Speedometer and odometer is inop 98 Chevy s10

SOURCE: 98 chevy s10 blazer turn signal

Unplug the turn signal relay from the fuse box and start you engine. Does it still make that noise?
If yes... Put the relay back in, that is not the problem.
If No...Then the relay could be bad, replace it!

PLEASE RATE THIS SOLUTION! Thank You Very Much!

Harvey N Tawatao

• 3854 Answers
• Posted on Jul 21, 2009

SOURCE: 89-98 chevy blazer

It's not worth doing all that conversion, buy the time you spend the time and money to convert the 89 4.3 to work on the 98 blazer, it would be cheaper to install a 98 vortec rebuild. The 89 4.3 have a TBI fuel injection system and the ecm on the 98 will not work and the bad news is that the ecm on the 98 also controls the transmission shift points and the 89 will not, so even if you swap the ecm to have the 89 4.3 engine work. the transmission will not shift. Sorry for the bad news but it would be cheaper to replace the 98 engine with the years of 1996 to 2001. Good luck and hope this helps. 

Harvey N Tawatao

• 3854 Answers
• Posted on Dec 22, 2009

SOURCE: 95 s10 blazer 4dr power door locks inop, new

1. Locate the red two wired programming connector located near the central locking control module that is located behind LH Lower instrument panel. Drop the panel and you will see the red programming connector that is not connected to anything.
2. Inside the Red programming connector you will see to pins..
Jump two pins with a section of wire.
3. System should now lock and unlock doors to indicate vehicle has entered programming mode.
4. Press any button on keyless remote once. System should now lock and unlock doors indicating the keyless remote has been programmed.
5. Repeat step 4 to program other remote.
6. Remove jumper wire from programming connector to exit programming mode.
7. Test Remote(s)

SOURCE: third brake light inop 2002 chevy s10 crew cab

Are they led lights? if so use a test light across both terminals of the connector on the back of the light. led assembles can go bad.

Jeffrey Turcotte

• 8991 Answers
• Posted on Mar 01, 2011

SOURCE: 2002 chevy s10 blazer 4x4.

Hi, the speed sensor is powered by the PCM via the 10 amp fuse labeled IGN E under the hood. I don't believe your problem is the fuse, as the truck would not likely run if that fuse was bad. The more likely problem is with the speed sensor itself. Sorry I do not have a test procedure for this sensor, so I can't guarantee a new sensor will solve the problem. What you can do is while the truck is jacked up with the drive wheels off the ground (use 2WD), use a voltmeter to back-probe each terminal of the sensor with a voltmeter (put the other probe to chassis ground), and check the voltage with the car running in park versus running in gear. One of the terminals will have a reference voltage and the other the signal. If the signal changes with speed, the sensor is probably working, and the problem would then more likely be the instrument cluster. Let's hope it isn't the cluster, because they are more expensive. A new sensor is just $22 at Autozone. I have pasted instructions below for replacing the sensor. Please let me know if you have questions, and thanks for using FixYa.

Removal & Installation

1. Raise the vehicle.
2. Remove the bolts (1, 3) securing the front transaxle brace (2) to the transaxle and right cylinder head.
3. Remove the electrical connector at the vehicle speed sensor.
4. Remove the retaining bolt (1) and the sensor (2). Twisting the sensor while pulling outward will aid in removal.
   

Fig. Removing front transaxle brace (2) after removing bolts (1 and 3)

Fig. Removing vehicle speed sensor (2)

To install:


CAUTION Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1. Install the vehicle speed sensor and the retaining bolt. Install a new O-ring seal on sensor if necessary. Tighten the bolt to 10 Nm (89 inch lbs.).
2. Install the electrical connector at the sensor. Install the bolts securing the front transaxle brace to the transaxle and right cylinder head.
3. Lower the vehicle.