Question about 1997 GMC Sierra

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Why does my 97 gmc 2500 automatic have no foward gears

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Check the front transfer case, if that goes it will act like the transmission has gone

Posted on Feb 12, 2015

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Posted on Jan 02, 2017

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SOURCE: My 1993 Gmc Sierra 2500 automatic first gear shifts hard also from park to drive others gears are smooth i have overdrive

The gear shift lever indicators tell you what gear you have an automatic transmission in on your vehicle. The shift solenoid tells the transmission when to shift gears and what gear to shift into. Newer model automatic transmissions have electronic shift solenoids that are activated and change gears based on the speed the vehicle is traveling. Troubleshooting either one of these transmission components is relatively easy if you know a little about automobile mechanics. With the right tools, you can determine whether the transmission shift solenoid is having a problem. Gear shift indicator problems can be determined simply by moving the gears into their designated position.
Transmission Shift Solenoid

  • 1 Raise each corner of the vehicle up with the car jack and place jack stands under the frame. Make sure the car is raised high enough so you can work under the car freely.
  • 2 Slide the drain pan under the transmission fluid drain plug. Remove the drain plug with a ratchet and socket, and let all the fluid drain out of the transmission. Remove the transmission pan bolts with a ratchet and socket. Pull the pan away from the bottom of the transmission, revealing the transmission shift solenoid.
  • 3 Wipe off the shift solenoid with a shop towel. Disconnect one of the two plugs that attaches to the shift solenoid. Turn the knob on the volt meter to the ohms setting, so resistance can be measured. Set the volt meter on 200.
  • 4 Take the black lead of the volt meter and touch the negative battery terminal wire. Take the red lead of volt meter and slide the tip into the terminal plug you just disconnected from the shift solenoid. Look at the reading you get on the digital display of your volt meter. Determine if the reading is between 12 and 25. Readings below 12 or above 25 tell you that the shift solenoid is not working. Reattach the plug to the shift solenoid and pull the second plug attached to the solenoid. Perform the same procedures on this plug wire. Replace the transmission shift solenoid after determining it is bad.
Gear Shift Indicator
  • 1 Move the gear shift into the desired gear. Look at the gear labels and the arrow, or other indicator, to see if the gear shift indicator lines up with the selected gear.
  • 2 Move the gear lever to another gear and look to see if the indicator lines up with the selected gear. Misalignment of the arrow will tell you if there is a problem. Moving the gear shift to "neutral" but having the indicator show the transmission is in "drive" tells you the gear shift indicator is not working properly.
  • 3 Try each gear position to determine how much misalignment is in the indicator. Slide under the car and check for a loose gear shift cable. Check all the gear shift cable connections to ensure they are all tight and are not missing. Tighten any loose gear shift cable clamps or bolts. Replace the gear shift cable if you find that this is causing the misalignment with the gear shift indicator.

Posted on Feb 02, 2012

Testimonial: "Thank you brian for youre help with my transmission problem smooth ride now ."

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1 Answer

My transmission want take any foward gears?


My transmission want take any foward gears? My transmission won't go into any foward gears ! Take it to a qualified repair shop , unless you can rebuild a automatic transmission .

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Tranny repairs are labor intensive and require special facilities so it is not going to be cheap. After you get a few estimates you have to consider the overall condition of the truck and decide whether the repair expense is cost effective. So if the rest of the truck or motor is in bad shape you just might want to think twice about making the investment and consider shopping instead.

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1995 gmc 2500 4l80e transmission will it work in my 1997 gmc 2500


not 100 percent but in 95 it is 700r4 and went to the 4l80 in 97 for obdII its the same just more electronic unfortunetly i dont think it will work in ur application

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I have a 97 gmc Sierra v6 automatic and when I start it in the morning it does all the shifts fine and after driving it for about 10 min it struggles to shift into last gear. Don't know what it could...


You don't have a clutch in that automatic, check your transmission fluid first. Make sure you run your truck for 10 min. or so before you check the fluid level. If your fluid is correct then take it to a mechanic, they can check your transmission with their computer and see exactly what is happening when it can't find 4th gear.

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I have a 90 GMC sierra and reverse doesn't work except for when 4x4 is engaged, is it safe to drive or will the tranny go out ( automatic)


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1 Answer

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1993 gmc 2500 transmission interchange what years????
google transmission identification

thats the first step i thats how i found mine i have a 1993 gmc c2500 extended cab and here's the options TH700R4 ----4L60---- OR A 4L60E SO GOOD LUCK im trying to find out what years interchage

i heard if u have a 4.3L its 83-97 or 350 is 81-96

Oct 20, 2008 | 1993 GMC Sierra C2500

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