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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

rough idle

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Old Jun 11, 2003 | 11:55 PM
  #1  
plumbkrazy's Avatar
plumbkrazy
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From: winnipeg, canada
Question rough idle

when my truck is cold mostly'' it starts good but runs
rough . then it s like someone turns a switch and it.
idles good . this not all the time.

prob. #2

also a banging noise when starting from a stop or shifting during
travelling poss . trans bolt up or front end..


91 f-150 4x4 ext. custom
rebuilt 302
alloys
cap seats
new 2 tone 03 greys
 
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Old Jun 12, 2003 | 09:42 AM
  #2  
mr.tiny3's Avatar
mr.tiny3
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Joined: Apr 2003
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From: near harrisburg
rough idle

Have you checked the U-joints on both front and back drive shafts?

How is your oil pressure? Have you checked Vaccum lines?
 
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Old Jun 12, 2003 | 10:34 AM
  #3  
steve83's Avatar
steve83
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Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
rough idle

1) Pull the codes.

2) I agree with mr.tiny3: check the u-joints.
 
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Old Jun 14, 2003 | 11:40 PM
  #4  
plumbkrazy's Avatar
plumbkrazy
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From: winnipeg, canada
rough idle

Originally posted by mr.tiny3
Have you checked the U-joints on both front and back drive shafts?

How is your oil pressure? Have you checked Vaccum lines?

yes its a new motor and oil pres, is 60 at a idle

and all u joints have been changed,

now the truck started to surge a a idle . almost stallsout,
 
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