What is the purpose of the fuel pressure regulator in Ford Bronco EFI models?

EFI models maintain constant fuel pressure from the fuel pressure regulator by causing resistance beyond the injectors, thus allowing some of it to go back to the tank. It can vary its restriction through engine vacuum, a diaphragm, and a spring as engine requirements change. Additionally, when the fuel pump is not running, the restrictor closes very fast and acts like a check valve thereby aiding quick engine restarts. For proper functioning, fuel flow should be unblocked, an open return path must exist along with a dependable vacuum signal. Failure can result in overpressure or underpressure which are caused by contamination or valve malfunctions.

Genuine Ford Bronco Fuel Pressure Regulator

Fuel Tank Pressure Regulator

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6 Fuel Pressure Regulators found

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Ford Bronco Regulator - Fuel Pressure
Part Number: E7FZ-9C968-A
- Other Name: Fuel Pressure Regulator; Pressure Regulator
- Replaced by: F4CZ-9C968-A
More Info
Fits the following Vehicles:
1985-1989 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4MT, 5MT
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Ford Bronco Regulator - Fuel Pressure
Part Number: F4CZ-9C968-A
- Other Name: Fuel Pressure Regulator
- Replaces: E7FZ-9C968-A, F3LY-9C968-E, E8DZ-9C968-A
More Info
Fits the following Vehicles:
1985-1993 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4AT E4OD, 4MT, 5MT
Less Info
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Ford Bronco Regulator - Fuel Pressure
Part Number: F4SZ-9C968-A
- Other Name: Fuel Pressure Regulator
- Replaced by: PU7Z-9C968-C
$77.98 MSRP: $124.36
You Save: $46.38 (38%)
More Info
Fits the following Vehicles:
1996 Ford Bronco | 8 Cyl 5.8L | 4AT E4OD, 5MT
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Ford Bronco Regulator - Fuel Pressure
Part Number: E8DZ-9C968-A
- Other Name: Fuel Pressure Regulator
- Replaced by: F4CZ-9C968-A
More Info
Fits the following Vehicles:
1985-1989 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4MT, 5MT
Less Info
View related parts
Ford Bronco Regulator - Fuel Pressure
Part Number: E7TZ-9C968-E
- Other Name: REGULATOR - FUEL PRE
- Replaced by: F4TZ-9C968-A
More Info
Fits the following Vehicles:
1985-1989 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4MT, 5MT
Less Info
View related parts
Ford Bronco Regulator Assembly
Part Number: E6TZ-9C968-B
- Other Name: Regulator Assy
More Info
Fits the following Vehicles:
1985-1989 Ford Bronco | 6 Cyl 4.9L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT C6, 4AT AOD, 4MT, 5MT
Less Info

Ford Bronco Fuel Pressure Regulator Parts Questions & Answers

Regulator - Fuel Pressure
E7FZ-9C968-A
Q: What is the purpose of the fuel pressure regulator in Ford Bronco EFI models?
A: EFI models maintain constant fuel pressure from the fuel pressure regulator by causing resistance beyond the injectors, thus allowing some of it to go back to the tank. It can vary its restriction through engine vacuum, a diaphragm, and a spring as engine requirements change. Additionally, when the Fuel Pump is not running, the restrictor closes very fast and acts like a check valve thereby aiding quick engine restarts. For proper functioning, fuel flow should be unblocked, an open return path must exist along with a dependable vacuum signal. Failure can result in overpressure or underpressure which are caused by contamination or valve malfunctions.