First, do you really need to change plugs? The iridium tipped plugs that come standard in the Solara are good for 100,000 miles. You'd be driving 20,000 per year to need changing now.
Assuming it's time, the answer differs a bit between 4 and 6 cylinder cars. With the larger engine you have to remove the plastic cover first. For both, you'll find the plugs nestled under the coils (4 or 6) mounted atop the valve cover(s). Remove the coils to uncover the plugs (down in a hole). For the 6 cylinder, the manual says remove the intake plenum to reach the rear plugs. If you're double jointed and have appropriate tools this may not be absolutely necessary but it sure makes getting to the rear plugs a lot easier.
The appropriate spark plug numbers are in your owner's manual.
Cheers
To change spark plugs on a 1994 Toyota Camry, remove the black shafts. The spark plugs are down the four holes. Use a socket set with extension to reach the spark plugs. Replace old spark plugs with new ones.
The 07 Solara uses an Iridium tipped plug. The exact number depends on the engine you have (4 or 6 cylinder) so check your owners manual. Be aware (this is also in your manual) that spark plugs don't need replacement until you reach 100,000 miles. If you aren't there yet, don't worry about it. Cheers
Same relative position as the front plugs. They are just a lot harder to reach.
See here. http://www.4x4wire.com/toyota/maintenance/tacoma_4runner_30k/maintenancep3.html#plugs use gas line to get the plugs out - they are hard to reach and this will prevent you from stripping the threads when putting the new ones in.
I reach over and around the top of the engine to access the spark plugs.I reach over and around the top of the engine to access the spark plugs.
You either reach around the top to them, or you reach them from underneath.
Check your owner's manual. The Iridium tipped plugs used in most late model engines don't need changing for 100 thousand miles. That's a good thing since (on the V-6 anyway) the rear plugs are a little tough to reach. If yours is the V-6 here's something to consider. The cam drive belt is scheduled for a change at 90 thousand miles. Since so many items are removed for that service anyway it makes sense to change the plugs and water pump at that point. Cheers
Remove the coil pack for each spark plug, then reach inside the hole with a ratchet extension and unscrew them.
Remove cover on top of engine,pull plug wires straight up.The spark plugs will be down in a hole for each cylinder.You need a spark plug socket and a long extention to reach them.
Remove the plastic cover plate on top of engine and you will see 4 holes in a line which is where the spark plugs are recessed into, you will need a socket set with long extension arm to reach the plugs. hope this helps. Iain.
you will have to remove the front wheels and go through the wheel well. it is nessasary to have a 24" extension to reach the plugs.
First you remove the spark plug wires from each of the spark plugs, being careful not to wreck the wires. then you get a deep well socket that fits around the spark plugs. then you take out each of the spark plugs. get the new spark plugs and insert them in the spark plug holes. tighten them up and put the spark plug wires back on the plugs. I find there is more room to work if you jack up the front of the truck and remove the wheels. With a long extension you can easily reach five of them thru the wheel well. The one behind the steering shaft on the drivers side is a challenge.