline.com/en/p/BK_7001006.

Steer clear of aftermarket head gaskets https://22reperformance.com/22re-gas...ine-gasket-set

Gave up
 

So finally threw in the towel. Dropped off my truck so mechanic can diagnose the heating issue.

What did the mechanic find was the issue?

I'm having an issue with a Yota I bought from a friend. He rebuilt the lower end before I bought it so it has a new head gasket. He had the same strange over heating issue before the lower rebuild.