Question about 1999 Dodge Ram

1 Answer

What could be letting fuel leak back through fuel pump? and lose its fuel pressure?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 523 Answers

The fuel pump has a check valve in it; if this has failed it can bleed back. Also the pressure regulator may have failed; this too may allow the fuel pressure to drop off. Lastly if you find low pressure and the truck flooding the injectors may be worn and leaking.

I hope this may have asssited you,
Best regards,

Posted on Sep 13, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 97 grand cherokee larado and when I shut it off it won't start back up for a few mins..then it fires there a kill switch on it or something else wrong possibly

No kill switch. You may have a fuel pump pressure issue, it may being losing pressure after shut down due to a faulty fuel pump check valve. Do a fuel pressure leakdown test, start the engine with a fuel pressure test gage hooked to the test port on the fuel supply rail to the fuel injectors, looks like a tire valve. Start the engine and run it and check for leaks at the pressure port to the test gage, repair as needed, once you are sure the test gage is leak free shut the engine down, if the fuel pressure bleeds down very quickly then you need to replace the fuel pump.

Apr 12, 2017 | 1997 Jeep Grand Cherokee

2 Answers

I have a 1995 Chevy k1500 when I use les then half gas it is nice a smooth and idles smooth but when I go over half it loses power and when I let up the power comes back I have changed Cadillac converter...

Sounds like you are losing fuel pressure. At low rpms it will not show up. Could be a bad fuel pump. Since you have spent so much money I highly suggest replacing fuel pump. Also check for any fuel leaks. I truly believe their is a leak in vaccuum A thumbs up would be greatly appreciated if this answer is helpful 1995-chevy-k1500-when-use-les-half-ynnexffib1tqqlzbw4nudlh0-2-0.jpg

Dec 19, 2014 | 1995 Chevrolet K1500

2 Answers

2003 Town & Country hard to start. Once it's starts it will start every time . Wait a few minutes then it's hard to start. Must turn over three or four time to start.

It sounds like possibly a fuel pump issue. The pump may be losing its prime because of a sticking check valve in the pump. Instal a pressure gauge and watch the fuel pressure after shutting the car off. The pressure should not completely drop off it should only drop a few pounds. If it loses more than a few pounds of pressure quickly then it may need a fuel pump. This can also be caused by leaking fuel injectors so further diagnosis is needed to find the source of the leak

Oct 22, 2013 | 1997 Ford Aerostar Extended

1 Answer

Wont crank on frist try

It would help if you were a little more specific with the year, make, model. etc. but usually with the newer fuel injected cars, excessive cranking means that the check valve on the fuel pump at the fuel tank is leaking. When the car sits the pressurized fuel rail at the engine loses its pressure due to the check valve leaking and you must crank the engine several times to build the pressure back up.

Dec 18, 2010 | Buick Century Cars & Trucks

1 Answer

94 lt1 cranks a while before car starts. When car starts the car runs fine.

You may be losing fuel pressure. There is a fuel pressure regulator in the fuel line. It has a check valve in it. If the check valve is bleeding off then you have to get fuel pressure pumped back up. You can verify by turning the key on and letting it sit for about 5 seconds, turn off and then back on and repeat 3 times. This will pump fuel back up to the regulator and should start right away.

Sep 14, 2010 | 1994 Chevrolet Camaro

1 Answer

Have a long crank time ususally wont start but does sometimes. i have replaced lift pump. i think it is either the injectors or the pressure pump what do u think.

Hi,it sounds like you are losing prime.I would look for a leak between the lift pump and the fuel tank.You may or maynot see fuel at the leak,It might be sucking air alowing the fuel to drain back into the tank.Your high pressure pump should have caused a performance problem and set a code.Hope this helps.Thank You for using fixya... iluv2fish..........Ray.......

Jul 20, 2010 | 2004 Dodge Ram 2500

1 Answer

Stalling, fuel pressure loss

replace fuel pump assembly and all o rings on connections

Oct 19, 2009 | 1994 Oldsmobile Cutlass Ciera

3 Answers

I have a 87 mustang and it has a mr gasket electric fuel pump. It vapor locks all the time. i have to take fuel line off turn switch on let fuel pick back up then plug the fuel line back up and it will...

Actually vapor lock refers to a condition in the intake manifold on a carbureted engine. You don't have vapor lock. What you may have is a filter inside the tank, its nicknamed a sock. Its a fine mesh screen and may be plugging up. When you pull the fuel line the fuel flows back and unblocks a small section , until it starts too **** again and re plugs. You may also have fuel pump that starts to lose power when its gets hot. Lee

Oct 11, 2009 | 1987 Ford Mustang

2 Answers

2000 Bravada hesitates when starting frm a stopped position.

get your hands on a fuel pressure tester.. this will tell u if u are losing fuel pressure between starts... those 4.3 v6's have a big problem with the poppet valve (injector assembly) leaking. causing the engine to flood...and losing pressure to push threw the injector... causing the hard start...but the fuel pump module will also lose pressure as has a check valve to keep that from happening but from time to time they do leak allowing fuel to flow back into the tank...with this pressure tester, have a friend turn the key to on.. after you hear the fuel pump shut off immediately pinch off the two fuel lines going from the tank to engine you can find these right below the driver side door. you will find the fuel filter there which is the pressure hose the other hoseis the return... both rubber hoses that will not be harmed by the vise grips or tools be your choice the other metal line is a vapor line which is not important. after you do pinch the lines off check the fuel pressure if it still drops with no signs of slowing down then the poppet valve is defective...if it does not move then you know it is definitely the fuel pump module (fuel pump assembly)

Aug 22, 2009 | 2000 Oldsmobile Bravada

Not finding what you are looking for?
1999 Dodge Ram Logo

Related Topics:

71 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Dodge Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides