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.
Intermittent Failures
When an intermittent failure occurs, MIL comes on and a Diagnostic Trouble Code (DTC) sets. Powertrain Control Module (PCM) stores DTC as sporadic. Intermittent (sporadic) failures will be erased by PCM if failure does not occur again within 40 engine starts on Cabriolet, or after 50 engine starts with engine reaching operating temperature on 1.8L and 2.8L (except Cabriolet). Intermittent failures may be caused by problems with a sensor, connector or wiring. See INTERMITTENTS in TESTS W/O CODES article.
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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.