Toyota Tacoma Alternator Repair at your home or office.

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$237.97 - $717.76

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Average rating from customers who
received a Alternator Replacement.
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Alternator Repair Estimate for Toyota Tacoma

Toyota Tacoma Alternator Repair costs $306 on average.

CarServiceEstimateShop/Dealer Price
2016 Toyota TacomaL4-2.7LService typeAlternator RepairEstimate$654.95Shop/Dealer Price$813.32 - $1258.33
2003 Toyota TacomaL4-2.7LService typeAlternator RepairEstimate$410.95Shop/Dealer Price$508.38 - $770.43
1995 Toyota TacomaL4-2.7LService typeAlternator RepairEstimate$475.95Shop/Dealer Price$587.66 - $894.17
1999 Toyota TacomaL4-2.4LService typeAlternator RepairEstimate$481.95Shop/Dealer Price$596.37 - $908.29
2013 Toyota TacomaL4-2.7LService typeAlternator RepairEstimate$654.95Shop/Dealer Price$815.06 - $1261.37
2014 Toyota TacomaV6-4.0LService typeAlternator RepairEstimate$458.95Shop/Dealer Price$567.16 - $864.29
1995 Toyota TacomaV6-3.4LService typeAlternator RepairEstimate$494.95Shop/Dealer Price$610.23 - $932.91
2015 Toyota TacomaV6-4.0LService typeAlternator RepairEstimate$458.95Shop/Dealer Price$567.74 - $865.32
Show example Toyota Tacoma Alternator Repair prices

Service

What is an alternator and how does it work?

The alternator, which is bolted to the engine, keeps your car’s battery charged and produces the electrical power necessary to run the vehicle’s electrical systems. When starting your car, stored energy in the battery powers the starter motor. Once the engine is running, the alternator produces the electrical energy that your car needs by spinning a magnet on a rotor through a stationary coil of wire. To ensure that the alternator provides the right voltage output for your car’s electrical system, there is a voltage regulator built into the alternator. The voltage regulation is built into the car’s Powertrain Control Module (PCM) on newer vehicles.

Alternator

When to replace the alternator?

The following electrical or mechanical faults are signs that the alternator may need to be replaced:

  • Battery or charging system warning light. If a warning light has illuminated, the charging system and the vehicle battery should be tested to pinpoint the fault.
  • Difficulty starting your car or it doesn’t start. A faulty alternator will lead to the battery being discharged. Once the battery has discharged enough, you will have difficulty starting your car or it won’t start at all.
  • Dimming lights. Should the alternator have an internal electrical fault, such as a burned-out diode or open stator windings, the alternator will have less capacity to provide electrical power.
  • Grinding or whining noise. High heat created by the engine dries out the grease in the alternator bearings, wear occurs, and then the alternator can emit a grinding or whining noise as it spins. Certain electrical failures within an alternator can also cause a whining noise.
  • Premature Battery Failure. If the voltage regulator within the alternator has failed, and thus charging system output is too high, that can cause the battery to fail due to overcharging. Although this fault is not as common as a weak alternator, the possibility should always be considered if your car battery fails prematurely.
  • On an annual basis, or every 12,000 miles. The voltage output of the alternator should be carefully measured and compared to the OEM factory specification. Voltage output should also be checked whenever the vehicle battery is replaced.

How do mechanics replace an alternator?

  • Disconnect the battery prior to replacing the alternator, as with all electrical repairs.
  • Unhook the drive belt connected to the alternator.
  • The electrical connections to the alternator are removed and the alternator is unbolted from its cradle on the engine.
  • The new alternator is installed while observing all factory bolt torque specifications. Alternators have to be mounted to the engine very securely because they rotate at high speed. Electrical connections are cleaned and re-attached, including the connections to the battery.
  • While the drive belt is off, best practice is to inspect the drive belt as well as inspect all pulleys driven by the belt.
  • Once all components are securely in place, the vehicle engine is run and the output of the new alternator is measured and verified against the OEM factory specification.

Is it safe to drive with an alternator problem?

One should exercise caution. Should the alternator fail while you are driving, the battery alone will power the car’s electrical system for a short while. Cars require a substantial amount of electrical power though and the battery will likely discharge relatively quickly. The car may stall and it would be impossible to re-start if the battery discharged completely. When the battery or charging system warning light illuminates, the situation should be investigated and resolved as soon as possible.

When replacing the alternator keep in mind:

  • An alternator should always be tested to be sure it is actually faulty versus a circumstance where faulty electrical connections, or an open fuse, might be the problem.
  • An alternator that has noisy or worn out bearings should be replaced regardless of electrical test results.
  • A properly functioning battery is very important in modern cars and consequently the battery should be load tested when the alternator is replaced.
  • Alternators are designed to power all vehicle electronics and maintain a fully charged battery but if the battery has failed and won’t hold a charge, attempting to continually re-charge such a battery by driving can overload the alternator. Replace the battery and avoid repeatedly jump-starting your car.
  • Electrical connections, including grounds, are very important in the charging system. When replacing the alternator, all disconnected terminals should be inspected and cleaned and then checked to be sure all connections are properly tightened.

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Meet some of our expert Toyota mechanics

Real customer reviews from Toyota owners like you.

Excellent Rating


YourMechanic Toyota Tacoma Alternator Replacement Service

Average Rating

4.6/5

Number of Reviews

14

Rating Summary
13
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Jeremy

17 years of experience
180 reviews
Jeremy
17 years of experience
Amazing, fast and, great work. Thank you for the help
2006 TOYOTA TACOMA - ALTERNATOR - LAKE WORTH, FLORIDA

Lucas

18 years of experience
767 reviews
Lucas
18 years of experience
Lucas is an extremely competent mechanic that I would recommend to anyone, except maybe my mother-in-law (sarcastic joke) Lucas has been so professional and points extra things out to me that I would not know. He has done two repairs for me and I have the next time I need to have one done, I will be personally requesting him. If Lucas goes to another company, "Your Mechanic" has lost my business. I recommend this personal service, and I will tell everyone to request Lucas. I had a quote for a service on my truck, and Lucas punched in the info. with "Your Mechanic" and the rated he quoted me beat the other party by $1,000. The service is so convenient and personable and so is Lucas. GIVE HIM A RAISE, I think he is worth it.
2005 TOYOTA TACOMA - ALTERNATOR - BURBANK, CALIFORNIA

Jonathan

10 years of experience
107 reviews
Jonathan
10 years of experience
Professional, excellent work. Went above and beyond to keep me happy.
2007 TOYOTA TACOMA - ALTERNATOR - EAST TAUNTON, MASSACHUSETTS

Chris

15 years of experience
202 reviews
Chris
15 years of experience
Very thorough in explaining extra work that I needed on vehicle. Installed my alternator in a timely matter. I will definitely use his services again.
1998 TOYOTA TACOMA - ALTERNATOR - PEARLAND, TEXAS

Excellent Rating


YourMechanic Toyota Tacoma Alternator Replacement Service

Average Rating

4.6/5

Number of Reviews

14

Rating Summary
13
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13
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Red-stars EXCELLENT RATING ON
Number of Toyota Tacoma Alternator Replacement services completed
154+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1000+
experts on our platform

How can we help?

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