For these reasons, I think that a dirty filter, by increasing the pressure at the pump, by creating a condition where the pump strains at lower revs, will make it run harder and hotter and shorten its life. Do a half turn on the three screws and pop the cover off. You might need a plair of battery pliers to get the fuel hoses to move before removing them. The fuel filter is the black can with rubber fuel lines connecting to it. You will see a domed cover held on by 4 screws.
If I can simplify my argument : it seems evident that a pump working against higher pressure will be prone to wear faster than one working against lower pressure. I've underlined and numbered three passages in your post. However, if you're laying under the car, look to the right toward the front of the engine. Look for a yellow loop handle. Obviously, when filter is tottaly cloged, the pressure regulator may not be able to compensate for the lost pressure and the pressure at the injectors will drop. If your car is equipped with the optional filter it is under the dash on the passenger's side.
It comes with instructions on how to replace it if you look under the car from the front bumper 05-07 models you will see a plastic cover protecting the car's engine from Debris. As you start to get crud accumulating in the filter the pressure required to push the gas through the filter increases. The problem with this is that in order to service the fuel filter the electronic fuel pump and sending unit must now be removed from the gas tank. Make sure both front seats are moved all the way forward. After 105k miles, it was pretty clogged and a simple filter change restored the cars performance. It might be easier for you if you remove the rear seats 5 bolts total and get to it that way.
Either way, please post back with numbers. Jack If this is an answer to my post s , read again. Over time this will build and slowly start making the pump work harder to maintain the pressure through the filter. If it hasn't been off in a while, it may take a little coaxing. Lift the bench straight up to a 90 degree angle.
Start by reaching between the seat bench and the seat back for the black nylon pull loop. It seems once the weather warms or you start driving the smell goes away. We usually suggest it should be done around 90k but thee is no reason not to do it sooner if you like the idea of preventative maintenance. With clean filters, pressure regulator relieves the exccessive pressure and bypasses a significant flow back to the tank. Dont lose the rubber ring under the pump.
Replaced mine with your recommended ones at 150K and now at 180K all is well. Fram's group of original equipment equivalent fuel filters is mainly developed to deliver perfect fit and function. If the fuel filter is in line you will stumble across it at some point. As for the real world effect on the pump's longevity, I'm afraid that will remain a matter for speculation. Either way, please post back with numbers.
These filters are fairly inexpensive, so check out our page for great deals and coupons on a new one tip: buy several, when you go to check the filter on your Impreza, you can easily swap it for a new one if it is dirty. Just this week one of my co-workers was complaining that her car was sluggish and she brought it into the shop. If all else fails follow the fuel lines from the tank to the intake manifold. The car is a 2001 Subaru Outback, 2. You should change the filter on your Impreza at least once a year or every 20,000 miles, whichever comes first. Undo those and pull the cap off. Just wanted to say thanks for the advice on head gaskets.
Hold the quick connector and press down on the locking tabs at the end of the connector; then pull the line to disengage the connector. I'm no fuel pump expert, but I have some doubts about each of these statements. Grab the handle look and you will see it and slide it forward. If the get dirty enough, you're working your system harder or running it inefficiently. If the fuel filter is in line you will stumble across it at some point. For the same reason a moderately dirty filter will increase the pressure at the pump while maintaining a constant pressure at the injectors if the regulator is good. Remove the gas hoses with pliers, be careful if you break a plastic… The transmission oil filter is remotely located on the 2004 model.
Took to dealer, injector in cylinder 2 diagnosed as bad. Do you wait until your air or oil filters are affecting performance to change them? We are regressing into nonsense. In order to gain access to it, you must remove a cover plate which is behind the pa … ssenger side rear seat. So I always replace mine with a Subaru filter. There's a plastic cover protecting the undercarriage. The Subie fuel filter is tiny compared to many european cars and should be changed on a regular interval.