need to know, 1986 F150 atart and run problem

[Bo Frodo]

History: Truck has been sitting for around 10 yrs. I took on the project.

The patient: 1986 F150 short bed, 302 EFI auto trans, base model. VIN 1FTCF15N4GKA06002

As you can see from the fuel tank pic, I have major clog problems. So far I replaced with new: fuel tank (mid-ship),roll over vent valve, sending unit with low pressure fuel pump, fuel filter on frame rail, high pressure fuel pump, injectors, and inj. connectors.

Results so far: Fuel at schrader valve squirts fuel, engine turns over and fires, but will not catch and run.

I really love this body style and power pkg. I am retired and just looking for a dependable drive. I am a novice never done anything more than change oil or tire. Hats off to YOUTUBE, but I am at a crossroads and don't know to try or do net.

Any helpful suggestions???

[old55pete]

- deleted -

[Bo Frodo]

- deleted -

Thanks for the advice, I replaced the rail located filter, but was unaware of a cannister filter after the high pressure pump.  I will check and replace and ck fuel pressure.

 

 

 

 

 

 

Sent from Mail for Windows 10

 

 

From: old55pete [via Bullnose Enthusiasts]

Sent: Sunday, March 1, 2020 3:04 PM

To: Bo Frodo

Subject: Re: need to know, 1986 F150 atart and run problem

 

 

 

You say that there is fuel in the fuel rail on the top of the engine. How much pressure? The 5.0 EFI requires 45 to 65 psi to operate. There is a fuel pressure regulator on the left injector rail by the inside rear corner of the air filter housing.

 

There are two fuel filters on these pickups. There is a cartridge type filter in the frame before the high pressure pump and uses a NAPA 3268 filter. Then there is the canister filter after that pump.

 

If the tank looked that bad, I am gonna guess that the filters are plugged, fuel lines might be plugged and the diphram in the regulator is bad.

 

The first thing you might want to do is get a fuel pressure guage with the adapters that screw onto that Schrader valve, turn on the key and see how much pressure you do have there. It would help a great deal knowing the pressure that you have.  

 

Steve

62 F100,351 C, C6 auto

86 Bronco, XLT, 5.0 EFI,AOD, IFS, 3.08 gears

90 brick nose F Super duty ( F450 ), 7.3 IDI, Banks turbo, ZF 5 speed trans. home made air to air after cooler.

07 F150 Quad cab, 5.4, 4x4

 

 

 

 

 

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52459.html

 

 

To unsubscribe from need to know, 1986 F150 atart and run problem,click here.

NAML

 

 

 

 

 

[old55pete]

- deleted -

[Bo Frodo]

- deleted -

No cannister, from HP pump straight to fuel rail it is all Gas line.

 

 

On March 3, 2020, at 5:20 AM, "old55pete [via Bullnose Enthusiasts]" <redacted_email_address> wrote:

 

The canister filter in also in the frame about 6 inches past the high pressure fuel pump. It is about 3 inches long and 2 1/2 inches round. It is held to the frame with a radiator hose clamp.Steve

62 F100,351 C, C6 auto

86 Bronco, XLT, 5.0 EFI,AOD, IFS, 3.08 gears

90 brick nose F Super duty ( F450 ), 7.3 IDI, Banks turbo, ZF 5 speed trans. home made air to air after cooler.

07 F150 Quad cab, 5.4, 4x4

 

 

---

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52583.html

To unsubscribe from need to know, 1986 F150 atart and run problem, click here.

NAML

 

 

[Bo Frodo]

There is a cartridge (3268) between UP pump and mid-ship tank. That is all I have found.

 

 

On March 3, 2020, at 8:36 AM, "Bo Frodo [via Bullnose Enthusiasts]" <redacted_email_address> wrote:

 

No cannister, from HP pump straight to fuel rail it is all Gas line.

 

 

On March 3, 2020, at 5:20 AM, "old55pete [via Bullnose Enthusiasts]" <ml+[hidden email]> wrote:

 

The canister filter in also in the frame about 6 inches past the high pressure fuel pump. It is about 3 inches long and 2 1/2 inches round. It is held to the frame with a radiator hose clamp.Steve

62 F100,351 C, C6 auto

86 Bronco, XLT, 5.0 EFI,AOD, IFS, 3.08 gears

90 brick nose F Super duty ( F450 ), 7.3 IDI, Banks turbo, ZF 5 speed trans. home made air to air after cooler.

07 F150 Quad cab, 5.4, 4x4

 

 

---

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52583.html

To unsubscribe from need to know, 1986 F150 atart and run problem, click here.

NAML

 

Patient: '86 reg.cab, short bed, 302 V8, EFI, auto trans, sitting out for 10 yrs., not abused just neglected, fires with strtr fld but won't run (yet)

 

 

---

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52595.html

To unsubscribe from need to know, 1986 F150 atart and run problem, click here.

NAML

 

 

[old55pete]

- deleted -

[Bo Frodo]

- deleted -

I will be taking pressure readings Friday morning. Still not found canister. I'll let you know what pressure is.

 

 

On March 3, 2020, at 6:55 PM, "old55pete [via Bullnose Enthusiasts]" <redacted_email_address> wrote:

 

Here is the canister filter on my Bronco, Should be same spec as yours, 5.0, EFI, AODhttp://forum.garysgaragemahal.com/file/n52638/DSCN0606_%281%29_LI.jpg This is the NAPA filter Number SFI23097

 

And here is the other filterhttp://forum.garysgaragemahal.com/file/n52638/DSCN0608_%281%29.jpg

 

The high pressure pump should be about half way between them, the 3268.

 

If you have only one then my bad.

 

Did you get a fuel pressure reading?

Does this pickup have more then one tank?Steve

62 F100,351 C, C6 auto

86 Bronco, XLT, 5.0 EFI,AOD, IFS, 3.08 gears

90 brick nose F Super duty ( F450 ), 7.3 IDI, Banks turbo, ZF 5 speed trans. home made air to air after cooler.

07 F150 Quad cab, 5.4, 4x4

 

 

---

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52638.html

To unsubscribe from need to know, 1986 F150 atart and run problem, click here.

NAML

 

 

[Bo Frodo]

Pressure reading is 20 , I have ordered a new fuel pressure regulator. Oh, I have only the one fuel tank (mid-ship)

 

 

Sent from Mail for Windows 10

 

 

From: Bo Frodo [via Bullnose Enthusiasts]

Sent: Thursday, March 5, 2020 9:05 PM

To: Bo Frodo

Subject: Re: need to know, 1986 F150 atart and run problem

 

 

 

I will be taking pressure readings Friday morning. Still not found canister. I'll let you know what pressure is.

 

 

On March 3, 2020, at 6:55 PM, "old55pete [via Bullnose Enthusiasts]" <ml+[hidden email]> wrote:

 

Here is the canister filter on my Bronco, Should be same spec as yours, 5.0, EFI, AODhttp://forum.garysgaragemahal.com/file/n52638/DSCN0606_(1)_LI.jpg This is the NAPA filter Number SFI23097

 

And here is the other filterhttp://forum.garysgaragemahal.com/file/n52638/DSCN0608_(1).jpg

 

The high pressure pump should be about half way between them, the 3268.

 

If you have only one then my bad.

 

Did you get a fuel pressure reading?

Does this pickup have more then one tank?

 

Steve

62 F100,351 C, C6 auto

86 Bronco, XLT, 5.0 EFI,AOD, IFS, 3.08 gears

90 brick nose F Super duty ( F450 ), 7.3 IDI, Banks turbo, ZF 5 speed trans. home made air to air after cooler.

07 F150 Quad cab, 5.4, 4x4

 

 

 

 

 

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52638.html

 

 

To unsubscribe from need to know, 1986 F150 atart and run problem,click here.

NAML

 

 

 

Patient: '86 reg.cab, short bed, 302 V8, EFI, auto trans, sitting out for 10 yrs., not abused just neglected, fires with strtr fld but won't run (yet)

 

 

 

 

 

If you reply to this email, your message will be added to the discussion below:

http://forum.garysgaragemahal.com/need-to-know-1986-F150-atart-and-run-problem-tp52062p52747.html

 

 

To unsubscribe from need to know, 1986 F150 atart and run problem,click here.

NAML

 

 

 

 

 

[Gary Lewis]

That's about half what it should be. A new regulator is a good idea.