Friday, June 6, 2014
How to Locate the PVC Valve on a 2003 Buick LeSabre
The 2003 Buick Lesabre has a history of engine gasket failures. The intake manifold and oil pan gaskets are common replacement requirements that can cost you in excess of $700 to have repaired. Replacing the Positive Crankcase Ventilation Valve (PCV) can keep crankcase gases from building up in the engine and extend the life of the gaskets. The PCV valve is often overlooked as a maintenance item on this engine due to its location.
Instructions
- 1
Open the hood. Remove the oil filler cap. Remove the oil filler neck by twisting it counterclockwise until it releases. Remove the engine cover by lifting the front of it and pulling it towards you to release the rear mounting tap.
2Locate the MAP sensor on the intake manifold towards the front of the engine. This sensor will have three wires- orange/black, light green, and grey. Lift the connector locking tab and remove the connector. Remove the MAP sensor by releasing the locking tabs with the screwdriver.
3Remove the PCV valve cover under the MAP sensor by pressing a 5/8 -inch socket against it and twisting it counterclockwise a quarter turn. Remove the PCV valve and the O-ring. Wipe oil and debris from the mounting area.
4Install the new PCV valve and O-ring by pressing it firmly into place. Install the PCV cover plate by pushing down on it with the socket and twisting it clockwise until it stops. Replace the seal on the MAP sensor if it is damaged. Install the map sensor slowly, taking care not to damage the mounting tabs. Snap the wiring connector into place.
5Install the engine cover, making sure that the rear tab is inserted into the mounting bracket. Replace the seal on the oil filler neck if damaged. Install the oil filler neck. Install the oil filler cap.
Tuesday, December 10, 2013
How to Change the Bulb in a Taillight on a 2001 Buick LeSabre
The Buick LeSabre originated in 1951, but was not placed into production until the 1959 model year. The 2001 Buick LeSabre was available in a base model, and an upgraded Limited model. The 2001 LeSabre was equipped with a 3.8-liter V6 engine, capable of producing up to 205-horsepower and 230-foot-pounds of torque. The taillight bulbs in the rear of the LeSabre are enclosed within the taillight housing, which is fastened through the inside of the trunk.
Instructions
- 1
Open the trunk of the LeSabre.
2Remove the three plastic winged nuts from one side of the trunk, on the rear side of the taillight bulb assembly you are working on. You can use a pair of pliers to remove the winged nuts, if they are too tight to be removed by hand. Be careful not to snap the tabs off of the wing nuts with too much pressure. Peel the trunk liner off of the taillight studs and away from the taillight.
3Pull the taillight assembly away from the rear of the LeSabre, and rest the assembly on the rear bumper. Remove the taillight from the housing by turning it counterclockwise in relation to its position on the car.
4Pull the old taillight bulb out of the socket by hand. Insert a new taillight bulb using a paper towel or napkin around your hand. Do not touch the taillight bulb with your fingers directly.
5Reinstall the taillight bulb back into the assembly, and turn it clockwise to lock it in position. Install the taillight assembly back into the rear of the car.
6Push the trunk lining back onto the rear of the trunk, allowing the taillight assembly studs to go through the allotted holes. Install the plastic wing nuts onto the studs and tighten them by hand. No torque is needed to tighten the wing nuts.
7Follow Steps 2 through 6 to change the taillight bulb on the opposite side of the bulb you just replaced.
Thursday, November 21, 2013
How to Remove the Exhaust Manifold Gasket on a Buick LeSabre
An exhaust leak can be frustrating. While exhaust leaks are often difficult to identify, worn exhaust manifold gaskets are often the problem. Removing worn exhaust manifold gaskets and replacing them with new gaskets on a Buick LeSabre is a small, inexpensive project for a do-it-yourself mechanic. With a few tools and a bit of time, you can remove failing exhaust manifold gaskets and replace them with new gaskets to increase the performance of your Buick LeSabre.
Instructions
- 1
Allow the engine and exhaust manifold to completely cool.
2Disconnect any tubing from the exhaust manifold.
3Loosen and remove the exhaust manifold bolts. If the bolts are resistant, use a penetrating oil to loosen them.
4Remove the exhaust manifold and gaskets from the engine. The exhaust manifold in a Buick LeSabre is typically secured with two studs and two nuts.
5Clean the gasket areas on both the engine and exhaust manifold with a scraper and wire brush to remove any remaining material from the old gasket. A clean, smooth surface ensures proper installation of the new gaskets.
