How to check and replace an ignition coil on Chevrolet Nova?

To check pick up coil first you need to remove the distributor cap, then you have to remove the rotor and you have to disconnect the pick-up coil leads from the module. Short an ohmmeter between the pick-up connector or wire and ground by touching each terminal, one at a time, and take note of the reading; an ohmmeter reading for a good pick-up coil should be infinity; if it is anything less than the pick-up coil is bad. Fourth, switch the ohmmeter towards both terminals on the pick-up coil connector, vacuum to the vacuum advance unit if it exists, and therefore the ohmmeter should read steady a minimum of 500 accompanied with a maximum of 1500 ohms while bending the wires; a failure here also implies a faulty pick-up coil. If the pick-up coil does not pass either test it should be replaced. This is eliminated, and instead, remove the distributor and mark the shaft and gear for gear assembly again. Place the distributor shaft housing in a bench vise; push out the roll pin to removed the gear and tanged washer-, check if there are burr in the shaft before pulling up the shaft. Three of the screws need to be unscrewed to remove the magnetic shield, as well as it is necessary to insert a flat-head screw-driver under the c-clip and turn it and pull out to remove the pick-up coil assembly. Put in the new pick-up coil assembly and make sure that the C-clip is in place, replace the shaft, make sure is clean and greased. Next piece is the tanged washer, fit it in such a way that the tangs are facing up, then the gear and then the roll pin. Rotate the shaft so that the teeth of the distributor shaft do not make any contact with the pick-up coil pole piece; if they make contact then adjust the pole piece and tighten it. Finally, reinstall the distributor.

How to replace an ignition coil in a distributor on Chevrolet Astro?

Detach the cable from the negative terminal of the battery. Remove the distributor cap and rotor. Remove the distributor from the engine. Detach the pick-up coil leads from the module. Connect one lead of an ohmmeter to the terminal of the pick-up coil lead and the other to ground as shown. Flex the leads by hand to check for intermittent opens. The ohmmeter should indicate infinite resistance at all times. If it doesn't, the pick-up coil is defective and must be replaced. Connect the ohmmeter leads to both terminals of the pick-up coil lead. Flex the leads by hand to check for intermittent opens. The ohmmeter should read one steady value between 500 and 1500 ohms as the leads are flexed by hand. If it doesn't, the pick-up coil is defective and must be replaced. Remove the spring from the distributor shaft. Mark the distributor tang drive and shaft so that they can be reassembled in the same position. If the distributor is equipped with a Hall Effect switch attached to the top of the pick-up coil, remove the two retaining screws. Carefully mount the distributor in a soft-jawed vise and, using a hammer and punch, remove the roll pin from the distributor shaft and gear. Remove the distributor shaft. Remove the driven gear and spacer washers from the end of the shaft, making sure to note the order in which you remove any spacers. Remove the shaft from the distributor. To remove the pick-up coil, remove the thin "C" washer (on four-cylinder models) or the retaining clip. Lift the pick-up coil assembly straight up and remove it from the distributor. Note the order in which you remove the pieces. Reassembly is the reverse of disassembly. Installation is the reverse of removal.

OEM Chevrolet Ignition Coil

Ignition Coil Resistor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

60 Ignition Coils found

View related parts
Chevrolet Ignition Coil, Green Line Part Number: 12638824
$43.33 MSRP: $76.08
You Save: $32.75 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Direct Ignition Coil; Coil; Coil, Ignition Coil
- Replaced by: 25206788
- Replaces: 12629646, 12578224
Fits the following Chevrolet Models:
- Captiva Sport | 2012-2015 | LS, LT, LTZ | 4 Cyl 2.4 L FLEX
- Cobalt | 2006-2010 | Base, LS, LT, LTZ, Sport, SS | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L GAS
- Equinox | 2010-2017 | L, LS, LT, LTZ, Premier | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
- HHR | 2006-2011 | LS, LS Panel, LT, LT Panel, SS, SS Panel | 4 Cyl 2.0 L GAS, 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
- Impala | 2014 | Eco | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Malibu | 2007-2014 | Classic LS, Eco, Hybrid, LS, LT, LTZ | 4 Cyl 2.2 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
View More
View related parts
Chevrolet Ignition Coil Part Number: 10495089
$27.81 MSRP: $52.22
You Save: $24.41 (47%)
ADD TO CART
Product Specifications
- Other Name: Coil, Distributor Pick Up; Pick-Up Coil; Coil; Coil, Distributor Shaft; Coil, Ignition
- Replaces: 01987964, 1987964
Fits the following Chevrolet Models:
- Astro | 1985-1995 | Base, CL, CS, LT | 4 Cyl 2.5 L GAS, 6 Cyl 4.3 L GAS
- Blazer | 1992-1995 | Base, Cheyenne, LT, Silverado, Silverado Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C1500 | 1991-1995 | 454 SS, Base, Cheyenne, Scottsdale, Silverado, WT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C1500 Suburban | 1992-1995 | Base, LS, LT, Silverado | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1991-1995 | Base, Cheyenne, Scottsdale, Silverado, WT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1995 | Base, LS, LT, Silverado | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1991-1995 | Base, Cheyenne, Scottsdale, Silverado | 8 Cyl 5.7 L GAS, 8 Cyl 7.4 L GAS
- Camaro | 1986 | Berlinetta, Sport | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS
- Caprice | 1991-1993 | Base, Classic, Classic LS, Classic LTZ | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G10 | 1992-1995 | Beauville, Chevy Van, Sportvan | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 12632479
$64.62 MSRP: $115.40
You Save: $50.78 (44%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Direct Ignition Coil; Coil On Plug Coil; Coil, Ignition Coil
- Replaces: 12590990, 12610626, 12618542
Fits the following Chevrolet Models:
- Camaro | 2010-2015 | LS, LT | 6 Cyl 3.6 L GAS
- Caprice | 2012-2017 | PPV | 6 Cyl 3.6 L FLEX
- Captiva Sport | 2012 | LT, LTZ | 6 Cyl 3.0 L FLEX
- Colorado | 2015-2016 | LT, WT, Z71 | 6 Cyl 3.6 L GAS
- Equinox | 2008-2017 | LT, LTZ, Premier, Sport | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Impala | 2012-2020 | LS, LT, LTZ, Police, Premier | 6 Cyl 3.6 L BI-FUEL, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Impala Limited | 2014-2016 | LS, LT, LTZ, Police | 6 Cyl 3.6 L FLEX
- Malibu | 2008-2012 | LT, LTZ | 6 Cyl 3.6 L GAS
- Traverse | 2009-2023 | High Country, L, LS, LT, LTZ, Premier, RS | 6 Cyl 3.6 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 12611424
$79.39 MSRP: $163.16
You Save: $83.77 (52%)
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Direct Ignition Coil; Coil; Coil, Ignition Coil
- Replaced by: 12739916
- Replaces: 12570616
Fits the following Chevrolet Models:
- Avalanche | 2007-2013 | Black Diamond LS, Black Diamond LT, Black Diamond LTZ, LS, LT, LTZ | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Camaro | 2010-2015 | LS, LT, SS, Z/28, ZL1 | 6 Cyl 3.6 L GAS, 8 Cyl 6.2 L GAS, 8 Cyl 7.0 L GAS
- Caprice | 2011-2017 | PPV | 8 Cyl 6.0 L FLEX
- Colorado | 2010-2012 | LT | 8 Cyl 5.3 L GAS
- Corvette | 2005-2013 | 427, 427 Limited Edition Z06, Base, Grand Sport, Z06, Z06 Carbon, ZR1 | 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS, 8 Cyl 7.0 L GAS
- Express 1500 | 2008-2014 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Express 2500 | 2008-2020 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Express 3500 | 2008-2020 | Base, LS, LT | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
- Impala | 2006-2009 | SS | 8 Cyl 5.3 L GAS
- Monte Carlo | 2006-2007 | SS | 8 Cyl 5.3 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 12629472
$44.47 MSRP: $91.40
You Save: $46.93 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Ignition Control Module; Direct Ignition Coil; Ignition Module; Coil, Ignition Coil
- Replaced by: 19421261
Fits the following Chevrolet Models:
- Colorado | 2007-2012 | LS, LT, WT | 4 Cyl 2.9 L GAS, 5 Cyl 3.7 L GAS
- Trailblazer | 2006-2009 | Base, LS, LT | 6 Cyl 4.2 L GAS
- Trailblazer EXT | 2006 | LS, LT | 6 Cyl 4.2 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 25198623
$126.49 MSRP: $259.94
You Save: $133.45 (52%)
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaces: 55579072, 25195107
Fits the following Chevrolet Models:
- Cruze | 2011-2016 | Eco, L, LS, LT, LTZ, Premier | 4 Cyl 1.4 L GAS
- Cruze Limited | 2016 | Eco, LT, LTZ | 4 Cyl 1.4 L GAS
- Sonic | 2012-2020 | LS, LT, LTZ, Premier, RS | 4 Cyl 1.4 L GAS
- Trax | 2015-2021 | LS, LT, LTZ, Premier | 4 Cyl 1.4 L GAS
- Volt | 2011-2015 | Base | 4 Cyl 1.4 L PLUG-IN HYBRID EV-GAS (PHEV)
View More
View related parts
Chevrolet Ignition Coil Part Number: 10497133
$50.43 MSRP: $138.60
You Save: $88.17 (64%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly, Ignition
- Replaced by: 19435464
Fits the following Chevrolet Models:
- Corvette | 1984-1985 | Base | 8 Cyl 5.7 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 19432144
$104.03 MSRP: $185.76
You Save: $81.73 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly, Ignition; Ignition Module; Coil, Ignition Coil
- Replaces: 12587153, 12595088, 12568185
Fits the following Chevrolet Models:
- Equinox | 2005-2009 | LS, LT, LTZ | 6 Cyl 3.4 L GAS
- Express 1500 | 2008-2014 | Base | 6 Cyl 4.3 L GAS
- Impala | 2008-2011 | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX
- Malibu | 2004-2010 | Classic LS, Classic LT, LS, LT, LTZ, Maxx, Maxx LS, Maxx LT, Maxx LTZ, Maxx SS, SS | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
- Silverado 1500 | 2007-2013 | LS, WT | 6 Cyl 4.3 L GAS
- Uplander | 2005-2008 | Base, LS, LT | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 10467067
$52.54 MSRP: $98.66
You Save: $46.12 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Coil, Ignition Coil
Fits the following Chevrolet Models:
- Corvette | 1990-1995 | ZR-1 | 8 Cyl 5.7 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 12498335
$100.35 MSRP: $179.20
You Save: $78.85 (44%)
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition Coil; Coil
- Replaces: 01985473, 1985473
Fits the following Chevrolet Models:
- Astro | 1985 | Base, CL, CS | 6 Cyl 4.3 L GAS
- Blazer | 1987-1989 | Custom Deluxe, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C10 | 1984-1986 | Custom, Scottsdale, Silverado | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C10 Suburban | 1984-1986 | Custom, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C20 | 1984-1986 | Custom, Scottsdale, Silverado | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C20 Suburban | 1984-1986 | Custom, Scottsdale, Silverado | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C30 | 1984-1986 | Custom, Scottsdale, Silverado | 6 Cyl 4.8 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- Camaro | 1984-1987 | Berlinetta, Iroc-Z, LT, Sport, Z28 | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Caprice | 1984-1988 | Base, Classic, Classic Brougham, Classic LS Brougham | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS
- Celebrity | 1984 | Base | 6 Cyl 2.8 L GAS, 6 Cyl 4.3 L DIESEL
View More
View related parts
Chevrolet Ignition Coil Part Number: 12728713
$44.54 MSRP: $83.64
You Save: $39.10 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
Fits the following Chevrolet Models:
- Corvette | 2023-2024 | Z06 | 8 Cyl 5.5 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 55511559
$34.38 MSRP: $70.66
You Save: $36.28 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaces: 55595516, 55493540
Fits the following Chevrolet Models:
- Malibu | 2016-2019 | Hybrid | 4 Cyl 1.8 L FULL HYBRID EV-GAS (FHEV)
View related parts
Chevrolet Ignition Coil Part Number: 55595166
$51.12 MSRP: $92.51
You Save: $41.39 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
Fits the following Chevrolet Models:
- Trailblazer | 2021-2024 | L, LS, LT | 3 Cyl 1.2 L GAS
- Trax | 2024 | ACTIV, LS, LT, RS | 3 Cyl 1.2 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 12705399
$42.45 MSRP: $79.72
You Save: $37.27 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Coil, Ignition Coil
- Replaced by: 12710878
Fits the following Chevrolet Models:
- Trailblazer | 2021-2024 | ACTIV, LS, LT, RS | 3 Cyl 1.3 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 19316340
$99.82 MSRP: $187.46
You Save: $87.64 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Coil, Ignition Coil
Fits the following Chevrolet Models:
- City Express | 2015-2018 | LS, LT | 4 Cyl 2.0 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 12579177
$160.37 MSRP: $301.16
You Save: $140.79 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition; Direct Ignition Coil
Fits the following Chevrolet Models:
- Impala | 2006-2007 | LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
- Malibu | 2006-2007 | LS, LT, LTZ, Maxx LS, Maxx LT, Maxx LTZ, Maxx SS, SS | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
- Monte Carlo | 2006-2007 | LS, LT, LTZ | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 25190788
$120.24 MSRP: $217.62
You Save: $97.38 (45%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly-Ignition
- Replaced by: 28289935
Fits the following Chevrolet Models:
- Spark | 2013-2015 | LS, LT | 4 Cyl 1.2 L GAS
- Spark EV | 2014-2015 | LT | BATTERY EV (EV/BEV)
View related parts
Chevrolet Ignition Coil Part Number: 10472748
$54.32 MSRP: $101.99
You Save: $47.67 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition
- Replaced by: 19166375
Fits the following Chevrolet Models:
- Beretta | 1991 | GTZ | 4 Cyl 2.3 L GAS
View related parts
Chevrolet Ignition Coil Part Number: 19166375
$54.32 MSRP: $101.99
You Save: $47.67 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Coil, Ignition; Coil; Coil, Ignition Coil
- Replaces: 10474481, 10457062, 10457109, 10472748
Fits the following Chevrolet Models:
- Beretta | 1990-1994 | GTZ, Indianapolis 500 Pace Car, Z26 | 4 Cyl 2.3 L GAS
- Cavalier | 1995-2002 | Base, LS, LS Sport, Z24 | 4 Cyl 2.2 L BI-FUEL, 4 Cyl 2.2 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.4 L GAS
- Malibu | 1997-1999 | Base | 4 Cyl 2.4 L GAS
View More
View related parts
Chevrolet Ignition Coil Part Number: 19352925
$62.29 MSRP: $111.24
You Save: $48.95 (44%)
Product Specifications
- Other Name: Coil, Ignition Coil; Ignition Coil Set; Coil
- Replaces: 10477602
Fits the following Chevrolet Models:
- Impala | 2004-2005 | Base, LS, SS | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
- Monte Carlo | 2004-2005 | LS, LT, SS | 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS

| Page 1 of 3 |Next >

1-20 of 60 Results

Chevrolet Ignition Coil

Choose OEM Ignition Coil, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Chevrolet's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Chevrolet Ignition Coil. You can shop at highly competitive prices and protect your budget. All our genuine Chevrolet parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Chevrolet Ignition Coil shoots consistent high voltage sparks in which all engines get awakened without a second thought. With more than 100 years of showing that daily commuting can be simple yet macho with a mix of powerful engines and non-wallet-punishing cabins, Chevrolet has earned its status as the self-proclaimed everyday car. The badge appears on small hatchbacks, muscular pickups, and spacious SUVs and the drivers can change roles without changing brands. Chevy infuses its powertrains with constant updates, shedding pounds and increasing torque to ensure that freeway merge-ups remain theatric. Lane keeping assistance, adaptive cruise, and the so-called Super Cruise system will be sliding into dashboards at an over-the-air update rather than the hype of a showroom. Chevy also maintains touch screens that are user-friendly, knobs no farther than fingers, and cargo areas no longer than square, thus weekend loads are packed in a flash. They might be plying the timber, commuting with teenagers, or driving toward a desert horizon, but the same VIN tag reminds them that they belong to a large, hopelessly practical group. The Chevrolet engineering adheres to that code. Between the battery and the spark plugs on any Chevy is an Ignition Coil which converts a weak trickle of twelve volts into a powerful forty thousand volt shock by forcing current through a primary winding of copper wire, collapsing the magnetic field about some iron core and then beating the energy into a second winding which delivers each plug a flash or redline pull. The engine can choke at rest, burn a lot of fuel, and flick a warning light when an Ignition Coil malfunctions and it is the wise decision to change it early.

Chevrolet Ignition Coil Parts and Q&A

Ignition Coil
94840127
Q: How to check and replace an ignition coil on Chevrolet Nova?
A:
To check pick up coil first you need to remove the distributor cap, then you have to remove the rotor and you have to disconnect the pick-up coil leads from the module. Short an ohmmeter between the pick-up connector or wire and ground by touching each terminal, one at a time, and take note of the reading; an ohmmeter reading for a good pick-up coil should be infinity; if it is anything less than the pick-up coil is bad. Fourth, switch the ohmmeter towards both terminals on the pick-up coil connector, vacuum to the vacuum advance unit if it exists, and therefore the ohmmeter should read steady a minimum of 500 accompanied with a maximum of 1500 ohms while bending the wires; a failure here also implies a faulty pick-up coil. If the pick-up coil does not pass either test it should be replaced. This is eliminated, and instead, remove the distributor and mark the shaft and gear for gear assembly again. Place the distributor shaft housing in a bench vise; push out the roll pin to removed the gear and tanged washer-, check if there are burr in the shaft before pulling up the shaft. Three of the screws need to be unscrewed to remove the magnetic shield, as well as it is necessary to insert a flat-head screw-driver under the c-clip and turn it and pull out to remove the pick-up coil assembly. Put in the new pick-up coil assembly and make sure that the C-clip is in place, replace the shaft, make sure is clean and greased. Next piece is the tanged washer, fit it in such a way that the tangs are facing up, then the gear and then the roll pin. Rotate the shaft so that the teeth of the distributor shaft do not make any contact with the pick-up coil pole piece; if they make contact then adjust the pole piece and tighten it. Finally, reinstall the distributor.
Ignition Coil
10495089
Q: How to replace an ignition coil in a distributor on Chevrolet Astro?
A:
Detach the cable from the negative terminal of the battery. Remove the distributor cap and rotor. Remove the distributor from the engine. Detach the pick-up coil leads from the module. Connect one lead of an ohmmeter to the terminal of the pick-up coil lead and the other to ground as shown. Flex the leads by hand to check for intermittent opens. The ohmmeter should indicate infinite resistance at all times. If it doesn't, the pick-up coil is defective and must be replaced. Connect the ohmmeter leads to both terminals of the pick-up coil lead. Flex the leads by hand to check for intermittent opens. The ohmmeter should read one steady value between 500 and 1500 ohms as the leads are flexed by hand. If it doesn't, the pick-up coil is defective and must be replaced. Remove the spring from the distributor shaft. Mark the distributor tang drive and shaft so that they can be reassembled in the same position. If the distributor is equipped with a Hall Effect switch attached to the top of the pick-up coil, remove the two retaining screws. Carefully mount the distributor in a soft-jawed vise and, using a hammer and punch, remove the roll pin from the distributor shaft and gear. Remove the distributor shaft. Remove the driven gear and spacer washers from the end of the shaft, making sure to note the order in which you remove any spacers. Remove the shaft from the distributor. To remove the pick-up coil, remove the thin "C" washer (on four-cylinder models) or the retaining clip. Lift the pick-up coil assembly straight up and remove it from the distributor. Note the order in which you remove the pieces. Reassembly is the reverse of disassembly. Installation is the reverse of removal.