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Ford Ignition Coil

408 items

Shop precise fit replacement Ignition Coil to maintain and improve your vehicle's performance. Find the right parts for your make and model, backed by excellent customer service at A-Premium.

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Direct Ignition Coil - Denso 673-6205Direct Ignition Coil - Denso 673-6205
DensoPart # 673-6205
Direct Ignition Coil - Denso 673-6205
4.523 Reviews
$54.99
Low stock: Only 1 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2013-2014 Ford Fusion, 2013-2016 Ford Escape, 2014-2016 Ford Transit Connect, 2014-2019 Ford Fiesta
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
673-6205, U5275, 48891, BM5Z 12029-B, GN10644, UF674, E1174, DG 551
item #1002H7QS
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Direct Ignition Coil - Denso 673-6014
DensoPart # 673-6014
Direct Ignition Coil - Denso 673-6014
4.523 Reviews
$131.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1995 Ford Thunderbird, 1994-1994 Ford Mustang, 1995-1995 Ford Thunderbird, 1995-2000 Ford Contour, 1995-2000 Ford Windstar, 1996-1997 Ford Thunderbird, 1996-1999 Ford Taurus, 1996-2000 Ford Mustang, 1998-2000 Ford E-150 Econoline, 1998-2000 Ford E-150 Econoline Club Wagon, 1998-2000 Ford E-250 Econoline, 1998-2000 Ford F-150, 1998-2000 Ford Ranger, 1995-1996 Jaguar XJ12, 1998-2000 Mazda B3000, 2000-2001 Mazda MPV, 1989-1990 Mercury Cougar, 1995-1997 Mercury Cougar, 1995-2000 Mercury Mystique, 1996-1999 Mercury Sable
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6014, C-505, IC38, U2020, GN10180, 920-1014, 5C1123, C901, 
...View more
item #1002HADV
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Direct Ignition Coil - Denso 673-6011
DensoPart # 673-6011
Direct Ignition Coil - Denso 673-6011
4.523 Reviews
$90.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2012 Ford Fusion, 2007-2007 Ford Escape, 2009-2012 Ford Escape, 2006-2006 Lincoln Zephyr, 2010-2011 Mazda Tribute, 2006-2011 Mercury Milan, 2007-2007 Mercury Mariner, 2009-2011 Mercury Mariner
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6011, C-768, IC566, U5294, 6E5Z 12029-BA, GN10238, UF486, 921-2088, 
...View more
item #1002H9Z7
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Direct Ignition Coil - Denso 673-6004
DensoPart # 673-6004
Direct Ignition Coil - Denso 673-6004
4.523 Reviews
$51.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2005 Ford Thunderbird, 2000-2002 Jaguar S-Type, 2000-2005 Lincoln LS, 2006-2006 Lincoln LS
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
673-6004, C-619, IC518, U5038, XR827823, GN10227, 5C1179, 921-2006, 
...View more
item #1002HAT6
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Denso 673-6304 Ignition Coil
DensoPart # 673-6304
Denso 673-6304 Ignition Coil
4.523 Reviews
$56.99
Low stock: Only 2 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2011-2016 Ford F-150, 2011-2016 Ford Mustang
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6304, C-756, IC725, U5178, BR3Z 12029-A, GN10420, UF622, 921-2138, 
...View more
item #1002H869
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Denso 673-6013 Ignition Coil
DensoPart # 673-6013
Denso 673-6013 Ignition Coil
4.523 Reviews
$88.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2007-2011 Ford Edge, 2008-2009 Ford Taurus, 2008-2009 Ford Taurus X, 2009-2009 Ford Flex, 2010-2011 Ford Flex, 2010-2012 Ford Fusion, 2010-2015 Ford Flex, 2010-2015 Ford Flex, 2010-2017 Ford Taurus, 2010-2017 Ford Taurus, 2010-2017 Ford Taurus, 2011-2011 Ford Explorer, 2011-2012 Ford Flex, 2011-2014 Ford F-150, 2011-2017 Ford Mustang, 2012-2012 Ford Explorer, 2012-2014 Ford Edge, 2012-2015 Ford Flex, 2012-2016 Ford Edge, 2013-2013 Ford Explorer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6013, C-720, IC633, U5251, GN10237, 921-2137, 5C1652, C1595, 
...View more
item #1002HAS7
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Denso 673-6100 Ignition Coil
DensoPart # 673-6100
Denso 673-6100 Ignition Coil
4.523 Reviews
$104.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1997 Ford Aerostar, 1990-2011 Ford Ranger, 1991-1995 Ford Explorer, 1996-2010 Ford Explorer, 2001-2003 Ford Explorer Sport, 2001-2005 Ford Explorer Sport Trac, 2005-2010 Ford Mustang, 2008-2010 Ford Explorer Sport Trac, 1991-1994 Mazda Navajo, 1994-2009 Mazda B4000, 1995-1996 Mazda B3000, 1998-2000 Mazda B3000, 1998-2002 Mazda 626, 1998-2010 Mercury Mountaineer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorGrey
Part interchange
673-6100, C-507, IC35, U2029, F0TZ 12029-A, 178-8221, FD480, GN10178, 
...View more
item #1002HAYC
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Direct Ignition Coil - Denso 673-6016
DensoPart # 673-6016
Direct Ignition Coil - Denso 673-6016
4.523 Reviews
$54.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1996-1999 Ford Taurus
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
ColorBlack
Part interchange
673-6016, C-677, IC61, U5254, F6DZ 12029-EA, GN10300, UF162, 921-2036, 
...View more
item #1002H7HY
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Spectra Premium C-513 Ignition Coil
Spectra PremiumPart # C-513
Spectra Premium C-513 Ignition Coil
52 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2001-2003 Ford Escape, 2004-2004 Ford Taurus, 2004-2004 Ford Taurus, 2004-2004 Ford Taurus, 2004-2004 Ford Taurus, 2004-2004 Ford Taurus, 2005-2007 Ford Five Hundred, 2005-2007 Ford Freestyle, 2007-2008 Ford Escape, 2001-2006 Mazda Tribute, 2008-2008 Mazda Tribute, 2009-2009 Mazda Tribute, 2010-2011 Mazda Tribute, 2000-2000 Mercury Sable
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-513, CFD502, FD502T, FD502, 420002, 50053, AJ0918100, AJ0318100, 
...View more
item #1000Z5UD
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Spectra Premium C-624 Ignition Coil
Spectra PremiumPart # C-624
Spectra Premium C-624 Ignition Coil
52 Reviews
$27.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 2002-2002 Alfa Romeo 147, 1958-1958 American Motors Ambassador, 1958-1958 American Motors American, 1958-1958 American Motors Rambler, 1958-1958 American Motors Rebel, 1959-1960 American Motors American, 1959-1960 American Motors Rambler, 1959-1961 American Motors Rebel, 1959-1964 American Motors Ambassador, 1961-1962 American Motors Classic, 1963-1964 American Motors Classic, 1965-1966 American Motors Ambassador, 1965-1966 American Motors Classic, 1965-1967 American Motors Marlin, 1965-1968 American Motors American, 1966-1966 American Motors Ambassador, 1966-1966 American Motors Rogue, 1966-1967 American Motors Ambassador, 1966-1970 American Motors Rebel, 1967-1967 American Motors Ambassador
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-624, CUC12, UC12, UC12T, UC12X, 26189, U505, E552C, 
...View more
item #1000Z61S
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Spectra Premium C-500 Ignition Coil
Spectra PremiumPart # C-500
Spectra Premium C-500 Ignition Coil
52 Reviews
$25.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1997-1998 Ford Club Wagon, 1997-1998 Ford E-350 Econoline, 1997-1998 Ford E-350 Econoline, 1997-1999 Ford Econoline Super Duty, 1997-1999 Ford Econoline Super Duty, 1997-1999 Ford Expedition, 1997-1999 Ford F-250, 1997-2002 Ford E-150 Econoline, 1997-2002 Ford E-150 Econoline Club Wagon, 1997-2002 Ford E-250 Econoline, 1997-2002 Ford E-350 Econoline Club Wagon, 1997-2002 Ford E-350 Econoline Club Wagon, 1997-2003 Ford F-150, 1998-1998 Ford E-150 Econoline, 1998-1998 Ford F-450 Super Duty, 1998-2004 Ford Grand Marquis, 1998-2011 Ford Crown Victoria, 1999-1999 Ford Mustang, 1999-1999 Ford Mustang, 1999-1999 Ford Mustang
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-500, CFD503, FD503T, FD503, FD504, FD503TK8, 420001, 50006, 
...View more
item #1000Z62W
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Spectra Premium C-502 Ignition Coil
Spectra PremiumPart # C-502
Spectra Premium C-502 Ignition Coil
52 Reviews
$36.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1982-1982 Ford Escort, 1983-1983 Ford Escort, 1983-1983 Ford Mustang, 1983-1985 Ford Ranger, 1983-1988 Ford EXP, 1984-1984 Ford Bronco II, 1984-1984 Ford E-350 Econoline Club Wagon, 1984-1984 Ford F-150, 1984-1984 Ford F-150, 1984-1984 Ford F-150, 1984-1984 Ford Thunderbird, 1984-1985 Ford Escort, 1984-1986 Ford E-350 Econoline Club Wagon, 1984-1986 Ford LTD, 1984-1986 Ford LTD, 1984-1987 Ford Bronco, 1984-1987 Ford E-150 Econoline, 1984-1987 Ford E-150 Econoline Club Wagon, 1984-1987 Ford E-250 Econoline, 1984-1987 Ford E-250 Econoline Club Wagon
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-502, CFD478, FD478T, FD478, 5189, 9201011, ZZM418100A, ZZM118100, 
...View more
item #1000Z4HQ
Show less
Spectra Premium C-800 Ignition Coil
Spectra PremiumPart # C-800
Spectra Premium C-800 Ignition Coil
52 Reviews
$26.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2008-2008 Ford Expedition, 2008-2008 Ford Explorer, 2008-2008 Ford Explorer Sport Trac, 2008-2008 Ford F-150, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-350, 2008-2008 Ford F-350 Super Duty, 2008-2008 Ford F-350 Super Duty, 2008-2008 Ford F-450 Super Duty, 2008-2008 Ford F-53 Motorhome Chassis, 2008-2008 Ford Mustang, 2009-2009 Ford F-350, 2009-2009 Ford F-53 Motorhome Chassis, 2009-2009 Ford Lobo, 2009-2010 Ford Explorer, 2009-2010 Ford Explorer Sport Trac, 2009-2010 Ford F-150, 2009-2010 Ford F-150, 2009-2010 Ford F-250 Super Duty
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-800, CFD509, FD509, FD509T, 50107, 022150470A, E509P, E509, 
...View more
item #1000Z4Q8
Show less
Spectra Premium C-507 Ignition Coil
Spectra PremiumPart # C-507
Spectra Premium C-507 Ignition Coil
52 Reviews
$60.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1989-1992 Ford Taurus, 1990-1997 Ford Aerostar, 1990-2011 Ford Ranger, 1991-1995 Ford Explorer, 1993-1995 Ford Taurus, 1995-1995 Ford Mystique, 1995-1997 Ford Aerostar, 1995-1997 Ford Ranger, 1996-2000 Ford Mystique, 1996-2000 Ford Sable, 1996-2010 Ford Explorer, 1997-1997 Ford E-150 Econoline, 1997-1997 Ford E-150 Econoline Club Wagon, 1997-1997 Ford F-150, 1997-1998 Ford E-250 Econoline, 1998-2000 Ford Ranger, 2001-2005 Ford Explorer Sport Trac, 2005-2010 Ford Mustang, 2007-2010 Ford Explorer Sport Trac, 1991-1994 Mazda Navajo
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-507, CFD480, FD480T, FD490, FD480, 5188, KLG418100A, ZZL018100, 
...View more
item #1000Z5U8
Show less
Spectra Premium C-768 Ignition Coil
Spectra PremiumPart # C-768
Spectra Premium C-768 Ignition Coil
52 Reviews
$37.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2006-2012 Ford Fusion, 2009-2012 Ford Escape, 2006-2006 Lincoln Zephyr, 2008-2011 Mazda Tribute, 2006-2011 Mercury Milan, 2009-2011 Mercury Mariner
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-768, CUF486, UF486T, UF486, 50105, 9212088, E986, E986P, 
...View more
item #1000Z7KX
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Spectra Premium C-660 Ignition Coil
Spectra PremiumPart # C-660
Spectra Premium C-660 Ignition Coil
52 Reviews
$28.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1952-1953 Allstate A-230, 1952-1953 Allstate A-240, 1961-1963 BMW 2600, 1966-1966 BMW 2002, 1967-1967 BMW 1800ti, 1967-1967 BMW 2000, 1967-1967 BMW 2000c, 1967-1967 BMW 2000cs, 1967-1967 BMW 2000ti, 1967-1968 BMW 1800, 1967-1968 BMW 2002, 1967-1969 BMW 1600, 1968-1968 BMW 2002ti, 1952-1955 Borgward Hansa 2400, 1954-1955 Borgward Hansa 1500, 1954-1961 Borgward Isabella, 1950-1952 Buick Roadmaster, 1950-1952 Buick Special, 1950-1952 Buick Super, 1950-1951 Cadillac Series 61
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-660, CUC14, 521902, U1097, DG2, J912010, JA001424, 200577, 
...View more
item #1000Z55U
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Spectra Premium C652M8 Ignition Coil
Spectra PremiumPart # C652M8
Spectra Premium C652M8 Ignition Coil
52 Reviews
$182.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2007 Ford F-150, 2005-2007 Ford Expedition, 2005-2007 Ford F-250 Super Duty, 2005-2007 Ford F-350, 2005-2007 Ford F-350 Super Duty, 2005-2007 Ford Mustang, 2005-2009 Ford F-250, 2006-2007 Ford Explorer, 2007-2007 Ford Explorer Sport Trac, 2008-2008 Ford Expedition, 2008-2008 Ford Explorer, 2008-2008 Ford Explorer Sport Trac, 2008-2008 Ford F-150, 2008-2008 Ford F-250 Super Duty, 2008-2008 Ford F-350, 2008-2008 Ford F-350 Super Duty, 2008-2008 Ford Mustang, 2010-2010 Ford Lobo, 2005-2007 Lincoln Navigator, 2006-2008 Lincoln Mark LT
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C652M8, U51508, DG511, FD508TK8, FD508, FD508T, 26338, 3312467757248656, 
...View more
item #1000Z3KU
Show less
Spectra Premium C-505 Ignition Coil
Spectra PremiumPart # C-505
Spectra Premium C-505 Ignition Coil
52 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1989-1995 Ford Thunderbird, 1994-2000 Ford Mustang, 1995-2000 Ford Contour, 1995-2000 Ford Windstar, 1996-1997 Ford Thunderbird, 1996-1999 Ford Taurus, 1998-2000 Ford E-150 Econoline, 1998-2000 Ford E-150 Econoline Club Wagon, 1998-2000 Ford F-150, 1998-2000 Ford Ranger, 1999-2000 Ford E-250 Econoline, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 2000-2000 Ford Taurus, 1995-1996 Jaguar XJ12
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-505, CFD488, FD488, FD488T, 5187, ZZMA18100A, ZZMA18100, GY0118100, 
...View more
item #1000Z590
Show less
Spectra Premium C-649 Ignition Coil
Spectra PremiumPart # C-649
Spectra Premium C-649 Ignition Coil
52 Reviews
$51.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1990-1993 Ford Festiva, 1991-1996 Ford Escort, 1990-1993 Mazda B2200, 1990-1993 Mazda B2600, 1990-1994 Mazda Protege, 1990-1995 Mazda 323, 1992-1993 Mazda MX-3, 1991-1996 Mercury Tracer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-649, CFD485, CUF221, UF221, 50095, 9201075, 230345, B6S71810XA, 
...View more
item #1000Z6XH
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Spectra Premium C-610 Ignition Coil
Spectra PremiumPart # C-610
Spectra Premium C-610 Ignition Coil
52 Reviews
$28.99
Low stock: Only 1 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1977-1977 American Motors Gremlin, 1977-1977 American Motors Gremlin, 1977-1977 American Motors Hornet, 1977-1977 American Motors Hornet, 1977-1977 American Motors Matador, 1977-1977 American Motors Pacer, 1978-1978 American Motors Gremlin, 1978-1978 American Motors Gremlin, 1978-1978 American Motors Matador, 1978-1979 American Motors Concord, 1978-1979 American Motors Concord, 1978-1980 American Motors AMX, 1978-1980 American Motors Pacer, 1978-1982 American Motors Concord, 1979-1979 American Motors Spirit, 1979-1979 American Motors Spirit, 1979-1982 American Motors Spirit, 1980-1980 American Motors Eagle, 1981-1983 American Motors Eagle, 1983-1983 American Motors Concord
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Ford
Quantity1
Item LocatedUnited States
Part interchange
C-610, CFD476, CUF476, U1095, F502Z, DG314, J3230427, 33004522, 
...View more
item #1000Z6QT
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Page 15 of 21

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

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.

Aug 17, 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

P0302 Code: How to Diagnose and Fix a Cylinder 2 Misfire

The P0302 diagnostic trouble code indicates a misfire condition in cylinder 2 of the engine. Specifically, the P0302 code is triggered when the engine control module (ECM) detects that cylinder 2 is not firing properly or is experiencing a misfire.

Jul 30, 2026