Fuel Pump or EGR?

[Dmaup]

Hey guys,

I need some help. I tried searching and found nothing of much help. Tonight when I went to move my car I started it and it was running fine. When I went to take off it started stalling and was unresponsive. When i floored it the engine didn't rev up it just stalled out and died. I tried starting it again and the same thing, but the third time i tried it started right up and ran fine. It has me really confused. I don't know if its the fuel pump or a malfunctioning EGR. I had a code about a month about of EGR flow excessive. When that happened I cleaned the EGR and the code went away. If you guys have any ideas or a direction you can point me I would be grateful. Thanks in advance

Dmaup

 

[unity]

Both!

Umm, ok, maybe I should read it first.....

Could be the fuel pump, need a pressure reading at rail though. EGR, probably not since they generally dont cause a stall condition unless compounded by other problems. My guess is IAC (idle air control valve thingy).

Year?

 

[Dmaup]

Both!

Umm, ok, maybe I should read it first.....

Could be the fuel pump, need a pressure reading at rail though. EGR, probably not since they generally dont cause a stall condition unless compounded by other problems. My guess is IAC (idle air control valve thingy).

Year?

It's a 97 with 105000 miles. What I'm trying to figure out is if it's safe to drive home about 100 miles because I don't have anywhere to work on it at school. My dad is going to do fuel pressure reading when i get home, can anyone tell me what it is supposed to be? Thanks in advance

Dmaup

 

[Aquabrit]

Just looked on alldatadiy for my 93' It says: Key on: 35 - 45 psi

Engine running: 28 - 33 psi

Not sure if same for your year but hope this helps!

 

[unity]

Thats about right with fuel pressure. By the way, on 97 the IAC is EASY to get to. Right on top the engine, right hear the throttle body. Its a silver cylinder held on by two bolts and a squeeze style wire harness. So if by chance it is it, just give it a whack with something and see if it then starts fine.....

It will look A LOT like the bugger in the upper left of this photo. Conveniently, also in the photo, is something that *may* be the problem too, the fuel pressure regulator.But thats a stretch since when the fail, you will get no start all the time.

 

[Dmaup]

Thanks for you help. I will give these things a try and if that doesn't work i will come back for some more ideas. Thanks again

Dmaup

 

[chicken]

sounds like a fuel prob, the iac wouldn't matter when the gas is depressed. id say either its the pump or the wiring for the pump, when it doesn't start, give it a SMALL shot of starting fluid (or anything flammable) if it runs for a sec that means you got no fuel. as for your egr excessive flow 99.9% of the time its the DPFE it looks at exhaust psi for a drop=egr open or closed and as exhaust runs into it it gets full of water and throws stupid codes, ford actually has a bulletin for these codes in most ford vehicles, and its around $100 (just a guess i forgot what mine costs)

 

[Jibit]

I vote for fuel pump but I also had a similar problem when my cats were clogged too.

 

[Dmaup]

If it is the fuel pump do I just put a stock one back in or do i follow the article in the tech pages? If I use a diffent one whats the price difference and what will I see for gains?

 

[95Marklll(Kingcobra)]

My car is 50/50 off the line if i dont luanch it if i floor it from idle it bogs out and doesent move like it usually does, sometimes on a roll it will hesitate it comes and goes though could it be the fuel pump giving out not enough psi as it should?