my SUV idles funny and uses alot of gas and doesnt have a lot of power going uphill. i checked around and some people were saying that it was my o2 sensor and that it wasnt hard to change. could anybody help?
2006-11-28 08:08:49 · 8 answers · asked by brians wife 1 in Cars & Transportation ➔ Maintenance & Repairs
It is located on the exhaust pipe and has an electrical connection that must be unplugged before you begin removing the sensor itself. Be sure to follow the directions on the box i.e. only use the special antisieze supplied for the threads. If car idles funny it may be you are in need of a tuneup; plugs change air filter etc. the oxygen sensor does not have any input until the engine is warm and you speed is over 20-30MPH. also check the IAC a.k.a. the idle air control valve on the intake manifold.
2006-11-28 08:13:36 · answer #1 · answered by gary o 7 · 0⤊ 0⤋
It's really easy. With the engine cold, crawl under the car and find the sensor sticking out of the exhaust pipe up near the engine. It will be in front of (ahead) of the catalytic converter.
Disconnect the lead from the harness, find a closed end wrench the right size and slowly turn it cournter clock wise until it comes out. It may take some effort as these things tend to corrode in place. I usually squirt some penetrating oil on the base of the old one and let it sit overnight.
Reverse the process to install the new one. Be very careful you do not touch the end of the new sensor or let it get dirty once you take off the protective cap.
2006-11-28 09:27:53 · answer #2 · answered by Tim B 4 · 0⤊ 0⤋
Before you change the O2 sensor check your air filter and make sure it's not clogged or plugged up with dirt. That is a lot cheaper to replace and can cause the symptoms you described also. Check for loose or broken vacuum hoses under the hood also.
2006-11-28 08:36:46 · answer #3 · answered by Trackerrrr 4 · 0⤊ 0⤋
It's not hard to change, but your problem isn't the O2 sensor. They usually make the engine run lean when they go bad, and don't affect power much.
You can just unplug it and put a box wrench over the connector. If it's rusted in, some heating and banging might be in order.
2006-11-28 08:58:40 · answer #4 · answered by Nomadd 7 · 0⤊ 0⤋
I hate to tell you, but they straight up lied. My O2 sensors are out as well (I have a 2000 Explorer), and there's no way to change them except to go to a shop. They have to hook your car up to a machine, then get the sensors really hot before they put them in.
2006-11-28 08:12:53 · answer #5 · answered by Nina G 2 · 0⤊ 0⤋
On the 4.0 liter v6 they are located on the exhaust pipe, usually before the catalytic converter (looks like a spark plug with a wire going to it). Just remove the wire going to it, and unscrew it like a spark plug. Then replace with the new one, and reconnect the wire. There are two for that model if I remember right. One on each header (exhaust pipe).
2006-11-28 08:20:13 · answer #6 · answered by Sixdayclay.com 1 · 1⤊ 0⤋
This is what I do and I've been mechanican for years:
Go to the AutoZone website and put in your vehicle year/make/model. Look for 'Do It Yourself' and 'Part Location'. You will be able to see what the part looks like, where its located, and how to replace it. Then look for 'Shopping' for the price and availability of it.
They also give 'Trouble Shooting'.
2006-11-28 08:37:00 · answer #7 · answered by Anonymous · 0⤊ 0⤋
My advice take it to a shop these require a special tool to remove them. Good Luck
2006-11-28 08:17:07 · answer #8 · answered by scokeman 4 · 0⤊ 0⤋