How to Remove the Fuel Injector on a Volvo S90?
2 Answers
First, directly remove the rear seat. After removing the seat, there is a white round cover on each side. Remove the 10 screws on the covers. Disconnect the fuel pipe connector and use a tool to unscrew the black plastic cover ring. Remove the fuel level sensor, loop a line around the fuel pump pipe, and pull out the fuel pump.
As a Volvo S90 owner who frequently works on the car, I've removed the fuel injectors several times. Safety is the top priority: disconnect the negative terminal of the battery to avoid short circuits or sparks that could cause a fire. For tools, a basic set of wrenches will do, such as 8mm and 10mm sockets. The engine must be cold when performing this task. Open the hood and first remove the intake manifold or related components—be careful not to drop any bolts. The fuel injectors are mounted on a bracket, usually connected with wiring harnesses and fuel lines. I use a small screwdriver to release the connectors, then unscrew the mounting bolts to remove the injectors. Handle everything gently to avoid damaging the seals. After removal, check if the injector nozzles are clean; clean or replace them if necessary. This job isn’t too difficult but requires patience, especially for first-timers, as fuel leaks are common—keep some oil-absorbent cloths handy to manage spills. Finally, before test-driving, check for any leaks to ensure safety.
