NewShockerGuy
Member
- Joined
- Aug 12, 2014
- Messages
- 32
- Reaction score
- 1
- Points
- 8
- Location
- NOVA, DC
- Vehicle Year
- 2001
- Make / Model
- Ford
- Engine Size
- 2.3
- Transmission
- Automatic
Have a bit of a weird issue/quirk going on...
I have an ultra gauge in the truck so I can monitor various things via the OBDii port. Engine temp is one of them. Since I have a 2001 2.3L autoit has a cylinder head temperature sensor rather than an engine coolant temp sensor. Temp will read higher. It reads about 220’ F which is normal.
What I can’t understand is depending on the drive. Normally coming home, then temp will drop to about 170’ F after I am more than half way home (40-minute drive). It will sit there for about 10 minutes or so then eventually come back up to normal temp at 220’F. I have replaced the electronic thermostat thinking that was the cause. Still proceeds to do the same finicky behavior. I changed out the cylinder head temp sensor yesterday and today still experience the drop, then eventually come back to temp. Coolant bottle isn’t low, and new degauss bottle, cap, and radiator all replaced with in a year. Everything is OEM Motorcraft.
Not sure what else to check so looking for any advice. I have zero check engine lights/codes and zero pending codes. I will get CEL if I unplug the thermostat sensor so I know the parts are working correctly. Truck gets up to temp fine, blows heat. Blows cold air when AC is on. It never goes higher and it doesn't spike/overheat. No clue on this weird behavior however. This doesn't happen going to work for some reason, normally only coming home from work.
For some reason I want to say it's some type of electrical thing going on but I really don't know. With no codes being present and the truck drives fine it's hard to figure out.
Thanks for any help.
-Nigel
I have an ultra gauge in the truck so I can monitor various things via the OBDii port. Engine temp is one of them. Since I have a 2001 2.3L autoit has a cylinder head temperature sensor rather than an engine coolant temp sensor. Temp will read higher. It reads about 220’ F which is normal.
What I can’t understand is depending on the drive. Normally coming home, then temp will drop to about 170’ F after I am more than half way home (40-minute drive). It will sit there for about 10 minutes or so then eventually come back up to normal temp at 220’F. I have replaced the electronic thermostat thinking that was the cause. Still proceeds to do the same finicky behavior. I changed out the cylinder head temp sensor yesterday and today still experience the drop, then eventually come back to temp. Coolant bottle isn’t low, and new degauss bottle, cap, and radiator all replaced with in a year. Everything is OEM Motorcraft.
Not sure what else to check so looking for any advice. I have zero check engine lights/codes and zero pending codes. I will get CEL if I unplug the thermostat sensor so I know the parts are working correctly. Truck gets up to temp fine, blows heat. Blows cold air when AC is on. It never goes higher and it doesn't spike/overheat. No clue on this weird behavior however. This doesn't happen going to work for some reason, normally only coming home from work.
For some reason I want to say it's some type of electrical thing going on but I really don't know. With no codes being present and the truck drives fine it's hard to figure out.
Thanks for any help.
-Nigel