Question about 1998 GMC Sierra

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1998 gmc sierra speedometer and tach stop working

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75797 Answers

SOURCE: speedometer stopped working

The speedo is electronic, u will have to pull the unit out and send it to a GM authorized repair center like speed-o-tach inc.

Posted on Dec 11, 2008

  • 12 Answers

SOURCE: removal of power steering pump on 1998 GMC Sierra 1500

you need a power steering pump puller the rest is simple any trouble let me know

Posted on Dec 24, 2008

TheValley
  • 6 Answers

SOURCE: 4X4 inop on 2003 GMC Sierra 2500HD

I have found that when you are going to engauge 4x4 high, it is best to only be going about 3 miles an hour. Not faster, not stopped. It likes some movement to help it mesh. I've had perfect shifts since I started this. Hope it helps. Wade.

Posted on Jan 27, 2009

  • 13 Answers

SOURCE: 1998 GMC Sierra radio and display stays on all the time

First of all...does your truck have the retained accessory power (RAP)? If it does, the radio would always stay on with the key off until you open the drivers door. If it does have RAP and the door pin on the drivers door has went bad, then the truck doesn't know that you opened the door and continues to allow accessory power (although it would still cut off after about 20 minutes). If the interior lights come on when you open the door, then the pin is ok. If the lights come on, it could be the RAP relay. If it has gone bad, it is possible it is stuck supplying power and needs replacing. The relay should be labeled in the fuse panel, and there should be other relays in the panel with the same part number. You can swap a relay for the RAP relay and see if it fixes the problem...if it does fix it swap the relays back and replace the RAP relay. If the truck doesn't have RAP then it is possible the problem is in the radio..if you have a friend with a GM car or truck close to the same year you could swap radios and see if that fixes your problem...should be pretty simple. pull the cover off the dash, it just clips on, take out a couple screws that hold in the radio, unplug it and plug in the other radio. sorry so long winded...hope this helps you somewhat.

Posted on Mar 13, 2009

  • 37 Answers

SOURCE: 2005 GMC Pickup speedometer does not go to zero

There was not a recall, but there was a class action settlement where GM agreed to extend the warranty on certain vehicles for this problem. Check www.gmspeedometerrecall.com to see if you qualify.

Posted on Mar 16, 2010

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1 Answer

I have a 2003 gmc hd2500 the tach works sometimes and the speedometer starts out at 45 and goes up


Hi, your speedometer and tachometer drive motors are wearing out and need to be replaced. You'll need to pull your instrument cluster and send it off to be repair.

I am and expert in silverado speedometer repair and can get you fixed up quickly. Check out my site here www.DrSpeedometer.com

Apr 17, 2010 | 2003 GMC Sierra 2500HD

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I would check your fuses first

Dec 18, 2009 | 2002 GMC Sierra 2500HD

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Truck will ot shift and speedometer stopped working too


Have somebody check for trouble codes.Look for possible speed sensor codes.The speed sensor is a input to both trans and abs.

Aug 06, 2009 | 1998 GMC Sierra

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Tach, speedometer, and odometer do not work. tranny dont down shift.


the ignition switch needs to be replaced,not the key switch but the actual switch and harnes9comes together.when this is deftive you have the abive symtoms but only 3rd and reverse will work.try tapping the switch,if the tach ect. starts working so wil the tranny,repace the switch.

Jul 29, 2009 | 1998 GMC Sierra

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probally need to check engine groundwires. clean all terminals. battery may have loose terminal.

Jan 14, 2009 | 1999 GMC Sierra

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Speedometer stopped working


The speedo is electronic, u will have to pull the unit out and send it to a GM authorized repair center like speed-o-tach inc.

Dec 11, 2008 | 2005 GMC Envoy

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I have a 2005 GMC Sierra Pickup and the speedometer stopped working, well actually it goes in between 90 and 120. What do i do?


Your instrument cluster needs to be rebuilt, your speedometer drive motor is wearing out, very common on these trucks.

I'm a specialist in silverado speedometer repair check out my site at www.DrSpeedometer.com

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1 Answer

1998 GMC Jimmy


sounds like the computer has a glitch. you might need to go to the dealer to have the computer trained(reprogrammed) or to see if you need a new one.

Aug 13, 2008 | 1998 GMC Jimmy

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