Hi,

My Chevy g30 5.7l V8 1993 motorhome becomes very hot under the front bonnet.
I drive for 15-20 minutes and it becomes very hot under the hood.
Just completed flushing the radiator coolant and filled it back with new one.

Don't think the hot temperature is going any where.

Would like to get some opinions about the avg operating temperature under the front bonnet for 1993 Chevy G30 (RV)

Please note i am not a mechanic. Just trying to learn some thing about this.

Thanks.

 

coolant temp should be 80 to 100*C
no idea what the underhood air temp should be

 

When replacing the coolant did you burp the system ?
Another possibility is a bad fan clutch see for tips.
Also like tech2 said... make sure your coolant temp is in the normal range. It could point to a bad thermostat.

 

Thanks for responding.
The upper radiator hose is very hot and lower one much lower heat compared to upper hose. So i am assuming the thermostat is good. Correct me if i am wrong.
The engine temperature never increased more than 1/4 of total guage. I think it starts with 100.

How to measure the coolant temperature?

 

Temp gauge on dash is coolant temp. They're not always that accurate.

 

Wow all these days I was assuming that’s engine temperature. I stored it in an storage.. will update about my findings once I take it out. Thanks.