got a question for y'all

on a WOT run from 60-80mph, my HPOP will climb above 3000psi and then fall off to around 2400psi (kinda hard to watch for exact numbers at 80mph) at the same time my duty cycle will rise to around 75%.

Does this sound like the HPOP is getting weak or could it just be the IPR that needs to be rebuilt/replaced?

Also...the ICP sensor is fairly new maybe 10K miles on it. But there is a little oil in the connection. not like standing oil but just a light coat....the old sensor was the same way when i replaced it. is a little oil normal?

 

My experience with the ICP is that if it has oil seeping from the middle of the sensor itself, then the sensor is possibly bad.

 

Remove the connector, and at idle, see if oil is leaking up through the sensor.

If oil is leaking past the o-ring and getting in the connector that is one thing (replace o-ring), but if it is leaking through the sensor then the sensor is not reading accurately and will eventually fail.

 

Holy cow...
Note to self.
Read the signature before you post, Cody

Pump time. If Stage 1's are using that much oil.....then you have a weak pump.

 

Hey Shawn,

That sounds like something that we can change out at RRE! Bulla is an ace at the HPOP and I bet Clay will have a new T-500.

Oh wait. That was last weekend.

 

SRP-1... Or an adrenaline...

 

Hey not to be a captain obvious but do yourself a favor and drop an LPOP in there at the same time as it would be a shame to not be able to feed that nice new pump!
Jim...& fat Monty

 

NO reason to replace the LPOP If there are no issues with it.

Leave it alone.

 

At 160k I have to disagree it's a reasonable mileage to replace it especially if your doing an HPOP it's a good inexpensive insurance policy! Just my opinion! And 25 years of diesel engine experience!
Jim...& fat Monty

 

Replacing a functioning LPOP when doing a HPOP is like changing the rear diff fluid because your doing an oil change... Just doesn't make sense.

LPOP's are not something that have an expiration date on them, there is never any guarantee that a new LPOP will not fail or any number of issues will not happen...

Leave well enough alone, Do you also recommend replacing CPS's because your in there?

In over a million miles of driving these trucks, working on these trucks and lending a hand on these trucks (12 years) I have seen one LPOP issue.

 

I agree with Joe. If it ain't broke don't fix it. Wait for some symptoms or use a mechanical guage to test for LPOP performance.

 

Don't be Ridiculos! I'm not an idiot, and im not for changing parts unnessecarly, but if you read the post he is after big VOLUME with a t-500 and why take the risk of installing that high dollar pump and not putting 80.00 melling LPOP in to feed it enough volume to operate at rpm is kind of like saying my truck hasnt been stolen why buy insurance!



Especially since the OP was referring to making big oil modifications to the top end witch is the only reason I suggested a new LPOP, had this been a stock truck thread it wouldn't have even crossed my mind, but he is talking VOLUME! Not stock!