Standard Ignition Distributor Vacuum Advance P/N:VC-257
Keep spark timing matched to engine load with the Standard Ignition distributor vacuum advance, part number VC-304. This distributor vacuum advance control fits many vehicles, among them the 1981-1982 Ford Escort, 1983-1985 Ford EXP and 1981-1985 Mercury Lynx. See the Buyer's Guide tab for the full list and engine details.
A vacuum advance uses engine vacuum to advance ignition timing when the engine is under light load. It is designed to vary spark timing with driving conditions. If a worn or leaking unit is causing hesitation or sluggish response, this unit replaces it.
Signs this part may need replacing: hesitation or flat response off idle, reduced fuel economy, or a vacuum advance that no longer holds vacuum. Diagnose the cause before replacing parts, because other ignition or vacuum faults can produce similar symptoms.
Interchange: V470 · FV2058 · VC2057 · E1EE12370JC · E1FZ12370A · E2EE12370AA · E2EE12370DA · E2FZ12370A · E2FZ12370D
What does a distributor vacuum advance do?
Which vehicles does the Standard Ignition VC-304 fit?
It fits many vehicles, among them the 1981-1982 Ford Escort, 1983-1985 Ford EXP and 1981-1985 Mercury Lynx. See the Buyer's Guide tab for the full list and engine details.
What are signs a vacuum advance may need replacing?
Possible signs include hesitation off idle, reduced fuel economy, or a unit that won't hold vacuum. Diagnose first, since other ignition or vacuum faults can cause similar symptoms.
Is the VC-304 tested for leaks?
Yes. Standard Ignition tests these units at 30HG maximum vacuum to confirm they do not leak.
What part numbers does the VC-304 cross-reference?
It cross-references V470, FV2058, VC2057, E1EE12370JC, E1FZ12370A, E2EE12370AA, E2EE12370DA, E2FZ12370A and E2FZ12370D.
This part cross-references / interchanges with the following part numbers:
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.