help needed non corvette

[Clem Z.]

need part #
need the GM part number of the speed sensor that drives the speedometer that goes into the transmission on a 1988 silverado C2500 2 wheel drive auto trans with a 3.70 rear gear

[Edward J.]

Re: help needed non corvette

Clem, can you post a pic of what you need? I have a box of old gears and sensors I removed from used transmissions.if I have a I can send to you.

[Clem Z.]

Re: help needed non corvette

Clem, can you post a pic of what you need? I have a box of old gears and sensors I removed from used transmissions.if I have a I can send to you.

thanks for the offer but i have not even looked at it. my speedo has quit working and i figured i would just change it out and see what happens.

[Clem Z.]

Re: help needed non corvette

Check for Code 24 in the ECM. Code 24 does not always illuminate the CEL. So get a paperclip and check the codes. If 24 is not there, there's nothing wrong with the trans sensor or DRAC. The ECM gets its speed signal from the same sensor that the speedo does.

Does the odometer still work? It's driven by a little motor that is independent of the speedo needle. If it still works, you have a cluster problem.

thanks for the heads up. no the odo does not work when the speedo does not work. the "service engine soon'"light come on after a few miles of the speedo not working. some times it works and some time it does not as you can start out with it not working and a few miles down the road it kicks in. once it is working it does not stop until you shut off the engine and then restart it.

[Larry H.]

Re: help needed non corvette

#24232617 with a four speed automatic, #24232618 with a TH400 3 speed auto.
Larry #24649

[Clem Z.]

Re: help needed non corvette

#24232617 with a four speed automatic, #24232618 with a TH400 3 speed auto.
Larry #24649

thanks for the info

[Clem Z.]

Re: help needed non corvette

Clem, can you post a pic of what you need? I have a box of old gears and sensors I removed from used transmissions.if I have a I can send to you.

try this picture i got from the internet

[Joe L.]

Re: help needed non corvette

thanks for the info

clem------


These sensors are also available under Delco #213-194 and 213-3513, respectively. I am very confident that in this case the GM and Delco parts system pieces are identical.

[Clem Z.]

Re: help needed non corvette

clem------


These sensors are also available under Delco #213-194 and 213-3513, respectively. I am very confident that in this case the GM and Delco parts system pieces are identical.

thanks joe

[Clem Z.]

Re: help needed non corvette

need a refresher course on which 2 terminals you insert the paper clip to get the code reading on my 1988 silverado. i has been years since i have done this.

[Rich W.]

Re: help needed non corvette

Top 2 on the right if I remeber right..look into the connector..there is only a couple of wires in it..there are 2 in line on a corner..it depends on how it was bolted in..those will make the check engine light flash..I have a old brick that has all that diag stuff in it if you need help with that also..

[Clem Z.]

Re: help needed non corvette

Top 2 on the right if I remeber right..look into the connector..there is only a couple of wires in it..there are 2 in line on a corner..it depends on how it was bolted in..those will make the check engine light flash..I have a old brick that has all that diag stuff in it if you need help with that also..

THANKS for the reply and i do have the code i am looking for.

[Edward J.]

Re: help needed non corvette

THANKS for the reply and i do have the code i am looking for.

Clem, when you ground the dia. connector it will flash code 12 three times then the next series of flashes are the code. I don't know if you did this?It will do this for each code stored in the computer.

By the way I looked for the sensor today with no luck, sorry. Ed

[Clem Z.]

Re: help needed non corvette

Clem, when you ground the dia. connector it will flash code 12 three times then the next series of flashes are the code. I don't know if you did this?It will do this for each code stored in the computer.

By the way I looked for the sensor today with no luck, sorry. Ed

no problem as the AC delco sensors are on amazon for $35 including shipping. i used to check these codes back in the day but it has been 20 years since i have done it.