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.
Avenger & Sebring Coupe (4-Cylinder)
1999 Chrysler LHSSECTION Avenger & Sebring Coupe (4-Cylinder)
- Release fuel pressure. See 4-CYLINDER FUEL PRESSURE RELEASE . Remove protective cover from service valve on fuel rail. Connect Fuel Pressure Gauge (C-4789) on fuel rail service valve.
- Turn ignition on. Using scan tool, select FUEL SYSTEM TEST to actuate fuel pump. Ensure fuel does not leak from fuel rail service valve. Observe fuel pressure. Fuel pressure should be 47-50 psi (330-350 kPa).CAUTION: When using scan tool to actuate fuel pump, fuel pump relay will remain energized for 7 minutes or until ignition is turned off.
- If fuel pressure is less than specified, check for clogged fuel filter, faulty fuel pressure regulator or faulty fuel pump. If fuel pressure is more than specified, check for faulty fuel pressure regulator or clogged fuel return line.
- Using scan tool, repeat FUEL SYSTEM TEST with ignition on. Turn ignition off, and observe fuel pressure. Fuel pressure should hold for 2 minutes. If fuel pressure drops gradually, check for leaky injector or faulty fuel pressure regulator.
- If fuel pressure drops sharply immediately after engine is stopped, fuel pump check valve is stuck open. Replace fuel pump.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.