Description

2004 Toyota Matrix XR, FWD, StandardSECTION Description
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.

This vehicle uses a saddle type tank, a reservoir on both sides of the rear drive shaft. The fuel pump is in the module on the driver side of the vehicle and the fuel pressure regulator is in the module on the passenger side of vehicle. The fuel outlet is on the passenger side and supplies fuel to the engine. The fitting on the fuel pump module (Driver side) is a vapor line fitting that connects to the passenger side module. Both modules have fuel level sending cards. There are 2 hoses that connect the modules together, one is the fuel supply line the other is a return or siphon hose. The lines are removed from the fuel pump module when servicing either unit. The ORVR (Onboard Refueling Vapor Recovery) control valve is in the passenger side module.

Fig 1: Fuel System Modules
GC0000390Courtesy of DAIMLERCHRYSLER CORP.
1 - Passenger Side Module
2 - Driver Side Module
Fig 2: Driver Side Module
GC0000391Courtesy of DAIMLERCHRYSLER CORP.
1 - Electrical Connection
2 - Vapor Fittings
3 - Level Sensor
4 - Fuel Pump
Fig 3: Passenger Side Module
GC0000388Courtesy of DAIMLERCHRYSLER CORP.
1 - Vapor Fittings
2 - Siphon Hose
3 - Fuel Supply Line
4 - Pressure Regulator
Fig 4: Passenger Side Module Top View
GC0000389Courtesy of DAIMLERCHRYSLER CORP.
1 - Control Valve
2 - Fuel Supply Fitting
3 - Fuel Pressure Regulator
4 - Level Sensor
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.