Scott B.
Explorer Addict
- Joined
- February 15, 1999
- Messages
- 2,822
- Reaction score
- 28
- City, State
- GA
- Year, Model & Trim Level
- '93 Ranger XLT
Hello All,
While on the last phase of my recent cross country adventure, my engine decided it didn't want to come up to temperature. It warms up to the normal range, staying around the "N", but never going above it.
Looks like the thermostat is stuck open, right? As a test, I replaced the thermostat with a known good one (but not a new one.) Engine gets a few degrees warmer, but not significantly warmer. I replaced the radiator cap with a new one, knowing this probably wouldn't change anything. It didn't.
Any suggestions or ideas?
I flush and replace the coolant and thermostat every 15,000 miles (currently using Prestone and distilled water), the radiator cap every 30,000 or so miles. I still have the original water pump (with 160,000 miles on it), and there appear to be no leaks. The coolant level in the overflow tank does slowly drop (but with this many miles on the engine, this is expected)
While on the last phase of my recent cross country adventure, my engine decided it didn't want to come up to temperature. It warms up to the normal range, staying around the "N", but never going above it.
Looks like the thermostat is stuck open, right? As a test, I replaced the thermostat with a known good one (but not a new one.) Engine gets a few degrees warmer, but not significantly warmer. I replaced the radiator cap with a new one, knowing this probably wouldn't change anything. It didn't.
Any suggestions or ideas?
I flush and replace the coolant and thermostat every 15,000 miles (currently using Prestone and distilled water), the radiator cap every 30,000 or so miles. I still have the original water pump (with 160,000 miles on it), and there appear to be no leaks. The coolant level in the overflow tank does slowly drop (but with this many miles on the engine, this is expected)