Engine coils

LISA JOHNSON2

MEMBER
2008 NISSAN ALTIMA
2.5L
6 CYL
2WD
AUTOMATIC
120,000 MILES

The engine coils have silicone on them, if the coils are changed can the engine be salvaged?

Tuesday, September 21st, 2021 AT 6:14 PM

7 Replies

SQM

MECHANIC
6,383 POSTS

Hello,

Can you tell us little more details of the issue you are having?
Are you having misfiring issue? Does the engine run rough?
If the ignition coil(s) is/are bad you can simply replace them.
Please let me know what you got.
Thank you.

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Tuesday, September 21st, 2021 AT 6:18 PM

LISA JOHNSON2

MEMBER
4 POSTS

The car started shaking, rough idle, sputtering. It was bought from a private owner, it ran good the first few days. Had a tune up, a few days ago, and this morning all of the weird idling started. Took back to Jiffy Lube, to find out the coils had silicone on them. My question is, if I change the coils and spark plugs will that be resolved, or does the car need a new engine?

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Tuesday, September 21st, 2021 AT 6:25 PM

SQM

MECHANIC
6,383 POSTS

Is your check engine light illuminated? Typically when engine runs rough it will turn on that light.
If so you will need to get it scanned and get the code(s), which can help with the diagnostics.

Here is a guide that will help with this:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

It is unlikely you will need a new engine.
The best course of action would be to pinpoint the reason for the rough idle and fix it.

You said you had tune up done few days ago. Do you know what all that was changed?

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Tuesday, September 21st, 2021 AT 6:29 PM

LISA JOHNSON2

MEMBER
4 POSTS

Yes, the engine light is on. The spark plugs, wires and oil change. It didn't have those problems until this morning.

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Tuesday, September 21st, 2021 AT 6:37 PM

SQM

MECHANIC
6,383 POSTS

Since this started all of a sudden it is possible for a component to come loose if it was not secured properly. The code from the engine light can help determine which component is triggering the issue. Now it could be the coil(s), but you don't want to replace a part without being sure. As it can be a different reason you have this issue.