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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 67 (AUTOMATIC TRANSMISSION SERVICING)REMOVAL & INSTALLATIONPARK/NEUTRAL POSITION SWITCHINSTALLATION
1999 GMC Forward Control 5.7 R, Automatic

Park/Neutral Position Switch: Installation

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation
WARNING: This page is about a different car, the 2002 GMC Sonoma, 2002 GMC Jimmy, 2002 Chevrolet S10 Pickup, and 2002 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If a new switch is being installed, the switch will come with a positive assurance bracket. The positive assurance bracket aligns the new switch in it proper position for installation and the use of neutral position adjustment tool will not be necessary.
  1. Install the switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats. See Fig 1. Slide the switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
  2. Install the switch to the transmission with 2 bolts finger tight. Position the alignment tool onto the PNP switch. See Fig 2. Ensure the 2 slots on the switch where the manual shaft is inserted are lined up with the lower 2 tabs on the tool.
  3. Rotate the tool until the upper locator pin on the tool is lined up with the slot on the top of the switch. Tighten the bolts securing the switch to specification. See TORQUE SPECIFICATIONS .
  4. Remove the alignment tool from the switch. If installing a new switch, remove the positive assurance bracket at this time. Connect the electrical connectors to the switch.
  5. Install the transmission control lever to the manual shaft with the nut. Tighten the control lever nut to specification. See TORQUE SPECIFICATIONS . Lower the vehicle.
  6. Check the switch for proper operation. The engine must start in the Park and Neutral positions only. If proper operation of the switch can not be obtained, replace the switch.
Fig 1: Removing & Installing Park/Neutral Position Switch
G00088349Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.