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How to Replace the O2 Sensor in a 95 Pontiac Bonneville SSEI

The 1995 Pontiac Bonneville SSEI engine has one oxygen sensor that detects the oxygen saturation in the exhaust and relays the information to the engines computer to regulate the fuel consumption. When a sensor fails, the "Check Engine" or "Service Engine Soon" light may illuminate on your dash. If the light is on and your fuel mileage has significantly decreased, replace the sensor as soon as possible to save needless expense.

Instructions

1

Raise the hood of the Bonneville. Locate the oxygen sensor threaded into the exhaust manifold near the front of the engine compartment.

2

Pull the electrical connection apart to disconnect it from the sensor. Remove the sensor with a wrench.

3

Coat the threads of the new sensor with electrical anti-seize compound. Install it by hand to avoid cross-threading. Torque the sensor to 30 foot-pounds with a torque wrench.

4

Push the electrical connector together until it clicks. Lower the hood.

Posted by Unknown at 6:00 AM

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