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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

strange starting problem

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Old Jan 19, 2003 | 10:01 PM
  #1  
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szak
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Unhappy strange starting problem

I have a 95 F-150 inline 6 with EFI. The problem I have seems to be getting worse, but it has taken a long time (over a year) to get to the stage it is at. When I go to start it, in about 30%-40% of the cases, the engine will brefily fire(about 1 second), then die. After that I have to step on the accelator and pump to get it started which takes about a total of 15 seconds using several cranks. If I wait after the first inital start to try again, then it seems to have less of a problem getting going. The cap, rotor, plugs and wires are new and OEM. I was thinking the Idler Air Control Valve, but There are several things it could be and I do not want to just replace and see what works.

Any help would be Great!!
 
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Old Jan 20, 2003 | 07:37 AM
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83Steve
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strange starting problem

Pull the codes:
http://www.broncodata.com/tech/codes.htm
 
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Old Jan 20, 2003 | 02:15 PM
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jellybellyjean
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strange starting problem

our truck did the same thing about exactly (1992 Ford F-150) it turned out to be the upper intake gasket was bad. Fixed it and truck runs great. Good luck! Jean
 
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Old Jan 20, 2003 | 03:18 PM
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strange starting problem

I pulled the codes...nothing for the KOEO test(111), and the memory codes were incedental. The KOER test only gave me a 225 which is... Knock Sensor not detected during Dynamic Response Test KOER. That could have been because I did not "goose" it enough during the "goose" test.
 
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Old Jan 20, 2003 | 05:12 PM
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83Steve
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From: Memphis, TN
strange starting problem

No, that would have set code 167. The next thing I'd do is get a Haynes and a multimeter and test each sensor individually, starting with the IAC & TPS.
 
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