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Would a bad battery cause you fuel pump not to work right on a 2012 polaris ranger side by side


Only if it is an electric fuel pump... does the pump have wires attached... its doubtful that it is electric... the fuel pump is probably a vacuum operated pump (uses the vacuum created by the engine running)..
Not that familiar with that particular model.. electrical fuel pumps on atv..etc.. are rare.. I have never seen one!!

Feb 22, 2017 | Polaris ATV

1 Answer

Would a bad battery cause the efi fuel pump not to work right on a 2012 polaris ranger 500


Only if it is an electric fuel pump... does the pump have wires attached... its doubtful that it is electric... the fuel pump is probably a vacuum operated pump (uses the vacuum created by the engine running).. Not that familiar with that particular model.. electrical fuel pumps on atv..etc.. are rare.. I have never seen one!!

Feb 22, 2017 | Polaris ATV

1 Answer

Toyota hilux Diesel 2.41988 LN65


the vacuum pipe to the alternator is connected to the vacuum pump on the alternator to get vacuum for the brake booster
the wires will be to put the low vacuum light on in the dash
as to the vacuum line to the pump , you may have a vacuum operated governor control for the fuel pump
best to ask an accredited diesel shop or check the workshop manual which will explain the operation on the pump

May 06, 2017 | Toyota Cars & Trucks

1 Answer

Im having running problem i've clean the carbs, check compression, checked spark, checked vacuum hose, and air/fuel srew and it still will not start any suggestion


Undo your carb bowl bleed screws to make sure you are getting fuel, then retighten. If you have fuel from the bowl, that just tells you that you have fuel in the bowls. If no fuel check two things, that your fuel cock is working. If it is a simple gravity device it is possible that your petcock is clogged. If vacuum operated check your vacuum lines for splits and cracks. If it is an electric pump, check for pump operation when first turning on the key. You should hear it priming, then stop. If it doesn\'t do this, check your fuel pump fuse, and replace with a known good one of the same rating. Failing this, it will most likely be a dud fuel pump.

May 29, 2014 | 1996 kawasaki VN 1500 Vulcan Classic

2 Answers

Fuel pressure 1998 jeep grand cherokee 4.0 L V6


You should have a test port on the Fuel Supply rail, use a tool from a local auto parts "Tool Loaner program" where you can borrow tools for free,w/a deposit of course,then follow the steps provided;

MPI Fuel System Pressure Test

The MPI fuel system used in vehicles equipped with a 4.OL engine employs a vacuum balanced pressure regulator. Fuel pressure should be approximately 55-69 kPa (8-10 psi) lower with the vacuum line attached to the regulator than with the vacuum line disconnected. System fuel should be 214 kPa (31 psi) with the vacuum line connected to the regulator and 269 kPa (39 psi) with the vacuum line disconnected. CAUTION: Some fuel may be discharged when connecting fuel gauge to fuel rail.
  1. Connect a 0-414 kPa (0-60 psi) fuel pressure gauge to test port pressure fitting on fuel rail (Fig. 7).
  2. Remove vacuum line from pressure regulator.
  3. Start the vehicle.
  4. Note gauge reading. With vacuum line disconnected, fuel pressure should be approximately 269 kPa (39 psi).
  5. Connect vacuum line to pressure regulator. Note gauge reading. Fuel pressure should be approximately 214 kPa (31 psi).
  6. If fuel pressure is not approximately 55-69 kPa (8-10 psi) higher with vacuum line removed from regulator, inspect pressure regulator vacuum line for leaks, kinks or blockage. CAUTION: Fuel pressure will rise to as much as 655 kPa (95 psi) when the fuel return tine is pinched shut, shut engine down immediately after pinching oft fuel return line.
  7. If fuel pressure is low, momentarily pinch shut the hose section of the fuel return line. If fuel pressure remains low, inspect the fuel supply line, fuel filter, and fuel rail inlet for blockage. If fuel pressure rises replace fuel pressure regulator.
  8. If fuel pressure is above specifications, inspect the fuel return line for kinks and blockage.

Capacity Test

  1. Remove the cap from the pressure test port in the fuel rail.
  2. Connect a 0-414 kPa (0-60 psi) fuel pressure gauge to the pressure fitting on the fuel rail (Fig. 7).
  3. Start the vehicle. Pressure should be approxi- mately 214 kPa (31 psi) with the vacuum hose connected to the pressure regulator and 269 kPa (39 psi) with the vacuum hose removed from the pressure regulator.
  4. If the pressure is not to specification, check the following before replacing the fuel pressure regulator:
  • 4a - Inspect the fuel supply and return lines/hoses for kinks or restricting bends
  • 4b - Check the fuel pump flow rate. A good fuel pump will deliver at least 1 liter of fuel per minute with the fuel return line pinched off. If the fuel pump does not pump adequately, then inspect the fuel system for a plugged fuel filter or fuel pump inlet filter (sock). Fuel pump flow rate can be done by connecting one end of an old A/C gauge hose to the fuel test port on the fuel rail and inserting the other end of the hose into a container of at least 1 liter capacity. Run the fuel pump by installing a jumper wire into diagnostic connector terminals D1-5 and D1-6. Be sure to pinch off the fuel return line or most of the fuel will be returned to the fuel tank.

May 19, 2014 | 1996 Jeep Grand Cherokee

2 Answers

Does my older lowes mtd riding mower have a fuel pump?


If it is a Briggs Twin it is part of the carb , if not it will be a vacuum pump somewhere close to the engine because it is driven by a vacuum hose hooked to the block . As the piston goes up and down the pulse of the vacuum moves a diaphragm in the pump to move the gas from the tank that is lower then the carb .
older-lowes-mtd-riding-mower-fuel-pump-qghkikk0std4f3kdchzm2mue-4-0.jpg
briggs and stratton fuel pump fix

May 03, 2014 | Mtd Garden

2 Answers

I need change the fuel pump


Hi, The fuel pump is in the tank. You will have to remove the tank to get at it. Good luck

Jun 21, 2011 | 1995 Ford Windstar

1 Answer

This is an Aprilia Mojito Custom, the 150cc version (I think this an '07, the last year). The carb was gunked up from the rotten fuel we are stuck with today and I cleaned it well and now there is...


Hi,,realy does sound like your fuel pump has had it,,did you have an inline filter,from the pump to the carb? anyway you could discard the pump and stick with good old gravity?

Mar 22, 2011 | 2004 Aprilia Mojito Custom 150

1 Answer

There is no vacuum at the fuel pump. i replaced


Have you checked the fuel lines in the gas tank? Sometimes if the pickup line gets cracked it will **** air and no gas. give this a try. Good luck let me know.

Jan 26, 2010 | Polaris New Genuine Polaris Snowmobile...

2 Answers

89 fzr 1000 fuel pump problem


It seems likely that your fuel pump is not operating, you should hear the fuel pump priming when you turn on the ignition, if not the fuel pump is at fault, this is not uncommon and a replacement is the answer.

Mar 05, 2009 | 1989 Yamaha FZR 1000

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