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.
Heat Hazard Warning System: Description
The heat hazard warning system is designed to prevent possible damage to vehicle due to excessively high exhaust system temperatures. A warning lamp, on instrument panel, will light when ignition switch is turned on or when floor temperature is higher than 248°F (120°C). Floor temperature is detected by a floor mounted sensor. Through a system of switches and wiring, fresh secondary air from air pump, is rerouted from exhaust ports to the cooling jacket around the thermal reactor, reducing exhaust system temperatures. System consists of a heat hazard sensor, a warning light, and connecting wiring.
Use the Manual With the Right Hardware
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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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