At Amin Auto, we offer expert high-pressure fuel pump repair services in London, Ontario to restore proper fuel delivery, boost engine performance, and protect critical diesel engine components. If your diesel vehicle is experiencing power loss, misfiring, or starting difficulties, a failing high-pressure fuel pump could be the cause. Our experienced technicians are equipped with advanced diagnostics and the expertise needed to identify fuel pump issues and repair or replace them with precision.
The high-pressure fuel pump (HPFP) plays a key role in modern diesel and direct-injection gasoline engines by supplying pressurized fuel to the combustion chamber. When this system fails, it affects your vehicle’s power, fuel economy, and emissions. Prompt diagnosis and repair are essential to prevent engine damage and maintain peak performance.
If you’re already visiting us for diesel engine diagnostics, our team will assess the entire fuel system — including the HPFP — to ensure everything is functioning correctly.
What Is a High-Pressure Fuel Pump?
The high-pressure fuel pump is responsible for delivering fuel from the tank to the engine at extremely high pressures. In diesel engines, this pressure often exceeds 30,000 psi to achieve proper atomization for efficient combustion.
Unlike low-pressure pumps, the HPFP must withstand intense mechanical and thermal stress. Over time, wear and tear, contaminated fuel, or lack of lubrication can lead to failure.
Common Signs of High-Pressure Fuel Pump Failure
It’s important to recognize the early warning signs of a failing HPFP to avoid more extensive engine damage. If you notice any of the following, schedule an inspection immediately:
- Engine hesitation or stalling
- Hard starting, especially when warm
- Decreased power under load
- Poor fuel economy
- Check engine light related to fuel pressure
- Metallic ticking or grinding noise from the pump
A failed fuel pump can lead to poor injector performance or fuel system imbalance. We often pair high-pressure fuel pump repair with fuel injector cleaning and replacement to fully restore the system.
Our High-Pressure Fuel Pump Repair Services
At Amin Auto, we provide complete diagnosis and high-pressure fuel pump repair for diesel and direct-injection gasoline engines.
1. Fuel System Diagnostics
We begin with a comprehensive diagnostic scan and system pressure test. This includes:
- Checking fuel rail pressure under load
- Verifying signals from the fuel pressure regulator
- Inspecting for leaks or restrictions in the fuel lines
- Testing injector performance and fuel trim readings
2. Pump Inspection and Removal
Once the issue is confirmed, we safely access and remove the HPFP. Our inspection includes:
- Visual and mechanical assessment of the pump
- Checking for wear on seals and internal components
- Inspecting camshaft lobes or followers (if pump is cam-driven)
3. HPFP Repair or Replacement
If the pump is serviceable, we perform repairs using manufacturer-grade components. If replacement is necessary, we:
- Install an OEM or performance-grade HPFP
- Replace associated gaskets and sensors if needed
- Reprogram or reset ECU fuel trim values (if applicable)
- Road-test and verify system pressure and flow
In some cases, HPFP failure is linked to debris in the system. We’ll inspect and, if needed, clean or replace the fuel filter and tank lines to prevent repeat failures.
Why HPFP Failure Shouldn’t Be Ignored
Delaying high-pressure fuel pump repair can lead to:
- Injector damage due to uneven pressure delivery
- Contaminated fuel entering the combustion chamber
- Turbocharger strain from improper fueling
- Poor combustion and increased emissions
- Complete engine failure in extreme cases
We often coordinate this repair with turbocharger repair and replacement or glow plug testing and replacement to ensure full diesel system restoration.
Why Choose Amin Auto for High-Pressure Fuel Pump Repair?
- Diesel System Specialists – We understand the complexity of high-pressure fuel systems
- Advanced Tools – We use professional diagnostic equipment for accurate fuel pressure readings
- OEM-Grade Components – Only top-quality parts for long-lasting results
- Transparent Pricing – No hidden costs, just honest recommendations
- Complete Engine Support – From general mechanic and full-service auto repair to diagnostics and emissions
We’re committed to restoring your vehicle’s performance while protecting your engine from further damage.
Improve Fuel Efficiency and Power
A well-functioning high-pressure fuel pump ensures:
- Precise fuel injection timing
- More efficient combustion
- Lower emissions
- Smoother throttle response
- Better cold starts and performance under load
Once repairs are complete, consider finishing the visit with our painting booth and refinishing to restore your vehicle inside and out.
Book Your High-Pressure Fuel Pump Repair Today
If your vehicle is showing signs of power loss, fuel system trouble, or poor cold starts, schedule your high-pressure fuel pump repair with Amin Auto today. Our diesel specialists will diagnose, repair, and restore your system to factory-grade performance.
- Address: 120 Falcon St Unit 10, London, ON N5W 4Z1
- Phone: +1 226-998-0003
- Email: info@aminauto.ca
- Book Online: Schedule an Appointment
Amin Auto – London’s Trusted Source for High-Pressure Fuel Pump Repair.