Chevrolet Blazer Distributor Cap Replacement Cost

Know what price you should pay to get your vehicle fixed.

The average cost for a Chevrolet Blazer distributor cap replacement is between $102 and $137. Labor costs are estimated between $61 and $78 while parts are priced between $41 and $59. Estimate does not include taxes and fees.
Note about price: The cost of this service or repair can vary by location, your vehicle's make and model, and even your engine type. Related repairs may also be needed. Talk with a RepairPal Certified shop to learn which repairs might be right for you.

How does the ignition cap and rotor work?

The distributor rotor receives the high voltage electricity from the ignition coil, and sends through the distributor through an electrode on the tip of the rotor. As the rotor spins, electrical power is transferred from the rotor to individual electrodes inside the distributor cap. This action is timed for the moment the cylinder needs the spark plug to fire, and the sequence creates a combustion event inside the engine.

What are the symptoms related to a bad ignition cap and rotor?

A failing ignition cap on rotor will create misfires in the engine, and lead to hesitation, extreme power loss, engine stalling, poor fuel mileage, and illumination of the check engine light. The on-board diagnostics (OBD) trouble codes stored in the vehicle's computer will reflect engine misfires, catalyst inefficiency, and O2 sensor related errors. Under the hood there may be audible arching, that sounds like a rubber band snapping, coming from the ignition coil, distributor, or spark plug ends of any of the spark plug wires. Lastly, the ignition distributor cap and rotor may look burned, wet, corroded, or covered in a powder residue, and the spark plug wires may be cracked or degraded.

Can I drive with a ignition cap and rotor problem?

Ignition system components cause many problems when they fail, normally making the vehicle unpleasant or impossible to drive. Also, the amount of unburned fuel going into the catalyst could cause the catalyst to fail, requiring replacement. With severe ignition problems, the vehicle should be towed to a repair facility.

How often do ignition cap and rotors need to be replaced?

The ignition distributor cap and rotor are both maintenance items, and the replacement schedule is listed in the owner's manual. If the distributor cap and rotor wear out before the specified mileage, they must be replaced early. Some vehicles have issues with distributor leaks, spreading oil onto the distributor rotor and distributor cap, causing misfires. When this occurs, the cap and rotor should be replaced.

Distributor Cap Replacement Cost Estimates

The average cost for a Distributor Cap Replacement is between $102 and $137 but can vary from car to car.