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.
EGR System: Description
Exhaust gas recirculation systems reduce Oxides of Nitrogen (NOx) by recycling some exhaust gas back into the intake manifold to lower combustion chamber temperature.
The EGR system on Impulse Turbo models consists of an EGR valve and a vacuum switching valve. The EGR system on other models consists of an EGR valve, a backpressure transducer (which monitors exhaust system pressure), and a thermal vacuum valve which senses coolant temperature.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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