Question about 1996 Ford Contour

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Changing spark plugs on my 96 ford contour

I need to know how to change the spark plugs on my 96 ford contour

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  • 4 more comments 
  • yadayada
    yadayada May 11, 2010

    need to know what engine u have

  • Carl Lee Apr 25, 2013

    so do i need to join you ?

  • Carl Lee Apr 25, 2013

    2.0L

  • Carl Lee Apr 25, 2013

    ok will hope to see you on facebook

  • Leon's Houston
    Leon's Houston Aug 14, 2014

    the combustion chamber has trash down in where spark plugs go

  • Leon's Houston
    Leon's Houston Aug 14, 2014

    the combustion chamber where the spark plugs go have trash down in it's

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  • Ford Master
  • 2,984 Answers

A set of spark plugs usually requires replacement after about 20,000–30,000 miles (32,000–48,000 km), depending on your style of driving. In normal operation plug gap increases about 0.001 in. (0.025mm) for every 2500 miles (4000 km). As the gap increases, the plug's voltage requirement also increases. It requires a greater voltage to jump the wider gap and about two to three times as much voltage to fire the plug at high speeds than at idle. The improved air/fuel ratio control of modern fuel injection, combined with the higher voltage output of modern ignition systems, will often allow an engine to run significantly longer on a set of standard spark plugs, but keep in mind that efficiency will drop as the gap widens (along with fuel economy and power). When you're removing spark plugs, work on one at a time. Don't start by removing the plug wires all at once, because, unless you number them, they may become mixed up. Take a minute before you begin and number the wires with tape.

  1. Disconnect the negative battery cable.
  2. If the vehicle has been run recently, allow the engine to thoroughly cool.
  3. Remove the spark plug cover(s), if equipped.
  4. On the 2.5L engine remove the ignition coil assembly from the rear valve cover. See Section 2 for the procedure. Remove the water pump pulley cover.
  5. Carefully twist the spark plug wire boot to loosen it, then pull upward and remove the boot from the plug. Be sure to pull on the boot and not on the wire, otherwise the connector located inside the boot may become separated.
  6. Using compressed air, blow any water or debris from the spark plug well to assure that no harmful contaminants are allowed to enter the combustion chamber when the spark plug is removed. If compressed air is not available, use a vacuum to clean the area. NOTE: Remove the spark plugs when the engine is cold, if possible, to prevent damage to the threads. If removal of the plugs is difficult, apply a few drops of penetrating oil or silicone spray to the area around the base of the plug, and allow it a few minutes to work.
  7. Using a spark plug socket that is equipped with a rubber insert to properly hold the plug, turn the spark plug counterclockwise to loosen and remove the spark plug from the bore. WARNING
    Be sure not to use a flexible extension on the socket. Use of a flexible extension may allow a shear force to be applied to the plug. A shear force could break the plug off in the cylinder head, leading to costly and frustrating repairs.
  8. Remove each plug and inspect the plug even if you are replacing them with new ones. An inspection can reveal a great deal of information on the overall condition of an engine. Use the condition charts in this section as a guide. To install:
  9. Inspect the spark plug boot for tears or damage. If a damaged boot is found, the spark plug wire must be replaced.
  10. Using a wire feeler gauge, check and adjust the spark plug gap. When using a gauge, the proper size should pass between the electrodes with a slight drag. The next larger size should not be able to pass while the next smaller size should pass freely.
  11. Carefully thread the plug into the bore by hand. A handy tool to use to install spark plugs are the flexible rubber installation tools that are available at most auto parts stores, in place of this tool an old plug wire boot or a piece of fuel line long enough to fit to the plug hole is a good alternative. If resistance is felt before the plug is almost completely threaded, back the plug out and begin threading again.
  12. Carefully tighten the spark plug. If the plug you are installing is equipped with a crush washer, seat the plug, then tighten about 1⁄4 turn to crush the washer. If you are installing a tapered seat plug, tighten the plug to specifications provided by the vehicle or plug manufacturer.
  13. Apply a small amount of silicone dielectric compound to the end of the spark plug lead or inside the spark plug boot to prevent sticking, then install the boot to the spark plug and push until it clicks into place. The click may be felt or heard, then gently pull back on the boot to assure proper contact.
  14. On the 2.5L engine, install the coil pack and the water pump pulley.
  15. Install the spark plug cover(s), if removed.
  16. Connect the negative battery cable.

Posted on May 13, 2009

  • 6 more comments 
  • Greg Bernett
    Greg Bernett May 13, 2009


    Test pic

  • Greg Bernett
    Greg Bernett May 13, 2009

    REMOVAL & INSTALLATION





    Fig. 1: On some later models, it is necessary to remove a cover to access the spark plugs

  • Greg Bernett
    Greg Bernett May 13, 2009

    Fig. 2: Carefully twist the boot end of the spark plug wire .



  • Greg Bernett
    Greg Bernett May 13, 2009

    Fig. 3: . . . and withdraw the spark plug wire boot from the cylinder head



  • Greg Bernett
    Greg Bernett May 13, 2009

    Fig. 4: Using the appropriate sized spark plug socket, necessary extensions and drive tools, remove the plug from the engine — the spark plugs are usually 5⁄8



  • Greg Bernett
    Greg Bernett May 13, 2009

    Fig. 5: After removing the plug from the engine, inspect it using the spark plug condition charts in this section to determine the running condition of your engine



  • Greg Bernett
    Greg Bernett May 13, 2009

    Fig. 6: When installing the plugs into the engine, start the plugs by hand. A piece of hose or rubber fuel line makes this job easier



  • Greg Bernett
    Greg Bernett May 13, 2009

    Hope this helps and please don't forget to rate!

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