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.
1990 Suzuki Swift GTFACTORY OEM SERVICE PROCEDURE
Fuel System Pressure Release
WARNING:
ALWAYS relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT
allow fuel to contact engine or electrical components.
FUEL PUMP RELAY LOCATION
| Model | Location |
|---|---|
| Swift | In Engine Fuse/Relay Box, Behind battery |
- Place transmission in Neutral or Park and set parking brake. Remove fuse/relay box cover located in engine compartment, behind battery. Remove coolant reservoir from bracket.
- Disengage harness connector from fuel pump relay from underneath fuse/relay box. See FUEL PUMP RELAY LOCATION table. See Figure and Figure . Loosen fuel tank filler cap to release tank vapor pressure. Start engine and let idle until engine dies. Crank engine 2-3 more times to ensure fuel pressure is dissipated from system. Turn ignition off and remove key. Fuel system may now be opened safely. When loosening fuel line, hose or fitting, cover it with shop towel to absorb leaking fuel. When repair is completed, reconnect relay.
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.
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