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Search Auto Parts Search 93 Chevy s10 speedometer Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Transmission Problems jacob_landis08 New User Jul 4, 2009, 6:11 PM Post #1 of 5 (10169 views) 93 Chevy s10 speedometer Sign In I have a 1993 s10 with a 5speed manual its got the 4.3L. my speedometer doesnt work and as far as i know all the plugs are hooked up. I have heard the sensor goes through the radio and it does have an aftermarket stereo maybe something is unpluged? also once it gets warm the parking brake light comes on and the service engine soon light too. please help me! jacob_landis08@hotmail.com is my email (just fixed subject line - TomG) (This post was edited by Tom Greenleaf on Jul 5, 2009, 12:11 AM) Tom Greenleaf Ultimate Carjunky / Moderator Jul 5, 2009, 12:15 AM Post #2 of 5 (10154 views) Re: 93 Chevy s10 speedometer Sign In My guess is this uses a cable for speedo if analog?? If not or either way it might use a speed sensor at trans which would also set off SES light. SES light - get a code reading. Parking brake/any brake light - check fluid level first. This vehicle would be highly subject to frozen brake cables and it would stick partly on also, T (This post was edited by Tom Greenleaf on Jul 5, 2009, 12:20 AM) Sidom Veteran / Moderator Jul 5, 2009, 3:06 AM Post #3 of 5 (10149 views) Re: 93 Chevy s10 speedometer Sign In Tom is correct that on this model it could use either a cable or a speed sensor. To see which one you have just look under the truck at the tailshaft & see if you have a cable going to it or 2 wires going to a sensor.... If it's a sensor (VSS) it doesn't go thru the radio. The speed sensor generates an a/c signal which goes into VSS buffer which converts into a digital signal. But lets find out what you have 1st... Also as Tom suggested, find out what codes are happening to maybe help point you into the right direction......... jacob_landis08 New User Jul 5, 2009, 5:44 AM Post #4 of 5 (10136 views) Re: 93 Chevy s10 speedometer Sign In It has the speed sensor it doesnt have a cable but the guage is not digital.. how can i check the codes? Sidom Veteran / Moderator Jul 5, 2009, 6:36 AM Post #5 of 5 (10134 views) Re: 93 Chevy s10 speedometer Sign In The speed sensor is a common failure on those but you should check it out 1st. You can check the wires & make sure you have reference voltage (purple wire??). I'm guessing you don't have a scope to check the pattern..... I imagine you could use a volt meter on a/c setting, tap into the return line (yellow??) & just look for voltage flucuations???? on this system you still will have a VSS buffer.... the comp whats to see a digital signal even if the speedo head is analog You really should see what codes you are getting..... Most parts store will pull codes for OBD II systems.... Your's is OBD I so I'm not sure on that..... The paper clip method ist to ground terminal a & b of DLC (connector under the dash) & count the flashes.. each code is flashed 3 times & then on to the next code again 3 times....it will start out with a 12... one flash...pause...2 flashes....3 times & on to the next one..... A & B are on the top row all the way to the right (notch of connector on top....wider part on the bottom)   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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