Lexus ES300h Car is getting worse gas mileage Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(23)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(23)

Car is getting worse gas mileage Inspection Service

How much does a Car is getting worse gas mileage Inspection cost?

On average, the cost for a Lexus ES300h Car is getting worse gas mileage Inspection is $105 with $0 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$124.99Shop/Dealer Price$139.69 - $150.72
2016 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$104.99Shop/Dealer Price$119.72 - $130.77
2015 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$104.99Shop/Dealer Price$119.72 - $130.77
2019 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$104.99Shop/Dealer Price$113.39 - $119.68
2022 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$104.99Shop/Dealer Price$113.42 - $119.75
2014 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$104.99Shop/Dealer Price$119.72 - $130.77
2018 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$124.99Shop/Dealer Price$130.87 - $135.28
2021 Lexus ES300hL4-2.5L HybridService typeCar is getting worse gas mileage InspectionEstimate$124.99Shop/Dealer Price$131.24 - $135.94
Show example Lexus ES300h Car is getting worse gas mileage Inspection prices

Poor gas mileage, especially a sudden drop in fuel efficiency, can be blamed on a number of issues. It can also be an indicator of a much more serious issue that if left un-repaired, can develop into an expensive repair.

There are dozens of problems that can lead to a drop in gas mileage, some of them are serious and some can be easily corrected. Here are some of the more common issues that can affect the fuel efficiency of most cars.

How this system works:

The fuel system stores and supplies fuel to the car to help drive the engine. Fuel is mixed with air, atomized and vaporized in the engine intake system. It is then compressed in the engine cylinder and ignited which produces energy to move the pistons. There are different engine layouts and designs but most of them work in the same basic way.

When the system is working as designed, and under certain conditions, maximum fuel efficiency will be achieved. Numerous factors can have an affect on fuel efficiency so it is usually a constantly changing number but a serious and sudden drop in miles per gallon is cause for concern and the vehicle should be inspected.

Common reasons for this to happen:

  • Dirty Oxygen Sensor: An oxygen sensor measures exactly how rich or lean the exhaust gases are when they leave the combustion chamber. The data is used by the vehicle computer to adjust the amount of fuel entering the engine. If the sensor is dirty or failing it can lead to a drop in miles per gallon. It can also lead to failed emission tests and a rough idle.

  • Dirty Fuel Injectors: Fuel injectors spray fuel into the cylinders where it is mixed with air and ignited. Over time the fuel injector system can become clogged. This can lead to a drop in fuel efficiency as well as slow acceleration and the car not having enough power. If caught early, simply cleaning the injectors can solve the problem. As it progresses, the injectors may have to be replaced.

  • Bad or Dirty Spark Plugs: Spark plugs ignite the fuel in the combustion chamber. If they are dirty or working incorrectly, it can cause the engine to misfire, leading to poor engine performance. This can lead to a lack of power as well as a big decline in fuel efficiency.

  • Malfunctioning Mass Airflow Sensor: A mass airflow sensor detects the amount of air coming into the fuel injection system. It delivers that information to the vehicle's computer, which crunches the numbers and then delivers the proper amount of fuel to the air in the vehicle. A dirty airflow sensor will degrade fuel efficiently and lead to a rough idle and even stalling as the problem progresses.

  • Misaligned Tires: Tires that are low or out of alignment can lead to a drop in fuel efficiency. Checking the tire pressure and have the alignment checked on regular basis can help prevent this problem.

  • Defective Fuel Pump: Fuel delivery issues can drastically affect fuel efficiency. The fuel pump pulls fuel from the gas tank to the fuel injectors. The fuel pump can become clogged or malfunction. A bad fuel pump can lead to a rough running engine because it is not getting enough fuel. This will lead to a decline in gas mileage. If this issue is not addressed it will lead to a rough, idle, sputtering and stalling.

  • Clogged Fuel Filter: A clogged fuel filter will also cause problems with gas mileage. The fuel filter screens out contaminants in the fuel, and over time it will become clogged. Fuel filters need to be replaced periodically.

  • Stuck Brake Caliper: A stuck caliper on a disc brake or a stuck shoe on a drum brake can lead to a serious decline in gas mileage. In addition, any brake issue can make the vehicle dangerous to drive. If the decline in efficiency is accompanied by the vehicle pulling to one side, the brake system should be inspected immediately.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the poor gas mileage issue and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

A mechanic will inspect your fuel injectors, spark plugs, airflow sensor, tires and other important components to reach an accurate diagnosis. It may be necessary for the mechanic to test drive the car to produce acceptable results and pinpoint the source of the problem.

How important is this service?

A few of these issues are easy to fix but others are an indicator of a much more serious problem. Issues related to the fuel system will eventually lead to a rough running engine, stalling, and a car that won’t start at all.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(23)

Rating Summary
21
2
0
0
0
21
2
0
0
0

Grzegorz

41 years of experience
473 reviews
Grzegorz
41 years of experience
Lexus ES300h L4-2.5L Hybrid - Oil Change - San Francisco, California
Excellent

Adrian

12 years of experience
39 reviews
Adrian
12 years of experience
Lexus ES300h L4-2.5L Hybrid - Oil Change - Milpitas, California
He is good.

Chris

22 years of experience
2266 reviews
Chris
22 years of experience
Lexus ES300h L4-2.5L Hybrid - Pre-purchase Car Inspection - Temecula, California
Amazing guy.... called and gave me what felt to be his honest and straightforward opinion on my vehicle.... def will book him again in the future for work

Tinashe

13 years of experience
644 reviews
Tinashe
13 years of experience
Lexus ES300h L4-2.5L Hybrid - Oil Change - Smyrna, Georgia
Tinashe was on time, performed an excellent service and great communication!

Excellent Rating

(23)

Rating Summary
21
2
0
0
0
21
2
0
0
0
Number of Lexus ES300h services completed
253+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

Recent articles & questions

P0023 OBD-II Trouble Code: Camshaft Position B - Actuator Circuit (Bank 2)
P0023 P0023 code definition Camshaft Position B - Actuator Circuit (Bank 2) What the P0023 code means P0023 is the OBD-II generic code indicating the Engine Control Module (ECM) has determined that the bank 2 exhaust camshaft Oil Control Valve...
How to Put a Patch on a Punctured Tire
Getting a flat tire (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-flat-tire) can put a damper on your day and your wallet. Tires can go flat due...
How to Get Smog Technician Certified in Connecticut
Automotive technician jobs include smog certified emissions inspectors. In Connecticut, you need to work at an emissions testing station.

Car won't start

Hi there. A loose connection at the battery can cause starting problems. The power and ground sides of any circuit need to have good connections for their components to work properly. A fully charged battery and a no start situation...

I have a loud clunk in my front suspension on my 2005 nissan titan. I've read that I may need a new sway bar and ball joints.

Hi there. When adding a lift kit to any vehicle its important to replace the ball joints so they are not damaged when the standard lift is removed. Plus, either the sway bar could be replaced or extensions could be...

Traction control light is on and won't turn off on dry surface

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com