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EGR Problems 95 f-150

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Old 02-07-2002, 12:09 AM
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Location: white bear lake,mn, USA
Vehicle: 1995 ford f-150
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EGR Problems 95 f-150

My 95 5.0 f-150 pings terribly on light throttle. Because of this, I had to lower the timing way down. It runs like a dog with the timing way down, so I would like to correct this problem.
I hooked it up to a scanner and got an "insufficient EGR flow" code. 332 I think. What could be restrciting the EGR flow? It has a brand new EGR valve on it.
Thanks,
Scott

Last edited by fivept0; 02-07-2002 at 12:40 AM.
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  #2  
Old 02-07-2002, 10:03 PM
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lack of vacume. check the vac. line's. see if they are ok. start there. good luck
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Old 02-07-2002, 10:09 PM
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thanks alot,
I found a cracked (hard plastic) vacuum line that goes from the "tin can" to the intake. I think I'll just buy a section of rubber vacuum hose and replace all the hard plastic lines following the diagram.

scott
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Old 02-07-2002, 10:15 PM
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I forgot to ask...Could a plugged cat cause this code? My cat rattles all the time and I also have the 311 code. (Thermactor pump inoperative) so i'm assuming my cats are toast. I know that could be my power problem...

scott
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  #5  
Old 02-08-2002, 07:43 PM
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i am going through this now on my 90' . i have a plugged vacuum line from the evr to the egr . check the vacuum to the evr from it's source if you have it there then check the line from the evr to the egr for cracks or blockages .
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  #6  
Old 02-09-2002, 02:06 AM
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Location: Valencia, California
Vehicle: 1996 Ford F150
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same problem

thats same thing happened to me,I was freaking out untill I saw that little red vacum line melted in half....I just did what you said and patched it with rubber tube....works fine now.
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Old 02-09-2002, 08:46 PM
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Thanks for the replies. I replaced all the hoses, and found 2 broken lines. It seems to be working now, and the check engine light doesn't come on anymore.

Thanks again
scott
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Old 02-17-2002, 07:46 PM
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pluged exhaust should not cause a lack of egr flow. on 95 i think it still use's evp. so it just know's if egr open's or not. and how far it does. a plugged exhaust will cause lack of power. and if it get's to that point. it will cause alot of heat build up and start cracking your exhaust maniflod's. but you should notice the power lose if it is starting to plug up on you.
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