BMW 840i Car is not getting enough power 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

(6,828)

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

(6,828)

Car is not getting enough power Inspection Service

How much does a Car is not getting enough power Inspection cost?

On average, the cost for a BMW 840i Car is not getting enough power Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2020 BMW 840iL6-3.0L TurboService typeCar is not getting enough power InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2021 BMW 840iL6-3.0L TurboService typeCar is not getting enough power InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2022 BMW 840iL6-3.0L TurboService typeCar is not getting enough power InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
Show example BMW 840i Car is not getting enough power Inspection prices

When a vehicle seems to lose power, or is not getting enough power when you stomp down on the gas pedal it is not only annoying, it can be dangerous. Pulling out onto a highway or across a busy intersection, only to have the vehicle hesitate or stall can lead to a perilous situation.

In most cases a lack of power can be traced back to a fuel system malfunction. Issues can range from a leaking fuel line to a bad fuel pump. Regardless of the cause, an engine that is not getting enough power should be serviced immediately.

How this system works:

The fuel system supplies fuel to the engine. The combustion chamber is where fuel is mixed with air, atomized and then ignited. Fuel systems vary depending on the vehicle but they all have the same basic components.

Fuel is stored in the gas tank and a fuel pump pushes fuel through the fuel lines to a fuel filter and then into the fuel injectors. On older vehicles the fuel is delivered to the carburetor and throttle body injection system. The fuel injectors spray fuel into the cylinder where it mixes with air and ignites during compression. The resulting explosion drives the pistons.

Common reasons for this to happen:

  • Defective Fuel Pump or Filter: The fuel pump supplies the engine with fuel and if it malfunctioning the car will experience a loss of power. Over time fuel pumps can wear out or become clogged with contaminants, which prevents it from pushing fuel to the injectors. This can cause the vehicle to sputter at high speeds, stall, or hesitate during acceleration. A clogged fuel filter can also cause these problems. Fuel filters should be changed on a regular schedule.

  • Clogged or Bad Fuel Injector: Like a fuel pump, injectors can become clogged due to fuel contaminates, hydrocarbons and additives. A clogged injector will degrade performance and the engine will feel like it is not getting enough power. It can also make the vehicle hard to start, idle roughly and effect fuel consumption.

  • Leaking Fuel Line: A leaking fuel line will not provide enough fuel to the injectors, which can result in a lack of power. If there is a strong smell of fuel in the cabin of the car or a puddle of fuel underneath the vehicle a fuel line issue is usually the problem. This should be addressed immediately.

  • Vacuum Leak: A vacuum leak can affect the computers ability to properly regulate the fuel to air ratio, which can cause a lack of power. In most cases, a vacuum leak will trigger the Check Engine light to come on.

  • Dirty Airflow Sensor: An airflow sensor detects the mass of air that is entering the fuel injection system and passes that information to the engine’s computer so it can correctly deliver the right amount of fuel. A failing or dirty airflow sensor will send the wrong signals to the computer. A lack of power during acceleration is a common symptom. This problem will also trigger a Check Engine light.

Clogged Catalytic Converter: If your catalytic convertor is clogged or starting to fail it can prevent the proper flow of air through the engine. This can lead to a loss of power. The vehicle will also run hotter than usual.

What to expect:

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

How important is this service?

A vehicle that is not getting enough power should be inspected as soon as possible. It can be dangerous to drive, and fuel system problems that are not fixed can often lead to more expensive repairs as more components are affected.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,828)

Rating Summary
6,369
206
60
45
148
6,369
206
60
45
148

Chris

22 years of experience
2266 reviews
Chris
22 years of experience
BMW 335i L6-3.0L Turbo - Coolant is leaking - San Juan Capistrano, California
I've used Chris a few times now - He's truly a master mechanic and a nice guy as well. My car is somewhat complex but taking it to the dealer runs over $1,000 every time I walk through the door. Going to an independent German auto shop can cut the price in half, but having Chris come out more than cuts it in half again. I wouldn't hesitate using him on any car for anything needed and give him my highest recommendation. Use him and you can't go wrong.

Robert

20 years of experience
1126 reviews
Robert
20 years of experience
BMW 335i xDrive L6-3.0L Turbo - Starter - Arvada, Colorado
He did a great job!

Rodney

36 years of experience
561 reviews
Rodney
36 years of experience
BMW X5 L6-3.0L - Brake Pads Replacement (Front, Rear) - Roseville, California
Rodney was very professional and courteous. Completed the work in the time quoted, and performed beyond my expectations.

Nicholas

11 years of experience
597 reviews
Nicholas
11 years of experience
BMW 328i L6-3.0L - Brake Pads Replacement (Front) - Raleigh, North Carolina
Nick did a fantastic job with some maintenance items on my BMW. He's knowledgeable and competent.

Excellent Rating

(6,828)

Rating Summary
6,369
206
60
45
148
6,369
206
60
45
148
Number of BMW services completed
75108+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

P0317 OBD-II Trouble Code: Rough Road Hardware Not Present
P0317 P0317 code definition The P0317 code means that the PCM has indicated that rough road hardware is not present. What the P0317 code means When the P0317 code is present, the powertrain control module has found a variation in...
P0944 OBD-II Trouble Code: Hydraulic Pressure Unit Loss of Pressure
P0944 is defined as a loss of pressure/“prime” within the transmission’s hydraulic pump often due too failure of the transmission pump or blockages.
B1945 OBD-II Trouble Code: Airbag Crash Sensor #2 Ground Circuit Open
B1945 means there is an open circuit condition in the airbag circuit, likely due to damaged wiring or a faulty sensor.

My 2005 Acura TL is running hot. We have replaced radiator coolant fan heater adjustment valve and thermostat .. what could be mak

Thank you for your question. We can definitely help you. The only way coolant can "disappear" in your cooling system is through an external or (less common) internal leak (https://www.yourmechanic.com/services/coolant-is-leaking-inspection). YourMechanic can pressurize the cooling system when cold (so it...

Went to Jiffy Lube got a oil change

To determine if an engine is seized, one would turn it clockwise by hand using a wrench and socket applied to the crankshaft pulley bolt. That test is made easier if you remove the spark plugs so that there is...

car stalls when cold until warmed up

It may be best to have a certified technician with the proper scan tool look into the check engine light fault (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) as well as the entire system. Sometimes a fault will not set a code, or the code set...

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 (855) 347-2779 · hi@yourmechanic.com