sle2115
NRA LIFE MEMBER
Ok, I posted some time ago that my truck went into the 220 range once, I had no idea why other than it was a warm (not hot) day. Well, yesterday morning, I headed out with my daughter to go teach the kiddies at Camp Heritage about firearms safety and we went to town for breakfast. On the way, it quickly got up to 195 and kept going. My truck RARELY has seen 205 and generally takes forever to see 195. The drive is 5 miles and I was totally unloaded. So we go in, grab a quick breakfast, come out and head to camp. Temp was like 158. By the time I had drive 5 miles toward camp, the temp was 205, by the time I drove the next two miles or so, it rose to 230 where I began idling and coasting as much as I could. I turned onto the road the camp is on and continued to easily drive the 3/4 mile to camp. After making the turn, on a less than good road, the temps fell like a rock, clear back down to 195. This is the second time it has done this.
I am thinking thermostat, but wanted to see what the general consensus was. I also wonder if the rough road "unstuck" the thermostat. I have a new Motorcraft one sitting here from the last time it did this about 6 months ago, so it will be getting changed soon as well as leaking valve cover gaskets and a flush and fill. The coolant is about a year old, but I changed the heater core about 6 months ago for the second time, this time using a Motorcraft one as suggested. Something else that might just be coincidence, both times I was running the heater as yesterday morning was about 50 degrees and my young'en was cold and glass had a nice coating of dew.
So, what do you all think? I am still running the Stant t-stat that I have been running since I bought the truck, going on two years. T stat will be changed this weekend I hope, if time permits. I does it so rarely that I fear I won't know if the problem isn't fixed until I have a problem, but I can't imagine anything else it could be. The heater is not shut off, so coolant flows through the core year round, although that is a project that will be completed sometime soon as well. Nothing like driving a non-A/C truck on a 95 degree day with heat coming out of the heater box...
I am thinking thermostat, but wanted to see what the general consensus was. I also wonder if the rough road "unstuck" the thermostat. I have a new Motorcraft one sitting here from the last time it did this about 6 months ago, so it will be getting changed soon as well as leaking valve cover gaskets and a flush and fill. The coolant is about a year old, but I changed the heater core about 6 months ago for the second time, this time using a Motorcraft one as suggested. Something else that might just be coincidence, both times I was running the heater as yesterday morning was about 50 degrees and my young'en was cold and glass had a nice coating of dew.
So, what do you all think? I am still running the Stant t-stat that I have been running since I bought the truck, going on two years. T stat will be changed this weekend I hope, if time permits. I does it so rarely that I fear I won't know if the problem isn't fixed until I have a problem, but I can't imagine anything else it could be. The heater is not shut off, so coolant flows through the core year round, although that is a project that will be completed sometime soon as well. Nothing like driving a non-A/C truck on a 95 degree day with heat coming out of the heater box...