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 MANUALSCHRYSLER1987CONQUEST 2.6 H, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISHIGH ALTITUDE COMPENSATION SYSTEMTESTINGHAC SYSTEMFEDERAL
1987 Chrysler Conquest 2.6 H, Standard
HAC System: Federal
1987 Chrysler Conquest 2.6 H, StandardSECTION Federal
- Engine coolant temperature should be 185-205°F (85-95°C). Remove air filter. Disconnect both Black vacuum hoses and Red-striped vacuum hose from carburetor primary and secondary emulsion well bleed and jet air nipples. Plug nipples at carburetor. Connect a vacuum pump to vacuum hoses one at a time, and check while running engine at idle. On low altitude models, 3900 ft. (1200 m) or less, system is okay if vacuum holds. On high altitude models, system is okay if vacuum leaks.
- Reconnect hoses to carburetor. Run engine at idle and check ignition timing. See IGNITION TIMING SPECIFICATIONS . On low altitude models, with engine at idle, disconnect Yellow-striped vacuum hose from HAC. There should be vacuum.
IGNITION TIMING SPECIFICATIONS
| Application | Low Altitude: ° BTDC | High Altitude: ° BTDC | |
|---|---|---|---|
| Colt | |||
| 1.5L | 3-7 | 10 | |
| 1.6L | 8-12 | 15 | |
| Conquest (2.6L) | 8-12 | 15 | |
| Ram-50 (2.0L) | 6-10 | 13 | |
| Ram-50 & Raider (2.6L) | 5-9 | 12 | |
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.