Check Engine Light Comes On Fuel filter problems can also cause the Check Engine Light to come on. A dirty fuel filter may restrict the fuel system flow, or at least make it inconsistent, which can cause the vehicle to experience hard starting. This decrease in fuel is causing your engine to pause until more fuel is pumped into the fuel filter. This makes it very resistant to alcohol fuels, which is a good deal nowadays with the popularity of E85 as a performance fuel. Photo of fuel filter at 120k plus extensive diy with photos note i did not remove the fuel pump fuse in the glove box why i was curious if it was necessary and just how much gas would actually e out with fuel. Next, the fuel line and the electrical connector are removed. The Check Engine Light can be set off by a wide variety of issues, so having the computer is highly recommended.
After waiting for about an hour the car restarted and ran fine to enable me to drive the few miles home. You need 3 things to fire an engine; 1 sufficient, combustible fuel 2 oxygen 3 properly timed spark I know I have the oxygen and spark s … ince my engine runs with other fuel sources introduced starting fluid. If you let the tank run low, often there is silt in the bottom of the tank which accumulates from fuel over long periods of time and once the fuel runs low, it's concentrated around the fuel pickup at the bottom of the tank and all gets sucked up in one go. It will run for a few seconds and then shut down which is normal. Realizing our 140,000+ mile is most certainly not immune to this issue, and not knowing the history of the current fuel pump, we decided to replace the old pump before it left us stranded.
When engine speed is reduced, fuel flow may be restricted to the point of causing reduced engine power and performance. It turned over, fired for a second then nothing at all. Once I fitted a new fuse it was like nothing had happened. If this doesn't work, replace the fuel filter with a new filter. You can see the ring sitting off to the right in this picture. You may also hear the pump and it can still be pumping with so low a pressure as to be defective.
There could also be bad connection or damage cables on the electric fulepump under the rear seat. This occurs as particles clog the filter and deplete the fuel supply going to the engine. Damaged Fuel Pump If you notice , it may be caused by a restricted fuel filter. Photo of fuel filter at 120k plus extensive diy with photos so connect these first put the 2 hose cls around each hose before reattaching also the curved fuel line went to the center nipple of the fuel filter. A clogged fuel filter can decrease the amount of fuel being sent into your fuel injector, thus causing your engine to lose power. Would be expensive in a V8 E39 though. I have an E39 540i, 1998, 147,000k.
A fresh fuel filter addresses many fuel related problems including surging, stalling, cold start issues, and poor performance under a variety of conditions. Bmw e39 fuel filter 1332 1740 985 oemno1332 1740 985 application bmw e39 fuel filter 1332 1740 985. I would go along the lines of what has previously been suggested by replacing the fuel filter etc. Most fuel filters are relatively inexpensive and easy to change. Don't smoke or use a plugged in light to look at it - go flashlight. It tends to be more notable when accelerating. He also writes and edits for Etched Press Society, a micro-publishing company based in Wilmington, N.
These models I am told can be identified by having a steel gas tank. My '02 was built in August of '02 and so it has the '03 setup 2 port. Bmw e39 5series fuel filter replacement 19972003 525i 528i working at the outer edge of the lower panel use a door panel removal tool to. The pump is either working or it's not. This is fixed by disconnecting the fuel filter from the gas line and cleaning any obstructions.
Standing in front of the car with the hood open it is on the right side of the engine compartment right in the front, it should sit like a foot away from your right leg. You can use a screwdriver and a mallet to carefully unscrew it. However, I have also been told it might be the fuel filter. I had let the fuel get very low a few days before - about 25 miles showing on range of onboard computer - and mostly driving in London traffic at 14. Car is Hard to Start One of the first symptoms commonly associated with a bad or failing fuel filter is. To access the fuel pump hanger you have to cut out and remove the sound deadening under the seat to get at it.
First just replace the fuel filter as it is a maintenance item that should be replaced regularly. Pumps that have been installed cannot be returned for a refund. Fuel filteroe 13 32 1 709 535 for bmw5 e39 5 touring 7 x5 fuel filteroe 13 32 1 709 535 for bmw5 e39 5 touring 7 x5 alpinab10 estate e39. Fuel filter with pressure regulator for bmw e38 740i e39 520i 525i fuel filter with pressure regulator for bmw e38 740i e39 520i 525i 530i 540i 735i 740i. A clogged fuel filter will burn a fuel pump up very quickly. The engine may also shake or stutter at different speeds, as the amount of fuel varies due to the dirty filter. Filters commonly clog from a deteriorating gas tank, bad fuel, or other debris in the fuel system.
Fuelrelay is also possible, try to change with the relay fore heated rear window they are in the same socket over the battery. Under heavy acceleration or at high engine speeds, fuel pressure may be sufficient to allow adequate fuel flow past a partially clogged filter, which results inadequate engine performance. There may be something obstructing the fuel-filter valves, which connect the fuel filter to the gas line. More likely it probably is the fuel filter. Usually, a faulty fuel filter will produce any of the following 4 symptoms that can alert the driver of an issue with the vehicle. The silver metal ring around the edges of the hanger locks it into the tank and screws in. The clogged fuel filter puts too much pressure on the fuel pump and prevents the proper amount of fuel in the fuel tank from reaching the engine.
Photo of fuel filter at 120k plus extensive diy with photos there is a bracket holding the fuel filter in place in hindsight i think it's best to leave this on until the last step this way you don't even need to. Sometimes the fuel filter can become clogged to the point where it negatively affects engine performance. Both not totally like your problem but have similar symptoms - just a thought! Who neeeds an answer like that!?! To start the installation, the bottom cushion of the rear seat is removed. If you do not hear the pump, either the pump is bad, the fuse is blown, or the fuel pump relay … is defective. The car may feel sluggish, or even go into limp mode and illuminate the Check Engine light. If power gets to the pump but no fuel is going through it's likely contaminated or old fuel clogging the pump internals. Since our car was still running we had a little time to think about our options.