Tuesday, December 10, 2013
How to Install a Brake Control Box on a 91 Chevy
Chevrolet vehicles made in 1991 typically have an anti-lock braking system, or ABS, to improve the vehicles braking ability during an emergency stop. An electronic brake control module, or EBCM, monitors the rotation speed of each wheel. The EBCM decreases the braking force to a wheel when it detects that the wheel is rotating more slowly than the other wheels. The procedure for installing the EBCM is generally the same among many Chevrolet cars made from 1982 to 1994.
Instructions
- 1
Disconnect the cable from the negative battery terminal with a socket wrench. An electrical discharge from the battery can damage the EBCM when you remove it.
2Unplug the electrical connectors from the EBCM. The EBCM is a small, box-like component mounted to the dash panel on the drivers side. It typically has two electrical connectors.
3Remove the three hex head screws from the EBCM with a hex wrench. Detach the EBCM from the dash panel. Remove it from the vehicle.
4Align the holes in the grommets on the new EBCM with the corresponding holes in the dash panel. Hold the EBCM to the dash panel.
5Attach the hex head screws to the EBCM with a hex wrench. Torque the screws to 17 pound-feet with a torque wrench.
6Attach the electrical connectors to the EBCM and connect the cable for the negative battery terminal with a socket wrench.
Monday, November 4, 2013
How to Change a 91 Pontiac Sunbird Heater
The Pontiac Sunbird was a small car made by the Pontiac division of General Motors from 1975 to 1994. The third generation of this series included the 1988 through 1994 models, and was available in a variety of body styles. The heater in a 1991 Pontiac Sunbird contains hot coolant from the engine that radiates heat into the interior of the car when the heater is turned on. The procedure for replacing the heater is generally the same for all versions of the 1991 Sunbird.
Instructions
- 1
Remove the cable from the negative battery terminal with a socket wrench to ensure you dont start the engine inadvertently. Place a drain pan under the radiator, and open the drain with a socket wrench. Drain the coolant and replace the drain plug. Raise the vehicle with a floor jack, and support it safely on jack stands.
2Remove the strut mount for the rear lateral transaxle with a socket wrench, if your vehicle is so equipped. Detach the drain line and coolant hoses from the heater. Lower the vehicle.
3Disconnect the sound insulators from the floor of the vehicle with a socket wrench. Remove the opening filler for the steering column, and remove the air outlet duct from the floor of the vehicle.
4Remove the retaining bolts for the heater cover with a socket wrench, and detach the cover. Disconnect the retaining straps for the heater core, and remove the heater core from the vehicle.
5Install the new heater core and attach its retaining straps. Replace the cover for the heater with a socket wrench. Install the outlet duct and sound insulators to the floor of the vehicle. Connect the filler for the steering column.
6Raise the vehicle and support it on jack stands. Connect the hoses and drain line to the heater, and attach their clamps. Install the strut mount for the rear lateral transaxle, if your vehicle is so equipped.
7Lower the vehicle and replace the coolant in the radiator. Check the vehicle for coolant leaks, and ensure the new heater is functioning properly.
