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A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Lincoln
Satisfied Customers: 6169
Experience:  ASE Master Certified. ASE Gasoline Engine Performance Certified,Ford Senior Master Technician
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P1299 code, P1299. Can I reset it by unplugging the battery,

Customer Question

P1299 code
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: P1299. Can I reset it by unplugging the battery
JA: What is the model/year of your Lincoln?
Customer: 2001 ls
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: The dealership told me I had a blown head gasket, bought a used engine with 65000 miles and had it installed. Still had the same problem, overheating. But not all the time. Can't trust it to drive it regularly
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 1 month ago.
Category: Lincoln
Expert:  A. Penland replied 1 month ago.

Is the engine actually overheating?
What engine does your LS have?

Customer: replied 1 month ago.
3.9l. The funny thing about it is, when I took the car back to the mechanic to see why it was running hot, it hasn't ran hot since, I have driven it about 500mi. And hasn't ran hot once but it's still throwing that code.
Customer: replied 1 month ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  A. Penland replied 1 month ago.

Did you use the sensors from the used engine or the old engine?

Customer: replied 1 month ago.
I didn't mean to end my chat with the expert
Customer: replied 1 month ago.
That I dont no. I will replace them , if I need to. I got about 3000 tied up in this motor.
Expert:  A. Penland replied 1 month ago.

First make sure all the air is purged from the cooling system properly and that the engine is not actually overheating. That code is caused by the engine running too hot. Not actually by a bad sensor.

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