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.
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HOMESERVICE MANUALSPLYMOUTH1989COLT DL, 1.5 X, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISSYSTEM/COMPONENT TESTS - PFIEMISSION SYSTEMS & SUB-SYSTEMSEXHAUST GAS RECIRCULATION (EGR) SYSTEMEGR VALVE
1989 Plymouth Colt DL, 1.5 X, Standard
EGR Valve
1989 Plymouth Colt DL, 1.5 X, StandardSECTION EGR Valve
- Remove EGR valve and check it for sticking, deposits of carbon and damage. Clean with solvent if necessary.
- Connect a hand vacuum pump to EGR valve. Apply maximum amount of vacuum to keep EGR valve closed. See EGR VALVE SPECIFICATIONS table. Ensure air does not flow thru EGR ports of valve.
- Apply specified EGR valve opening vacuum. See EGR VALVE SPECIFICATIONS table. Ensure air flows thru EGR ports of valve. Replace valve if necessary.
EGR VALVE SPECIFICATIONS
| Application | Closed In. Hg | Open In. Hg |
|---|---|---|
| Colt & Colt Wagon | 1.8 | 7.7 |
| Colt Vista | 2.1 | 6.8 |
| Raider | 2.8 | 11 |
RENDER: 1.0x
NO RELATED
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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.