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P0461 I did changed my fuel pump and fuel filter with fuel level sending unit but still can not start.

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6ya6ya

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Hi there,
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Posted on Jan 02, 2017

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Alex

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SOURCE: changed fuel pump and fuel filter, now x5 2002 won't start

1. use scanner to find out if there's trouble code.

2.. it's not clear if the starter (motor) turns as you try to start the engine, if not, check starter motor including intermittent (maybe) problem with the ignition switch.

3.if starter motor turns everytime you try to start: check the electrical ignition system: coils & spark plugs

Posted on Apr 30, 2010

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Where is my fuel censor located on 2002 blazer 4.3 eng. and why do it start sometimes and it dose u must live it running


I really need more info on your problem..If you are speaking of the fuel gauge level it is a complete unit fuel pump assembly with sending unit and float mounted together as one inside top of fuel tank...Keeping it running could be a few things...If it starts and runs good it shouldn't be related to fuel delivery...Do you have to jump start it..?...Change the fuel filter if you haven't for proper maintenance anyway....Please send more info...Also how many miles are on vehicle.?..

Feb 18, 2015 | 2002 Chevrolet TrailBlazer

1 Answer

93 chrysler t&c awd changed fuel pump and filter, van ran fine again for about 2 months now won't start and don't hear the fuel pump. changed the oil pressure sending unit and still won


fuel pick-up in tank is blocked it has a sock over the end as a gross filter to keep out any big junk from getting sucked into the pump and causing damage to it. the sock can get so plugged up that no fuel will flow, causing the pump to run for a short time then with no fuel flow to cool it it trips the safety and shuts off

Aug 12, 2012 | Cars & Trucks

1 Answer

Where is the fuel filter on a 1999 ford taurs


The fuel filter is located in the sending unit. This contains three primary components - the fuel pump, the fuel filter, and the fuel level sensor. The sending unit is located inside the fuel tank. This is done because the fuel around it helps cool the fuel pump, therefore extending its life. To remove the unit(You might need a lift), you need to:
1) Drain the fuel tank
2) Detach the fuel tank from the vehicle
3) Lower the tank
4) 'Unlock' the sending unit (it sort of locks in there, but there's no key or anything)
5) Remove the whole unit and replace the problem part.
6) Put the sending unit back.
7) Re-attach the tank.
8) Fill the tank.

Apr 23, 2012 | 1999 Ford Taurus

1 Answer

2001 jimmy fuel sending unit


if you take the time to drop the fuel tank you might as well replace the fuel pump module. this will come with a new fuel pump and level sending unit. DO NOT USE AN AIRTEX brand. they will leave you with more problems! Get an a/c delco or delphi pump. make sure to replace the fuel filter at the same time.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Feb 09, 2012 | 2001 GMC Jimmy

2 Answers

1998 chev 1500 hard starting when cold but starts fine after warming up changed plugs and sensors


The first thing i would tey is changeing the fuel filter. Chevy has a problem with the design from the fuel pump to the fuel inlet on the intake manifold. What they did it is back up the power supply to the fuel pump from the fuel relay and split the curicut and ran the back up through the oil pressure sending unit . So even if the relay went bad while driveing the fuel pump would still get power and the truck wouldn't die on the road its a saftey thing .But if the relay is bad then the engine needs to build up enough oil pressure to trip the oil sending unit to send power to the pump from cranking thus a long cranking time when cold . Change the fuel filter first it should be replaced every 4 to 5 years anyway . A nd if that dosn't fix it try the relay it should be behind a panal inside the glove box on your truck and if that dosn't work replace the oil pressure sending unit. One of these 3 things should work if the fuel pump is working correctly

Sep 17, 2011 | 1998 Chevrolet C1500

1 Answer

2005 Dodge Dakota V8 4.7L, 4X4, engine light on, code P0452 . Where is the fuel pressure sensor located?


  1. The Fuel Level Sending Unit, or Fuel Level Sensor, is located in your gas tank with the Fuel Pump Module. The fuel gauge sending unit (fuel level sensor) is attached to the side of the fuel pump module. The sending unit consists of a float, an arm, and a variable resistor track (card).
  2. The Fuel Pressure Regulator is located within fuel pump module. The fuel pressure regulator controls fuel system pressure. The PCM cannot detect a clogged fuel pump inlet filter, clogged in-line fuel filter, or a pinched fuel supply or return line. However, these could result in a rich or lean condition causing the PCM to store an oxygen sensor or fuel system diagnostic trouble code.
Both of these sensors are connected with the Fuel Pump Module. Here is a diagram:
pctech1_33.jpg

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Mar 10, 2011 | Dodge Dakota Cars & Trucks

1 Answer

Will not start, turns over but fails to start, seems as if it is not getting gas. Perhaps the fuel pump or sending unit is bad. gas guage does work now either.


can you hear the pump run?? if you can i would start by changing the fuel filter before i droped the tank... also did you check your relay for the fuel pump, under the hood?? the sending unit doesnt send the fuel to the engine, the sending unit is what operates your gauge... so, if your pump is junk and got to drop the tank, the sending unit is built in the pump, so kill 2 birds with one stone, and replace the fuel pump assembly, and everything will work.
hope this helps

Dec 06, 2010 | 1995 Jeep Grand Cherokee

2 Answers

Low oil pressure no start


CHECK ENGINE OIL LEVEL ON OIL DIP STICK.OIL LEVEL SHOULD BE ON FULL MARK IF NOT ADD OIL UNTIL YOU GET TO FULL MARK.IF OIL LEVEL OKAY.YOUR LOW OIL PROBLEM CAUSED BY WORN DAMAGED OIL PUMP OR WORN ENGINE CRANKSHAFT BEARINGS.IF OIL HAS NOT BEEN CHANGED A LONG TIME CHANGE OIL AND OIL FILTER NOT GUARANTEE TO FIX PROBLEM.BUT COULD BE MINOR THING.OIL FILTER COULD BE STOPPED UP.WEAKEN OIL FLOW BUT LIKE I SAID PROBLEM COULD BE OIL PUMP OR ENGINE BEARINGS.REMOVE OIL SENDING UNIT SCREW IN A OIL PRESSURE GAUGE.TURN ENGINE OVER SEVERAL REVOLUTIONS TO SEE IF OIL PRESSURE BUILD UP TO 40 LBS. SEE 40 - 60 PSI. 2000 RPM.IF NO OIL PUMP TO WEAK .IF OIL PRESSURE RISES WHEN TURN ENGINE OVER.I HAVE SEEN FAULTY OIL PRESSURE SENDING KEEP ENGINE FROM RUNNING BECAUSE OIL PRESSURE SENDING UNIT WILL DISABLE FUEL PUMP RELAY TO KEEP FROM DAMAGING THE ENGINE.

Sep 23, 2010 | 2003 Lincoln Navigator

1 Answer

My 2003 kia sedona is shaking and shuts down fuel guage broken


SOUND LIKE FUEL PUMP GOING BAD.YOUR FUEL LEVEL SENDING UNIT IS ALSO GOING BAD ITS PART OF THE FUEL PUMP ASSEMBLY.FIRST HAVE CAR SCANNED TO SEE WHAT TROUBLE CODES IS.REPLACE FUEL FILTER AND FUEL PUMP RELAY FIRST THEY ARE CHEAPER ROUTE THEY COULD BE THE PROBLEM.BUT FUEL PUMP COST BETWEEN $300.00 TO $700.00 THAT WHY CHECK FILTER AND RELAY AND HAVE IT SCAN BEFORE BUYING ANY HIGH PRICE PARTS.IF FUEL PUMP GOOD I BELIEVE YOU CAN BUY FUEL SENDING UNIT SEPERATE DONT HAVE TO BUY WHOLE PUMP ASSEMBLY BUT CHECK AROUND SOME AUTO PARTS PLACES WILL MAKE YOU BUY THE WHOLE FUEL PUMP ASSEMBLY JUST TO FIX THE FUEL LEVEL SENDING UNIT.

May 20, 2010 | 2003 Kia Sedona

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