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.
1990 Eagle Premier ESFACTORY OEM SERVICE PROCEDURE
EGR Vacuum Transducer Test
- Disconnect and plug output (EGR) side of transducer. EGR transducer is located on side of intake manifold. See Fig 1 .
- Disconnect and remove EGR vacuum transducer from vehicle. Apply 1-2 lbs. of regulated air pressure to EGR vacuum transducer backpressure port. See Fig 2 . Apply at least 12 in. Hg of vacuum to input port. Replace EGR vacuum transducer if it will not hold vacuum.
Factory Service Tools
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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