Join Date: Jun 2019
Location: Lexington, Kentucky
Car Year: 2001
Car Model: Forester
Feedback Score: 0 reviews
How do I troubleshoot fuel pump system?
We just purchased this Forester; it was missing on all 4 cylinders, but we drove it 70 miles to home. I ordered the plugs, wires, and coil for it, and my wife drove it around town and to work for a week until the parts arrived. Due to the bolts being rusted under the hood (like on the air intake assembly), it was a chore to change the plugs, but we did. After changing all the electrical, we tested it, and the car ran much better.
However, the next day when we went to drive it, the engine would not start. From watching various YouTube videos, I am 90% sure the fuel pump is not working. (I do not hear it when I stand by the gas tank and my wife turns the key.) Unfortunately, I can not find a video for troubleshooting that on a like year /model Subaru, so the tips do not help much. I do not have an owners' manual.
Here are some of my issues: I do not see a Schroeder valve on the fuel rack to attach a gauge or check compression. I can not find a fuse labeled for the fuel pump. I do not see a relay that would control the fuel pump. I found a video for changing a fuel pump in an '03 Forester, but it requires a lot of work, and I do not know whether my '01 is in the same place, nor if the actual fuel pump is bad. I find the coincidence of the fuel pump failing right after I changed the coil and plugs too high, so I feel it is probably just a fuse, but I can't locate where it is.
Any help at all would be great.