3rd gen 4runner spark plug change **pic heavy**

So tacomaworld has a write up for spark plug install on tacomas. What about us 4runner dudes and dudettes? Well here is my write up with photos on a 3rd generation spark plug install:

We are going to start with the driver's side of the 4runner:



Went ahead and picked up an OEM set of spark plugs and spark plug wires:



Notice the wires on the 4runner are numbered. The new wiring will have the same numbering system. We need to make sure that we replace each wire with its corresponding number!



Before starting job, scare off any nearby roosters. They tend to be bad omens when working on vehicles.



We need to remove some stuff out of the way so we can have room to work with:

Removing ground wire and nut



Diagnostics plug:



Once these are out of the way we should be able to have full access to the first spark plug wire, tug on it to pull out. Gently. If its stubborn, twist and pull. Work it slowly.



Careful not to drop any debris once it has been removed:



Well need a ratchet and a spark plug socket, an extension is required.





Here I pulled out the spark plug:



Compare with the new ones to make sure we bought the same ones. The used spark plugs look good. Oily, burnt or broken spark plugs are an indication of engine issues.



To install the new plugs, I recommend using anti seize lubricant. This prevents the spark plugs from sticking and allows easy removal in the future:



Apply lightly:



Install new spark plug carefully, making sure it will not cross thread. Tighten snugly.



To get to the next spark plug, we are going to have to remove some hoses temporarily or move them out of the way.






Hose bracket:



Removing these will allow access to the second spark plug:



Lightly add anti sieze and install the same manner as the first one.

Accessing the third spark plug is not so difficult, will need to just push some hoses out of the way:



I recommend installing the spark plug wiring as you install each spark plug. This prevents mix ups and makes sure that we are installing the right wire at the right plug. Remember the numbering scheme on the wiring!

Finalized drivers side:



Now the passenger side involves a little more work to access all three plugs:



Removing hose from air box assembly:



Loosen screws and clamps:





Once lose, the air box assembly can be twisted and removed:



Revealing the spark plugs..they look different!



Notice that the end of the spark plugs wires are different than the drivers side:



See the letter P? That's where they plug at!



Here, I remove the wiring, careful not to break the retaining clips!



Once the two wires up the coils are removed, the spark plugs can be replaced the same manner as the driver's side!

Remember to use anti sieze, don't over tighten, and thread carefully!

 

Man you are like a write up guru.

 

Thanks!