P1299 Lincoln Code - Cylinder Head Temperature Sensor Detected Engine Overheating Condition
Quick Answer
The Cylinder Head Temperature (CHT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Low engine coolant, Faulty Thermostat, Faulty Cylinder Head Temperature (CHT) Sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1299 Lincoln indicates Cylinder Head Temperature Sensor Detected Engine Overheating Condition.
- Common causes
- Common causes include Low engine coolant, Faulty Thermostat, Faulty Cylinder Head Temperature (CHT) Sensor.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1299 Lincoln Description
The CHT sensor is installed in the aluminum cylinder head and measures the metal temperature. The CHT sensor can provide complete engine temperature information and can be used to infer coolant temperature. If the CHT sensor conveys an overheating condition to the PCM, the PCM initiates a fail-safe cooling strategy based on information from the CHT sensor. A cooling system concern such as low coolant or coolant loss could cause an overheating condition. As a result, damage to major engine components could occur. Using both the CHT sensor and fail-safe cooling strategy, the PCM prevents damage by allowing air cooling of the engine and limp home capability.
The Diagnostic Trouble Code (DTC) indicates an engine overheat condition was detected by the Cylinder Head Temperature Sensor. A Failure Mode Effects Management (FMEM) strategy called fail-safe cooling was activated to cool the engine.
What are the Possible Causes of the DTC P1299 Lincoln?
- Low engine coolant
- Faulty Thermostat
- Faulty Cylinder Head Temperature (CHT) Sensor
- Cylinder Head Temperature Sensor harness is open or shorted
- Cylinder Head Temperature Sensor circuit poor electrical connection
How to Fix the DTC P1299 Lincoln?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1299 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1299 Lincoln Code
1. What are the common symptoms of OBDII code P1299 in a Lincoln vehicle?
The common symptoms of P1299 in a Lincoln include engine overheating, illuminated temperature warning light on the dashboard, and potential engine performance issues.
2. What could cause the OBDII code P1299 to trigger in a Lincoln?
The most common cause of P1299 in a Lincoln is a malfunctioning or faulty cylinder head temperature sensor, which detects engine overheating conditions.
3. How serious is the P1299 code in a Lincoln vehicle?
The P1299 code should be taken seriously as it indicates a potential engine overheating condition, which can lead to severe damage if not addressed promptly.
4. Can I continue driving my Lincoln with the P1299 code present?
It is not recommended to continue driving your Lincoln with the P1299 code present as it can result in engine overheating and further damage to the vehicle.
5. How can I diagnose and repair the P1299 code in my Lincoln?
Diagnosing and repairing P1299 typically involves inspecting the cylinder head temperature sensor, checking the cooling system for any issues, and replacing the sensor if necessary.
6. Is it possible to reset the P1299 code in a Lincoln without fixing the underlying issue?
Resetting the code without addressing the underlying issue, such as a faulty sensor or cooling system problem, is not recommended as the problem will likely reoccur.
7. Are there any DIY tips for fixing the P1299 code in a Lincoln?
While some may attempt to replace the cylinder head temperature sensor themselves, it is recommended to consult a professional mechanic for proper diagnosis and repair.
8. How much does it cost to repair the P1299 code in a Lincoln?
The cost of repairing P1299 in a Lincoln can vary depending on the extent of the damage and the specific repairs needed, but it typically involves replacing the faulty sensor and addressing any cooling system issues.
9. Can a Lincoln dealership service center help with the P1299 OBDII code?
Yes, a Lincoln dealership service center or a qualified mechanic specializing in Lincoln vehicles can help diagnose and repair the P1299 code to ensure proper functioning of the vehicle.
10. What steps can I take to prevent the P1299 code from reoccurring in my Lincoln?
To prevent the P1299 code from reoccurring, ensure regular maintenance of your Lincoln's cooling system, promptly address any overheating issues, and replace the cylinder head temperature sensor as needed.
Discuss the causes and fixes for P1299 Lincoln OBDII Code
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What model and year is your Lincoln? Start by checking the engine coolant level and condition.
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Recently had the transmission changed in 2006 Lincoln Mark Lt. First time driving long distance Reduced Engine Power light came on then the Engine light came on and stayed on. Didn't drive it anymore and put a scanner on it and P1299 code came up. Checked the engine coolant and it's good. Could it be they didn't hook something up right when replacing the transmission?
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mine is showing the same code and it's full of coolant but still runs hot from time to time...2002 Lincoln Ls....it does have a water leak but I'm not sure where the water is goin
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If there aren't any external coolant leaks, you could have blow head gasket. Next step is to have a repair shop perform a compression test.
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I have the TC, 2006, getting a P1299. Is this the coolant temperature sensor? I had the radiator replaced less than a month ago, but the P1299 is new as of two days ago. Thoughts? Where can I find this sensor to replace it?
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The sensor is under the intake manifold, but before replacing the sensor, make sure the coolant level is OK. Low coolant level could also trigger the P1299 code.
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I replaced the coolant temperature sensor today. It really needed replacing, considering it's the original (car has 480,000 miles). But it didn't fix the overheating, so my next thought is the head temperature sensor. Hopefully easier to get at.
Pic is of car on a trip out to Vegas earlier this year. Original paint, which I had restored (swirls removed) and coated with a ceramic finish. No waxing for five years.
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Nice car and nice picture.
I think I forgot to attached the image. Here is the image of the sensor location.
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Yes, that’s the one I replaced. Driving home (10 minutes) it appeared fine but started to overheat as I got home (we live up top of a hill). I had the AC on to replicate the problem, and it did. The AC blew hot, btw, never cooled.
So.. it’s clearly something else.
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Have you replaced the thermostat? bad thermostat could trigger the code and cause the overheat problem.
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It appears to be the fan relay. The fan never comes on. At least we’ll start there and move up the dollar chain.
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Sounds like a good idea. Please let us know how it turns out and if you need any help.
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I'm getting P1299 code on my 2014 Lincoln MKZ. Coolant level is fine. Do you have a diagram of where the Cylinder Head Temp Sensor is? Thanks!
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Hey I'm getting a oil sensor with key sensor on my Lincoln navigator 2001,i went got a GOYB ON CAR AND CODES, P1299, P0304 ,I noticed the coolent area was bone dry so I put coolent and helped that, but my spark plug cylinder 4 needs to be changed because I'm having misfire again and I just changed it,
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Looking for the cylinder head temperature sensor on. 2008 lincoln mkz? Help me please
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You have to remove the lower intake manifold to access the sensor (See image below). Before you replace the sensor, make sure there are no coolant leaks and that the radiator fans are working properly. Also, I recommend changing the thermostat before changing the sensor.
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How do i remove the lower intake manifold? Are there any links to videos i can use?
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My 06 ls v8 upper radiator hose burst, got an audible warning to check engine temp, saw gauge pegged, pulled over and shut engine off. After replacing upper and lower hoses and replacing coolant and bleeding system and then test drive I then noticed MIL on. Checking w/OBDII reader showed P1299. I didn't notice the MIL till after test drive. I cleared MIL and will see if it returns.
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Thanks in advance for your time and input!
2013 Lincoln Navigator L-5.4L V8 P1299 Error Code.
Looking for Cylinder Head Temperature (CHT) Sensor location? Along with any input.
Coolant is fine, engine is not over heating but a FAN keeps kicking on. Check engine light turned on while driving and vehicle stalled. I did a Reset code with OBD2 scanner and was able to get vehicle home. Initially started with heater blowing cold air, not getting hot. I will also be replacing the thermostat.
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CHT sensor is located in left cylinder below intake manifold. The P1299 code Indicates that an engine overheat condition was detected by the CHT sensor. Before replacing the sensor, check if your vehicle is overheating. If is "NOT" overheating, then the problem is the sensor. If the engine is overheating, then the problems is something else, like the thermostat or water pump.
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