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Low Power Mystery (Ignition Coil Service)

Posted March 15, 2020 10:28 AM

It's no fun when your vehicle just doesn't run the way it used to.   You may notice (especially in cold weather) the engine won't start easily or when it does start, it doesn't run smoothly. It may not have much power at all. You also may have had to stop at the gas station more often, a sign your fuel economy isn't what it used to be. 

There could be a few different things that cause those symptoms, but one culprit could be a bad ignition coil. The coil takes the voltage from your battery and multiplies it before that power is sent over to a spark plug. That allows the plug to fire off a good jolt of electricity that ignites the fuel in your cylinder and powers the engine. 

There's usually one ignition coil for each cylinder (or sometimes for a pair of cylinders). If only one of them is not pushing out enough electricity, it can cause big trouble with your engine performance.  Other signs of a bad ignition coil include engine backfire, an oil leak and your Check Engine light coming on.   When that light comes on and you have some of those other signs, you need to have your repair facility check things out fairly soon because you may be damaging your engine and wind up with a far more expensive repair.

A technician will check for a computer code to pinpoint which cylinder is having the problem.  Using other diagnostics, the technician can rule out other components that might be causing the engine to misfire.  Ignition coils usually last 100,000 miles/160,000 km, but other engine conditions can cause them to fail before then. 

Your service advisor may suggest getting all your coils replaced even though only one is malfunctioning. That's probably a good idea in a higher mileage vehicle since the other coils may be close to failure, too. It's also wise to do that if your vehicle's coils are located in a hard-to-reach spot so you likely won't have to spend the money for that labor again when another one fails.

Alternative Automotive
137 S Vinewood St
Escondido, CA 92029
(760) 480-0851
http://www.alternativeautoescondido.net



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what our customers say

The team is dependable and genuine. Highly recommend!
J
, 08/22/2022

I have been going to Alternative Automotive for over twenty years. There has never been a time when I have not been greeted and welcomed. I have always been pleased with their service on my cars. I wouldn't go anywhere else.
C
, 08/07/2022

Great service, quality service. Always upfront as to any issues, no hard sell. You can trust what they say.
R
, 07/12/2022

First experience with Alternative Automotive was a great one. My car broke down and Daniel and the team had me in and out in no time and back on the road. They were very professional and honest to work with. I will definitely be back next time I need service for my autos.
M
, 06/11/2022

Jeff is an amazing service advisor ready to help you get your car serviced and any needed repairs done quickly and reliably.
M
, 05/27/2022

Daniel and George are great! Friendly, knowledgeable, and fair!
J
, 05/04/2022

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