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Toyota 4Runner Ignition Coil

98 items

Replace a weak ignition coil before misfires, rough starts, or poor acceleration turn into bigger engine trouble. Find coils for everyday repair and maintenance.

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ÜRO Parts TY1319484 Ignition CoilÜRO Parts TY1319484 Ignition Coil
ÜRO PartsPart # TY1319484
ÜRO Parts TY1319484 Ignition Coil
4.534 Reviews
$33.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2022-2023 Lexus IS500, 2018-2023 Lexus LC500, 2016-2023 Toyota Tacoma, 2016-2020 Lexus GS F, 2015-2022 Lexus RC F, 2013-2015 Scion xB, 2011-2011 Toyota Corolla, 2010-2011 Toyota Camry, 2010-2010 Toyota 4Runner, 2010-2010 Toyota Corolla, 2009-2013 Toyota Matrix, 2009-2012 Scion xB, 2009-2009 Toyota 4Runner, 2009-2009 Toyota Camry, 2009-2009 Toyota Camry, 2009-2009 Toyota Camry, 2009-2009 Toyota Corolla, 2009-2009 Toyota FJ Cruiser, 2008-2014 Lexus IS F, 2008-2008 Scion xB
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
TY1319484, 90919A2001, 9091902248, 90919A2006, 90919T2005, 9091902260, 90919T2008, 1788339, 
...View more
item #1000ZK7Y
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Denso 673-1308 Ignition Coil
DensoPart # 673-1308
Denso 673-1308 Ignition Coil
4.625 Reviews
$67.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2022-2023 Lexus IS500, 2018-2023 Lexus LC500, 2016-2023 Toyota Tacoma, 2016-2020 Lexus GS F, 2015-2023 Lexus RC F, 2012-2015 Scion xB, 2011-2012 Toyota Matrix, 2011-2011 Toyota Tundra, 2010-2010 Toyota 4Runner, 2009-2011 Toyota Camry, 2009-2010 Toyota Corolla, 2009-2010 Toyota Matrix, 2008-2014 Lexus IS F, 2008-2011 Scion xB, 2008-2008 Toyota Camry, 2008-2008 Toyota Camry, 2008-2008 Toyota Solara, 2007-2009 Toyota FJ Cruiser, 2007-2008 Toyota Camry, 2007-2007 Toyota Camry
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-1308, C-666, IC575, U5090, 90919-A2001, 90919-02248, 90919-A2006, 90919-02260, 
...View more
item #1002H7Q6
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1 pc Ignition Coil | 4-Blade Terminal | Aisin ESCT-00683
AisinPart # ESCT-00683
1 pc Ignition Coil | 4-Blade Terminal | Aisin ESCT-00683
4.6602 Reviews
$36.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2000 - 2000 Toyota Tacoma, 2000 - 2000 Toyota Tacoma, 1999 - 2001 Toyota Solara, 1999 - 2000 Toyota 4Runner, 1998 - 2000 Toyota RAV4, 1998 - 1999 Toyota Tacoma, 1998 - 1999 Toyota Tacoma, 1998 - 1998 Toyota T100, 1997 - 2001 Toyota Camry, 1997 - 1998 Toyota 4Runner
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
9008019007, 9008019008, 9091902217, 9091902218, 9091902220
ConditionNew
item #10186NQ1
Show less
Beck/Arnley 178-8164 Ignition Coil
Beck/ArnleyPart # 178-8164
Beck/Arnley 178-8164 Ignition Coil
4.540 Reviews
$43.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1997-1997 Toyota Celica, 1996-1996 Toyota 4Runner, 1995-1997 Toyota Tacoma, 1995-1996 Toyota Tacoma, 1995-1995 Toyota Paseo, 1994-1998 Toyota T100, 1994-1996 Toyota Celica, 1994-1995 Toyota Camry, 1993-1997 Geo Prizm, 1993-1997 Toyota Corolla, 1993-1995 Toyota MR2, 1992-1994 Toyota Paseo, 1992-1993 Toyota Camry, 1992-1993 Toyota Celica, 1989-1994 Toyota Tercel, 1989-1989 Isuzu I-Mark, 1989-1989 Toyota Corolla, 1988-1989 Isuzu I-Mark, 1988-1988 Toyota Corolla, 1988-1988 Toyota Corolla
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8164
item #1000X1LA
Show less
Denso 673-1309 Ignition Coil
DensoPart # 673-1309
Denso 673-1309 Ignition Coil
4.625 Reviews
$114.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2019-2019 Toyota Corolla, 2016-2018 Toyota RAV4, 2016-2016 Lexus GS450h, 2016-2016 Lexus IS300, 2016-2016 Lexus IS350, 2016-2016 Lexus RC300, 2016-2016 Lexus RC350, 2015-2021 Lexus NX300h, 2015-2016 Scion tC, 2015-2015 Lexus RC350, 2015-2015 Toyota RAV4, 2015-2015 Toyota RAV4, 2015-2015 Toyota RAV4, 2015-2015 Toyota Venza, 2014-2016 Toyota Sienna, 2014-2014 Toyota RAV4, 2014-2014 Toyota Venza, 2013-2022 Toyota Sequoia, 2013-2021 Lexus LX570, 2013-2021 Toyota Land Cruiser
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-1309, C-701, C-710, IC733, IC567, IC587, U5076, U5084, 
...View more
item #1002H81D
Show less
1 pc Ignition Coil | 2-Blade Terminal | Aisin ESCT-00685
AisinPart # ESCT-00685
1 pc Ignition Coil | 2-Blade Terminal | Aisin ESCT-00685
4.6602 Reviews
$36.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2000 - 2004 Toyota Tundra, 1996 - 2002 Toyota 4Runner, 1995 - 2004 Toyota Tacoma, 1995 - 1998 Toyota T100
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
88921337, 9091902212
ConditionNew
item #10186NE1
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Beck/Arnley 178-8166 Ignition Coil
Beck/ArnleyPart # 178-8166
Beck/Arnley 178-8166 Ignition Coil
4.540 Reviews
$50.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1996 Toyota Camry, 1995-1995 Toyota MR2, 1994-1995 Toyota Camry, 1994-1994 Toyota T100, 1993-1995 Toyota 4Runner, 1993-1995 Toyota Pickup, 1993-1993 Toyota T100, 1992-1997 Lexus SC400, 1992-1993 Toyota Celica, 1991-1992 Toyota MR2, 1990-1997 Lexus LS400, 1990-1991 Toyota Celica, 1989-1992 Toyota 4Runner, 1989-1992 Toyota Pickup
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8166
item #1000X2NK
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1 pc Ignition Coil | 2-Bolt Terminal | Aisin ESCAZ-00679
AisinPart # ESCAZ-00679
1 pc Ignition Coil | 2-Bolt Terminal | Aisin ESCAZ-00679
4.6602 Reviews
$37.99
Low stock: Only 3 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1996 - 1997 Geo Prizm, 1996 - 1997 Toyota Celica, 1996 - 1997 Toyota Corolla, 1996 - 1996 Toyota 4Runner, 1995 - 1997 Geo Prizm, 1995 - 1997 Toyota Corolla, 1995 - 1997 Toyota Tacoma, 1995 - 1997 Toyota Tacoma, 1994 - 1997 Toyota T100, 1994 - 1995 Toyota Camry, 1994 - 1995 Toyota Celica, 1992 - 1995 Toyota MR2, 1992 - 1995 Toyota Paseo, 1992 - 1993 Toyota Camry, 1992 - 1993 Toyota Celica, 1988 - 1994 Toyota Tercel, 1987 - 1987 Toyota Tercel
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
88921289, 9091902163, 94855502
ConditionNew
item #10186NSE
Show less
Denso 673-1303 Ignition Coil
DensoPart # 673-1303
Denso 673-1303 Ignition Coil
4.625 Reviews
$71.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2009 Toyota Sequoia, 2003-2009 Lexus GX470, 2003-2009 Toyota 4Runner, 2002-2010 Lexus SC430, 2001-2007 Lexus GS430, 2001-2007 Toyota Sequoia, 2001-2006 Lexus LS430, 2000-2009 Toyota Tundra, 1998-2007 Lexus LX470, 1998-2007 Toyota Land Cruiser
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-1303, C-629, IC336, U5065, 90919-02230, 90919-02249, 90919-02259, 90080-19027, 
...View more
item #1002HAU8
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Beck/Arnley 178-8165 Ignition Coil
Beck/ArnleyPart # 178-8165
Beck/Arnley 178-8165 Ignition Coil
4.540 Reviews
$75.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1991-1992 Toyota MR2, 1990-1990 Toyota Land Cruiser, 1989-1992 Toyota 4Runner, 1989-1992 Toyota Pickup, 1988-1991 Toyota Camry
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8165
item #1000X4PG
Show less
Beck/Arnley 178-8343 Ignition Coil
Beck/ArnleyPart # 178-8343
Beck/Arnley 178-8343 Ignition Coil
4.540 Reviews
$70.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2000-2000 Toyota Tacoma, 2000-2000 Toyota Tacoma, 1999-2001 Toyota Solara, 1998-2000 Toyota RAV4, 1998-1999 Toyota Tacoma, 1997-2001 Toyota Camry, 1997-2000 Toyota 4Runner, 1997-1999 Toyota Tacoma
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8343
item #1000X4ZN
Show less
Beck/Arnley 178-8274 Direct Ignition Coil
Beck/ArnleyPart # 178-8274
Beck/Arnley 178-8274 Direct Ignition Coil
4.540 Reviews
$98.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2001-2002 Toyota 4Runner, 2000-2004 Toyota Tundra, 1996-2000 Toyota 4Runner, 1995-2004 Toyota Tacoma, 1995-1998 Toyota T100
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8274
item #1000WX16
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Beck/Arnley 178-8526 Direct Ignition Coil
Beck/ArnleyPart # 178-8526
Beck/Arnley 178-8526 Direct Ignition Coil
4.540 Reviews
$62.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2005-2006 Toyota 4Runner, 2004-2007 Lexus GS430, 2004-2006 Lexus GX470, 2004-2006 Lexus LS430, 2004-2006 Lexus LX470, 2004-2006 Lexus SC430, 2004-2006 Toyota Land Cruiser, 2004-2004 Toyota Sequoia, 2004-2004 Toyota Tundra
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8526
item #1000WZ8W
Show less
Beck/Arnley 178-8313 Direct Ignition Coil
Beck/ArnleyPart # 178-8313
Beck/Arnley 178-8313 Direct Ignition Coil
4.540 Reviews
$103.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2009 Toyota Sequoia, 2007-2010 Lexus SC430, 2007-2009 Lexus GX470, 2007-2009 Toyota 4Runner, 2007-2007 Lexus LX470, 2007-2007 Toyota Land Cruiser, 2005-2009 Toyota Tundra, 2005-2007 Toyota Sequoia, 2004-2004 Toyota Tundra, 2003-2004 Toyota 4Runner, 2003-2003 Lexus GX470, 2002-2003 Lexus SC430, 2001-2003 Lexus GS430, 2001-2003 Lexus LS430, 2001-2003 Toyota Sequoia, 2000-2003 Toyota Tundra, 1998-2003 Lexus LX470, 1998-2003 Toyota Land Cruiser
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8313
item #1000WY2H
Show less
Beck/Arnley 178-8339 Direct Ignition Coil
Beck/ArnleyPart # 178-8339
Beck/Arnley 178-8339 Direct Ignition Coil
4.540 Reviews
$60.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2022-2024 Lexus IS500, 2018-2024 Lexus LC500, 2016-2023 Toyota Tacoma, 2016-2020 Lexus GS F, 2015-2024 Lexus RC F, 2011-2012 Toyota Matrix, 2011-2011 Toyota Camry, 2011-2011 Toyota Tundra, 2010-2010 Toyota 4Runner, 2010-2010 Toyota Camry, 2009-2010 Toyota Corolla, 2009-2010 Toyota Matrix, 2009-2009 Toyota Camry, 2009-2009 Toyota Camry, 2009-2009 Toyota Camry, 2008-2015 Scion xB, 2008-2014 Lexus IS F, 2008-2008 Toyota Solara, 2007-2009 Toyota FJ Cruiser, 2007-2008 Toyota Camry
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8339
item #1000WXYL
Show less
Beck/Arnley 178-8344 Direct Ignition Coil
Beck/ArnleyPart # 178-8344
Beck/Arnley 178-8344 Direct Ignition Coil
4.540 Reviews
$94.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2019-2019 Toyota Corolla, 2019-2019 Toyota Corolla, 2018-2018 Toyota RAV4, 2017-2017 Toyota Camry, 2017-2017 Toyota Camry, 2017-2017 Toyota Camry, 2017-2017 Toyota RAV4, 2016-2016 Lexus IS300, 2016-2016 Lexus RC300, 2016-2016 Toyota RAV4, 2015-2021 Lexus NX300h, 2015-2016 Lexus RC350, 2015-2015 Toyota RAV4, 2015-2015 Toyota RAV4, 2015-2015 Toyota RAV4, 2013-2022 Toyota Sequoia, 2013-2021 Lexus LX570, 2013-2021 Toyota Land Cruiser, 2013-2018 Lexus ES300h, 2013-2018 Toyota Avalon
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
178-8344
item #1000X0ZE
Show less
Ignition Coil - Delphi GN10175
DelphiPart # GN10175
Ignition Coil - Delphi GN10175
52 Reviews
$89.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1997-1997 Toyota RAV4, 1996-1996 Toyota Camry, 1994-1995 Toyota Camry, 1994-1994 Toyota T100, 1993-1995 Toyota 4Runner, 1993-1995 Toyota MR2, 1993-1995 Toyota Pickup, 1993-1993 Toyota T100, 1992-1997 Lexus SC400, 1992-1993 Toyota Celica, 1992-1992 Toyota 4Runner, 1992-1992 Toyota MR2, 1992-1992 Toyota MR2, 1992-1992 Toyota Pickup, 1991-1991 Toyota MR2, 1990-1997 Lexus LS400, 1990-1991 Toyota Celica
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
GN10175, 5C1194, 5C1296, C1039, C903, E546, E577, E580, 
...View more
item #1001VXPD
Note
No Module
Show less
Delphi GN10311 Ignition Coil
DelphiPart # GN10311
Delphi GN10311 Ignition Coil
52 Reviews
$77.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2009 Toyota Sequoia, 2003-2009 Lexus GX470, 2003-2009 Toyota 4Runner, 2002-2010 Lexus SC430, 2001-2007 Lexus GS430, 2001-2007 Toyota Sequoia, 2001-2006 Lexus LS430, 2000-2009 Toyota Tundra, 1998-2007 Lexus LX470, 1998-2007 Toyota Land Cruiser
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
GN10311, 5C1196, C1173, CLS1031, 921-2010, 673-1303, 5051, 90080-19027, 
...View more
item #1001VY51
Show less
Ignition Coil - Delphi GN10184
DelphiPart # GN10184
Ignition Coil - Delphi GN10184
52 Reviews
$87.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2001-2002 Toyota 4Runner, 2000-2004 Toyota Tundra, 1996-2000 Toyota 4Runner, 1995-2004 Toyota Tacoma, 1995-1998 Toyota T100
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
GN10184, 5C1308, C1041, E589, CLS1029, 921-2009, 673-1201, 5015, 
...View more
item #1001VSV2
Note
Coil without Module
Coil Comes with Boot
Show less
Ignition Coil - Delphi GN10286
DelphiPart # GN10286
Ignition Coil - Delphi GN10286
52 Reviews
$88.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1992-1992 Toyota MR2, 1991-1992 Toyota Land Cruiser, 1991-1991 Toyota MR2, 1990-1991 Lexus ES250, 1990-1991 Toyota 4Runner, 1989-1991 Toyota Pickup, 1989-1989 Toyota MR2, 1988-1991 Toyota Camry
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Toyota 4Runner
Quantity1
Item LocatedUnited States
Part interchange
GN10286, 5C1191, C-909, E532, E559, CLS1125, 920-1087, 90919-02185, 
...View more
item #1001VX9W
Show less
Page 4 of 5

Premium Automotive Ignition Coils | Restore Engine Power & Fuel Efficiency

Are you experiencing rough idling, engine misfires, or a sudden drop in fuel economy? It might be time for an ignition coil replacement. As a heart of your vehicle's ignition system, a reliable automotive ignition coil transforms your battery's low voltage into the thousands of volts required to create an electric spark in the spark plugs, keeping your engine running smoothly.

At A-Premium, we provide OE-matching car ignition coil solutions designed to eliminate misfires, restore lost horsepower, and ensure reliable cold starts in any weather condition.

Anatomy of an A-Premium engine ignition coil

Anatomy of an A-Premium Engine Ignition Coil

To understand what makes a high-performance engine ignition coil, let’s look inside its core engineering:

  1. Integrated Driving Circuit: Features a compact, smart-integrated electronic chip at the top of the coil to ensure precise ignition timing and robust thermal resistance.
  2. Superior Quality Components & Materials: Wrapped with high-grade copper wire and premium epoxy resin insulation to prevent voltage leaks and withstand extreme under-hood heat.
  3. Rigorously Tested & Inspected: 100% factory stress-tested against thermal shock and vibration to guarantee long-lasting durability.
  4. Diagonal Windings Technology: Eliminates heavy, sectioned bobbins through advanced space-saving diagonal winding, significantly reducing the overall size and weight while maximizing energy output.

Our Advantages: Built for Real-World Driving Scenarios

Our automotive ignition coil lineup is engineered to solve everyday driving pains:

  • The Daily Commute (Stop-and-Go Traffic): Misfires often happen when idling at red lights. Our coils deliver stable, continuous voltage output, eliminating rough idles and ensuring seamless acceleration.
  • Extreme Weather Performance: Cheap coils crack under freezing winter temperatures or intense summer engine heat. Our high-dielectric epoxy coatings prevent micro-cracks, ensuring your engine fires up instantly on the first crank.
  • Fuel & Emission Savings: A weak spark leads to unburnt fuel. Upgrading your worn car ignition coil ensures complete combustion, optimizing your MPG and helping you pass emissions tests effortlessly.

Smart Buyer’s Guide: How to Choose the Best Ignition Coil

Navigating the market for an engine ignition coil can be confusing. Here is what smart buyers look for to get the perfect match:

1. Matching by Vehicle Make & Fitment (The #1 Priority)

Ignition systems are highly sensitive. A generic coil will cause error codes. Most users search and filter by their vehicle’s specific Year, Make, and Model, such as Ford EcoBoost, Honda VTEC, or Toyota VVT-i systems. Always use our fitment selector at the top of the page to find the exact OEM specification for your car.

2. When to Buy an Ignition Coil & Spark Plug Kit? (The Smart Money Move)

Should you buy them together? 90% of mechanics recommend it.

  • The Reason: A worn, old spark plug has a wider gap, which forces the engine ignition coil to work twice as hard to bridge that gap. This extra workload overheats the coil and burns it out prematurely.
  • The Strategy: If your vehicle has crossed 80,000 miles and you are doing an ignition coil replacement, always buy a complete coil and spark plug kit. It saves you from tearing down the engine twice and protects your new investment.

Replacement Checklist: When to Replace vs. When to Keep

Not every engine hiccup requires a new coil. Use this quick checklist to decide your next move:

Time to Replace if:

  • You have a confirmed OBD-II trouble code between P0300 to P0308, indicating a specific cylinder misfire.
  • The plastic housing of the coil shows visible hairline cracks, melting, or burning.
  • Your vehicle has passed 100,000 miles, as ignition coils are wear items and generally degrade after this milestone.

Do NOT Replace Yet if:

  • Your car won't crank at all. This is usually a dead battery or starter motor issue, not the ignition coil.
  • You have a misfire code but haven't checked for oil leaks. Often, a leaking valve cover gasket floods the spark plug well with oil, causing a short circuit. Simply cleaning the oil and replacing the gasket might fix the issue without needing a new coil.

Frequently Asked Questions (FAQ)

Can I replace just one faulty ignition coil, or should I replace them all at once?

If your vehicle has low mileage, replacing just the single failed car ignition coil is perfectly fine. However, if your car has over 80,000 miles, all the coils have experienced the same amount of heat and stress. When one fails, the others are usually close behind. Replacing the whole set at once ensures consistent engine balance and saves on future labor costs.

What are the most common symptoms of a failing engine ignition coil?

The most prominent signs include a flashing Check Engine Light, sudden engine shaking, especially at idle or under load, poor fuel economy, backfiring, and a noticeable hesitation or jerking when you step on the gas pedal.

How long does a typical automotive ignition coil last?

High-quality OEM-grade ignition coils are built to last between 80,000 to 100,000 miles. However, exposure to excessive engine vibration, oil leaks from a failing valve cover gasket, or neglected, worn-out spark plugs can drastically shorten their lifespan.

Will changing my ignition coils improve my gas mileage?

Yes. If your current coils are weak or failing, they create incomplete combustion in the cylinders, meaning your engine is literally throwing away unburnt fuel through the exhaust. Performing an ignition coil replacement restores 100% combustion efficiency, bringing your fuel economy back to factory-fresh levels.

Is it safe to drive with a misfiring ignition coil?

No, you should avoid it. Driving with a failed ignition coil means unburnt raw fuel is entering your exhaust system. This fuel will quickly ignite inside your catalytic converter, overheating it and melting its internal structure. A catalytic converter replacement is significantly more expensive than a simple ignition coil swap.

Related Blogs

P0353 Code: Ignition Coil C Circuit Causes and Fixes

Diagnose P0353 Ignition Coil C Circuit faults with this guide. Learn causes, symptoms, and fixes for misfires. Includes coil swap tests, wiring checks, and cost estimates to resolve issues safely and avoid catalytic converter damage.

Sep 15, 2026

Hard Start in Hot Weather? Testing Your Fuel Pump and Ignition Coil for Heat Soak

Heat soak is a "final warning" for aging parts. This guide dives into why fuel pumps and ignition coils fail in high heat and how to professionally diagnose these faults to solve your car’s hot-weather starting issues.

Sep 04, 2026

P0301 Code: Cylinder 1 Misfire Diagnosis and Fix

Experiencing engine issues? The P0301 code signals a cylinder 1 misfire, impacting performance and fuel efficiency. Discover the causes, symptoms, and effective fixes to quickly get your engine back to optimal performance.

Aug 10, 2026

P0351: Ignition Coil A Primary/Secondary Circuit Malfunction

Decode the P0351 Ignition Coil A fault. Learn its meaning, symptoms, and causes like failed coils or bad wiring. Master the DIY diagnosis, including the coil swap test, to avoid costly PCM replacements and restore engine performance efficiently.

Aug 10, 2026

P0306 Code: Cylinder 6 Misfire Causes, Diagnosis, and Fix

Decode the P0306 Cylinder 6 Misfire code. This step-by-step guide helps you pinpoint the exact cause, avoid unnecessary part replacements, reduce repair costs, and prevent severe engine damage.

Aug 10, 2026