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Check Engine Light Tips

1. The Check Engine light tells you the computer found a problem with your vehicle's running condition.

2. If the vehicle is drving OK, a Check Engine light is not a reason to pull over. But get the problem fixed soon.

3. In testing areas, you will fail your emissions test if the Check Engine light is on.

4. Fuel economy generally suffers when the Check Engine light is on.

5. An extended warranty covers emissions-related components that can trigger the Check Engine light. More information is at: epa.gov/obd/warranties.htm.

6. When the Check Engine light is on, one or more "trouble code(s)" are stored in the computer.

7. You can read and erase trouble codes using inexpensive code-reader tools from auto-parts stores; the tools are very easy to use.

8. The problems identified by the codes are frequently easy to fix (such as a loose gas cap), but some are complex, requiring professional diagnosis.

9. A trouble code indicates a circuit where the problem was identified, not necessarily the faulty component. Diagnosis is often necessary.

10. The Haynes OBD-II Techbook (Book #10206) is your source for late-model code information. If you have a 1995 or earlier model, get Book #10205. Both books can be found in the Techbook section of this site.

 

 
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Automotive Repair Manuals
 
General Motors Haynes Repair Manual covering Chevrolet Malibu (1997 thru 2003), Oldsmobile Alero (1999 thru 2003), Oldsmobile Cutlass (1997 thru 2000), and Pontiac Grand Am (1999 thru 2003)
38026
General Motors Haynes Repair Manual covering Chevrolet Malibu (1997 thru 2003), Oldsmobile Alero (1999 thru 2003), Oldsmobile Cutlass (1997 thru 2000), and Pontiac Grand Am (1999 thru 2003)

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Chevrolet Malibu (1997 thru 2003), Oldsmobile Alero (1999 thru 2003), Oldsmobile Cutlass (1997 thru 2000), and Pontiac Grand Am (1999 thru 2003) has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Chevrolet Malibu (1997 thru 2003), Oldsmobile Alero (1999 thru 2003), Oldsmobile Cutlass (1997 thru 2000), and Pontiac Grand Am (1999 thru 2003):

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


General Motors Haynes Repair Manual covering Chevrolet Malibu (1997 thru 2003), Oldsmobile Alero (1999 thru 2003), Oldsmobile Cutlass (1997 thru 2000), and Pontiac Grand Am (1999 thru 2003)


General Motors Haynes Repair Manual covering Cadillac Eldorado (1971 thru 1985), Cadillac Seville (1980 thru 1985), Oldsmobile Toronado (1971 thru 1985), and Buick Riviera (1979 thru 1985) all with gasoline engines
38030
General Motors Haynes Repair Manual covering Cadillac Eldorado (1971 thru 1985), Cadillac Seville (1980 thru 1985), Oldsmobile Toronado (1971 thru 1985), and Buick Riviera (1979 thru 1985) all with gasoline engines

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Cadillac Eldorado (1971 thru 1985), Cadillac Seville (1980 thru 1985), Oldsmobile Toronado (1971 thru 1985), and Buick Riviera (1979 thru 1985) all with gasoline engines has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Cadillac Eldorado (1971 thru 1985), Cadillac Seville (1980 thru 1985), Oldsmobile Toronado (1971 thru 1985), or Buick Riviera (1979 thru 1985) all with gasoline engines:

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


General Motors Haynes Repair Manual covering Cadillac Eldorado (1971 thru 1985), Cadillac Seville (1980 thru 1985), Oldsmobile Toronado (1971 thru 1985), and Buick Riviera (1979 thru 1985) all with gasoline engines


General Motors Haynes Repair Manual covering Cadillac Eldorado & Seville (1986 thru 1991), Cadillac Deville FWD (1986 thru 1993), Cadillac Fleetwood FWD (1986 thru 1992), Oldsmobile Toronado (1986 thru 1992), and Buick Riviera (1986 thru 1993)
38031
General Motors Haynes Repair Manual covering Cadillac Eldorado & Seville (1986 thru 1991), Cadillac Deville FWD (1986 thru 1993), Cadillac Fleetwood FWD (1986 thru 1992), Oldsmobile Toronado (1986 thru 1992), and Buick Riviera (1986 thru 1993)

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Cadillac Eldorado & Seville (1986 thru 1991), Cadillac Deville FWD (1986 thru 1993), Cadillac Fleetwood FWD (1986 thru 1992), Oldsmobile Toronado (1986 thru 1992), and Buick Riviera (1986 thru 1993) has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Cadillac Eldorado & Seville (1986 thru 1991), Cadillac Deville FWD (1986 thru 1993), Cadillac Fleetwood FWD (1986 thru 1992), Oldsmobile Toronado (1986 thru 1992), or Buick Riviera (1986 thru 1993):

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


General Motors Haynes Repair Manual covering Cadillac Eldorado & Seville (1986 thru 1991), Cadillac Deville FWD (1986 thru 1993), Cadillac Fleetwood FWD (1986 thru 1992), Oldsmobile Toronado (1986 thru 1992), and Buick Riviera (1986 thru 1993)


 
Automotive Repair Manuals
 
General Motors Haynes Repair Manual covering the Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Trans Sport models from 1990 thru 1996
38035
General Motors Haynes Repair Manual covering the Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Trans Sport models from 1990 thru 1996

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Trans Sport models from 1990 thru 1996 has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Trans Sport models from 1990 thru 1996:

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


General Motors Haynes Repair Manual covering the Chevrolet Lumina APV, Oldsmobile Silhouette and Pontiac Trans Sport models from 1990 thru 1996


General Motors Haynes Repair Manual covering the Chevrolet Venture, Oldsmobile Silhouette, Pontiac Trans Sport & Montana from 1997 thru 2005
38036
General Motors Haynes Repair Manual covering the Chevrolet Venture, Oldsmobile Silhouette, Pontiac Trans Sport & Montana from 1997 thru 2005

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Chevrolet Venture, Oldsmobile Silhouette, Pontiac Trans Sport & Montana from 1997 thru 2005 has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Chevrolet Venture, Oldsmobile Silhouette, or Pontiac Trans Sport & Montana from 1997 thru 2005:

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


General Motors Haynes Repair Manual covering the Chevrolet Venture, Oldsmobile Silhouette, Pontiac Trans Sport & Montana from 1997 thru 2005


Oldsmobile Cutlass Haynes Repair Manual for 1974 thru 1998 Covering V6 and V8 gasoline engines
73015
Oldsmobile Cutlass Haynes Repair Manual for 1974 thru 1998 Covering V6 and V8 gasoline engines

Our Price: $24.95
Sale Price: $22.45


Haynes Repair Manual for the Oldsmobile Cutlass for 1974 thru 1998 Covering V6 and V8 gasoline engines has clear instructions and plenty of photographs to help you perform anything from simple maintenance to basic repairs. Whether you're a beginner or a pro, you can save big with Haynes!


Complete coverage for your Oldsmobile Cutlass for 1974 thru 1998 Covering V6 and V8 gasoline engines:

--Routine Maintenance
--Tune-up procedures
--Engine repair
--Cooling and heating
--Air Conditioning
--Fuel and exhaust
--Emissions control
--Ignition
--Brakes
--Suspension and steering
--Electrical systems
--Wiring diagrams


Oldsmobile Cutlass Haynes Repair Manual for 1974 thru 1998 Covering V6 and V8 gasoline engines




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