First id like to say I have no idea if this is the right place to ask these questions. Ok, so I just got a 1990 mighty max with the 2.4 engine. It had sat for almost six years, so the first thing I did was drop the tank and clean it out. (FYI the soaking in viniger trick seems to work super well) replaced fuel filter, oil and filter, air filter, and antifreeze. Then I replaced the plugs and wires. It fired up and seemed to work great. I took it for a short drive and have noticed a couple things I can't seem to figure out.
First. It idles fine at first,but after I press the gas then let off it idles really high. No tac but if I had to guess I'd say around 2k.
Second. It doesn't seem to ever warm up.
Could this be a thermostat issue? I ordered a thermostat and gaskets and they should be installed by the middle of next week.