If I can't get this fixed im buying another chevy. - Ford Powerstroke Diesel Forum
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Old 04-09-2013, 06:03 PM
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If I can't get this fixed im buying another chevy.

now that I have your attention

After reading these forms for months, I decided it finally time to join and hope that somebody can please help me figure out whats wrong.

Truck: 1999 F350 7.3 power stroke, with the ZF6 and I think it's an April build date.

Problems: hard if not impossible start, smoking so bad it burns your eyes, and intermittent stalls from which it's won't always restart

New parts: Long block in 2004 by previous owner, 8 new injectors & glow plugs buy us ( ran AWESOME for about 3 weeks ) New turbo and pedestal, new ignition module( stopped the ignition for always being on), new cam position sensor, new glow plug relay and new valve cover gaskets.

What we know: cylinders 5 & 6 fail that balance/contribution test and it's not the injectors.

I know the ICP data is erratic, when it's unplugged we get the default value of 700psi but it still runs like crap.

EPB value seems suspect but I have no idea what a valid range of values are.

None of the IDM harness feeds appear to be grounded, and all of the switched grounds read open. the pin 26 ground had very high resistance, which we corrected and it still won't start.

After sitting all winter the truck refuses to start, we gave it some either and it popped but won't start, it sounds like it wants to start but it just won't catch.

Please help me figure this thing out. We are to far in to it to give up but we don't want to put in an HPOP or IDM to still have a crappy running truck .
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Old 04-10-2013, 08:31 AM
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best thing i can think of, is invest in an AE...

Riffraff Diesel: AutoEnginuity Total Ford Enhanced Bundle
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Old 04-10-2013, 04:24 PM
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Quote:
Originally Posted by timmyboy76 View Post
best thing i can think of, is invest in an AE...

Riffraff Diesel: AutoEnginuity Total Ford Enhanced Bundle
Im using a snap on scan tool. I am not sure why I would want another scan tool

Thanks though
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Old 04-10-2013, 04:45 PM
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Without any solid ideas, what's the oil look like/ last time it had an oil change?
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Old 04-10-2013, 04:49 PM
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Maybe bad fuel?
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Old 04-10-2013, 04:51 PM
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Is it smoking whle it's running or cranking? Bad up pipe leaks can do that.
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Old 04-10-2013, 04:57 PM
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Oil is good,
After sitting all winter fuel may be questionable, but it had these problems when the fuel was fresh
It smokes so bad it leaves oily residue you can taste when or if you can get it running
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Old 04-10-2013, 05:03 PM
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What color smoke?

Are you reading RPM's? Just because CPS is new, doesn't mean it's good.

How are the IPR numbers looking?

Have you verified oil level in HPOP before trying to start?
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Old 04-10-2013, 05:13 PM
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Quote:
Originally Posted by Macon View Post
What color smoke?
Blackish, all 5 of us there agreed it's excess fuel

Quote:
Originally Posted by Macon View Post
Are you reading RPM's? Just because CPS is new, doesn't mean it's good.
we were reading RPMs last fall, I think we also tried with the old CPS back in. when it was last running, i cound read the RPMS in the data stream I haven't tried while cranking

Quote:
Originally Posted by Macon View Post
How are the IPR numbers looking?
Last time it was running they looked OK not that I have a lot to compare them to. What are the expected range of values while cranking and running

Quote:
Originally Posted by Macon View Post
Have you verified oil level in HPOP before trying to start?
We have not, it's on tomorrows to do list. Sad part is after the injectors the truck was running perfectly until something else let go.
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Old 04-10-2013, 05:24 PM
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Quote:
Originally Posted by BigLou80 View Post
Blackish, all 5 of us there agreed it's excess fuel
Assuming the injectors are all good since you've replaced them, it's possible turbo related. Not enough air for complete burn. Are you running any tunes by chance?

As part of your early checks tomorrow, remove the air filter and intake tube and check the turbo wheel. Make sure it spins freely and all that.

Quote:
Originally Posted by BigLou80 View Post
we were reading RPMs last fall, I think we also tried with the old CPS back in. when it was last running, i cound read the RPMS in the data stream I haven't tried while cranking
Since it won't start, see if you can read RPM's while cranking. If not, I would suspect CPS issue again. Get OEM unit.

Quote:
Originally Posted by BigLou80 View Post
Last time it was running they looked OK not that I have a lot to compare them to. What are the expected range of values while cranking and running
I don't know while cranking, but my IPR runs at ~10% at idle.
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