tempature

So last year I noticed my coolant gauge wouldn’t really ever budge. It’d move if I let my truck idle for awhile but not by much. Just barley touch the lower part of the C. Once the summer came I noticed if I used my ac the gauge would start rising incredibly fast. I never actually let my ac run...

I have a 2000 4.0sohc 182xxx miles when its cold it idles at 2500rpm then drops under 500 and stalls. It feels like its mising and runs like poop untill it gets up to temp then it idles fine. I think it might be dirty sensors? I bought a can of crc maf cleaner and cleaned the maf what other...