Having an issue with my truck and the temps at the moment. Bone stock, 60k miles. I am religious about maintenance. Just had the coolant flushed at the dealer and embarked on a 700mi drive today.
Nearing mile 600 and going uphill I saw, for the first time ever, a temperature notation above the temp gauge. It quickly flashed 230, climbed up to 236 in about 5 seconds - I immediately let off the gas and pulled over. It dropped back down and the numbers disappeared in about 10 seconds. Ambient temp at the time was about 55F. Ambient temps ranged between 25F and 60F on the drive, but warmer towards the end of the drive.
I popped the hood and the coolant expansion tank was a bit above the "MAX" mark. Seemingly normal as the truck is hot. I continued driving and ~10 minutes later at a much lower load the temp flashed again to 236 and then back down quickly as I let off the throttle. Luckily that was all of the climbing and the rest of the drive was downhill. I drove back with a very light foot and out of the boost. Though I did accelerate from 65-80mph on flat to see what would happen and got the temp to flash 230 before dropping back down almost instantly.
I did this exact drive last week in the opposite direction before the coolant flush - during that drive I was traveling a higher average speed and it's got more elevation gain with no issues. I've never seen the temp numbers flash before including on this same drive and over much higher / longer mountain passes at higher speeds in much higher ambient temps. This drive is not out of the norm for me. I've never had the coolant temp numbers flash on this truck or any of my previous ecoboost trucks.
So anyways, something is wrong. I am thinking there is either air in the system or the coolant mix is incorrect. The dealer paperwork states that they added antifreeze (noted as VC13G and about $20 worth) and coolant conditioner (ZXC05 and about $50 worth). The coolant appears to be the correct orange color.
Questions:
1. Does the above seem correct? I've never added coolant conditioner to any vehicle I've ever owned, and would generally need more than $20 worth of antifreeze at dealer prices.
2. What is the coolant mix supposed to be in these trucks? Every vehicle I've owned has been 50:50 which translates into roughly a -30F freezing point as read on a refractometer. I'll measure the freezing point tomorrow but just want to be sure I know what number I'm looking for.
3. What is the average operating temp range supposed to be on these trucks?
4. Is it possible to get the temp to always be displayed numerically above the gauge? Would be helpful to see where it's operating normally.
Thanks for any help or guidance. If anyone has the FSM procedure for coolant swap + the mix / concentration that would be incredibly helpful.
Nearing mile 600 and going uphill I saw, for the first time ever, a temperature notation above the temp gauge. It quickly flashed 230, climbed up to 236 in about 5 seconds - I immediately let off the gas and pulled over. It dropped back down and the numbers disappeared in about 10 seconds. Ambient temp at the time was about 55F. Ambient temps ranged between 25F and 60F on the drive, but warmer towards the end of the drive.
I popped the hood and the coolant expansion tank was a bit above the "MAX" mark. Seemingly normal as the truck is hot. I continued driving and ~10 minutes later at a much lower load the temp flashed again to 236 and then back down quickly as I let off the throttle. Luckily that was all of the climbing and the rest of the drive was downhill. I drove back with a very light foot and out of the boost. Though I did accelerate from 65-80mph on flat to see what would happen and got the temp to flash 230 before dropping back down almost instantly.
I did this exact drive last week in the opposite direction before the coolant flush - during that drive I was traveling a higher average speed and it's got more elevation gain with no issues. I've never seen the temp numbers flash before including on this same drive and over much higher / longer mountain passes at higher speeds in much higher ambient temps. This drive is not out of the norm for me. I've never had the coolant temp numbers flash on this truck or any of my previous ecoboost trucks.
So anyways, something is wrong. I am thinking there is either air in the system or the coolant mix is incorrect. The dealer paperwork states that they added antifreeze (noted as VC13G and about $20 worth) and coolant conditioner (ZXC05 and about $50 worth). The coolant appears to be the correct orange color.
Questions:
1. Does the above seem correct? I've never added coolant conditioner to any vehicle I've ever owned, and would generally need more than $20 worth of antifreeze at dealer prices.
2. What is the coolant mix supposed to be in these trucks? Every vehicle I've owned has been 50:50 which translates into roughly a -30F freezing point as read on a refractometer. I'll measure the freezing point tomorrow but just want to be sure I know what number I'm looking for.
3. What is the average operating temp range supposed to be on these trucks?
4. Is it possible to get the temp to always be displayed numerically above the gauge? Would be helpful to see where it's operating normally.
Thanks for any help or guidance. If anyone has the FSM procedure for coolant swap + the mix / concentration that would be incredibly helpful.
