Question about Pontiac Sunfire
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Posted on Jan 02, 2017
If the speedo isn't working properly, the first thing to check is the output speed sensor wires on the rear right side (near the bar code) of the tranny case. Follow the wires and make sure it hasn't been cut, pinched or shorted.
If all is well there, take the output speed sensor off. Watch out cause you'll get wet with tranny fluid (Dexron 6). (Be ready to plug it up.) If there are no metal chips or debris on the magnet inside, check it with an ohmeter on the two pins to see what the reading is. It should be around 6 to 10 ohms. If it's not steady, get a new one. Make sure the pins are clean on the connectors.
Apply some white or build grease around the shaft and "O" ring and re-install. Don't overtighten. The bolt is a "tap-tite" and should need only about 5 or 6 ft/lbs torque. (Run it in and give the bolt a quarter turn.)
Posted on Apr 15, 2009
Hello oldiro: My name is Roger and I can help. From under the vehicle look up between the transmission and the side of the block. Mid motor above the pan rail there is a bolted in sensor. This should be the crank sensor.It will have two wires plugged in to it. Please rate this answer as this lets us know you received the information you asked for. Should you need further help please just ask. Thank You for using FixYa. Roger
Posted on May 06, 2009
SOURCE: location of crankshaft sensor
Hello mitchoreb: My name is Roger and I will be glad to help with your answer. You will need to raise the vevicle in order to see the sensor. Make sure to use safety stands when ubder the vehicle when raised up.Look in the area behind the oil filter.Just in front of the knock sensor.This will be just above the oil pan rail.The knock sensor is a round sensor with a round plug.The crank sensor should hove a oblong plug. You should have a picture along with this reply. Should you need any further help please just ask. Please rate the answer you received as this way we know you recived helpful information. Thank You for using FixYa.Roger
Posted on May 09, 2009
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