Q: EOT 250 degrees normal driving while ECT is 194 degrees

asked by on January 02, 2017

EOT is 250 degrees with ECT 194 degrees while normal driving, 45-55 mph, not towing, outside temp 80 degrees. EGR coolers were removed a year ago. No problems until a month ago when degas bottle began puking. EOT, at that time was 210 degrees. Dealer claims to have changed oil cooler, head gaskets, head bolts, fuel lines and rails, degas bottle, thermostats and oil temp sending unit. Now EOT is off the charts. Dealer says it's ok. Hasn't exceeded Ford's high limit. I am sure that when I tow my boat the EOT will climb. HELP!!!!! What is going on? btw--this truck is not a beater. It's a cream puff. daily driver super clean. No mudder

My car has 140000 miles.
My car has an automatic transmission.

Exhaust System Inspection $94.99 - $114.99 Get a Quote

Hi there. Check the turbo and make sure that its functioning correctly and you have good boost. If the turbo is working properly, then there may be a plugged catalytic converter on the exhaust system making the engine overheat. This could explain why that diesel exhaust fluid (DEF) is running out of the container. If you need additional help with your engine overheating, then I recommend seeking out a professional, such as one from Your Mechanic, to help you

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Car starting intermittently.
Intermittent no start conditions can be among the most difficult to diagnose because of their irregular nature. There are two things that come to mind. Number one: A faulty starter will cause a condition similar to what you are describing....
Driver's side window fell
Greetings! I did not get your vehicle's engine size, but this concern plagues many vehicles. It seems the mechanical connection between the window glass and window regulator may have failed. In many cases, the mechanical connection can be repaired. More...
Oil light on
Hello. This could be an indication that your oil pump needs to be replaced. However, it could also indicate that your engine is going bad and needs to be replaced. I would recommend that you have a certified technician, like...
Just replaced faulty starter and one week later it won't work again
If you got a used starter then that starter may have the same problem that your original starter had. This is common with used parts. I would make sure you are getting power to the main big terminal to the...
Ignition coil
Hi, thanks for writing in. Your engine has six coils, one per cylinder. The connector should be squeezed then pull off the coil. Hope this helps and best of luck.
Gear shift indicator won't go into park
Hello, thanks for writing in. There is an adjustment procedure for the shift indicator on your vehicle. Some shop repair manuals will outline how to make the adjustments, but it would be best to consult a certified mechanic that has...
Why is my transaxle light flashing on and off?
In general, if your dash warning lights (https://www.yourmechanic.com/article/what-does-it-mean-when-the-dashboard-warning-lights-blink) flash briefly right after cranking your engine and then turn off, this is normal. Each system is performing a self-check. The lights turn off after verifying that the systems are operating. If...
Speedometer fluctuating
Hi There, This could be related to a couple of possibilities. The [instrument voltage regulator]((https://www.yourmechanic.com/services/instrument-voltage-regulator-replacement) regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the gauges in your...
Shift stick is loose 2007 Chevrolet Impala
Hello - the symptoms you describe are most likely caused by a loose or worn out shifter cable (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-shift-selector-cable). It may have even become disconnected on the transmission end of the cable. I recommend a shifter cable replacement (https://www.yourmechanic.com/services/shift-selector-cable-replacement) performed...

Related articles

The Best Used Cars to Buy If You're a Doctor Who Makes House Calls
If If you are a doctor who makes house calls, reliability is likely to be at the forefront of your mind when it comes to choosing a used car. You also expect a certain level of comfort. We have evaluated...
The Best Used Cars to Buy That Can Be Towed Behind an RV
Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. Then they tow their car behind it – sometimes this practice is called...
The Top 5 Selling Cars in Florida in 2012
Florida Florida offers great weather year round, and the fact that snow and ice never factor into the equation means drivers don’t have to focus on the overall vehicle handling as they do in other states. The best selling cars...