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Old 01-02-2012, 07:10 PM   #1
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Egr valve

So my 94 5.0 will now start but runs really poor. It idles at around 300-500 rpm now sounds like it is struggling to stay running. Will shut off after a few min. Does not respond at all when given any amount on the gas. Changed out my maf, wanted to know if this sounds like a bad egr valve? What are other signs of bad egr valve? I thought it was fuel pump but i hear it turn on then thought fuel pressure regulator but really dont think that is it. Please help me out if anyone has had this happen to them.
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Old 01-02-2012, 07:29 PM   #2
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Re: Egr valve

Quote:
Originally Posted by Matt5.0 View Post
So my 94 5.0 will now start but runs really poor. It idles at around 300-500 rpm now sounds like it is struggling to stay running. Will shut off after a few min. Does not respond at all when given any amount on the gas. Changed out my maf, wanted to know if this sounds like a bad egr valve? What are other signs of bad egr valve? I thought it was fuel pump but i hear it turn on then thought fuel pressure regulator but really dont think that is it. Please help me out if anyone has had this happen to them.
Sounds to me like you don't have enough fuel/pressure.
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Old 01-02-2012, 09:42 PM   #3
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So what is the stock fuel pressure on a 94 5.0 if i get an ajustable fuel pressure regulator?
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Old 01-02-2012, 10:04 PM   #4
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Quote:
Originally Posted by Matt5.0
So what is the stock fuel pressure on a 94 5.0 if i get an ajustable fuel pressure regulator?
Stock fuel pressure should be around 32 psi at idle

---------- Post added at 11:04 PM ---------- Previous post was at 10:57 PM ----------

I'm also aware that every car is not the same so u should try using a fuel peessure gauge when u get ur regulator

---------- Post added at 11:04 PM ---------- Previous post was at 11:04 PM ----------

*pressure
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Old 01-02-2012, 10:12 PM   #5
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Re: Egr valve

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So what is the stock fuel pressure on a 94 5.0 if i get an ajustable fuel pressure regulator?
I don't have the manual for a 95 anymore, but I think it is 38-40 psi at idle with the vacuum hose removed from the regulator.

Pick up a Chilton's or Haynes manual if you don't already have one.
They have lots of useful information.
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Old 01-02-2012, 10:15 PM   #6
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Quote:
Originally Posted by Trojan Horse

I don't have the manual for a 95 anymore, but I think it is 38-40 psi at idle with the vacuum hose removed from the regulator.

Pick up a Chilton's or Haynes manual if you don't already have one.
They have lots of useful information.
+1
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