Audi Q7 Engine is misfiring 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

(228)

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

(228)

Engine is misfiring Inspection Service

How much does a Engine is misfiring Inspection cost?

On average, the cost for a Audi Q7 Engine is misfiring Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Audi Q7V6-3.0L Turbo DieselService typeEngine is misfiring InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2022 Audi Q7V6-3.0L Turbo HybridService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2017 Audi Q7L4-2.0L TurboService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2009 Audi Q7V8-4.2LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2007 Audi Q7V8-4.2LService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$112.55 - $125.72
2014 Audi Q7V6-3.0L Turbo DieselService typeEngine is misfiring InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2008 Audi Q7V8-4.2LService typeEngine is misfiring InspectionEstimate$99.99Shop/Dealer Price$117.28 - $130.25
2021 Audi Q7V6-3.0L Turbo HybridService typeEngine is misfiring InspectionEstimate$99.99Shop/Dealer Price$110.24 - $117.94
Show example Audi Q7 Engine is misfiring Inspection prices

When an engines misfires, it’s usually readily apparent to the driver from the stuttering and jerking produced by the engine when one or more cylinders fails to fire properly, either because of ignition- or fuel-related issues. It is accompanied by a loss of power in direct proportion to the severity of the misfire.

It can be tricky for to track down the problem if the misfire only occurs under certain circumstances, for example, under load. Not all misfires occur across the operating spectrum.

For older vehicles:

On older, carbureted vehicles, the culprit will almost certainly be in the ignition system as older vehicles lack many of the sophisticated sensors that can cause a misfire. A vacuum leak or a faulty fuel pump can also cause this symptom as well. The first thing the mechanic will do is determine which cylinder or cylinders is misfiring, and the spark plug color is probably the best way to tell. The guilty plug will most likely be grayer than the others, which should tend toward brown coloring. If needed, the spark plug can be replaced.

The next step would be checking the wiring to that plug for cracks and deterioration, and replace as necessary.

For most modern vehicles:

In modern cars, misfiring will invariably be accompanied by a Check Engine light. In fact, checking for efficient combustion was the primary reason the U.S. government introduced the rules for OBD-II (on-board diagnostics, second generation). It was part of the push toward cleaner exhaust emissions.

A code reader will tell you which cylinder is to blame, but it may not say whether it is a problem relating to the injector serving that cylinder or the systems delivering the ignition spark. As with older vehicles, a look at the wires and spark plugs is a good idea. Checking them in the dark will sometimes reveal errant spark tracking, as will spraying them with a fine water mist.

One way mechanics check which spark plug is failing to hold its own is by running the engine at an idle speed high enough to produce the misfire, then removing leads from the coilpack (the unit that looks like the distributor we are used to seeing in older vehicles ) one by one. Most removals will cause a profound change in idling performance, but a defective wire will not. That will suggest that it’s either the spark plug or the coil serving that cylinder at fault. If a new spark plug at that cylinder does not remove the stumble, the mechanic may need to replace the coil pack or the wires as a set.

If it isn’t an ignition issue, then the injectors will need to be checked. A mechanic uses a multimeter to check the resistance value at each injector. It may be a bit difficult to reach them, sometimes requiring the removal of an engine cover and the intake manifold. The mechanic disconnects the injector, then touches the multimeter probes to the two connector prongs to read the value, in Ohms. If any of the injectors read outside of the specified values, they will need to be replaced.

Along the same lines, a fuel pump starting to go bad can also cause misfires or similar issues and can be diagnosed with a fuel pressure check of the entire system with the appropriate equipment. This should only be done by a qualified mechanic as the fuel system is highly pressurized and of course, fuel is flammable.

Common reasons for this to happen:

  • Faulty spark plugs or wires
  • Faulty ignition coil
  • Broken piston rings
  • Burnt or bent valves
  • Broken valve springs
  • Camshaft worn out
  • Fuel injector is not working

What to expect:

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

How important is this service?

A misfiring engine is accompanied by a loss of power, which makes this issue a critical one to correct promptly. Book a mechanic to perform a thorough inspection as soon as possible.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(228)

Rating Summary
213
5
2
1
7
213
5
2
1
7

Jim

33 years of experience
185 reviews
Jim
33 years of experience
Audi Q7 V8-4.2L - Engine is misfiring - Danville, California
On time. Great communication. Very accommodating. Courteous, true professional. Excellent service. Thanks Jim!!

Maxwell

18 years of experience
390 reviews
Maxwell
18 years of experience
Audi Q7 V6-3.0L Turbo Diesel - Brake Light Switch - Cypress, Texas
A1 mechanic!

Nikolay

20 years of experience
62 reviews
Nikolay
20 years of experience
Audi Q7 V6-3.0L Turbo - Oil Change - San Diego, California
Showed up early, which worked well for me. Communicated prior to appointment, to confirm-which I appreciated. Thorough and resolved my needs for this service appointment. Was knowledgeable and competent in explaining to me the needs my vehicle required today and will be needing in the near future. All in all, very good service appointment, was a little lengthy-but understood based upon the diagnosis and my car not making the noise right away.

Tien

23 years of experience
903 reviews
Tien
23 years of experience
Audi Q7 V6-3.0L Turbo - Brake Pads Replacement (Rear) - Lafayette, California
Good communication, fast and reliable work. Highly recommend.

Excellent Rating

(228)

Rating Summary
213
5
2
1
7
213
5
2
1
7
Number of Audi Q7 services completed
2508+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform

Recent articles & questions

The Traveler’s Guide to Driving in Croatia
Croatia Croatia is a fascinating country that is finally getting more attention as a vacation destination. There are many historical sites to visit (http://www.adcidl.com/Driving-in-Croatia.html), as well as beautiful natural areas where you can hike and enjoy the scenery. If you...
Disabled Driver Laws and Permits in Idaho
Disabled Disabled driver laws vary from state to state. It is important that you understand the rules in your state, whether you are a disabled driver or not. How do I know if I am eligible for a disabled parking...
How Much Does a Mechanic Make in Delaware?
Automotive technician jobs in Delaware have an mean salary of $40k, with some mechanics earning as much as $43k.

Sounds like a belt is loose

Depending on the engine that is in your particular vehicle, you might not have a timing belt but a chain. Timing belts don't really make noises associated with lose belts. If a timing belt is loose the engine will jump...

grinding noise (not squealing) when brake

If the issue did not exist prior to the work being done, then the cause of the unusual noise is due to the pads and/or the interaction between the pads and the particular finish that was left on the rotor....

I think I have power steering pump problem bcos car make some little noise just recently few days ago however is running fine

You should have the power steering checked to see if fluid is low and make sure you are using only approved Mercedes fluid or you can damage the power steering components. I would not recommend replacing the pump until the...

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