How to check and remove the Ignition Coil on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?

To check the High Energy Ignition System (HEI), begin by disconnecting the battery's negative terminal. Test the coil for opens and grounds. On the high scale, connect the ohmmeter leads; it should show a very high or infinite resistance value. On the low scale, check the coil's primary resistance, which should indicate a very low or zero resistance value. Also, check the coil's secondary resistance on the high scale; it should not show an infinite resistance. If any values are off, replace the coil. For removal, unplug the coil's high-tension wire and electrical leads, and remove the mounting nuts to take out the coil. The installation process is the reverse of removal.

How to check and replace the pick-up coil on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?

To check the ignition coil, start by connecting one lead of an ohmmeter to the terminal of the ignition coil lead and the other lead to the ground. Flex the leads by hand to check for intermittent opens, and the ohmmeter should always indicate infinite resistance. If it doesn't, the ignition coil is defective and needs to be replaced. Next, connect the ohmmeter leads to both terminals of the ignition coil lead and flex the leads by hand again. The ohmmeter should read a steady value between 500 and 1,500 ohms as the leads are flexed. If it doesn't, the ignition coil is defective and should be replaced. To remove the ignition coil, start by detaching the cable from the negative terminal of the battery. Then, remove the distributor cap and rotor, and if necessary, remove the distributor itself. Remove the spring clip from the distributor shaft and mark the distributor tang drive and shaft for reassembly. Set the distributor in a vise with a shop rag to protect the shaft, and use a hammer and punch to remove the roll pin from the distributor shaft and gear. Lift the ignition coil assembly straight up and remove it from the distributor, noting the order in which the pieces were removed. Reassembly is the reverse of disassembly.

Genuine Chevrolet Blazer Ignition Coil

Ignition Coil Resistor

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8 Ignition Coils found

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Chevrolet Blazer Coil Assembly, Ign
Part Number: 25202791
$56.37 MSRP: $118.42
You Save: $62.05 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ignition Coil
- Replaces: 12654078, 12687140, 12652405
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | L 4 DOOR SUV, LT 4 DOOR SUV | 4 Cyl 2.5L
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Chevrolet Blazer Distributor Ignition Pickup
Part Number: 10495089
$26.43 MSRP: $49.86
You Save: $23.43 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Coil,Distributor Pick Up ; Coil, Ignition; Coil, Ignition Coil, Pick-Up Coil
- Replaces: 01987964, 1987964
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1995 Chevrolet Blazer | 1/2 TON, 2 DOOR, 4 DOOR | 6 Cyl 2.8L, 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet Blazer COIL ASM,IGN
Part Number: 19418996
$73.64 MSRP: $154.70
You Save: $81.06 (53%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Ignition Coil
- Replaces: 10489421, 19207138
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L
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Chevrolet Blazer COIL KIT,IGN
Part Number: 19418995
$38.60 MSRP: $109.38
You Save: $70.78 (65%)
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Product Specifications
- Other Name: Coil, Ignition Coil
- Replaces: 01115468, 12498334, 01115315, 1115315, 1115468
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Chevrolet Blazer | 1/2 TON | 6 Cyl 4.3L, 8 Cyl 5.7L
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Chevrolet Blazer Coil Assembly, Ign
Part Number: 12707304
$35.10 MSRP: $66.22
You Save: $31.12 (47%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Ignition Coil
- Replaces: 12666339
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 6 Cyl 3.6L
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Chevrolet Blazer COIL ASM-IGN
Part Number: 55515866
$37.60 MSRP: $59.16
You Save: $21.56 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Ignition Coil
- Replaces: 55511558, 55508084
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | HIGH COUNTRY/LTZ 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV | 4 Cyl 2.0L
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Chevrolet Blazer Ignition Coil Kit
Part Number: 12498335
$95.37 MSRP: $171.06
You Save: $75.69 (45%)
ADD TO CART
Product Specifications
- Other Name: Coil Kit,Ignition ; Coil, Ignition Coil; Coil, Ignition Coil
- Replaces: 01985473, 1985473
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1989 Chevrolet Blazer | 1/2 TON | 6 Cyl 2.8L, 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel
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Chevrolet Blazer Ignition Coil
Part Number: 10477944
Product Specifications
- Other Name: Coil,Ignition
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | 2 DOOR, 4 DOOR | 6 Cyl 4.3L

Chevrolet Blazer Ignition Coil

This Chevrolet Blazer Ignition Coil is a vital part of the car that performs the primary function of offering the necessary ignition to the vehicle's engine. Being the pathway between the primary and secondary circuits the function of the ignition coil is to transform the low voltage received from the battery with the high voltage needed to ignite the air/fuel mixture in the cylinders. The ignition coil depends on the type it has usually two coils of insulated copper wire; the primary and the secondary coil; these coils are joined by an iron core in a housing. Depending on the type of the ignition system, the coil may be screwed and connected to the triggering device on its housing or it may be directly screwed to each spark plug as in COP systems. When the ignition coil fails, there can be either a no start condition or rough idle, poor performance, and fuel economy, along with the CHECK ENGINE light. Thus, proper care and inspection of the ignition coil helps in enhancing the functionality of the automobile engine and in addition, it helps in avoiding future problems.

Each OEM Chevrolet Blazer Ignition Coil we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Blazer Ignition Coil Parts Questions & Experts Answers

Ignition Coil
10477944
Q: How to check and remove the Ignition Coil on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?
A: To check the High Energy Ignition System (HEI), begin by disconnecting the battery's negative terminal. Test the coil for opens and grounds. On the high scale, connect the ohmmeter leads; it should show a very high or infinite resistance value. On the low scale, check the coil's primary resistance, which should indicate a very low or zero resistance value. Also, check the coil's secondary resistance on the high scale; it should not show an infinite resistance. If any values are off, replace the coil. For removal, unplug the coil's high-tension wire and electrical leads, and remove the mounting nuts to take out the coil. The installation process is the reverse of removal.
Distributor Ignition Pickup
10495089
Q: How to check and replace the pick-up coil on Chevrolet Blazer,S10,GMC Jimmy and Sonoma?
A: To check the ignition coil, start by connecting one lead of an ohmmeter to the terminal of the ignition coil lead and the other lead to the ground. Flex the leads by hand to check for intermittent opens, and the ohmmeter should always indicate infinite resistance. If it doesn't, the ignition coil is defective and needs to be replaced. Next, connect the ohmmeter leads to both terminals of the ignition coil lead and flex the leads by hand again. The ohmmeter should read a steady value between 500 and 1,500 ohms as the leads are flexed. If it doesn't, the ignition coil is defective and should be replaced. To remove the ignition coil, start by detaching the cable from the negative terminal of the battery. Then, remove the Distributor cap and rotor, and if necessary, remove the distributor itself. Remove the spring clip from the distributor shaft and mark the distributor tang drive and shaft for reassembly. Set the distributor in a vise with a shop rag to protect the shaft, and use a hammer and punch to remove the roll pin from the distributor shaft and gear. Lift the ignition coil assembly straight up and remove it from the distributor, noting the order in which the pieces were removed. Reassembly is the reverse of disassembly.