Lexus GS400 Ignition Coil Replacement at your home or office.

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Ignition Coil Replacement Service

How much does a Ignition Coil Replacement cost?

On average, the cost for a Lexus GS400 Ignition Coil Replacement is $1311 with $1171 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Lexus GS400V8-4.0LService typeIgnition Coil ReplacementEstimate$2496.76Shop/Dealer Price$3088.50 - $4849.55
1999 Lexus GS400V8-4.0LService typeIgnition Coil ReplacementEstimate$2487.75Shop/Dealer Price$3076.40 - $4835.13
2000 Lexus GS400V8-4.0LService typeIgnition Coil ReplacementEstimate$2487.75Shop/Dealer Price$3076.44 - $4835.20
Show example Lexus GS400 Ignition Coil Replacement prices

What is an ignition coil and how does it work?

An ignition coil transforms ignition voltage (12 volts) to the very high voltage pulses (20,000 volts or more) that fire the spark plugs. The number of ignition coils varies depending on car model and year of production. Older cars will have one coil covering all engine cylinders while newer cars may have a coil-on-plug type arrangement — that is every cylinder will have its own dedicated ignition coil.

Ignition Coils

When to consider replacing an ignition coil:

  • Hard starting or no start. Ignition coils are subject to heat damage and electrical overload, both of which can cause partial or total failure. If the coil is faulty, you may have difficulty starting your car or it may not start at all.
  • Misfiring, loss of power, poor acceleration. Once the car is running, a bad ignition coil can cause poor operation of the engine. Should you have misfiring or loss of power, faulty ignition coils would be among the list of causes a mechanic would investigate. The Check Engine Light will often come on with a trouble code(s) indicating which cylinders are involved.

How do mechanics replace the ignition coil?

  • The ignition is checked to assure it is in the “off” position.
  • For single coils that supply all cylinders, the coil is disconnected from either a bracket located in the engine compartment or, in some cases, is removed from within the distributor. The replacement coil is secured and all electrical connections reattached. If the distributor was removed for any reason, the timing is adjusted as required.
  • For individual coil-on-plug applications, the coil is detached from the top of the individual spark plug and replaced.
  • Once the coil is securely in place, all electrical connections are reattached, and timing adjusted as needed, the car is road tested to ensure normal operation.

Is it safe to drive with an ignition coil problem?

Yes. A malfunctioning ignition coil will cause loss of power and lower fuel efficiency but that will not present an immediate safety issue. If the coil malfunction is causing misfiring, this will allow unburned fuel to enter and permanently damage the catalytic converter from overheating.

When replacing an ignition coil keep in mind:

  • Ignition coil failure can be caused by faulty spark plugs or wires. The mechanic will inspect and may recommend replacement of those components.
  • In a coil-on-plug ignition system, if only one coil fails, you need only replace the faulty coil. Remaining functioning coils can be left in place.
  • In systems with the coil located in the distributor, it may be more cost-effective to replace the entire distributor rather than remove and replace just the coil.

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Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(35)

Rating Summary
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Nazareth

28 years of experience
345 reviews
Nazareth
28 years of experience
Lexus GS400 V8-4.0L - Alternator - Whittier, California
On time great personality Knowledgeable and had all his tools talked me through everything he was goi and went to work Was done pretty quick I would recommend him to any one

Chris

17 years of experience
122 reviews
Chris
17 years of experience
Lexus GS400 V8-4.0L - Inspection / Diagnostics - Los Angeles, California
While AAA essentially diagnosed and fixed the (immediate) problem with my vehicle, Chris followed up with a more thorough inspection of my engine, brake pads, and tires. There is only so much you can check on without the car being pulled to a station or a shop, however Chris did ALL that he could while he was there servicing my vehicle. Aces across the board!

Irvin

23 years of experience
46 reviews
Irvin
23 years of experience
Lexus GS400 V8-4.0L - Steering wheel is hard to turn - Atlanta, Georgia
Thanks for everything Doug hope to see you soon

Godwin

25 years of experience
253 reviews
Godwin
25 years of experience
Lexus GS400 V8-4.0L - Oil Change - Los Angeles, California
Arrived on time and was very courteous, professional and friendly. He's extremely knowledgable, and answered all of my questions and explained everything clearly, in depth and gave solid advice on maintaining my car even though some questions were not related to the contracted job. Two thumbs up!

Excellent Rating

(35)

Rating Summary
34
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1
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Number of Lexus GS400 services completed
385+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

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