To replace the spark plugs on a 2005 Cadillac STS V6, first, ensure the engine is cool and disconnect the negative battery cable. Remove the engine cover if necessary, then carefully detach the ignition coils by unfastening their bolts and disconnecting the electrical connectors. Unscrew the old spark plugs using a spark plug socket, and install the new plugs by hand to avoid cross-threading, then torque them to the manufacturer’s specifications. Finally, reattach the ignition coils and engine cover, and reconnect the battery.
To remove the spark plugs on a 2005 Cadillac STS, first, ensure the engine is cool and disconnect the negative battery cable. Remove the engine cover if necessary, then carefully disconnect the ignition coil connectors and unbolt the coils to access the spark plugs. Use a spark plug socket to carefully unscrew and remove the old spark plugs, taking care not to damage the threads in the cylinder head. Finally, replace the plugs with new ones, reassemble the ignition coils, and reconnect the battery.
You will have to remove the intake, and replace the gaskets (they are reuse able but you should have new ones on hand in case they are damaged. The spark plugs installed in the engine are designed to last for 100k miles, unless you have a misfire, then there really no reason to replace them.
I would replace the spark plugs after 50K, the wires and plugs again at 100K.
on the 3.5 v6 take off the engine cover, unscrew the coilpacks and take out the spark plugs.
Changing spark plugs is relatively easy. Disconnect the batter and spark plug cables, and remove the old spark plugs. Next replace the spark plugs with new ones, reconnect the spark plug cables and battery.
After 105,000 miles. Nissan Maxima spark plugs are platinum-tipped and lasts for many years.
To change the spark plugs on a 2005 Cadillac CTS 3.6, first, ensure the engine is cool and disconnect the battery. Remove the engine cover to access the spark plugs, then carefully disconnect the ignition coil connectors and remove the coils. Use a spark plug socket to unscrew the old spark plugs, then install the new ones, tightening them to the manufacturer's specifications. Reassemble by reinstalling the coils and connectors, followed by the engine cover, and reconnect the battery.
Take it to a Toyota dealership
How to change the spark plugs
get a 3/8 in.drive Rachet,w/a 10in.3/8 extension,plus your spark plug Socket.that will do it!
u take the old ones out and replace them by color
NGK platinum plugs