Question about 1990 Ford F350

2 Answers

The fuel is bleeding back to the tank. makeing it hard to start in the morning.

When my truck sits for a period of time it seems that the fuel is draining back to the tank. i have to crank on it for a while (25-50 seconds) before it will start. what is the likely culprit? i cant find any leaks (hoses, connectors, injectors, or the pump) everything is dry.

Posted by on

  • phil51 Dec 14, 2008

    Fuel drains back and will only start with ether. Where are check valves located. Are they in the input or output lines at fuel filter?

  • estergard Jan 13, 2009

    truck sits for 30min or more it will take a long time to crank over before starting.

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,450 Answers

Sounds like the check valve in the fuel pump is not closing causing fuel to drain back.

Posted on Sep 09, 2008

If fuel injected you might check the fuel filter and pump pressure.

If carberueted you might check to see if the float and needle valve are sealing properly.

Posted on Sep 10, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Car is hard to start


If you get it started and shut it off will it fire right back up, but you let it set for a extended period of time it has to crank for a while?. Sounds like you have bad fuel pump if so, it's allowing fuel to bleed all the way back into the tank, so when you first try to start it has to fill all those lines back up...

Jun 12, 2012 | 1999 Isuzu Rodeo

1 Answer

I have a 98 CHEV PU 305v8. Had changed the fuel pressure regulator about 10 mo ago for flooding problems which fixed it. After about 2 months it became very difficult to start after the truck sits for


This problem is caused by a failed fuel pump outlet pressure check valve, it is part of the pump and not sold as a separate part. The defective check valve lets the fuel pressure bleed off and drain back to the fuel tank, when you go to start it the line must be filled and the injectors purged of air, this takes time and causes hard starting. The fuel pump is inside the fuel tank, the fuel tank must be removed to replace the pump and sending unit assembly

Jan 31, 2012 | 1998 Chevrolet K1500

1 Answer

I have a 1998 GMC C6500 that i have started having to prime the fuel system every morning , and can't find where it might be bleeding down at.


Your problem is that you are losing fuel pressure when the vehicle sits for a period of time. You will need to replace your fuel pump that is in your fuel tank.The fuel pump assembly has a one way check valve in it and when that check ball starts to where or jams the fuel leaks back in to the fuel tank. Therefor if you prime the fuel system the truck will then start it is a common problem with these chevy in tank pumps and many people have tried to fight GM for a recall but they won't budge so your only alternative is to replace the fuel pump on your own exspence.

Hope this helps you.

Apr 29, 2011 | GMC C3500 Cars & Trucks

1 Answer

I have a 95 s10 and its been sitting alot here lately i drove it the other day and it was hard to start and when it did start it didnt wont to run it is missing and stumbling real bad made it up the road...


If the vehicle has been sitting for a while, you should start by draining the fuel tank, and changing the engine oil. Gasoline does go bad if it is just sitting for a period of time, and will cause the issue you describe. Most likely, your issue is simply bad gasoline.

Aug 24, 2010 | 1995 Chevrolet S-10 CA Edition

1 Answer

1994 grand cherokee gives me a hard time starting in the morning no feul in rail ill crank and crank then ill hear the pump turn on and shell start up no drive problems it drive fine only when i try to...


Fuel pump is bleeding back so it isn't holding pressure in the lines. So when it sits long enough it is hard to start. Try turning the key on and then off wait 15 secs or so and turn key on and then off again do this one more time and see if starts. If so then you will need to replace the fuel pump in the tank soon.

Nov 05, 2009 | 1994 Jeep Grand Cherokee

2 Answers

When I get ready to start the car wont start right up , it takes like 3 tries. but when it start up it will start right back up when i get out the car for a few minutes,but if it rest for a while it wont...


losing fuel pressure when engine is off and until the fuel system gets back up to pressure it is hard to start. faulty/leaky injector of fuel pump allowing pressure to bleed back into tank. also f/p regulator can cause problem too.

Nov 04, 2009 | 2002 Lincoln LS

2 Answers

Doesn't always start , has problems in the morning, after it sits for awhile. somestimes it starts alright sometimes it doesn't,acts like it may be out of gas, cranks over and acts like it wants to start,...


May have a fuel pump going bad or a fuel filter clogged. When the fuel pumps go bad they tend to not hold fuel in the line and it leaks back to the tank. That could be causing your hard start sometimes and not others.

Oct 10, 2009 | 1997 Pontiac Sunfire

2 Answers

Hard but eventual start


Sounds like you may have a leaky injector which is both leaking fuel into one of the cylinders, and bleeding down any fuel rail pressure. Extra fuel makes it hard to start, loss of rail pressure takes a few seconds for fuel pump to build pressure back up.

Jan 24, 2009 | 2001 Dodge Dakota

1 Answer

Changed thermostat. now have air in fuel , how do u bleed fuel sy


the air bleeds itself out .sounds like fuel pressure regulator or fuel pump .thats what keeps the fuel from draining back to the tank when sitting

Jan 04, 2009 | 2000 Isuzu Rodeo

Not finding what you are looking for?
1990 Ford F350 Logo

Related Topics:

270 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

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

Answer questions

Manuals & User Guides

Loading...