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'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

Thread: Fighting Stalls and Hiccups Reply to Thread
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  Topic Review (Newest First)
08-30-2018 07:53 PM
ArcticDriver
Quote:
Originally Posted by BroncoGlenn View Post
In theory yes, but part of what prompted the recall on the Fords as I recall was that when it went it would go out in style. No hiccup with a little miss while at running RPMs but a flat shutdown. The replacement CPS's as I understand will do a hiccup and miss but generally still run.
I wonder how they accomplish this?

A change in the very simple circuit board?
08-30-2018 07:48 PM
BroncoGlenn In theory yes, but part of what prompted the recall on the Fords as I recall was that when it went it would go out in style. No hiccup with a little miss while at running RPMs but a flat shutdown. The replacement CPS's as I understand will do a hiccup and miss but generally still run.
08-29-2018 11:28 PM
ArcticDriver
Quote:
Originally Posted by BroncoGlenn View Post
Thanks ArcticDriver. I thought about using an original black, but when my original one had failed it shut down hard. There was no missing a few times and refiring on its own, it was like the key got pulled. And it wouldn't restart until changed. I'd hate to be on some shelf road on my way up or down from a repeater site or out hunting somewhere and have that happen. Even with spare in the glove box that's no bueno.
I hear ya but isn’t that a risk with any CPS?

You need to get a ZF6. When it dies suddenly then you stop... 😉
08-29-2018 07:24 PM
BroncoGlenn Thanks ArcticDriver. I thought about using an original black, but when my original one had failed it shut down hard. There was no missing a few times and refiring on its own, it was like the key got pulled. And it wouldn't restart until changed. I'd hate to be on some shelf road on my way up or down from a repeater site or out hunting somewhere and have that happen. Even with spare in the glove box that's no bueno.
08-26-2018 11:55 PM
ArcticDriver Echlin w/chokes has been a proven winner with CCT to prove it.

Purple has been the “currently available” best out-of-the-box with no chokes. Just plug & play.

Original Black continues to be my personal choice with CCT to support it.
08-26-2018 10:39 PM
BroncoGlenn I thought the Napa Echlin CPS with ferrite chokes on the wiper harness was the next best thing to the factory original black CPS? Is the consensus now the purple it the bestofthebestofthebest or simply because the purple doesn't have the RFI interference from the wipers?

I had a Delhi CPS that held up against EMI from the intermittent wipers until it got older. However, when it failed (not as drastic as when my original FoMoCo black failed) it felt like the torque converter was going out when it started to cause hiccups and misses. Replaced with the Napa Echlin and did the chokes on the wiper harness as it appeared quire susceptible to EMI, or simply that my aging wiper motor was simply generating a lot more RFI in its age. Either way, choked it and it has been good-to-go.
08-20-2018 02:02 AM
ArcticDriver Seat of the pants is good but 950 miles and no PERDELS, etc seems a little early to draw conclusions.
08-19-2018 10:56 PM
robertth Good to know the purple and black CPS seem equivalent from a performance perspective. Thanks for the update.

I have always been worried when putting those fuel filters on that I get the angle of the wedged o-ring correct and that it doesn't bind when tightening down the cap. Make sure you have it smoothed and slickened with some diesel and that you feel around the cap to make sure the threads are all the way down and there is no gap.

I've never gotten one of the filters that comes with its own cap. I assume you did not get one of those either. I think I have heard others warn of using those.
08-19-2018 10:30 PM
Cowracer Just to put a nice cherry on the top of this story...

Truck pulled my 9500# camper from STL to Goshen Indiana and back last week with no issues. Figure about 950 miles total, and nary a single hiccup, burp or even blep. You have no idea what a relief it is. I notice no real diff between the old Black CPS (when it was ok) and the purple one, performance wise. I can only imagine its a few percentage points difference at best.

Now... Got back home yesterday (saturday) put the camper up and hooked up my flatbed to take my mower over to a buddy's house to weld a bracket on. On the way home, started getting whiffs of diesel, and noticed a white haze in the rear-view. Was really close to the house so I figured I would just get it home and see what the issue was.

Turns out that cheap-ass AutoZone fuel filter (that I KNEW better to buy) that I put in just before we left for the rally had the gasket split and it was spraying fuel right at the turbo. As I was running on a 35MPH road with virtually no load on it, I really never got the turbo cooking. I shudder to think what would have happened if it would have let go Saturday with the turbo nice and hot from pulling the camper.

With the vertigo and all the other stuff going on, I didn't have time to get a genuine Motorcraft filter. I figured one time couldn't hurt, right? WRONG! I damn near burnt down my truck, my camper and probably me, the wife and the dog as well. I had Autozone give me another filter, but that's just so I could get the truck and trailer off the street. It ain't moving again till I get a motorcraft.

Tim
08-11-2018 06:04 PM
ArcticDriver You might enjoy this:

https://www.thedieselstop.com/forums.../463090?page=1
08-11-2018 05:45 PM
ArcticDriver Yes, CPS eventually fail.
Thats why it is common practice to carry a spare in the glove box.

The magnet in the Black CPS has been tested by multiple forum members and the plastic casings have been cut apart and compared. The Black CPS has the largest and strongest magnet based on those observations.

I guess I don’t understand your continued concern. A CPS, like all electrical sensors eventually fail and require replacement.

Good luck in your quest.
08-11-2018 05:13 PM
robertth My first CPS that came with the truck got replaced under the 100k warranty after about 5 years of use, so I got hit with their $100 deductible. I know the one they put in was black. But I don't know the color of the one they took out. It would have been whatever came with the truck. After that initial failure, I got an extra black one and that is the one that lasted about 13 years. I am now running on the black one that was put in under warranty and which was only used for about 1 year. If they fail based on age and not on usage, I possibly am vulnerable. I hope not, but I fear that these magnets they use just deteriorate with age, in which case mine might fail pretty soon with very little use because it was manufactured over 14 years ago. If anybody has any idea about that, please post.
08-10-2018 08:08 PM
ArcticDriver You summed it up well.
I don’t know which one lasts longer. These recent posts indicate Black CPS lasting in excess of 10 years...I don’t know how anyone can have greater expectations than that?

People choose the Black for performance. Changing a CPS requires a 10-mm wrench and a skinny forearm and 15 minutes.

When using the gray, I had issues with #8 (and I think #3) when scanning PERDELS with my AuroEnginuity and just an overall noisier engine.

For an extra $30 over Ford Parts counter, you can get a NOS Black CPS off EBay and see for yourself.i sent you the link. The plastic packaging appears crisp so that CPS has not been boucing around in a glove box for 12 years...its been sitting on a shelf.
08-10-2018 10:06 AM
robertth Thanks ArcticDriver.

So from what you said before, is it true that the black one (F7TZ-12K073-A) gives the better performance but is no longer manufactured and sold by Ford, that the Grey one is the one they replaced it with, and the blue/purple one is better than the grey one but Ford won't say it it approved in the 2000 7.3 truck? If I got that right, what are the characteristics of the grey one that makes it worse than the black one? Is it the grey one that lasts longer?
08-10-2018 09:59 AM
ArcticDriver Official Ford Safety Recall 07S57:

https://static.nhtsa.gov/odi/rcl/200...7V553-4215.pdf

This article below includes the P/N you requested as well as more history:


https://deadheaddiesel.com/cam-posit...cps/#tab-con-7
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