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How to fix ignition key cylinder on 1990 gmc sierra truck

How to replace the key cylinder that starts the truck

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Ajkill
  • 2035 Answers

SOURCE: 1990 Jeep Cherokee Ignition key replacement

Removal & Installation
Without Air Bag
See Figures 1, 2, 3 and 4

  1. Remove the turn signal switch.
  2. Insert the key in the lock cylinder and turn it to the ON position.
0900c152800a9f7f.jpgFig. 1: Using a pair of needle nose pliers, remove the key warning buzzer switch and contacts from the steering column
  1. Remove the key warning buzzer switch and contacts AS AN ASSEMBLY using needle-nosed pliers, or a paper clip with a 90° bend.
0900c152800a9f80.jpgFig. 2: Lock cylinder retaining screwSome steering columns may have a retaining screw holding the lock cylinder in the column. When servicing this type, simply remove the retaining screw and remove the lock cylinder.
0900c152800a9f81.jpgFig. 3: Using a small thin bladed tool, press in the ignition lock clinder retaining tab ... 0900c152800a9f82.jpgFig. 4: ... then pull out the lock cylinder from the steering column
  1. With the ignition switch still in the ON position, insert a thin screwdriver into the slot adjacent to the switch attaching screw boss (right-hand slot). Depress the spring latch located at the bottom of the slot to release the lock cylinder.
  2. Remove the lock cylinder.
To install:
  1. To install the lock cylinder, turn the key to the LOCK position. Insert the lock cylinder in to the housing far enough to contact the drive tang. Force it inward and move the ignition switch actuator rod up and down to align the components. When the components align, the cylinder will move inward and the spring-loaded retainer will snap into place locking the lock cylinder in the housing.
If the lock cylinder is retained by a screw, tighten the screw to 40 inch lbs. (5 Nm).
  1. Install the key warning buzzer switch.
  2. Follow the ignition switch installation procedures to adjust the ignition switch.
  3. Install the turn signal switch.
With Air Bag
Please refer to the ignition switch removal and installation procedure.50c573d.jpg73cc55f.jpgb9448d0.jpg278f367.jpg

Posted on Oct 22, 2008

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  • 1118 Answers

SOURCE: Replace starter on 1992 GMC Sierra pickup truck

First thing unhook positive battery cable, unhook main cable on starter selanoid and small wire on selanoid (there may be 2 small wires) There may be a bracket on front of starter that has to be removed, and then the 2 main bolts that hold it to engine block and it should come out.

Posted on Feb 14, 2009

  • 6 Answers

SOURCE: 1997 GMC Sierra Truck Ignition Switch

its a long process,you need a steering wheel puller, once its off take the hazard button assembly out, take the turn signal loose, pull old ignition out, carefully install new one, and reverse procedure and always if u get confused i would highly recomend
a chiltons manual they explain things great

Posted on Feb 16, 2009

  • 59 Answers

SOURCE: 1997 GMC Sierra Ignition Switch Replacement

take off the cover on the top and bottom of the steering column just behind the wheel. pop the tilt lever out simply just by grabbing it and give it a good tug. then once you have the new switch and you get in there your going to need an inverted torx socket to remove the small bolts that hold the switch to the column. do not move the gear on the new switch make sure it lines up exactly as the old one did!!!!!!!!!!!!

Posted on Mar 15, 2009

  • 432 Answers

SOURCE: 1990 GMC Sierra 1500 pickup. Windshield wipers, Cruise Control

May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.

Posted on Feb 05, 2010

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