SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 68 (ENGINE CONTROLS - TROUBLE SHOOTING - NO CODES - 2.2L)PRELIMINARY INSPECTION
2001 Chevrolet Cavalier LS, 2.4 T

Preliminary Inspection

2001 Chevrolet Cavalier LS, 2.4 TSECTION Preliminary Inspection
WARNING: This page is about a different car, the 2003 Pontiac Sunfire, 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  • Verify on-vehicle diagnostics are working by performing DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS under SELF-DIAGNOSTIC SYSTEM in SELF-DIAGNOSTICS - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE - GASOLINE article.
  • Ensure PCM grounds are clean, tight, and properly located.
  • Check vacuum hoses for splits, kinks, leaks, restrictions and proper connections. Ensure vacuum hoses are correctly routed as shown on vehicle emission control information label.
  • Remove the air filter element and check for dirt and for restrictions.
  • Check for air leaks at all intake manifold sealing surfaces.
  • Check ignition wires for cracking, hardness, proper routing and carbon tracking.
  • Check wiring for proper connections and routing, pinches, burns, cuts or other damage.
  • Ensure PCM and MIL are functioning properly.
  • Ensure there are no DTCs stored, or only intermittent DTCs are present.
  • Ensure fuel control system is operating properly. Go to FUEL SYSTEMS (GASOLINE) in SYSTEM & COMPONENT TESTING - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
  • Perform fuel system pressure test. Go to FUEL PRESSURE TEST under FUEL SYSTEMS (GASOLINE) in BASIC DIAGNOSTIC PROCEDURES - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
  • Perform a careful visual inspection of all systems.

After all checks have been performed, verify customer complaint and locate correct symptom. Check items indicated under that symptom. Not all items listed under each symptom apply to all models and systems. These procedures will normally recommend testing of a specific system or component, such as EGR, ignition, TCC, etc. Go to SYSTEM & COMPONENT TESTING - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article for appropriate test procedures.

NOTE: If PCM displays data but engine fails to start, go to NO-START DIAGNOSIS in BASIC DIAGNOSTIC PROCEDURES - 2.2L ALERO, CAVALIER, GRAND AM & SUNFIRE article.
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.