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 MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMTHERMAL VACUUM VALVE
1987 Chevrolet Chevette L4-98 1.6L
Thermal Vacuum Valve
1987 Chevrolet Chevette L4-98 1.6LSECTION Thermal Vacuum Valve
Description and Operation- Choke Vacuum Break Distributor Thermal Vacuum Switch
- Dist. Spark/Canister Purge Thermal Vacuum Switch (DS-CP-TVS)
- Dist. Thermal Vacuum Switch (EGR-EFE-EMR-DTVS)
- Distributor Spark Thermal Vacuum Switch (DS-TVS)
- Distributor Spark Thermal Vacuum Valve (DS-TVV)
- Distributor Thermal Vacuum Switch (EGR-EMR-DTVS)
- Early Fuel Evap/Dist. Thermal Vacuum Switch (EFE-DTVS)
- TAC/Distributor Thermal Vacuum Switch (TAC-DTVS)
Testing and Inspection
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.