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 MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (ENGINE CONTROLS - SPECIFICATIONS)FUEL SYSTEMFUEL PRESSURE REGULATOR
1984 Plymouth Horizon Base, 1.6 A
Fuel Pressure Regulator
1984 Plymouth Horizon Base, 1.6 ASECTION Fuel Pressure Regulator
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 1994 Plymouth Sundance, 1994 Plymouth Laser, 1994 Plymouth Acclaim, 1994 Eagle Vision, and 1994 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.
FUEL PRESSURE REGULATOR PERFORMANCE
| Application | (1) Pressure psi (kg/cm2 ) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1.8L & 2.0L Non-Turbo | |||||||||
| Vacuum Hose Connected | (2) 38 (2.7) | ||||||||
| Vacuum Hose Disconnected | (2) 47-50 (3.3-3.5) | ||||||||
| 2.0L Turbo | |||||||||
| Manual Transmission | |||||||||
| Vacuum Hose Connected | 27 (1.9) | ||||||||
| Vacuum Hose Disconnected | 36-38 (2.5-2.7) | ||||||||
| Automatic Transmission | |||||||||
| Vacuum Hose Connected | 33 (2.3) | ||||||||
| Vacuum Hose Disconnected | 41-46 (2.9-3.2) | ||||||||
| 2.2L & 2.5L TBI | 39 (2.7) | ||||||||
| 2.5L Flexible Fuel | |||||||||
| Vacuum Hose Connected | (3) | ||||||||
| Vacuum Hose Disconnected | 55 (3.9) | ||||||||
| 3.0L | |||||||||
| Vacuum Hose Connected | (3) | ||||||||
| Vacuum Hose Disconnected | 48 (3.4) | ||||||||
| 3.3L | |||||||||
| Vacuum Hose Connected | 46 (3.2) | ||||||||
| Vacuum Hose Disconnected | 55 (3.9) | ||||||||
| 3.5L | |||||||||
| Vacuum Hose Connected | 39 (2.7) | ||||||||
| Vacuum Hose Disconnected | 48 (3.4) | ||||||||
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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.