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.
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HOMESERVICE MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 84 (ENGINE CONTROLS - REMOVAL & INSTALLATION)AIR INDUCTION SYSTEMSINTAKE MANIFOLDREMOVAL
2001 Chevrolet Cavalier LS, 2.4 T
Intake Manifold: Removal
2001 Chevrolet Cavalier LS, 2.4 TSECTION Removal
WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
- Release fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL SYSTEMS. Disconnect the coil module connectors from the coil modules located in the camshaft covers. Disconnect the PCV dirty air tube from the camshaft cover.
- Disconnect the PCV fresh air tube from the camshaft cover. Disconnect the fuel regulator vacuum tube. Disconnect the vacuum tubes from the AIR solenoid. Disconnect the fuel inlet and return quick-connect fittings at the fuel rail. See FUEL LINE DISCONNECT FITTINGS .
- Disconnect the fuel rail bracket retaining nut at the rear lift bracket. Remove the 2 pushnuts securing the engine coolant heater wire and position aside (if equipped). Disconnect the 8 electrical connectors from the 8 fuel injectors. See Fig 1.
- Remove the 4 bolts attaching the fuel rail to the intake manifold. See Fig 2. Lift the entire fuel rail and injector assembly from the intake manifold. Loosen the plenum duct clamp at the rear of the intake manifold.
- Remove 10 bolts attaching the intake manifold to the cylinder heads. Remove the intake manifold by using an upward lifting motion at the front of the manifold assembly. See Fig 3. Clean and inspect the intake manifold.
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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.