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fiero died from meeting

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clynt View Drop Down
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Post Options Post Options   Quote clynt Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2011 at 4:09pm
i would think that pumps can get week ...i would check for pressure at filter .. and then pull tank if there is little ..
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Romeo View Drop Down
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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2011 at 4:11pm

It could if there were excessive resistance in it's power supply, but that'd be a "real treat" to check. Other reason you could have pathetic pressure include:

  • Leak in the fuel supply. (Would smell like gas)
  • Regulator stuck open.
  • Injector stuck open. (Would theoretically run this way however).

As you said, the pump not being "fed" proper power can also cause insufficient fuel supply.

 

And Clynt, I assume Chevy does the same as Ford (Because everyone wants to be like Ford), but with Fords, the moving parts of the pump (The part that actually pumps the fuel) have nothing in between the metal. They rely upon there being a sufficient quantity of gas (In Ford's case, 1/4 tank) to be present to keep things lubricated, not unlike what the oil in your engine would do.

Never shift into reverse without a back-up plan.
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Dr.Fiero View Drop Down
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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2011 at 4:43pm
Actually, it's not that hard to check what the pump is pulling.  I even have a gadget for that (no surprise?!).  I can even see if one segment of the motor is out by watching the current pulls on my scope.

And the fuel acts as a lube AND a coolant on these (the fuel is drawn directly across the internal parts of the motor!). Running out of fuel is the best way to kill them. Running low doesn't really matter since it's internally cooled by the fuel.

That aside.....

I think it was already asked, but...  do you hear the pump turn on for a little over a second when the key is first turned on?  You can force the pump on by yanking the cover off your fuel pump relay, and pushing the relays lever down (or just pull the relay and jumper the power to FP pins).  That also eliminates the relay itself as a suspect (ask John John if the relays ever fail!  He croaked on the side of the road a couple of times from it).


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Post Options Post Options   Quote tk_85redgt Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2011 at 5:41pm
Dr.fiero if u have time on the weekend cold u come over with your gadget and we can give a try so i'm not checking everything?i'm in surrey 108 and 148th.
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Dr.Fiero View Drop Down
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Post Options Post Options   Quote Dr.Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2011 at 6:16pm
Originally posted by tk_85redgt tk_85redgt wrote:

if u have time on the weekend


*snort* *snort* Hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha
hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha
hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha
hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha
hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha
hahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha hahahahahahahahahahahahahahahahahahahahahahahahahahahaha ...


*urp*

Sorry, what were you saying?

Oh...  right...  ummmmm...   we'll see how things go.

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beken View Drop Down
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Post Options Post Options   Quote beken Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2011 at 11:01am
Originally posted by Romeo Romeo wrote:

I don't mean to imply anything Ken, but do you regularly keep the tank near empty? Those pump require the gasoline for lubrication. If the tank falls below 1/4 tank, they lose that lubrication.


No...I never run my tank to empty. I always fill to full and run to 1/4 then look for a gas station. Usually it is at or below 1/4 when I fill my tank.

I had a friend with a Corvette who NEVER let his tank get below 1/2 and his fuel pump still went.



Beken (aka Ken) - bekentech@westcoastfieros.com   Original and still the owner of an 85SE 2M6 4spd
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tk_85redgt View Drop Down
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Post Options Post Options   Quote tk_85redgt Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2011 at 5:13pm

It's a live.replace the fuel filter.IT'S A LIVE

   THANKS EVERY 1 FOR THERE HELP.

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Indy View Drop Down
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Post Options Post Options   Quote Indy Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2011 at 6:38pm

Not that it matters anymore with this problem, but there is another possible reason for a poor fuel supply.

My 84 Duke would start, run for a couple of seconds then die, so I checked the fuel pressure. At 4 psi it was well below the spec of 11 psi. The problem was not the fuel filter.

After dropping the fuel tank and I noted that the short rubber sleeve immediately on the discharge of the fuel pump (inside the tank) was quite spongey, so I replaced it, and installed hose clamps. It would have eventually failed, but it failed at that moment because the hose had softened sufficiently that it lost its grip on both the fuel pump and the metal pipe. I installed hose clamps because somebody on Pennock's suggested doing that.

Now 11 psi.

Gary  

 

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Post Options Post Options   Quote Dawg Quote  Post ReplyReply Direct Link To This Post Posted: 15 April 2011 at 7:17pm
Hee hawww!

Good work!

The Dawg
You dream it up....I'll make it
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Post Options Post Options   Quote clynt Quote  Post ReplyReply Direct Link To This Post Posted: 16 April 2011 at 7:06pm
do i get a prize?......
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