That's unlikely. More likely is that you have an air pocket from the draining procedure. You should fill your radiator as high as you can after draining it, then, with the cap still off, start the engine and continue to fill as it runs. Have a helper keep the engine at around 1500 RPM and have the heat on. When the engine gets warm enough, the thermostat will open, and you may notice a drop in the coolant level. Keep filling the radiator until it will take no more. Then, put the cap on, make sure the overflow reservoir is filled, and turn off the engine. The cooling down process will draw in more coolant if needed.
250 views
Usually answered in minutes!
This model engine does only has a cap on the surge tank, none on the radiator itself. I filled it above the fill cold line and it's about at the cold line now. I ran it with the cap loose, let it get hot and I tightened it. Still no hot air and it runs hot. I'm thinking air pocket also since I had not issues at all before this. I'll try filling the tank up and trying it. I'm also may just start over and drain then fill as it runs.
×