Flooding on a '86 V6

Tiny
LUKERMAN
  • MEMBER
  • 1986 FORD MUSTANG
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 55,900 MILES
I have a 1986 Mustang LX 3.8L V6 that gets choked out or flooded I have heard that it could be the EGR valve or TBI or air idler valve, I have also done my own looking and I have 3 catalytic converters 2 on the Y pipe and one a little further down and the pipe gets a little pinched underneath the transmission I was just wondering what you think or if you have any suggestions to gain a little extra more power and stop the choking or flooding
Friday, March 25th, 2011 AT 4:23 PM

10 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
How have you determined that this condition is flooding?
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Friday, March 25th, 2011 AT 4:43 PM
Tiny
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I don't know how to explain it, it's more like choking I guess, because if it's cold and I rev it a little it takes a little bit for the smoke to catch up after I stop and sometimes I will pull of to a stop light and the rpms will drop and and go back up multiple times and when I try to drive it's hesitant and and takes awhile for everything to catch back up
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Friday, March 25th, 2011 AT 4:51 PM
Tiny
WRENCHTECH
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It does sound like an over rich condition but it's going to require a little diagnosis to determine why. One quick thing to check is pull the vacuum line off the fuel pressure regulator and see if there is any fuel inside indicating a ruptured regulator diaphragm.
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Friday, March 25th, 2011 AT 4:54 PM
Tiny
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Do you have any suggestions to why there are 3 catalytic converters? And would it be wise to take them out?
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Friday, March 25th, 2011 AT 4:58 PM
Tiny
WRENCHTECH
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2 of them are pre-cats. That is common on Fords.
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Friday, March 25th, 2011 AT 4:59 PM
Tiny
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Would it be a bad thing to take them off then?
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Friday, March 25th, 2011 AT 5:07 PM
Tiny
WRENCHTECH
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Probably impossible to do and against Federal law too.
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Friday, March 25th, 2011 AT 5:10 PM
Tiny
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Ok thank you very much do you have any other suggestions?
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Friday, March 25th, 2011 AT 5:14 PM
Tiny
WRENCHTECH
  • MECHANIC
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Yes, pay an expert to find your problem for you. It will be cheaper in the long run.
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Friday, March 25th, 2011 AT 5:17 PM
Tiny
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Ok thank you very much have a good day
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Friday, March 25th, 2011 AT 5:18 PM

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