GM 12679799 Spark Plug Asm,Gasoline Engine Ignition

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All the above covered vehicles incorporate transversely slanted engines that locate the spark plugs at the front and rear of the engine bay. The tools required for spark plug replacement are; a spark plug socket which fits to a ratchet, various different extensions, and a gap gauge which measures the gaps on the spark plugs that are new to the vehicle. When removing the wire boots from the spark plugs it is advised that students use the plug wire removal tool because the wire boots on the new models can be very tight to remove. It is recommended to use the torque wrench for tightening of new plugs and avoiding the starting of engine for some time for the plug replacement process. When ever replacing spark plugs, new ones should be purchased before hand, gapped to the correct size and put in one at a time to ensure that the correct kind of spark plug is bought for the particular engine. Before you can remove any of the plugs make sure that the whole engine is cool and have a look at the new plugs for defects when setting the gaps. Platinum and iridium spark plugs are usually pre-gapped, but if the gap is measured, the spark plug should be held with the care in order not to damage the coating of the electrodes. The gap can be checked using a proper thickness gauge and corrective measures if applicable, must be done gingerly because the side electrode is made of porcelain insulator. For the models from 1999 the spark plug wire has to be disconnected by pulling on the boot, for the 2000 models and newer, two ignition coil assemblies will have to be removed to access spark plugs. Before removing the spark plug the ports should be blown with air to ensure that no debris is cleaned off the spark plug hole. Because these spark plugs are fairly buried inside the engine, it is necessary to use a spark plug socket and an extension in order to get them out. Before the new plugs are fitted it is not a bad idea to ensure the threads get coated with a thin layer of the anti-seize compound. The new plugs should be threaded in by hand with a view of having to use a torque wrench or ratchet to tighten them; one should use a short rubber hose while threading them in. Upon fitting a new plug, the plug wire or boot should be twisted on and similarly done for all the plugs again noting that this is a process that should be done one at a time to avoid confusion of the wires. Last but not the least; the ignition coil assemblies should be reinstated.

All the above covered vehicles incorporate transversely slanted engines that locate the spark plugs at the front and rear of the engine bay. The tools required for spark plug replacement are; a spark plug socket which fits to a ratchet, various different extensions, and a gap gauge which measures the gaps on the spark plugs that are new to the vehicle. When removing the wire boots from the spark plugs it is advised that students use the plug wire removal tool because the wire boots on the new models can be very tight to remove. It is recommended to use the torque wrench for tightening of new plugs and avoiding the starting of engine for some time for the plug replacement process. When ever replacing spark plugs, new ones should be purchased before hand, gapped to the correct size and put in one at a time to ensure that the correct kind of spark plug is bought for the particular engine. Before you can remove any of the plugs make sure that the whole engine is cool and have a look at the new plugs for defects when setting the gaps. Platinum and iridium spark plugs are usually pre-gapped, but if the gap is measured, the spark plug should be held with the care in order not to damage the coating of the electrodes. The gap can be checked using a proper thickness gauge and corrective measures if applicable, must be done gingerly because the side electrode is made of porcelain insulator. For the models from 1999 the spark plug wire has to be disconnected by pulling on the boot, for the 2000 models and newer, two ignition coil assemblies will have to be removed to access spark plugs. Before removing the spark plug the ports should be blown with air to ensure that no debris is cleaned off the spark plug hole. Because these spark plugs are fairly buried inside the engine, it is necessary to use a spark plug socket and an extension in order to get them out. Before the new plugs are fitted it is not a bad idea to ensure the threads get coated with a thin layer of the anti-seize compound. The new plugs should be threaded in by hand with a view of having to use a torque wrench or ratchet to tighten them; one should use a short rubber hose while threading them in. Upon fitting a new plug, the plug wire or boot should be twisted on and similarly done for all the plugs again noting that this is a process that should be done one at a time to avoid confusion of the wires. Last but not the least; the ignition coil assemblies should be reinstated.