Speedometer doesnt work sometimes..WHY????

165

Asked by Jul 10, 2008 at 02:24 PM about the Chevrolet C/K 1500

Question type: Maintenance & Repair

What could be wrong with my speedometer if it only works sometimes? How do you fix it?

12 Answers

165

Its an 03' k1500 with 50k miles on it

16 out of 16 people think this is helpful.
9,965

it is electonically controlled. You might be having an issue with a faulty speed sensor.

6 out of 6 people think this is helpful.
1,255

I would get a new speed sensor, but you may also want to check your relays and fuses as well. Speed senors are just a laser beam that it usually located near the tire areas, depending on the year of your truck that is. But yea, check your fuses and relays sometimes they are either blown or the relay is no good.

4 out of 4 people think this is helpful.
85

Check the wiring at the speed sensor. Sometimes connections open up or come loose. The speed sensor is connected to the transmission.

5 out of 5 people think this is helpful.
95

One key element is that when the speed sensor stops functioning the transmission will have shifting problems between gears

7 out of 7 people think this is helpful.
9,965

you are thinking of abs sensors. speed sensor is located in the side of the transmission. relay is a possible cause. fuse is not since the problem is intermittent.

4 out of 4 people think this is helpful.
170

my 1989 chevy does the same thing but i think their is somthing partly wrong behind the gauge cluster but when mine quites i hit the dash to get it to work

17 out of 17 people think this is helpful.
1,255

yea I know, I tend to talk out of my ass to much and etc etc ... wasn't sure where the sensors were located ty for tellin me. and it could be the relay, I can't think of anything else...

4 out of 4 people think this is helpful.
105

Mine does it also in an 88. I hit my dash and it works, when I get time I'm going to take the dash apart and se if there is a loose connection or something. I also have problems with the turn signals, ABS light, speedo, and shift light, from time to time.

9 out of 9 people think this is helpful.
80

My 1994 C1500,speedometer,heater switch both stopped working and at same time brake lite comes on...I hit the top of steering wheel a few times and it came back on..now it's doing it again but hitting it ain't working..??

7 out of 7 people think this is helpful.
30

Hey guys my 2004 silverado 1500 comes up with a code c0237 which is a rear speed sensor. I replaced both of them and checked the wiriing but the light is still on but only in 2 wd and in 4wd it's off I don't know why it would be that way anyone know

3 out of 3 people think this is helpful.

I recently replaced the speed sensor on my 94 Taurus, now the speedometer doesnt work. My transmission shifts real hard into 2nd gear. My speedometer worked fine b4 I replaced the sensor.

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