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CTFordTech, Ford Technician
Category: Ford
Satisfied Customers: 4976
Experience:  Ford Master School Certified, Kia Elite School Certified, ASE Certified, A/C 609 Certified
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oxygen sensors located on a 2001 Ford ranger 2wd 4.0L efi sohc?

Customer Question

Where are the oxygen sensors located on a 2001 Ford Ranger 2WD 4.0L EFI SOHC?
Submitted: 8 years ago.
Category: Ford
Expert:  CTFordTech replied 8 years ago.

HelloCustomerand Thank you for choosing Just Answer.



There are 4 oxygen sensors ion your 4.0L There are two upstream sensors and two down stream sensors. If you look in the engine compartment at the exhaust manifolds, Right after the manifolds end and the downpipes start, You will see the oxygen sensors. These are the two upstream, One on each side. Then after the catalytic convertors on each side you will see both the down stream sensors. The sensors ahve either a blue or green connector.


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Customer: replied 8 years ago.
Is there any way that I could get a diagram of all this?
Expert:  CTFordTech replied 8 years ago.

This picture describes the two upstream sensors. To replace the downstream you will need to get under the truck.