1996 2.3 5 speed.
While sitting idling or driving down the road at 70-80, when running the ac the truck gets really hot.
It’s never “overheated”, but that’s also because I shut the ac off before it does. Normal coolant temp is in the bottom 1/3 of the normal operating part of the gauge. A couple of times when I wasn’t paying attention it got to the top hash mark before I shut off the ac and pulled the clutch in and throttling the truck up. (Take away the load and keep water/air flow still happening.)
I had a 93 with the same set up I put a v6 radiator into while living in Florida. (It was all the junk yard had that would match up hose locations. The 3 other 2.3 radiators I had to return because they sprung leaks.) It never overheated and would often take a long while to warm up.
My question is this: What could be causing this?
I’m not saying the fan clutch isn’t bad, but wouldn’t the issue go away at 70-80?
Thermostat has already been replaced.
Radiator could be plugged but I doubt it. I ran water and dishwasher soap through it first. Then rad some type of radiator cleaner through it. Then soap water, then flushed it for about an hour with a garden hose hooked up to upper rad hose.
I don’t see how it could be the water pump if normal driving doesn’t cause issues.
While sitting idling or driving down the road at 70-80, when running the ac the truck gets really hot.
It’s never “overheated”, but that’s also because I shut the ac off before it does. Normal coolant temp is in the bottom 1/3 of the normal operating part of the gauge. A couple of times when I wasn’t paying attention it got to the top hash mark before I shut off the ac and pulled the clutch in and throttling the truck up. (Take away the load and keep water/air flow still happening.)
I had a 93 with the same set up I put a v6 radiator into while living in Florida. (It was all the junk yard had that would match up hose locations. The 3 other 2.3 radiators I had to return because they sprung leaks.) It never overheated and would often take a long while to warm up.
My question is this: What could be causing this?
I’m not saying the fan clutch isn’t bad, but wouldn’t the issue go away at 70-80?
Thermostat has already been replaced.
Radiator could be plugged but I doubt it. I ran water and dishwasher soap through it first. Then rad some type of radiator cleaner through it. Then soap water, then flushed it for about an hour with a garden hose hooked up to upper rad hose.
I don’t see how it could be the water pump if normal driving doesn’t cause issues.
