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PETROL INJECTOR TESTING & CLEANING IN WALSALL & UK-WIDE

At Midland Autocare, we provide professional petrol injector testing and ultrasonic cleaning to diagnose and resolve common issues such as poor running, flat spots, misfires and high fuel consumption.

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EXPERT PETROL INJECTOR TESTING & CLEANING

Smooth acceleration, stable idle and good fuel economy all rely on healthy petrol injectors. Over time, injectors can suffer from internal deposits, uneven spray patterns or reduced flow, which can lead to misfires, hesitation, flat spots and increased fuel use. Even a small imbalance in flow between injectors can noticeably affect performance and drivability.

Our professional testing and ultrasonic cleaning service helps identify these issues and restore consistent, efficient engine operation. By checking spray pattern, fuel delivery and response, we can show you exactly how each injector is performing and what improvement has been made after cleaning. This gives you clearer insight into your engine’s condition and helps prevent unnecessary parts replacement.

SIGNS YOUR PETROL INJECTORS NEED ATTENTION

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Loss of power or sluggish
acceleration

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Poor fuel economy

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Rough idle, misfires
or hesitation

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Hard starting, especially
when cold

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Strong fuel smell or
excessive smoke

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Engine warning light
on the dashboard

Testing injectors early can prevent unnecessary part replacements and improve driveability.

WHAT OUR PETROL INJECTOR TESTING & CLEANING INCLUDES

Every set of petrol injectors goes through a clear, step-by-step testing and cleaning process, allowing you to see exactly what’s been checked, how each injector performed and what the results mean for your engine.

PETROL INJECTOR TESTING

Our petrol injector testing typically includes:

  • Flow test — checks fuel delivery from each injector
  • Spray pattern test — confirms an even, correct spray
  • Back leak test — identifies internal leakage that affects performance
  • Solenoid test — ensures the injector is opening and closing correctly

PETROL INJECTOR CLEANING

Once tested, your injectors are:

  • Cleaned in an ultrasonic tank to remove deposits
  • Restored for smoother, more consistent performance

CLEAR RESULTS & HONEST ADVICE

When testing is complete, we:

  • Show you how each injector performed
  • Explain what the results mean for your engine
  • Recommend sensible next steps before you spend money on new parts

WHY CHOOSE MIDLAND AUTOCARE

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CONVENIENT WALSALL LOCATION

Our Walsall workshop is easy to reach for customers across the West Midlands, making it simple to drop off petrol injectors for testing and cleaning. We also support UK-wide drivers, traders and garages through our secure postal service, ensuring the same professional, reliable results no matter where you’re based.

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FAST TURNAROUND

We know how quickly injector problems can affect performance, so we prioritise efficient turnaround on all petrol injector testing and cleaning. Our workshop processes and specialist equipment help us diagnose issues and restore injector performance without unnecessary delays, reducing the need for costly replacement parts.

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CLEAR, HONEST EXPLANATIONS

We believe in transparency from start to finish. After your petrol injectors have been tested and cleaned, we take the time to walk you through the results in a clear and straightforward way. You’ll see how each injector performed in terms of spray pattern, flow rate and response, and understand what these readings mean for engine smoothness, power delivery and fuel efficiency. This gives you complete confidence in how your injectors are operating and what impact they may be having on your vehicle’s performance.

You’ll only ever receive genuine, straightforward recommendations based on the actual condition of your injectors — no upselling, no pressure and no guesswork. If your injectors test healthy after cleaning, we’ll tell you. If one or more continue to show faults, we’ll explain why and outline the most cost-effective solution to get your engine running properly again. Our goal is to provide honest guidance and accurate information so you can make the right decision for your vehicle and your budget.

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RELIABLE, STRAIGHTFORWARD SERVICE

Our aim is to keep your engine running smoothly through accurate testing, ultrasonic cleaning and practical advice you can trust. Whether you’re a private driver, trader or garage, you’ll receive dependable results, clear communication and a service focused entirely on what your vehicle genuinely needs.

SERVING WALSALL, THE MIDLANDS & THE UK

We serve Walsall and nearby areas including:

Walsall

Darlaston

Wolverhampton

West Bromwich

Willenhall

Great Barr

Bloxwich

Birmingham

Aldridge

UK-wide customers.

We support customers across Walsall, the West Midlands and nationwide. Many drivers, traders and garages send petrol injectors to us via courier for testing and cleaning.

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Audi
Group 260
Nissan
Honda
Subaru
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Mitsubishi
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BOOK YOUR PETROL INJECTOR TEST & CLEANING TODAY





What our customers are saying

Yesterday was the first time of taking my car to this garage and I was pleased with how fast they did the mot, within 3 hours it was done regardless of other cars being in on the same day as mine. Excellent service and they even helped me with my problem of putting new batteries in both of my key fobs as i was struggling to do them myself due to it being very tricky to remove the casing, I will definately be using them in the future.

Great service kept me informed all the way through. Took van in with misfire. They told me at each stage what was needed, after testing injectors found they were all not very good. They showed me the reports and explained why they all needed to be replaced. My bill was high but this was down to the parts and not the labour. Would use again. Thank you for getting Van up and running Quickly. Thanks you.

Yesterday was the first time of taking my car to this garage and I was pleased with how fast they did the mot, within 3 hours it was done regardless of other cars being in on the same day as mine. Excellent service and they even helped me with my problem of putting new batteries in both of my key fobs as i was struggling to do them myself due to it being very tricky to remove the casing, I will definately be using them in the future.

Get in touch

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Opening Hours

Monday – Friday

09:00 – 17:30

Saturday

09:00 – 14:00

Sunday

Bookings Only

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