GMC 19301807 Spark Plug Asm

The spark plugs located at the front of the engine on 2.0U2.2L four-cylinder models, and are between the camshaft housings underneath the ignition coil/module assembly on the 2.3L (Quad-4) four-cylinder engine. V6 engines have three plugs at the front and three at the rear side of the engine. To replace them you will need a spark plug socket, various extensions, a gap gauge and a torque wrench. Aluminum cylinder head damage can be prevented during removal or installation of spark plugs if you allow for cooling down of an engine. Purchase the right type of plug for your engine and adjust its gaps as necessary. Check that there are no faults with new plugs and use wire type gauges to close up any gaps detected in them. Remove one wire from each plug without pulling on it directly. Any debris may be blown out by using compressed air or a bicycle pump through the spark plug hole. The old plug should be removed counterclockwise with a spark plug socket. Understand running condition of engine by comparing old plug used on it with others in case of more than one cylinder plugs replacements being needed together). Thread that hole again so that it is tightened with reference to its torque specifications using either a torque wrench or ratchet, placing new plug in place hitherto occupied by the old one; after that twisting tube should be made until seated well (Zaloga 2015). This is essential because; you need to do this after attaching the twisted wires into new plug just seated inside position where other ones were located previously (Zaloga 2015). The remaining wires should be repeated for all other spark plugs, one after another.

The spark plugs are located on the sides of the engine.

While waiting, check the new plugs for defects and adjust the gaps.

Long brown tapering stains signal a faulty joint, necessitating replacement.

The new spark plugs should be tightened using a torque wrench.

You should assess their accessibility, especially if the car has air-conditioning or power steering, as special tools may be necessary.