How many fuel pumps does a C7 have?
The Chevrolet Corvette C7, spanning model years 2014 through 2019, uses two fuel pumps in its standard configuration: an in-tank low-pressure pump and an engine-bay high-pressure pump. This two-pump setup supports its direct-injection fuel system.
In the following report, we detail how this two-pump arrangement works, why it is used in the C7, and what it means for maintenance and reliability across the generation.
Two-pump design powers the C7's direct injection
The Corvette’s fuel system relies on a sequential pump arrangement to deliver the right pressure at all times for its direct-injection engine. The overview below explains the roles of each pump and how they interact.
- Low-Pressure In-Tank Pump (LPFP): Located within the fuel tank, this pump feeds the high-pressure pump with a steady supply of fuel at a modest pressure essential to maintain continuous operation.
- High-Pressure Engine-Mounted Pump (HPFP): Mounted in or near the engine bay, this pump pressurizes fuel to the high rail pressure required by the direct-injection system, delivering fuel to the injectors as commanded by the engine control module.
Together, these two pumps ensure that the C7’s direct-injection system maintains consistent fuel supply and pressure across a range of driving conditions.
Summary
In short, the C7 Corvette has two fuel pumps in its standard configuration: an in-tank low-pressure pump and an engine-mounted high-pressure pump. This setup is typical for modern direct-injection V8 variants within the C7 family and supports both performance and reliability. If you’re diagnosing fuel-pressure issues, understanding the two-pump layout is the key starting point.
Which year C7 to avoid?
The C7 Corvette years to avoid are 2014-2015, as they had issues with the infotainment system, electrical glitches, and the 8-speed automatic transmission. Specifically, the 2015 model is often cited for problems with the automatic transmission's shifting and premature interior wear. Later model years (2016-2019) are generally considered more reliable, though certain high-performance variants like the Z06 may still have specific issues like overheating after hard use.
This video discusses common issues with C7 Corvettes, including overheating and transmission problems: 58sAutoMotivateYouTube · Mar 20, 2022
2014-2015
- Infotainment System: Many owners reported issues with the MyLink system, such as it glitching or turning off.
- 8-Speed Automatic Transmission: The 2015 model had the first version of the 8-speed automatic (8L90), which could have harsh shifting between first and second gear and other issues.
- Electrical Glitches: Some owners experienced various electrical problems.
- Interior Wear: Premature wear was noted, especially on the 2015 model.
- No Front Parking Cameras: These models did not have front parking cameras as standard, which can be a drawback for the low-slung car.
2016-2019
- These years are generally considered more reliable.
- Improved Automatic Transmission: Many early transmission issues were resolved in later years.
- Available Front Parking Cameras: Front parking cameras became available with the 2LT and 3LT option packages.
- Z06 Overheating: Some supercharged Z06 models, regardless of year, can overheat during track use or aggressive driving.
- Electric Power Steering: Models from 2016 to 2018 could experience a failure of the electric power steering rack.
How much does it cost to replace a fuel pump on a C7 Corvette?
The average cost for a Chevrolet Corvette Fuel Pump Replacement is between $1,720 and $2,038. Labor costs are estimated between $532 and $781 while parts are priced between $1,188 and $1,257. This range does not include taxes and fees, and does not factor in your unique location.
Where is the second fuel pump located?
All vehicles with fuel injection have a primary fuel pump that's typically located in the fuel tank. Modern vehicles with gasoline direct injection (GDI) also have a second pump, which is a high-pressure pump. This second fuel pump is near the fuel rail in the engine compartment.
How many fuel pumps does a C7 Corvette have?
Your C7 has two fuel tank sections, along with one main pump and an auxiliary pump. The main pump is located on the left side, while the secondary pump is situated in the right tank, which transfers fuel from the right section of the tank to the left section.
