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Old 10-05-2017, 05:56 PM   #1
blue2002

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2001 dodge diesel clattering while acceleration

Have a 2001 with a airdog 2 gen four pushing 25 psi while idle and 22 when rev up. But if you drive it down the road it runs fine till you push pedal down. It clattering like a power stroke. Now if you lug it. High gear low rpms. It doesn't clattering till it comes out of putting it under a load.

Have block heater light on. 1690 and 1693 codes. No white smoke and no hard start.

So any input would be very appreciative.

Thank you
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2002 dodge HO, 6 speed, 4 inch exhaust with 5 inch tip,3.73 gears edge juice attitude, torque tube, AFE air filter, smarty c03, air dog 2, pick up straw upgrade and south bend clutch.
 
Old 10-05-2017, 06:05 PM   #2
me78569

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sounds like you are running too much timing.

Heres you 1690 code
P1690 VP44 CKP Sensor Does Not Agree With ECM CKP Sensor - OBDII Error Codes - Mopar1973Mans Dodge Cummins Forum

Do you have the s03 stacked with the edge? if so what level on the smarty? what does you IAT temps read? How about ECT?
 
Old 10-05-2017, 10:32 PM   #3
blue2002

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This is on a different truck I am registered with a 2002 and the one I am having the problem is with a 2001. With no mods on horse power. It has a gen4 airdog lift pump. Factory injectors.
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Old 10-05-2017, 10:49 PM   #4
me78569

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troubleshoot the code.

I would still like to know what IAT and ECT are reading? IAT temps can have a significant impact on timing.

My guess however is the code is related. The code is saying the ecm and vp don't agree as to what position the crank is in.
 
Old 10-06-2017, 06:59 AM   #5
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Idk if this helps but... I have noticed that the higher the lift pump pressure the louder rotary pumps chatter, 24psi IMO is high for a vp44, my fass sits at 15psi all day long. When I had the old air dog it was 21 and lots of pump rattle. Cp3 pumps are the same way especially duramax pumps. You just may not hear it at idle because the VP44 is spinning slower
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Old 10-06-2017, 10:25 AM   #6
CorneliusRox
 
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I know you're talking about fuel, but I've seen a few that sound like what you're describing when the flex plate is about to let go.
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Old 10-06-2017, 11:24 AM   #7
BRE
 
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Idk how you're getting away with that kinda pressure on a vp anyhow.


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Old 10-06-2017, 11:33 AM   #8
me78569

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Quote:
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Idk how you're getting away with that kinda pressure on a vp anyhow.


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LMAO its called #Airdoglife Been there done that. Many years spent at 25 psi idle to keep from low single digit fuel pressure under load. No issues other than burning through raptors like they were going out style.
 
Old 10-06-2017, 12:32 PM   #9
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LMAO its called #Airdoglife Been there done that. Many years spent at 25 psi idle to keep from low single digit fuel pressure under load. No issues other than burning through raptors like they were going out style.
Or... just use the correct pressure, and get a pump that can actually sustain it correctly
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Old 10-06-2017, 12:41 PM   #10
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in a perfect world yes. However I had a raptor that I needed to make work so I did.

I have since resolved the issue with a pump that can actually pump. Point though is the vp44 isn't going to self destruct if you put 25 psi to the inlet.
 
Old 10-06-2017, 01:15 PM   #11
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in a perfect world yes. However I had a raptor that I needed to make work so I did.

I have since resolved the issue with a pump that can actually pump. Point though is the vp44 isn't going to self destruct if you put 25 psi to the inlet.
If it work cool, however since you have an airdog back the pressure down and see if it helps the noise
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Old 10-06-2017, 01:16 PM   #12
BRE
 
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My point being... the seal usually (notice I said usually) don't handle that kinda pressure.


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There really is nothing better than OEM. That goes for anything from turbos to boobs.
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Old 10-06-2017, 04:24 PM   #13
blue2002

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Well my 02 I am running 25 psi. Wot trying I drop down to 15 psi. However rattled this my 02 has never rattled like the 01.

As soon as I start building boost he starts rattling.

The codes are 1690 and 1693. Also the block heater light is on..

The rattle is coming from the motor. More of clattering. I guess could say like when you drive a vehicle with the timing to advance.

Also truck has no power.
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Old 10-06-2017, 04:36 PM   #14
Justappumped24v
 
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Well my 02 I am running 25 psi. Wot trying I drop down to 15 psi. However rattled this my 02 has never rattled like the 01.

As soon as I start building boost he starts rattling.

The codes are 1690 and 1693. Also the block heater light is on..

The rattle is coming from the motor. More of clattering. I guess could say like when you drive a vehicle with the timing to advance.

Also truck has no power.
Is your map sensor properly functioning
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Old 10-12-2017, 01:59 PM   #15
blue2002

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How would you find that out if the map sensor is working properly?
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Old 10-12-2017, 02:45 PM   #16
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How would you find that out if the map sensor is working properly?
multimeter. check resistance.
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Old 10-14-2017, 10:31 AM   #17
blue2002

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Okay I have the converter for 01 to 02. I swapped them out from my 02 to that 01 truck. My 02 doesn't do it but the 01 still does it.

It seems to only start clattering when boost is built and no boost it runs just fine.
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Old 10-18-2017, 03:25 PM   #18
blue2002

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Found the probblem. Had bad battery's ..replaced them and truck runs fine now.
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