Sponsored

King Ranch O/2 sensor fails

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
Only 795 miles on the truck and the O/2 sensor trips the engine light..
2 days at the dealers and of course they don't have the part..
They tell me drive it till the part comes in that it won't cause damage..
From what I've always heard this isn't true, so it's parked until they call me back for repairs.
Not a good start for a month old truck..
Sponsored

 

Bryan Simon

Well-known member
First Name
Bryan
Joined
Sep 16, 2020
Threads
13
Messages
1,439
Reaction score
1,088
Location
San Antonio, Texas
Vehicles
65 Ranchero, 66 ElCamino, 05 Ranger, and more
Occupation
Maintenance
Only 795 miles on the truck and the O/2 sensor trips the engine light..
2 days at the dealers and of course they don't have the part..
They tell me drive it till the part comes in that it won't cause damage..
From what I've always heard this isn't true, so it's parked until they call me back for repairs.
Not a good start for a month old truck..
If it is a p0420, go ahead and drive it.
That code is just saying the cat ain’t working right.
That sensor is after the cat

The sensors in front of the cat, I believe, can make runability changes.
 
OP
OP
SonnyDigs

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
If it is a p0420, go ahead and drive it.
That code is just saying the cat ain’t working right.
That sensor is after the cat

The sensors in front of the cat, I believe, can make runability changes.
Nope this is the code it's showing..
Thanks..

Ford F-150 King Ranch O/2 sensor fails 20210125_145238
 
OP
OP
SonnyDigs

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
UPDATE:
O/2 sensor isn't available, it has been escalated
to Ford Customer Care..
Could be 2 weeks, the dealership will not guarantee me that it won't damage the vehicle to drive it..
So mad I can't see straight
 

TheGoodLife

Well-known member
First Name
Ryan
Joined
Sep 26, 2020
Threads
2
Messages
91
Reaction score
41
Location
Idaho
Vehicles
None yet
UPDATE:
O/2 sensor isn't available, it has been escalated
to Ford Customer Care..
Could be 2 weeks, the dealership will not guarantee me that it won't damage the vehicle to drive it..
So mad I can't see straight
That’s really frustrating.

Are they not at least offering you a loaner rig while they await the warranty repair???
 

Sponsored

OP
OP
SonnyDigs

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
That’s really frustrating.

Are they not at least offering you a loaner rig while they await the warranty repair???
Ford Customer Care has offered 10 days of a rental car for free..
I have several vehicles so I'll pass on that..
Hoping this is resolved quickly..
I have a mechanic friend say he doubts it's the sensor.. Thinks it's something else triggering
the sensor error.. Says he will be surprised if that
fixes the issue..
My fingers are crossed it's just that simple..
 

cakryg

Well-known member
First Name
Chris
Joined
Oct 8, 2020
Threads
5
Messages
126
Reaction score
127
Location
NY
Vehicles
2004 Tundra
Ford Customer Care has offered 10 days of a rental car for free..
I have several vehicles so I'll pass on that..
Hoping this is resolved quickly..
I have a mechanic friend say he doubts it's the sensor.. Thinks it's something else triggering
the sensor error.. Says he will be surprised if that
fixes the issue..
My fingers are crossed it's just that simple..
I would definitely not drive the vehicle at all. The ecu knows it cannot control adjust the air/fuel mixture properly and is too lean which can result in detonation aka knock. I would leave it at the dealer and insist on a loaner.

I'm really surprised with all of these issues. The powertrain hasn't changed much on these vehicles with the exception of the power boost.
 

uavmx

Well-known member
Joined
Oct 1, 2020
Threads
11
Messages
265
Reaction score
164
Location
Albuquerque
Vehicles
2014 Jeep Grand Cherokee
I would definitely not drive the vehicle at all. The ecu knows it cannot control adjust the air/fuel mixture properly and is too lean which can result in detonation aka knock. I would leave it at the dealer and insist on a loaner.

I'm really surprised with all of these issues. The powertrain hasn't changed much on these vehicles with the exception of the power boost.
Even if you don't need/want the loaner, them paying for it is likely motivation to get your truck fixed faster!
 
OP
OP
SonnyDigs

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
Even if you don't need/want the loaner, them paying for it is likely motivation to get your truck fixed faster!
That's true...
Talked to them again today, same story part not available until Feb 9th.
That means another week to get part and truck fixed..
If it goes a month they will make a truck payment.
I don't have any payments..
 

Pinero

Well-known member
First Name
Jordan
Joined
Feb 2, 2021
Threads
4
Messages
52
Reaction score
46
Location
Down the bayou.
Vehicles
2021 Lariat Sport 5.0 SCREW FX4
Occupation
High Voltage Technician
Post catalyst sensors do not affect the operation of the engine. They’re there for emissions equipment health. It’s annoying, but all you’ll risk is a CEL.
 

Sponsored


OP
OP
SonnyDigs

SonnyDigs

Well-known member
First Name
Sonny
Joined
Dec 23, 2020
Threads
8
Messages
802
Reaction score
506
Location
Texas
Vehicles
2021 F150 King Ranch
Post catalyst sensors do not affect the operation of the engine. They’re there for emissions equipment health. It’s annoying, but all you’ll risk is a CEL.
What is CEL?
Thanks..
 

Eric

Well-known member
First Name
Eric
Joined
Jan 10, 2021
Threads
33
Messages
506
Reaction score
402
Location
Toronto
Vehicles
2021 F150 XL STX
UPDATE:
O/2 sensor isn't available, it has been escalated
to Ford Customer Care..
Could be 2 weeks, the dealership will not guarantee me that it won't damage the vehicle to drive it..
So mad I can't see straight
Damn brother. I know that feel. I hope they make it up to you. Best wishes Sonny
 

Pinero

Well-known member
First Name
Jordan
Joined
Feb 2, 2021
Threads
4
Messages
52
Reaction score
46
Location
Down the bayou.
Vehicles
2021 Lariat Sport 5.0 SCREW FX4
Occupation
High Voltage Technician
I would definitely not drive the vehicle at all. The ecu knows it cannot control adjust the air/fuel mixture properly and is too lean which can result in detonation aka knock. I would leave it at the dealer and insist on a loaner.

I'm really surprised with all of these issues. The powertrain hasn't changed much on these vehicles with the exception of the power boost.
What is CEL?
Thanks..
check engine light
 
 




Top