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Discussion Starter #1
how reliable is the HPOP on a stock 96er?? just curious cuz my mechanic thinks my HPOP is going out.
 

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I have never heard of one actually being bad, most of the time when one is changed it is because of miss diagnosis. It is very possible that your mechanic is right and it is bad but it is also very likely that there is some other problem. Without knowing his troubleshooting methods and “why” he thinks it is bad I can’t say.

I know a new/rebuilt one form a 99.5-03 model will be an upgrade and it costs from $350-$450 depending on where you buy it.
 

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Discussion Starter #3
here are the symptoms that i am having:

1. most of the time when my engine is off for only a few minutes before restarting, the engine speed fluctuates, then levels off and idles normal.

2. this one only happens when i am seriously on the throttle, i am getting on the freeway or passing someone on the freeway, i get the check engine light and slowly lose power. i pull over and turn off my engine and give a few seconds before restarting. the check engine light is no longer on and i have normal power levels.

unfortunately this appears to be a "soft code". several mechanics have told me that in order to figure out what the computer code is, i need to catch in the act of losing power. unfortunately, i am no where near a shop when this happens and i don't have a scanner to use.
 

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A soft code is a myth. Any code that the PCM sees even intermittently will be permanently stored in the PCM until it is Read/Cleared, gonna bet it's not your HPOP "going out" you may have a week one, get the PCM scanned and see what the code is.
 

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If I was just determined to try something, I’d try changing the IPR, IF you need a new pump it most likely will not come with the IPR so you would need one anyway. It would be best if you had a scanner or could borrow a Diablo sport Predator programmer (it has awesome diagnostic functions) that way you could watch what’s going on while its happening.
 

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Discussion Starter #6
as of me typing this response (11:30am april 15th) it's at a local shop being looked at. waiting for a response to find out what is going on.
 

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Discussion Starter #7
ok, got a response from the shop. it is the IDM (injector driver module) and the sensor that goes with it. both are going out. only gonna take about 2 hours to replace both.
 

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Sensor that goes with an IDM????
Now thats a new one on me.

IDM's are relatively cheap from ebay or car-parts.com, and easy to change, Glad thats what it is.
 

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Discussion Starter #9
Sensor that goes with an IDM????
Now thats a new one on me.

IDM's are relatively cheap from ebay or car-parts.com, and easy to change, Glad thats what it is.
The IDM is $1k and the sensor is about 200.
 

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Sounds like another reason I like to fix my own stuff.
I’ve seen many IDMs go for around $200 or less on eBay. I bet you can get one from a junk yard for less than $100. I’d find out what sensor that is that supposedly goes with the IDM before I authorized any work to be done.
 

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So did they pull codes and find any IDM related?
 

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Discussion Starter #12
Sounds like another reason I like to fix my own stuff.
I’ve seen many IDMs go for around $200 or less on eBay. I bet you can get one from a junk yard for less than $100. I’d find out what sensor that is that supposedly goes with the IDM before I authorized any work to be done.
unfortunately both are Ford specific parts.
 

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unfortunately both are Ford specific parts.
Yes but you could still pull on off a junk yard 7.3, and check out powerstrokeshop.com, I bet they have one cheaper than what your dealer sells it for
 

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Discussion Starter #14
So did they pull codes and find any IDM related?
yeah, they pulled codes and said the IDM was on its way out. also, they said that the sensor that goes with the IDM usually goes out at about the same time.
 

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WHAT sensor????
I'm confused too

The PCM sends a signal to the IDM to fire each injector accordingly, the IDM then sends a signal (110 volts) to the specific injectors for firing. The IDM is a link between the PCM and the injector, it shouldn't have a sensor, it's a simple output device.
 

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Yep, thats why I want to know what sensor they are talikng about, sounds to me like they are blowing smoke and trying to get a big payday or they don't know whats wrong and want to throw parts at it.
 

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Discussion Starter #18
ICP sensor
 

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ICP sensor
ICP Sensor monitors High Pressure Oil system

IDM Fires each injector electronically as mentioned before,

So the two are part of you injection system but the ICP sensor is not part of the IDM. They might be taking you for a ride and ICP sensors are usually pricey.
 

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Discussion Starter #20
they said the sensor is about $300 from Ford
 
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