Top Dead Center (TDC) Replacement at your home or office.

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How much does Top Dead Center (TDC) Sensor Replacement cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

YourMechanic Price
$139 to $176
Labor: $70 -$80
Parts: $69 -$96
Average Dealer price
$230 to 285
Average Shop price
$169 to 203
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
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ServiceYourMechanic PriceShop/Dealer Price
Top Dead Center (TDC) Sensor Replacement for 2001 Jaguar XJ8 V8-4.0LYourMechanic Price$144.16Shop/Dealer Price$199.00 - $281.84
Top Dead Center (TDC) Sensor Replacement for 2002 Honda Civic L4-1.7LYourMechanic Price$171.83Shop/Dealer Price$211.88 - $299.20
Show example Top Dead Center (TDC) Sensor Replacement prices

Top Dead Center (TDC) Sensor Replacement Service & Cost

What is the Top Dead Center (TDC) Sensor all about?

Every engine, whether a single cylinder engine or a V8 engine, has top dead center. This position is a reference point for engine timing and indicates when a spark plug should fire, igniting the fuel the cylinder’s combustion chamber. Top dead center is when the piston is at the very top of its compression stroke. At this position, the intake and exhaust valves in the cylinder head are closed and the air-fuel mixture is compressed in the cylinder. The TDC sensor monitors a reference point on the camshaft that indicates where top dead center is on a cylinder, usually cylinder number one. It sends a signal to the engine control module which, in turn, communicates to send a spark to the cylinder at top dead center. The spark ignites the fuel and the power stroke begins as the piston is forced downward. The TDC sensor is an electrical component and is prone to failure due to corrosion, cracking, or wearing out. If that occurs, the engine control module may not receive a correctly timed signal and the spark may be sent to the wrong cylinder at the wrong timing, causing your engine to run rough or not run at all.

Keep in mind:

  • The top dead center (TDC) sensor is integral to the proper timing of your vehicle. If it is installed incorrectly, your vehicle will not run or run very poorly.

How it's done:

  • The vehicle battery is disconnected
  • The defective top dead center sensor is removed
  • The new top dead center sensor is installed
  • The battery is connected and the engine is scanned and cleared of codes
  • The repair is verified and the vehicle is road tested for proper operation

Our recommendation:

If your car’s Check Engine light turns on, or if the engine will not run or runs poorly, have one of our expert mechanics inspect the problem and replace the TDC sensor if required.

What common symptoms indicate you may need to replace the Top Dead Center (TDC) Sensor?

  • Engine will not fire or run
  • Engine runs poorly and misfires
  • Check Engine light is on
  • Backfiring is heard from the exhaust

How important is this service?

Since the TDC sensor is integral to a running engine, it is important to address the operating issues associated with it as soon as possible. Other than a possible stalling condition, there are no associated safety concerns with the TDC.

Fast and easy Top Dead Center (TDC) Sensor Replacement service at your home or office.

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274 reviews
Noe
31 years of experience
Great mechanic!
1993 HONDA CIVIC DEL SOL - CAR STARTS AND THEN DIES INSPECTION
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3 reviews
Dave
11 years of experience
Dave was great, he diagnosed the electrical issues and found 2 blown fuses that were causing a "no-start". It might sound silly to some, but if you have not checked electrical systems before, they can be a bear! Good work Dave!
1999 TOYOTA SIENNA - CAR IS NOT STARTING INSPECTION
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2 reviews
Sam
25 years of experience
Sam was very nice. He was prompt and did the job quickly. I needed a new starter and he had it replaced in under an hour. He was very professional and personable. I highly recommend him to anyone.
1999 DODGE GRAND CARAVAN - STARTER REPLACEMENT
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2 reviews
Abdy
12 years of experience
This was my first experience with YourMechanic.com. Abdy was EXCELLENT!! He gave great customer service, explained in detail what he was doing, did a test to make sure it was my vehicle's starter and replaced it in less than an hour. Also, I was surprised by the additional inspection that is required and the report that was given to me at no extra cost. I'm impressed with MyMechanic.com. We were worried about where and how to tow our car and the cost but YourMechanic.com and Abdy took all the worries away. I will definitely recommend Abdy and YourMechanic.com to everyone.
2005 TOYOTA COROLLA - STARTER REPLACEMENT
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Top Dead Center (TDC) Sensor Replacement for 2001 Jaguar XJ8 V8-4.0LYourMechanic Price$144.16Shop/Dealer Price$199.00 - $281.84
Top Dead Center (TDC) Sensor Replacement for 2002 Honda Civic L4-1.7LYourMechanic Price$171.83Shop/Dealer Price$211.88 - $299.20
Show example Top Dead Center (TDC) Sensor Replacement prices

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