P0136 is a common OBDII code that wake up in the Chevy Tahoe. That is generally caused when the O2 Sensor voltage is no within regular operating range.

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Bank one will certainly be the side of the engine through cylinder 1 in the firing order.

Chevy Tahoe P0136 Symptoms


Often, the just symptom that P0136 is walking to it is in the service engine shortly light. In some cases, there can be various other symptoms together well. This symptoms include:

turbulent running engine Smelly exhaust company light on negative MPG

Most that the time, it’s no a breakdown risk. But, like anything that causes the organization engine soon light to come on it is a great idea to have it solved as shortly as possible. Control your auto for really lengthy periods of time v P0136 can potentially cause engine, catalytic converter damage.

P0136 Causes: Chevy Tahoe

Here are the most usual issues that cause the P0136 password in the Tahoe. They room presented in order (somewhat) of most to least likely to cause the problem.

Damage come the Terminal– The terminal the the oxygen sensor connects come (the plug) is also reasonably susceptible to damage. You’ll want to make sure that over there is voltage going to it. There’s an ext on that straight below. Exhaust Leak– If the exhaust is leaking, climate it’ll enable oxygen in that shouldn’t be there. That have the right to throw this code. Wrong O2 Sensor– If friend are obtaining P0136 after having recently changed your Oxygen sensor, it might be that the replacement is dorn or bad.


Tahoe P0136 Diagnosis

Here is a great video that covers all facets of diagnosing a P0136 trouble code It’s for a VW, but the password is universal.

It is feasible to diagnose the P0136 with a multimeter. If you use the multimeter, you’ll understand whether or not the voltage coming to and from the oxygen sensor is in ~ spec, this can assist you determine if it’s her Tahoe’s O2 sensor, or wiring harness that’s the issue.

If girlfriend don’t have accessibility to a multimeter, it absolutely wouldn’t ache to inspect the wiring to in between the fuse box and also the Oxygen sensor first. If it end up being a wiring issue, it’ll save you money end buying one unnecessary O2 sensor.

You can also use a voltage test light to determine whether or no the oxygen sensor is getting any kind of voltage at all (they’re about $5 at Walmart). If it’s not getting any kind of voltage, connect the test light to the harness plug and also shake the wiring a little bit. If the light come on, also for a second, you recognize that you have actually a short circuit leading to the P0136 trouble code.

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Most of the moment with P0136, it’s going to be the oxygen sensor itself that has caused the code to trigger. Great luck finding whatever caused that in your Chevy Tahoe. If you have actually anything the you would like to add, please feel cost-free to leaving a comment below.