[Squash]

Ok guys. So you DO NOT need to remove the intake manifold to replace the back coils/plugs.

I replaced all but one. Not because of an access issue but a previous owner seemed to have broke the plastic connector to one of the plugs.*pic attached*

They seemed to have botched it with a zip tie to hold it in place.

Few questions, what is this going to cost? I can replace the coil/plug but that harness needs to get fixed. Its hard to see back there well enough to reproduce their zip tie fix. And I hate botch fixes.

 

[speleos]

Few questions, what is this going to cost?

That's only one question. LOL

Depends on how it's fixed. Someone could replace either just the connector, or the entire coil/plug harness on that side. Contact your dealer, or a local repair shop for their estimates on parts if you DIY, or parts and labor for them to do it.

 

[Squash]

That's only one question. LOL

Depends on how it's fixed. Someone could replace either just the connector, or the entire coil/plug harness on that side. Contact your dealer, or a local repair shop for their estimates on parts if you DIY, or parts and labor for them to do it.

Well Speleos.. it's finally time to replace. I managed to get 90k miles in my ownership without changing that single coil.. now I'm getting the random misfires code p0300, and terrible gas mileage.. not to mention the gas smell. . Good God wish me luck

 

[Squash]

So far so good, I'll swap one of the front plugs too as it's newer. Getting that zip tie tight may be tricky tho!

 

[Squash]

Coil/plug changed. Shop says you gotta take off manifold but you don't need to if you use..

 

[Squash]

So I still had the misfire after replacing the rear coil. Question! How much of a warning sign is this quantity of oil in the spark plug tubes? I only get oil in the front three but this is like after 7 months or so.

I also had this metal in one of the tubes on the plug:

I'm a bit worried as I have to relocate from California to Texas so this will be interesting I suppose.

 

[Squash]

Yea so I'm still misfiring after cleaning the oil off the plugs. Rough idling. What should be next step? I'm at 176K miles. Fuel filter? Maybe a vacuum leak? Just bring it in to a shop for diagnostic? Is there anything in particular that I should make sure gets tested?

 

[Squash]

👍 Finally got a cylinder specific code! P0301.
Had changed that one out previously and it lasted 70K miles so I guess it was time.

Update
So far so good two days around a 100 miles and no CEL and no misfires.