Mercury Montego Automatic Shutdown Relay Replacement at your home or office.

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Automatic Shutdown Relay Replacement Service

How much does a Automatic Shutdown Relay Replacement cost?

On average, the cost for a Mercury Montego Automatic Shutdown Relay Replacement is $108 with $13 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1975 Mercury MontegoV8-5.8LService typeAutomatic Shutdown Relay ReplacementEstimate$141.11Shop/Dealer Price$157.64 - $184.73
1969 Mercury MontegoV8-5.8LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$137.66 - $164.76
1969 Mercury MontegoV8-5.0LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$137.66 - $164.76
1974 Mercury MontegoV8-7.5LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$137.64 - $164.72
2005 Mercury MontegoV6-3.0LService typeAutomatic Shutdown Relay ReplacementEstimate$133.15Shop/Dealer Price$152.72 - $188.87
1973 Mercury MontegoV8-5.8LService typeAutomatic Shutdown Relay ReplacementEstimate$121.11Shop/Dealer Price$137.66 - $164.76
1968 Mercury MontegoV8-4.7LService typeAutomatic Shutdown Relay ReplacementEstimate$126.11Shop/Dealer Price$142.52 - $169.52
1971 Mercury MontegoV8-7.0LService typeAutomatic Shutdown Relay ReplacementEstimate$126.11Shop/Dealer Price$142.89 - $170.18
Show example Mercury Montego Automatic Shutdown Relay Replacement prices

What is the Automatic Shutdown Relay all about?

When you turn the key for your ignition to start, many different things happen. The fuel pump turns on, sending gas from the tank, through the lines, to the injectors. The battery sends voltage to the ignition system, which creates a spark, igniting fuel vapor and starting your engine. However, if the automatic shutdown relay (ASD) is not working, none of this will happen.

The automatic shutdown relay controls the power that is supplied to the ignition, the fuel pump, and the injectors, as well as other components. It is only activated for a few seconds during cranking, and is then turned off. Depending on the make and model in question, the automatic shutdown relay could be located under the hood, under the dash, or in another position.

As with any other electrical component, your automatic shutdown relay is subject to wear and tear, and frequent stopping and starting of the engine will exacerbate that wear. Eventually, it will fail and you’ll be left with a vehicle that doesn’t crank.

Keep in mind:

  • The ASD relay is not inspected during normal maintenance, and will only be checked during diagnostics for problems with the vehicle not cranking.
  • Many other problems can cause your engine not to crank, so professional diagnosis is necessary.
  • ASD failure is relatively rare, but it does happen.

How it's done:

  • The automatic shutdown relay is verified to see if it needs to be replaced
  • The defective automatic shutdown relay is removed
  • The new automatic shutdown relay is installed
  • The automatic shutdown relay is tested for operation
  • The vehicle is tested to ensure proper operation of the automatic shutdown relay

Our recommendation:

Your automatic shutdown relay provides power for some of the most important systems on your vehicle during ignition. If it fails, your engine will not crank, and it cannot be jumpstarted. If you are experiencing a no start condition, it may be the ASD relay, but it could be another problem. Seek immediate professional diagnosis and replacement by one of our expert mechanics.

What common symptoms indicate you may need to replace the Automatic Shutdown Relay?

  • Engine will not start
  • Check Engine light is on
  • Engine starts but stalls and dies

How important is this service?

Without an operational automatic shutdown relay, your engine will not start, which means your vehicle is not able to move. However, there are many other problems that can create the same symptom, ranging from a dead battery to a damaged battery, or a damaged cable to a failed main relay. If your automatic shutdown relay has failed, you will have to replace it before your vehicle will operate again.

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Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(23)

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Simon

27 years of experience
298 reviews
Simon
27 years of experience
Mercury Montego V6-3.0L - Serpentine/Drive Belt Replacement - Silver Spring, Maryland
Was on time, very polite, did a excellent job. I would recommend simon again

Torrieanto

12 years of experience
632 reviews
Torrieanto
12 years of experience
Mercury Montego V6-3.0L - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Largo, Florida
He was very professional. Very willing to explain things I didn't understand about my car. He was very pleasant and kind.

Roger

15 years of experience
55 reviews
Roger
15 years of experience
Mercury Montego V6-3.0L - Oil Change - Austin, Texas

Carlos

25 years of experience
122 reviews
Carlos
25 years of experience
Mercury Montego V6-3.0L - Pre-purchase Car Inspection - Albany, California
Carlos is amazing! I booked him online for a pre-purchase inspection of a used car. He contacted me beforehand, and very punctuate. I was not on the spot and he checked every detail of the car and produced the report for me. He also gave me his estimation of the car's value. I bought the car thanks to his report. The whole process is very smooth. I will surely come to Carlos again if need a mechanic again I highly recommend Carlos to everyone in the area.

Excellent Rating

(23)

Rating Summary
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Number of Mercury Montego services completed
253+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

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