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Old 01-28-2008, 06:52 PM
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Question Need help with 7.3

I have a early 1999 F350 7.3 that will only run for about 30 seconds at a time and then just dies. Sometimes it will start up right away, other times I have to crank it a little bit longer. Either way it always starts back up but then dies after 20 or 30 seconds. I have had no problems up to this point and have 189,000 miles on the motor. I replaced the fuel pump thinking that was the problem with no success. I would rather have some direction instead of changing parts all day long. Any information would be greatly appreciated.
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Old 01-28-2008, 06:57 PM
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cam position sensor??
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Old 01-28-2008, 07:21 PM
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Thanks, I'll try that next.
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Old 01-28-2008, 07:24 PM
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When cranking does your tach move?
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Old 01-28-2008, 07:31 PM
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Yes, and while it is runing everything appears to be fine. I can hold the throttle at any range and it will run fine up to the point of 20 or 30 sec and then it dies again. If I do that it is much harder to get started again though.
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Old 01-28-2008, 07:35 PM
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Hmmmm.....that's odd. Well the CPS is relatively cheap if that's not it no biggie. They usually act this way when there on their way out.
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Old 01-29-2008, 07:29 PM
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Thanks for the help. I changed the CPS today and that seems to have fixed all.
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Old 01-30-2008, 09:25 AM
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Quote:
Originally Posted by hardway3005 View Post
Thanks for the help. I changed the CPS today and that seems to have fixed all.
where did you get it and how much did you spend?? i replaced mine mid December 2007. my local Fraud dealer had one for $30.
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Old 01-30-2008, 09:42 AM
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and dont forget the recall on the cps
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Old 01-30-2008, 08:43 PM
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I bought it at a local parts store (NAPA) for $30.00 and thought that was pretty cheap.
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