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1994.5 - 1997 7.3L Power Stroke Diesel  

Cam sensor?

Old Dec 29, 2009 | 02:11 PM
  #1  
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Cam sensor?

Please help pretty much at a loss. I have a 95 f-350 7.3 turbo. I have done some thread searching and think i might be close? Truck was running great down the expressway when i was exiting onto off ramp i pushed in the clutch and truck died instantly.
I checked the fuel bowl and no fuel, changed fuel pump now i am getting fuel into bowl with 55lbs pressure, when i crank over engine tach only jumps to around 100 and falls.
All fuses are good
Unpluged bowl heater
Hpop is full
Cleaned fuel regulator
Batteries full
Should the tach read more when cranking? ( crank sensor?) I did spray a little ethore one time and it did start then died again
Any help would be greatly appeciated. Great site
 
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Old Dec 29, 2009 | 02:42 PM
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I don'tthink it is your cam sensor......could it be if/when the fuel pump went out you "ran it dry"? If so I believe you need to keep cranking. Someone else will point you in to some directions.
 
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Old Dec 29, 2009 | 02:48 PM
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Bet the issue is either weak battery's or starter.
How old is the starter?
How old are the battery's?

WAG, starter going south on you.
 
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Old Dec 29, 2009 | 03:13 PM
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Both batteries are new. I have been trying to start by cranking it over for a couple of weeks now shouldnt it be bled out by now? Any other way to bleed the lines? Thanks for the responces. does the cam sencor have anyting to do with injectors firing? It turns over very strong
 
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Old Dec 29, 2009 | 03:51 PM
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Normally the when the CPS (Camshaft Position Sensor) goes you won't have ANY tach bounce. I am taking it that you don't have ANY smoke?
 
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Old Dec 29, 2009 | 04:11 PM
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OK, you are saying you never had a problem until you came off the ramp?
At that point you replaced the fuel pump and the issue started .. correct?
 
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Old Dec 29, 2009 | 08:42 PM
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If it'll pop on ether you got a fuel problem
 
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Old Dec 29, 2009 | 10:54 PM
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Copendawd: No smoke when trying to start but getting fuel to the bowl?
If i had 3 bad injectors would it fail to start?
 
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Old Dec 29, 2009 | 11:01 PM
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Thumbs down

Hussler : Yes cruisen great pushed it in done dealn like is is Just havn fun yea just died
 
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Old Dec 30, 2009 | 12:01 AM
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Try spraying brake cleaner. I have a 97 f-350 turbo that wouldn't start but the brake cleaner did the trick just got it started last night
 
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Old Dec 30, 2009 | 09:55 AM
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Sounds like air in the lines to me as well. I think all you can do is keep cranking.
 
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Old Dec 30, 2009 | 12:51 PM
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it shouldnt take weeks of cranking tho if theres air in the lines, i know it takes a while but not 3 weeks
 
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Old Dec 30, 2009 | 01:50 PM
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You think it may be a IDM? Can you take it off and give it a shake? If you have water in it then it's bad.
 
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Old Dec 30, 2009 | 04:15 PM
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Ill try the brake fluid method. Will also check the IDM thanks for the ideas ill let you know what i find
 
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Old Dec 30, 2009 | 04:22 PM
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Sorry creteman79. The IDM is the last thing I can think of. Just unbolt it and and shake it around. If you can get the truck scanned somehow, that will really open the window on what the problem is. If you hear water splashing around it is bad. IF it is bad....you can pick one up from for for a mere 9hundred dollars or so! OR, you can go to the junk yard and pull one for 30-50 bucks! (just make sure when you pull it you shake it and listen for water)
 
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