This Haynes DIY repair, service and maintenance manual, covers 1988-2007 General Motors automobiles, including:
Book Excerpt: Buick Regal 1988-2004; Chevy Lumina 1990-1994; Olds Cutlass Supreme 1988-1997; Pontiac Grand Prix Repair Manual 1988-2007
- Buick Regal, 1988-2004
- Oldsmobile Cutlass Supreme, 1988-1997
- Pontiac Grand Prix, 1988-2007
- Chevrolet Lumina, 1990-1994
GENERAL INFORMATION: ENGINE OVERHAUL
Refer to illustrations 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6
BODY REPAIR: MINOR DAMAGE
Included in this portion of Chapter 2 are general information and diagnostic testing procedures for determining the overall mechanical condition of your engine.
The information ranges from advice concerning preparation for an overhaul and the purchase of replacement parts and/or components to detailed, step-by-step procedures covering removal and installation.
The following sections have been written to help you determine whether your engine needs to be overhauled and how to remove and install it once you've determined it needs to be rebuilt. For more information concerning in-vehicle engine repair, see Chapter 2A, 2B, 2C, 2D, 2E, 2F, or 2G.
It's not always easy to determine when, or if an engine should be completely overhauled, because a number of factors must be considered.
High mileage is not necessarily an indication that an overhaul is needed, while low mileage doesn't preclude the need for an overhaul. An engine that has had regular and frequent oil and filter changes, as well as other required maintenance, will most likely give many thousands of miles of reliable service. Conversely, a neglected engine may require an overhaul very early in it's service life.
Excessive oil consumption is an indication that piston rings, valve seats and/or valve guides are in need of attention. Make sure that oil leaks aren't responsible before deciding that the rings an/or guides are bad. Perform a cylinder compression check to determine the extent of the work required (see Section 3). Also check vacuum readings under various conditions (see Section 4).
Check the oil pressure with a gauge installed in the oil pressure sending unit and compare it to this Chapter's Specifications (see Section 2). If it is extremely low, the bearings and/or pump are probably worn out.
Loss of power, rough running, knocking or metallic engine noises, excessive valve train noise and high fuel consumption rates may also point to the need for an overhaul, especially if they are all present at the same time. If a complete tune-up doesn't remedy the situation, major mechanical work is the only solution.
The following repair procedures are for minor scratches and gouges. Repair of more serious damage should be left to a dealer service department or qualified auto body shop. Below is a list of the equipment and materials necessary to perform the following repair procedures on plastic body panels. Although a specific brand of material may be mentioned, it should be noted that equivalent products from other manufacturers may be used instead.
- Wax , grease and silicone removing solvent
- Cloth-backed body tape
- Sanding discs
- Drill motor with three-inch disc holder
- Hand sanding block
- Rubber squeegees
- Non-porous mixing palette
- Wood paddle or putty knife
- Curved tooth body file
- Plastic body panel repair compound and material
Subject: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Buick Regal, Chevy Lumina, Olds Cutlass Supreme, Pontiac Grand Prix service, maintenance, repair. ISBN-10: 1563927268 | ISBN-13: 9781563927263 | Haynes 38010