Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1989 Hyundai Excel GL, 2D Hatchback, AutomaticFACTORY OEM SERVICE PROCEDURE
Fuel Pressure - CARBURETED
- Ensure engine is at operating temperature. Disconnect fuel hose from carburetor. Connect a fuel pressure gauge to fuel hose end. Disconnect fuel return hose from fuel pump. Plug fuel pump return opening.
- Start and run engine at 1250 RPM. Refer to FUEL PUMP SPECIFICATIONS table. Turn engine off. With fuel hose disconnected from carburetor, place hose end into a container. Leave fuel return opening in fuel pump plugged.
- Start and run engine at 1250 RPM. Measure volume of fuel pumped in one minute. Refer to FUEL PUMP SPECIFICATIONS table.
FUEL PUMP SPECIFICATIONS
| Application | Pressure psi (kg/cm2 ) | Volume in One Min. Pts. (L) |
|---|---|---|
| Excel | 2.8-3.6 (.19-.25) | 1.7 (.80) |
Factory Service Tools
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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.