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 MANUALSHYUNDAI1994EXCEL GL, STANDARDREPAIR AND DIAGNOSISBRAKESMECHANICAL - HYDRAULICDISC & DRUMTESTINGPROPORTIONING VALVE
1994 Hyundai Excel GL, Standard
Proportioning Valve
1994 Hyundai Excel GL, StandardSECTION Proportioning Valve
- Install 2 pressure gauges that will measure to at least 2000 psi (140.6 kg/cm2 ) to input and output sides of proportioning valve. See Fig 1 .
- Measure both input and output pressure with brakes applied. See Fig 2 . If measured pressures are NOT within specification, replace proportioning valve. See PROPORTIONING VALVE TEST SPECIFICATIONS table. DO NOT disassemble proportioning valve.
PROPORTIONING VALVE TEST SPECIFICATIONS
| Application | Input Pressure psi (kg/cm2 ) | Output Pressure psi (kg/cm2 ) |
|---|---|---|
| Excel | 569 (40) | 498 (35) |
| 1138 (80) | 640-740 (45-52) | |
| 1991 (140) | 868-981 (61-69) | |
RENDER: 1.0x
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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.