Skip the auto shop - Our mechanics make house calls

Q: Car is reading trouble code PO136 01/01

asked by on

My 2002 ford escape is reading a code PO136 01/01 I dont even think that is a good code. Replaced sensor sensor 1 bank1 was ok for about 2 days came back on same weird code please advise?

My car has 160000 miles.
My car has an automatic transmission.

A: Hi. There could be a couple of things going...

Hi. There could be a couple of things going on here. There are multiple oxygen sensors on your car and sometimes what we think bank 1 is may not be and the wrong oxygen sensor is replaced giving us the same P0136 code as before.

Another possible causes is the part that you have could be defective from the parts store and cause the code to come back after replacement. Fords are also know to throw oxygen sensor codes when the car has a vacuum leak in the engine or loose or broken vacuum lines.

To avoid any unnecessary repairs, I suggest you have a certified technician from YourMechanic come to your home and further diagnosis your car’s trouble code.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Will a bad O2 sensor damage my car's computer?

The engine control unit (ECU) is a possible cause of the O2 sensor fault codes but not the most likely. Your vehicle is equipped with 4 O2 sensors. Bank 1 is the driver's side. Bank 2 is the passenger side....

Q: How does the Roll Stability Control™ system work?

Your vehicle offers several different control systems to make driving safer in a very wide range of conditions. One of those is the Roll Stability Control™ (RSC) system. RSC is designed to help enhance stability, which is necessary because of...

Q: Would the throttle positioning sensor cause the engine to rev up while driving?

Your issues may stem from a variety of components. Have the vehicle scanned for diagnostic troubleshooting codes. This will give you more information on any issues the computer has detected. Some will not illuminate the Check Engine Light. The vehicle...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...