FUEL PUMP PERFORMANCE - CARBURETED

Application

Pressure psi (kg/cm² )

Min. Vol. in 30 sec. Pts. (L)

Amigo & Pickup 2.3L

3.56 (.25)

⁽¹⁾

⁽¹⁾	Information not available from manufacturer.

FUEL PUMP PERFORMANCE - FUEL INJECTED

Application

Unregulated Pressure psi (kg/cm² )

Regulated Pressure psi (kg/cm² )

Amigo, Pickup & Trooper 2.6L

⁽¹⁾ 42 (3.0)

⁽²⁾ 35 (2.5)

Impulse

⁽³⁾ 35-38 (2.5-2.7)

25-30 (1.8-2.1)

Trooper 2.8L

N/A

⁽³⁾ 9-13 (.62-.91)

⁽¹⁾

There are two unregulated pressure tests. The first is with fuel pressure regulator and pressure regulator Vacuum Switching Valve (VSV) vacuum hoses disconnected. The second is with pressure regulator vacuum hose connected, Blue wire of VSV is connected to positive battery terminal and Black wire connected to negative battery terminal. In both tests, pressure should be as specified.

⁽²⁾	With vacuum hose connected to pressure regulator and pressure regulator Vacuum Switching Valve (VSV) disconnected.

⁽³⁾	With engine running and vacuum hose disconnected from pressure regulator.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Fuel Pump

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?