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1999 - 2003 7.3L Power Stroke Diesel  
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View Poll Results: When did your first injector cup fail (MILEAGE)?
0-100K
0
0%
101K-150K
0
0%
151K-200K
1
50.00%
201K-250K
0
0%
251K-300K
1
50.00%
301K-350K
0
0%
351K-400K
0
0%
>400K
0
0%
Voters: 2. You may not vote on this poll

Cup Question - Ignore this thread

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Old Jan 16, 2019 | 08:57 AM
  #1  
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Cup Question - Ignore this thread

When did you change your injector CUPS? Even if it was only one, what was your approximate mileage for the first cup failure?

NOTE: Due to input and further consideration, let's CLOSE this poll and go the the one title "Injector Cup Replacement - POLL" >>> https://www.ford-trucks.com/forums/1...ment-poll.html
 
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Old Jan 16, 2019 | 09:15 AM
  #2  
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Mine failed around 180,000. I forget which cylinder it was but my symptom was soot in the overflow bottle. There was no fuel in the coolant.
 
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Old Jan 16, 2019 | 09:20 AM
  #3  
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I don’t see a “never” option.
 
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Old Jan 16, 2019 | 09:34 AM
  #4  
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Originally Posted by beef ****
I don’t see a “never” option.
Bazinga!

This message too short.
 
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Old Jan 16, 2019 | 09:35 AM
  #5  
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Stemming from **** question, location so it can be compared(weather), original owner(maybe used as hotshot/car hauler)..etc. Reason being, my l99 soent about 6mon when new, in Az. The rest has been so cal. My 02 was an Az lifer until last christmas and has a 5er hitch..(resealed hpop thus far), (nothing for l99)...just spitballing/comparing Pete but neither has cup replacement
 
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Old Jan 16, 2019 | 09:46 AM
  #6  
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I'd be more interested in a poll regarding how many people have actually had this problem. I bet it's way less than you think.

I'd wager under 2% of these trucks have this issue in 300k miles.
 
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Old Jan 16, 2019 | 10:13 AM
  #7  
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I'm at 208k miles and haven't had one fail yet (knock on wood).
 
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Old Jan 16, 2019 | 10:17 AM
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323k on the '01....has the cups from the factory yet.
I had a '96.....had the original cups when I sold it with 280k

Now injector o-rings....different story. About 150k on both.
 
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Old Jan 16, 2019 | 10:48 AM
  #9  
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Another "never". At least on anything I personally own[ed].

283K, 264K, 190K, and I didn't replace them in the 95K-mile heads during the last rebuild for the Crown Vic.

The 2000 has 283K on it and I've had 4 sets of injectors in it. Original cups. I got it at 196K.

The 1995 (264K) had 3 remans in it when I got it (the rest were original) and I installed a full set of reman AAs in it a few weeks ago. Original cups. I got it at 110K.

The engine in the 1973 has 190K on the original cups and injectors. I bought the donor at 181K but know the original owner.

The Crown Vic cups are now at 100K miles. The engine those heads came off of was used hard and abused....but it had an AIS filter so the valve seats were like new.

I've done five or six sets for other people. Then again, after owning many 7.3L Powerstrokes for many years and hundreds of thousands of miles, I've never had a cam sensor failure either.

We have 9 7.3L pickups where I work. They are all 180K-240K miles and again, no cups or cam sensors. Glow plug relays, oil cooler o-rings, and fuel bowl heaters are about it.

​​​​​​​
 
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Old Jan 16, 2019 | 10:55 AM
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Never for me as well. I hope, with the right coolant and the good maintenance the truck has seen, it'll continue to be a non-issue. 285k miles.

Also, 40k miles as of this week on my "done by me" clutch job....hope it holds!!!!
 
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Old Jan 16, 2019 | 12:03 PM
  #11  
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Another never here.

What might be instructive to include with a poll on having to replace injector cups would be what the coolant chemistry history of that engine was, if known.
 
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Old Jan 16, 2019 | 12:13 PM
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We're getting too many variables to track without a nesting of multiple polls. I don;t have the time at the moment, but will mull over how to configure the polls. It would be a good exercise and could offer some fascinating information, but I'm not sure how much any of us will actually benefit from digging too deeply.

I thought of including "never", but that doesn't include a mileage statement. "Never " with only 100K miles does not carry the same value as "never" with >400K miles. I think I can close the gap with a second poll asking just "never" or "yes", and I'll start that one now as well. I am also in the "never" group and am currently at 304K miles.
 
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Old Jan 16, 2019 | 12:44 PM
  #13  
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Let's close this poll and use the new one titled "Injector Cup Replacement - POLL" >>> https://www.ford-trucks.com/forums/1...ment-poll.html
 
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Old Jan 16, 2019 | 05:01 PM
  #14  
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Now you tell me!

Possibly change the thread title so we're not bouncing back and forth?
 
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Old Jan 16, 2019 | 05:16 PM
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Title changed. Thanks, Brian... I had not thought of that.
 
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