The check engine light is on engine is hesitating or misfiring?

2002 LINCOLN TOWN CAR
91,000 MILES • V8
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NEW YORK 123
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I replaced the spark plugs. At that time the manifold gasket was leaking. Replaced that. The mechanic said to replace the boot coils ASAP. Took to get second opinion. They said one injector seized up. They said it was not the boot coils. Which one do I go with? Thankyou
Apr 6, 2021 at 9:00 AM
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KASEKENNY
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Unfortunately there is no way to know which is correct based on this info. What codes were there? If there was an injector code then I would go with the injector but is there a misfire on one cylinder? If so, swap the injector to another cylinder and if the misfire moves to that cylinder then that is the issue.

Here are guides that will help with this but again, I would move the injector and go from there.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/engine-hesitates

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

Let us know what you find with this and we can go from there. Thanks
Apr 7, 2021 at 11:55 AM
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