I have a '95 Suburban (K2500) with 120k miles. I have replaced the water pump, had the system pressure tested and flushed. The fan works. I am not losing any coolant. The oil does not have any water in it, the water does not have any oil in it. The darn thing gets so hot that you can barely open the hood or touch any of the internal parts without getting burned. I cannot get my arm down to check the lower radiator hose it is so hot. Last night I changed the oil to Mobil 1 full synthetic High Mileage to see if that would help. The temp gauge still reads 210 plus. My oil pressure does not stay the same, it bounces from 40 to 80 psi. When I pulled the dip stick to check the oil level, smoke came out of the dip stick tube. The oil that I put in last night still looks new and fresh. My questions are:
- Should this truck run that hot?
- How do I check the oil pump to see if it is working?
- How do I get this truck to run cooler?
Thanks in advance for any help.