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post #1 of 14 Old 03-24-2013, 04:00 PM Thread Starter
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injector questions 01 f350 - help

Truck - 2001 f350 138k - stock
Ok, so I'm dealing with a cold start issue and so far I've replaced:
- gpr
- all 8 glow plugs
- starter
- alternator
- 5w-40 syn rotella with filter
- fuel filter
- EOT sensor
- ICP
- both batteries

Next weekend I'm installing a quad gauge set up - aeroforce scan gauge (I can monitor inj pulse width, duty cycle, etc.) pyro, trans temp, boost. So when I'm doing this ill have more answers from the scan gauge. Will also change CPS next weekend

But my problem is unless I have my heater block plugged in my truck won't start(when the truck sits for more than 6 hours) or cranks and cranks and possibly starts.

From all my reading this is most likely injector problems. And most likely worn poppets. I think this is correct because the symptoms align up. The colder and thicker the oil is = poppets don't function correctly.

HERES MY QUESTION OR AREA OF NEEDED HELP - TWO PARTS

Part one
I've read that if you pull the valve covers off you can look for an oil squirt from the injector? To verify the poppet is working .... Or something along this process - can someone elaborate this and explain it correctly to me. Also to achieve the oil squirt am I simply turning the engine on and turning it over, etc?

Part two
Once I get my aeroforce interceptor scan gauge installed what are the desired amounts I want to see for duty cycle, pulse width, ..... And can someone explain what the duty cycle is looking at

Actually a third question - I'm also pricing out a new set of stock inj - most likely reman because of money but I've read that using an AD injector in #8 won't make a difference - from my understanding inj 1-7 are AD and #8 is AE the longer injector - but other members have said it won't make a difference and also that aftermarket inj are all the same size (not a longer lead one for #8) ..... Can anyone verify or give input

Thanks - I'm looking to become a DIY on my powerstroke so any knowledge is helpful

Kyle

2001 F350 Chassis Cab 4x4 DRW Flatbed 130k miles+

Quad Gauge Pillar - Aeroforce Interceptor & Glowshift Series 7 EGT, Boost, Trans Temp
Foil Delete | Marinco Mod | High Torque 4kw Starter | Door Seal Mod | AIH Delete | Coolant Filter & 203* Thermostat w/ Billet Aluminum Housing | Hutch Mod | RiffRaff Fpx, Hpx, boots | WW2 | Deleted ebpv



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post #2 of 14 Old 03-24-2013, 06:36 PM
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do you have the romps in the morning if it is not plugged in overnight

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post #3 of 14 Old 03-24-2013, 06:55 PM
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i just fought a 2 month battle with my truck with your exact symptoms. turns out i needed new injectors.

I put injectors and and now my truck starts perfectly even when its cold as all get out now.

I replaced glows and relay and those didnt help at all.

injectors were the problem and fixed it. now i have a great running truck again

Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #4 of 14 Old 03-24-2013, 09:16 PM Thread Starter
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Quote:
Originally Posted by hotairgypsy View Post
do you have the romps in the morning if it is not plugged in overnight
Yeah if I don't plug it in overnight it misses in the morning and runs extremely rough

Kyle

2001 F350 Chassis Cab 4x4 DRW Flatbed 130k miles+

Quad Gauge Pillar - Aeroforce Interceptor & Glowshift Series 7 EGT, Boost, Trans Temp
Foil Delete | Marinco Mod | High Torque 4kw Starter | Door Seal Mod | AIH Delete | Coolant Filter & 203* Thermostat w/ Billet Aluminum Housing | Hutch Mod | RiffRaff Fpx, Hpx, boots | WW2 | Deleted ebpv



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post #5 of 14 Old 03-24-2013, 09:17 PM Thread Starter
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Quote:
Originally Posted by Colin7.3 View Post
i just fought a 2 month battle with my truck with your exact symptoms. turns out i needed new injectors.

I put injectors and and now my truck starts perfectly even when its cold as all get out now.

I replaced glows and relay and those didnt help at all.

injectors were the problem and fixed it. now i have a great running truck again
Where'd you get yours from, and how much?

Kyle

2001 F350 Chassis Cab 4x4 DRW Flatbed 130k miles+

Quad Gauge Pillar - Aeroforce Interceptor & Glowshift Series 7 EGT, Boost, Trans Temp
Foil Delete | Marinco Mod | High Torque 4kw Starter | Door Seal Mod | AIH Delete | Coolant Filter & 203* Thermostat w/ Billet Aluminum Housing | Hutch Mod | RiffRaff Fpx, Hpx, boots | WW2 | Deleted ebpv



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post #6 of 14 Old 03-24-2013, 10:15 PM
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Re: injector questions 01 f350 - help

Quote:
Originally Posted by Eco Taxi View Post
Where'd you get yours from, and how much?
I used a set I had in my shop.

But I highly recommend rosewood diesel he does a premium rebuild for $1200 or a basic overhaul for $500

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Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #7 of 14 Old 03-25-2013, 10:58 AM
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i would proceed a bit different...I had replaced my injectors and i still had the romps in the mornings then i pulled them and replaced the orings. well the romps are gone. with the miles you have i would do the injector orings first if you are mechanically inclined. They are around $60 on fleabay and a days worth of work but might save you 1200+ in money. DO NOT go with the cheap orings...get these... Ford Powerstroke 7 3 Injector O Ring Seals Oring Kits | eBay ....these are oem

DONE:
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post #8 of 14 Old 03-25-2013, 12:24 PM Thread Starter
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Thanks for the input, guess I should start with the cheaper fix (o rings) and see what happens then if necessary proceed to injectors

Kyle

2001 F350 Chassis Cab 4x4 DRW Flatbed 130k miles+

Quad Gauge Pillar - Aeroforce Interceptor & Glowshift Series 7 EGT, Boost, Trans Temp
Foil Delete | Marinco Mod | High Torque 4kw Starter | Door Seal Mod | AIH Delete | Coolant Filter & 203* Thermostat w/ Billet Aluminum Housing | Hutch Mod | RiffRaff Fpx, Hpx, boots | WW2 | Deleted ebpv



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post #9 of 14 Old 03-25-2013, 12:33 PM
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Quote:
Originally Posted by Eco Taxi View Post
Thanks for the input, guess I should start with the cheaper fix (o rings) and see what happens then if necessary proceed to injectors
not to bust your bubble but i had tried this same approach and it did not help the case at all.

Im still pointing to your injectors all worn out and need replaced.

have a shop run a contribution test of get auto enginuity and do it yourself

Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #10 of 14 Old 03-25-2013, 01:45 PM
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contribution test doesnt tell you what you need to know...all mine passed and i still replaced the injectors and showed same on the contribution test. in my case the orings with the new injectors were bad hence why i had to pull them after 3 weeks of having them installed. dont assume the orings with new injectors are bad. in my case the injectors had been sitting around for seven years so I should have replaced the orings but i took a chance. what is cool is i learned a bunch.

DONE:
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75HP tune
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