How to remove the Fuel Injector and Fuel Rail on Cadillac DeVille?

To remove the fuel rail and injectors, start by relieving the fuel system pressure and disconnecting the battery. Then, remove the intake manifold service cover and the air intake duct. On 1999 models, also remove the throttle body and gasket, as well as the throttle body spacer and spacer gasket. Disconnect the fuel supply and return lines from the fuel rail, and on 2005 and earlier models, disconnect the vacuum hose from the fuel pressure regulator. On 2000 and later models, disconnect the PCV fresh air tube. Remove the nut attaching the fuel rail end-point bracket retainer, and disconnect the electrical connectors from the fuel injectors. Remove the nuts securing the coolant pipes to the front fuel rail mounting studs, and then remove the fuel rail and injectors as a single assembly. To remove an injector from the fuel rail, flip up the U-clip retainer and pull out the injector. Finally, remove the old o-rings from the injectors. When installing the injectors, use new o-rings and, on 1999 models, a new gasket for the spacer. Tighten the spacer bolts to the specified torque. Installation is the reverse of removal, and be sure to check for fuel leaks after starting the engine.

Genuine Cadillac Deville Fuel Rail

Engine Fuel Rail

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Cadillac Deville Rail Kit,Multiport Fuel Injection Fuel
Part Number: 12499784
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Replaces: 17113345, 17113299
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-1999 Cadillac Deville | 4 DOOR, DEVILLE | 8 Cyl 4.6L
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Cadillac Deville Rail Kit,Multiport Fuel Injection Fuel
Part Number: 12499785
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Replaces: 17113516
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-1999 Cadillac Deville | SLS, STS | 8 Cyl 4.6L
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Cadillac Deville Rail Kit,Multiport Fuel Injection Fuel
Part Number: 12499782
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Replaces: 17113298, 17113218
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995-1996 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L
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Cadillac Deville Rail Assembly, Sequential Multiport Fuel Injection Fuel
Part Number: 12579067
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Cadillac Deville | DEVILLE, FUNERAL COACH, HIGH LUXURY, LIMOUSINE, SEVILLE, SLS, STS, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville Rail Kit,Sequential Multiport Fuel Injection Fuel
Part Number: 17113142
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L
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Cadillac Deville Rail Kit,Sequential Multiport Fuel Injection Fuel
Part Number: 17105956
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Replaces: 17086696, 17104084
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1995 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, TOURING 4 DOOR | 8 Cyl 4.5L, 8 Cyl 4.9L

Cadillac Deville Fuel Rail

The Cadillac Deville Fuel Rail travels pressurized gasoline from the pump to each injector in order for the engine to get the correct spray to provide smooth engine power and clean emissions. Mounted along the intake runners, the Fuel Rail maintains fuel at a constant pressure controlled by the regulator. This allows the electronic control module to vary the pulse width of the injectors for idle, cruising, or heavy load conditions without interruption. Early eighties models that moved from carburetors to throttle body injection had a small setup in which fuel flowed into a small plenum above the throttle blades. However, later Cadillac Deville engines had multiport injection, wherein every cylinder had its own injector that was fed by a separate Fuel Rail that increased vaporization and mileage. Recent versions even pair up with very high pressure common rail technology supporting gasoline direct injection that sends extremely fine droplets straight into the combustion chamber for stronger combustion and lower emissions. In all styles, the Fuel Rail assembly is constructed to withstand the pressure of the pump, and all Cadillac Deville models depend on a strong Fuel Rail to ensure that the injectors are supplied at any time.

Each OEM Cadillac Deville Fuel Rail we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Cadillac Deville Fuel Rail Parts Questions & Experts Answers

Rail Kit,Multiport Fuel Injection Fuel
12499784
Q: How to remove the Fuel Injector and Fuel Rail on Cadillac DeVille?
A:
To remove the fuel rail and injectors, start by relieving the fuel system pressure and disconnecting the battery. Then, remove the intake manifold service cover and the air intake duct. On 1999 models, also remove the Throttle Body and gasket, as well as the throttle body spacer and spacer gasket. Disconnect the fuel supply and return lines from the fuel rail, and on 2005 and earlier models, disconnect the vacuum hose from the fuel pressure regulator. On 2000 and later models, disconnect the PCV fresh air tube. Remove the nut attaching the fuel rail end-point bracket retainer, and disconnect the electrical connectors from the fuel injectors. Remove the nuts securing the coolant pipes to the front fuel rail mounting studs, and then remove the fuel rail and injectors as a single assembly. To remove an injector from the fuel rail, flip up the U-clip retainer and pull out the injector. Finally, remove the old o-rings from the injectors. When installing the injectors, use new o-rings and, on 1999 models, a new gasket for the spacer. Tighten the spacer bolts to the specified torque. Installation is the reverse of removal, and be sure to check for fuel leaks after starting the engine.