Toyota Sienna Engine hesitates during acceleration 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

(1,007)

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

(1,007)

Engine hesitates during acceleration Inspection Service

How much does a Engine hesitates during acceleration Inspection cost?

On average, the cost for a Toyota Sienna Engine hesitates during acceleration Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Toyota SiennaV6-3.5LService typeEngine hesitates during acceleration InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2016 Toyota SiennaV6-3.5LService typeEngine hesitates during acceleration InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
1998 Toyota SiennaV6-3.0LService typeEngine hesitates during acceleration InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2015 Toyota SiennaV6-3.5LService typeEngine hesitates during acceleration InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
2022 Toyota SiennaL4-2.5L HybridService typeEngine hesitates during acceleration InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2019 Toyota SiennaV6-3.5LService typeEngine hesitates during acceleration InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2004 Toyota SiennaV6-3.3LService typeEngine hesitates during acceleration InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
2001 Toyota SiennaV6-3.0LService typeEngine hesitates during acceleration InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Toyota Sienna Engine hesitates during acceleration Inspection prices

It can be frustrating for any driver to expect certain acceleration from their vehicle only to find that the vehicle seems to be hesitant while speeding up. This hesitation could be potentially dangerous in situations like entering and exiting the highway from an off-ramp, where acceleration may be necessary to merge with traffic. A vehicle that struggles or hesitates to accelerate may be unpredictable and moments of hesitation may be coupled with equally dangerous moments of surging or unexpected acceleration. When a vehicle is hesitating during acceleration, it should be inspected by a mechanic.

How this system works:

A vehicle with a combustion (gas or diesel) engine requires an exact mixture of fuel and air to run efficiently. If this mixture is thrown off in any way, it may result in an engine running too lean (not enough air), or too rich (not enough fuel). An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean. Engine’s that are running inefficiently will begin to show signs like hesitation which will only become worse over time. If you notice some symptoms like hesitation, you should have your vehicle inspected immediately.

Common reasons for this to happen:

  • Mass Airflow Sensor: The mass airflow sensor measures how much air is entering the engine and relays this information to the vehicle’s computer so that the right amount of fuel can be delivered from the fuel injectors. When a mass airflow sensor begins to fail, it will typically generate an error code or “Check Engine light.” This warning may be accompanied by hesitation while accelerating, or while driving up a hill. A vehicle with a failing mass airflow sensor may also stall soon after starting.

  • Fuel Pump: The fuel pump in most modern vehicles sits inside the fuel tank and pumps fuel up to the engine. If a fuel pump cannot provide the correct pressure, fuel may have difficulty making it to the engine. A vehicle that hesitates while accelerating or while driving up a hill may have a weak fuel pump.

  • Throttle position sensor: A throttle position sensor tells the vehicle’s computer how far the throttle is open and how hard the accelerator is being pressed. The computer is then able to adjust the fuel/air mixture going to the engine so that is stays at an appropriate level. If the throttle position sensor is not working properly, it may be sending incorrect information to the vehicle’s computer. The computer may then not provide the engine with the correct amount of air while accelerating, causing a hesitation sensation.

  • Dirty/failing fuel injectors: Fuel injectors spray fuel in a fine mist into the cylinder where it is mixed with air and ignited by a spark plug. Fuel injectors may become dirty over time and not be able to provide as much fuel to the cylinder as is needed. Dirty fuel injectors may cause the engine to run lean which will in turn, cause hesitation when accelerating.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the reason why your vehicle is hesitating while accelerating. The mechanic will then provide a detailed inspection report outlining the nature of the hesitation and the cost of any repairs that need to be made.

How it's done:

A mechanic will first plug into your vehicle’s computer using a code reader/scanner to better identify what the exact issue is. In addition to reading trouble codes, he or she should also be able to get readings of oxygen/fuel intake to make sure those numbers are where they should be. Once the mechanic gets this information they can begin to fix any potential issues.

If the mechanic believes that the mass airflow sensor has gone bad or is failing, he or she will first examine the sensor for any superficial damage. The mechanic will also ensure that the sensor is wired correctly and that no damage has been done to the wire harness. The mechanic should then remove the mass airflow sensor and replace it with a new one if necessary.

If the mechanic believes the problem is the fuel pump, he or she will remove the fuel tank if necessary to inspect the pump. If the pump has indeed failed, the mechanic will replace it. If the fuel tank itself it beginning to show signs of age, it may be convenient to change the pump and tank at the same time.

If the mechanic suspects the throttle position sensor, he or she will test the throttle position sensor and it’s wiring to see if it is functioning properly. If it is not, the mechanic will remove the throttle positioning sensor and the wiring and replace them. In between removing the old sensor and replacing the new one, the mechanic should take the opportunity to clean the throttle body. The mechanic will then ensure the new throttle positioning sensor is working properly and transmitting the correct information to the vehicle’s computer.

If the mechanic believe the problem is dirty or failing fuel injectors, he or she will inspect the injectors to check for any signs of damage or leakage. The mechanic should also take this opportunity to replace the fuel filter if it is not a part of the fuel pump. They will then replace the injectors and test them to make sure they are functioning properly.

In all cases, the mechanic will start the vehicle to make sure that all of the new components are working properly. In the event that an issue has caused a warning light to come on, the mechanic will be able to clear the trouble code associated with the light using a reader/scanner.

How important is this service?

Sluggish acceleration can be annoying for drivers who expect more power form their car, but it can also be dangerous in certain situations. The unpredictable nature of an engine that hesitates can increase the chance of a potential accident especially when trying to merge in and out of heavy traffic. If you notice that your vehicle seems to be underpowered, especially when accelerating, you should not drive it if possible until it can be inspected by a mechanic.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Toyota mechanics

Real customer reviews from Toyota owners like you.

Excellent Rating

(1,007)

Rating Summary
948
33
7
3
16
948
33
7
3
16

Manuel

12 years of experience
82 reviews
Manuel
12 years of experience
Toyota Sienna V6-3.0L - Engine hesitates during acceleration - Naples, Florida
On time and efficient.

Ralph

38 years of experience
185 reviews
Ralph
38 years of experience
Toyota Sienna V6-3.0L - Engine hesitates during acceleration - Kent, Washington
thanks

Chet

41 years of experience
491 reviews
Chet
41 years of experience
Toyota Sienna V6-3.5L - Engine hesitates during acceleration - San Diego, California
Knowledge, but slow on communication with client. Appointment was on time, but stretched out.

Robert

42 years of experience
232 reviews
Robert
42 years of experience
Toyota Sienna V6-3.3L - Brake Pads Replacement (Front) - Katy, Texas
Robert arrived on time and found that rear pads and rotor were good so did not replace. Replaced front rotor and pads and found couple of other issues with solutions. Very happy with his work.

Excellent Rating

(1,007)

Rating Summary
948
33
7
3
16
948
33
7
3
16
Number of Toyota Sienna services completed
11077+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1600+
experts on our platform

Recent articles & questions

How Often Does My Car Need New Transfer Case Fluid?
A transfer case is a part of a drivetrain system. Its primary function is to engage the axles of multi-axle vehicles....
How to Buy a Good Quality Heat Shield
Heat Heat shields are used to keep everything cool and under wraps when you are heating it up on the track or just on the road in a hot part of the country. A heat shield provides necessary protection for...
P0764 OBD-II Trouble Code: Shift Solenoid C Intermittent
P0764 means a faulty shift solenoid and irregular voltage readings; caused by a failed shift solenoid, internal ATF blockages

The dome light will not turn off.

Hello. Thanks for writing in. There is typically a switch on the dashboard next to the headlight controls in which will turn on the interior lights. To start, locate this switch and make sure it is off. It may have...

How to replace the cam shaft sensor.

The camshaft sensor on this engine is mounted on top of the synchronizer in the front center of motor. The noise may be in the housing and not the sensor. The sensor can be removed from the synchronizer housing and...

I have a power steering fluid leak, stop leak didn't work. How long car I drive with that problem.

If the leak is not large and you are able to keep the power steering reservoir full by adding back the missing fluid, you can probably drive the car for quite some time. However, such is impractical and thus professional...

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