Question about 1993 GMC Sierra K1500

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1993 GMC 1500 6.2 DIESEL AUTOMATIC W/O,TRANS KEEPS SHIFTING WHEN AT HIGHWAY SPEEDS,APP 100KMH.

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6 Suggested Answers

  • 51 Answers

SOURCE: gmc 2500 gmc turbo diesel 4x4

Check all electric connections going to transmission as (od) is electrically activated. check the conections and entire wire path for damage. OD can be disengaged by slowing speed or slight tap of brake pedal so check disengage switch and wires on brake pedal. I hope this is helpful, please rate me

Posted on Jan 12, 2009

emissionwiz
  • 60557 Answers

SOURCE: 1993 GMC 1500 4x4 poor shifting

this may be due to a poor connection at the vehicle speed sensor on the transmission, pull the connector off the sensor and clean it with contact cleaner, if the problem persists replace the speed sensor. there are 2 diff ones here is a picture of the most common one for an auto trans.3deea43.jpg

Posted on Mar 26, 2009

  • 8 Answers

SOURCE: 2003 GMC Sierra 1500 looses power at highway

Does the reduced engine power message come on? if it does check the electric connector at the throttle body. sometimes the wires get dirty or something. and usually the yellow one.

Posted on Apr 12, 2009

michigan man
  • 3533 Answers

SOURCE: Auto trans shifting problem

check the sensor on the transmission and give these guys a call at Schram auto and truck parts 1-800-292-1032 they sell only GM parts or try online at www.schramauto.com

Posted on May 03, 2009

todd0708
  • 247 Answers

SOURCE: I have a 2005 GMC Sierra 1500 with a v6 and a 5

is your clutch pedal spongy if it is a hydraulic clutch there will be a small resivoir on the fire wall next to the brake master cylinder,if so check the fluid level,the noise your describing sounds like drive shaft u-joints,or cv axle drive shafts in front if its 4 wheel drive,block the wheels and put the truck in neutral,to release any tension on the drive shaft,go underneath,grab the driveshaft a foot behind the transmission,and push up an pull down on it while observing the u-joint in front of it if there is any looseness or play it is damaged,any movement up and down or left and right requires replacement,do the same to the other end at the rear axle,the rear axle u-joint is the most common failure,but check them both,

Posted on Oct 01, 2009

  • 1206 Answers

SOURCE: i have 1993 gmc 4l60e trans could some one tell me

Suburban,Yukon,Tahoes basically large suvs and trucks share the transmissions, but need to use vin number to know, dealer has that information if selling this transmission tell buyer to call dealer with their vin number to see if it is compatible.

Posted on Jan 20, 2010

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