Oxygen sensor and towing
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New User
Joined: Jun 2010
Posts: 4
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From: south jersey
Oxygen sensor and towing
After getting off the highway when towing my 5000 lb boat, the engine runs like the O2 sensor isn't operating properly. Engine runs rough like it is cold. No problems when truck runs without load. Is this normal? The O2 sensor is brand new. Everythng runs just fine before the highway and after it has cooled down. Any thoughts please?
Senior User
Joined: Jul 2006
Posts: 160
Likes: 0
From: SF Bay area
I've had a similar problem when towing my boat in the mountains.
Runs great, until it doesn't.
Talked it over with my mechanic, they couldn't find anything.
The best suggestion I've gotten so far is to purchase a code reader to keep with you in the truck, and then when the problem shows up, park and try pulling the codes/running self-test diagnostics right then.
Good luck. Intermittent problems are the worst.
Runs great, until it doesn't.
Talked it over with my mechanic, they couldn't find anything.
The best suggestion I've gotten so far is to purchase a code reader to keep with you in the truck, and then when the problem shows up, park and try pulling the codes/running self-test diagnostics right then.
Good luck. Intermittent problems are the worst.
Fleet Owner
Joined: Oct 2005
Posts: 20,785
Likes: 1,751
From: Kentucky
If there were any codes present they will still be stored in the Continuous Memory as long as there is power to the PCM. Pull the codes now regardless if there is a check engine light or not.
Use this for reference to check codes yourself: Ford Fuel Injection How To Run a Self-Test
Use this for reference to check codes yourself: Ford Fuel Injection How To Run a Self-Test
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