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.
Exhaust Gas RECIRCULATION
2004 Acura 3.5RLSECTION Exhaust Gas RECIRCULATION
NOTE:
For EGR testing on 3.2CL, 3.2TL and 3.5RL see diagnostic test procedures for DTCs P0401, P1491 or P1498 in following articles:
- For 3.2CL and 3.2TL, see DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - 3.2CL & 3.2TL article.
- For 3.5RL, see DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - 3.5RL article.
RENDER: 1.0x
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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.