Question about Chevrolet S 10
Try this- pick the truck up off the ground high enough to safely keep the drive wheels from touching the ground. Get underneath the truck with a digital multimeter. Set your meter to Volts AC. Unplug the two-wire plug from your vehicle speed sensor, and connect the leads from your meter directly to the Vehicle Speed Sensor on the transmission. Have someone start the truck up and put it in drive, and carefully, slowly let their foot off the brake. Once the wheels start spinning, you should see an AC voltage reading at the sensor on your meter. The voltage will increase with speed, and decrease as the wheels slow down. If you've got that much, the sensor and reluctor ring in the transmission are okay, and you're going to need to find out why the wires aren't sending the signal from the VSS to the PCM. The best way to find a broken wire is to unplug the VSS connector and pcm connector, and ohm out (measure the resistance) the wires end to end to find out if there's a broken or shorted wire between the two components. If you aren't getting an AC voltage reading off the sensor with the wheels spinning, then you've either got a problem with the sensor, or an internal problem in the transmission with the reluctor ring missing, broken, or loose.
Posted on Oct 19, 2013
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Posted on Jan 02, 2017
Hi, make sure you check the speed cable that runs to the engine, it may be severed. As for the tranny, you have some major gear problems that will require pulling this transmission for a deeper look. i would have a look at the transmission filter as well.
Posted on Mar 11, 2009
Either you have a broken wire some where from the speed sensor to the cluster or you have connector at fault, the one which hookup the dash cluster to the main wire bundel. Check the connector, maybe a pushed back pin !!
Posted on Aug 08, 2009
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