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I have an '03 Suburban 1500 Z71 ( 4X4 ). Mine tested bad on Bank 1 front sensor. Mine was located on driver's side exhaust pipe next to bell housing for transmission. Unclip the wiring harness ( small hands and a screwdriver help with this step as the clip is in a tight spot between body of car and transmission. Loosen sensor with wrench ( very similar to spark splug ) and remove. Install new sensor and tighten. Insert clip on wiring harness. Not too difficult.
I have a 2001 Suburban 2500 with 8.1 engine, with four original oxygen sensors. One went bad (got several check engine - heater error codes), so I replaced all four, because the GM manual and Bosch say the oxygen sensors are good for 100,000 miles (I have 108,000). Decided to go with NTK brand (owned by NGK spark plug company), because some people claim they are more durable than Bosch. Bosch invented oxygen sensors and has made more than any other company. NTK now produces more per year than Bosch (or any other company). Used three NTK P/N 21313 ($59.89 each) and one NTK P/N 21518 (left rear @ $82.89). You will need a 22 mm open end wrench to remove & install. Old sensors were hard to break loose (used hammer and a big box-end wrench as "cheaters"). New sensors went in and fit great to OEM electrical plugs - followed good NTK instructions. Plugs have a funky blue plastic lock pin - pull that first, then lift clip and pull plug apart. Used two zip-ties per sensor to keep wires away from hot / moving parts. Should get better gas mileage now - haven't yet checked. One word of advice - avoid cheaper "universal" oxygen sensors because you have to use the old electrical plugs and splice 4 wires per sensor - all in bad locations.
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How do you replace the service ride control sensor on a 2003 suburban?
you take it out.
Can you clean the oxygen sensor on a 2003 Chevy Suburban?
An ox sensor is a sensitive component it can easily b damaged it should b replaced at 65 to 75,000 miles for optimum performance. Corrosion ,acids and temperature plus abrasion from carbon take its toll. Replace the sensor.
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier?
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier
How many oxygen sensors does a 2003 suburban have?
4
How do you replace a 2003 Kia Spectra throttle position sensor?
How to replace throttle sensor kia spectra 2003
What should it cost to replace the oxygen sensor in a 2003 Chevrolet Impala?
The sensor is about $75.00 to $100.00 and the labor is 1/2 hour with 1 hour diagnostics. It is best to have the diagnostics done as you may not have a bad oxygen sensor. It could be as simple as a vacuum leak.
Where is the throttle position sensor on a 2003 Chevrolet suburban?
The throttle position sensor on a 2003 Chevrolet Suburban is located on the side of the throttle body. It notifies the vehicle's computer of the actual position of the throttle plate in relation to the throttle body.
Can you replace the Coolant Level Sensor in a 2003 deville?
No, you have to replace the complete tank which includes the sensor.
Is 02 sensor bank 2 on the passenger side on 2003 chevy suburban?
YES
What does O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 1 on a 2003 Chevy S-10 pickup indicate and it's location to replace?
The Exhaust Manifold Oxygen Sensor needs to be replaced.
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replacing a fuel sensor on a 2003 grand prix?
How do you replace the oxygen sensor on a Renault Clio 2003?
its located just before the catalyst. Unlplug it then using an oxygen sensor socket carefully undo it. it will be very very tight due to the temperatures it experiences, be careful incase you shear it off!
