Ok I am going to start at the beginning and let you know how this has started to drive me nuts.
I was heading out of town Thrusday night when the A/C stopped working in the truck, I also noticed the temp gauge at almost the highest point in the normal zone. I pulled over and shut the truck off and popped the hood. I found the engine to be about normal, not super hot like I planned. I sat for maybe 5 mins and then it was back to normal and headed back to my buddies shop, by the time I got there again the gauge was at it highest point in the normal zone. I put the scanner on it and ran the data on it. the coolant temp was 106 degrees and the head temp was reading 200 degrees. We had a look at it and he came up with changing out the CHT sensor(cylinder head temp sender) I did this test drove and it seemed fine. Next day I was out and towing my smaller trailer everything was good first thing in the morning then it would climb at lights while stopped and then go down once I drove. I swapped out the thermostat and test drove last night everything seemed fine, I even let it idle was I washed it and it was in the Normal zone no problems. This morning I headed out of town again(heading to the palce I did not make it Thursday night) and everything was fine thru town(30min drive) I was on the HWY for 45min to an hour then the gauge climbs up shuts down the A/C the SES light is now on and the oil/water temp light in the upper left corner of my cluster. The SES light was code P01289 on my reader it comes up as a undefined code? I cleared this but the red oil/temp light is on and will ot go out. I am going nuts trying to get this fixed to many this happening right now so I dont get to work on this until about 9 or 10 every night. So frsterated and sleepy. Got any clues to my problem? My truck is a 2001 F150 XLT XTR with the 4.6ltr with auto tranny 2wd. Sorry for the long write up but I thought this to be best to describe what is happening.
I was heading out of town Thrusday night when the A/C stopped working in the truck, I also noticed the temp gauge at almost the highest point in the normal zone. I pulled over and shut the truck off and popped the hood. I found the engine to be about normal, not super hot like I planned. I sat for maybe 5 mins and then it was back to normal and headed back to my buddies shop, by the time I got there again the gauge was at it highest point in the normal zone. I put the scanner on it and ran the data on it. the coolant temp was 106 degrees and the head temp was reading 200 degrees. We had a look at it and he came up with changing out the CHT sensor(cylinder head temp sender) I did this test drove and it seemed fine. Next day I was out and towing my smaller trailer everything was good first thing in the morning then it would climb at lights while stopped and then go down once I drove. I swapped out the thermostat and test drove last night everything seemed fine, I even let it idle was I washed it and it was in the Normal zone no problems. This morning I headed out of town again(heading to the palce I did not make it Thursday night) and everything was fine thru town(30min drive) I was on the HWY for 45min to an hour then the gauge climbs up shuts down the A/C the SES light is now on and the oil/water temp light in the upper left corner of my cluster. The SES light was code P01289 on my reader it comes up as a undefined code? I cleared this but the red oil/temp light is on and will ot go out. I am going nuts trying to get this fixed to many this happening right now so I dont get to work on this until about 9 or 10 every night. So frsterated and sleepy. Got any clues to my problem? My truck is a 2001 F150 XLT XTR with the 4.6ltr with auto tranny 2wd. Sorry for the long write up but I thought this to be best to describe what is happening.
