Denso Plug Change 2000 Taco 3.4 L V6

[Vapor38]

I'm in the process of changing my plugs on my 2000 Taco 3.4L V6. After reading up on what I might find under the hood, I proceeded to take a quick peek at the first plug. A two-prong denso just like a thought... I'm a little skeptical since I’m so used to seeing one prong. Any suggestions out there???? GAP??? I had the plugs changed at the dealer the first time so I never saw what was done!! My truck has been the best I ever owned, 115,000 Miles and still runs like the day I rolled it off the show room floor.

Thanks in Advance, Chuck Alexander

[Brian R.]

Don't gap the plugs, just install them (16-mm plug socket). Be sure an put some antiseize compound on the plug threads and torque them to 13 ft-lbs. When you are installing the new plugs, insert them into a 12-in length of heater hose and use the hose to start the plugs. If they bind, they are cross-threaded. Back it out and start again. Don't force them. It is easy to ruin the threads in the head since they are aluminum and really soft.

While your there, check the resistance of the plug wires. Maximum resistance is 25 kOhm per wire. Much more than that, check the terminals. If the terminals are ok, replace the set.

[TGates81]

I know Toyota uses the two prong denso plugs for the v6's out of the factory.

[Brian R.]

Toyota says on the emissions sticker to use a two-pronged plug. Go with it.