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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA1990TERCEL BASE, 2D COUPE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTS - 4-CYL CARBURETEDTESTINGVACUUM SWITCH CHECKTERCEL
1990 Toyota Tercel Base, 2D Coupe, Standard
Vacuum Switch Check: Tercel
1990 Toyota Tercel Base, 2D Coupe, StandardSECTION Tercel
- Disconnect vacuum switch electrical connector and vacuum hose. See Figure & 22. Using an ohmmeter, connect ohmmeter leads between vacuum switch terminals. Continuity should not be present.
- Apply 2.76 in. Hg of vacuum or less to vacuum switch No. 1. Ohmmeter should indicate continuity. On California models, 2 vacuum switches are used. Repeat testing procedure on vacuum switch No. 2, except on M/T models, apply 17.13 in. Hg or more and on A/T models, apply 14.37 in. Hg or more. If vacuum switch does not function as described, replace switch.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.