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I recently purchased a 2001 Chevrolet Blazer. When pumping fuel into the fill spout the gasoline backs up the fill spout causing the pump to kick off. The only way to successfully pump fuel into the vehicle in a timely fashion is to only pull the pump lever in jussst enough tk turn the pump on, approx 1 gallon every 2 minutes :-/. I would imagine some sort of filter must be plugged, but i am un sure wether this filter would be located in the fuel tank/sending unit, or if there may possibly be a sort of inline filter somewhere between the fuel door and fuel tank? Does anyone have experience with these vehicles, or this issue? Where should i begin looking?

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In many vehicles 2000 and up, auto makers started putting a strainer type filter between the fuel door and fuel tank to help catch large particles before hitting the fuel, which could mess up the pump, sending unit, and clog your fuel filter quickly. It was also added, in my opinion, to help prevent siphoning. So I would try to look and see if that filter is plugged or clogged. Another thing it may be is sometimes at fuel pumps, the pumps themselves pump the fuel too quickly, making the fuel back up on itself.

Posted on Oct 28, 2012

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Posted on Jan 02, 2017

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SOURCE: gas gauge reads empty but tank acts like it's full

I also have a 04 with a 1.8L. same problem. I took the fuel regulator off. It is a black box behind the rear tire under car. It only has 2 bolts to take off. After that there is a couple of vent hoses from the tank going to this box. Unplug them and 1 electrical connection. The electrical connection and one vent is connected to a T connection on the box that you can unplug by twisting on the T. Take that T off and look inside where you unplugged the hose on this T. There is a spring and a little plunger inside this tube. The plunger gets stuck. I took a little screw driver and some PB blaster and worked that plunger back and forth a couple dozen times and it unfroze. Put it back together gassed up just fine. I did not look but I was told regulator can be replaced for 200$. But a can of blaster is cheaper.

Posted on Jun 10, 2009

  • 1 Answer

SOURCE: 1994 S10 Blazer Fuel Issues?

YOU SHOULD INSTALL ORIGINAL GM PART AND NOT AFTER MARKET. I INSTALLED 2 AFTER MARKET PUMPS THEY WORKED FOR A WHILE THEN STOPPED. THE PROBLEM WAS NOT ENOUGH PRESSURE, SINCE I INSTALLED GM PART NO PROBLEM.......

Posted on Jun 27, 2009

  • 580 Answers

SOURCE: 2001 hyundai sonata 4 cl can't pump fuel into tank @ normal rate

The sending unit in your tank is going bad replace it.

Posted on Jul 10, 2009

  • 1 Answer

SOURCE: fuel pump for 2001 gmc 3500 box van

where is the fuel pump located on a 2002 350 chevy cargo van?


Posted on Aug 29, 2009

ZJLimited
  • 17970 Answers

SOURCE: 2001 ford e250 5.4 v8...vehicle

Are you try scanned the PCM to know if some fault codes are stored there? Are you check injectors? We recommend to de-pressurize your fuel system. Disconnect the power to your fuel pump, by either disconnecting it's power supply, or pulling the fuel pump fuse or relay. Once the fuel pump has no power, crank the engine for a few seconds. The engine might start, but should die a few seconds later. If it continues to idle, then you didn't disconnect your fuel pump.

Once the fuel system is de-pressurized, we can begin to remove various parts from the engine bay to help clear up room. On a typical system, there is a fuel feed, and fuel return. For these types of systems, you would need to disconnect both of the lines, and then disconnect the fuel pressure regulator. The fuel injectors are held in with clips that hold the harness to the injector. Remove these clips, and pop off the wiring harnesses. The fuel rail is held in with a few bolts. Remove these bolts, and then the fuel rail should be loose. Pull the fuel rail out of the intake manifold or cylinder head, and you can now easily remove the fuel injectors.

Couldn't start his but had 40 psi fuel pressure, but even though it turned over. Are you check crankshaft, this is located crank sensor under the a/c compressor, to the left of the balancer. The camshaft sensor is in the timing cover usually behing the PS (Power Steering) fluid tank. FInally, try jumping or bypassing the fuel pump relay to test if have pressure, if this work, then go to the next device, fuel filter, then next at fuel pressure regulator and this way so on.

Keep us updated.

Posted on Feb 09, 2011

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