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Old 02-18-2011, 12:18 AM
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Join Date: Feb 2011
Posts: 1
Default 1997 f250 no start or intermitant stalling

hello, i need some help. ive got a 1997 f250HD old body style with a 460. sometimes it starts and runs fine, sometimes it will die and wont restart for a while, sometimes it wont start at all. when it dont start, its got no spark, ive replaced the ign switch, ign coil, has any one had this problem? thanks waller
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Old 02-18-2011, 05:59 AM
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Join Date: Jun 2010
Posts: 5,332
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I have to think back as to whether your vehicle has a distributor. If it does there is a shutter wheel and what in effect adds up to a pick up coil that triggers the ign module to produce the spark signal for the coil. Do you have voltage available at the coil ign terminal when you lose spark? The other terminal of the coil should have a blinking voltage when attempting to start. If not , in the first part you should have voltage available to the coil whenever the ign is in the on position. The varying signal to the other side of the coil creates the spark and comes from the ign module and the dist signal. Let us know where you stand with this.
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Old 09-27-2011, 09:08 AM
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Join Date: Sep 2011
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Default Ford F-250 Problem

Quote:
Originally Posted by waller View Post
hello, i need some help. ive got a 1997 f250HD old body style with a 460. sometimes it starts and runs fine, sometimes it will die and wont restart for a while, sometimes it wont start at all. when it dont start, its got no spark, ive replaced the ign switch, ign coil, has any one had this problem? thanks waller
I'm having the identical problem with my 1997 Ford F-250. Did you find the answer? I would appreciate knowing. Thanks, hodges
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  #4  
Old 09-28-2011, 11:06 PM
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Join Date: Feb 2011
Location: South Boston
Posts: 15
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It could be a relay. I had an old Exploder and it would have a similar issue. When I had someone tap on the relays as I tried to start it, boom, it would light right up. I eventually just got a new relay... good luck 2009 volkswagen cc vr6 4-motion review

Last edited by Douglas_48; 01-04-2012 at 09:36 AM.
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Old 10-01-2011, 08:35 AM
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Join Date: May 2011
Location: Colorado, near Denver
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There are many causes for this. I could think of anything from a fuel pump to wiring. One area that no one ever thinks to look at is the old Check Engine light (or SES or whatever ford's acronym for the day is). It should come on at key on, eng. off, before cranking. It should go out when the engine cranks (then either stay out or on, depending on faluires logged in the PCM). If it stays on while cranking, it means the PCM doesn't see the crank turning, which technically means it isn't seeing PIP (profile ignition pickup; or, for the less engineering involved crowed, crank. position sensor).
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Old 10-01-2011, 08:35 AM
 
 
 
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01, 1997, 96, f250, ford, intermittent, jump, problems, spark, stall, stalling, start, starting, starts, thunderbird

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