24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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apps symptoms

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Old Nov 12, 2009 | 08:59 PM
  #1  
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Default apps symptoms

I am just looking for some reinforcement opinions that my problem could be my apps and not my vp44. I want to hear some of the strange symptoms that the apps can cause that are not vp44 related.
any input would be helpful in saving big $$$ thanks
 
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Old Nov 12, 2009 | 09:01 PM
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throttle response drops off to zero then comes back on suddenly
 
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Old Nov 13, 2009 | 10:23 AM
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shift points change a bit at times
torque converter might stay locked when it should release
can go in and out of TC lock up for no reason
truck "feels" sluggish
mileage drops
and what whit wrote above, that's classic APPS failure.

Check the voltage on the APPS if you haven't already. You can adjust it if it's off. It's pretty easy.
Also, check for codes if you're having issues.
 
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Old Nov 13, 2009 | 10:41 AM
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APPS will always throw a code... (P0121, P0122, or P0123)

VP44 might throw a code it might not...
 
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Old Nov 13, 2009 | 07:05 PM
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don't know if it threw a code or not, and have not road tested her yet, but I am not going to throw my old one away just yet. I went ahead and found one today out at Pueblo Diesel Injection out the door for about $450. I hope I didn't waste my money. I have about 1500 miles that I have to go over the next ten days, so I will find out if that was money well spent. It did seem to make it start easier and not tons of gray smoke on cold startup. I think I am moving in the right direction now, but I am still not convinced that the vp is also a problem. I will add to this when I get back around Thanksgiving.

I will say for sure though that my Cr@ppy running Cummins runs a lot better than my good running powerjoke
 
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Old Nov 13, 2009 | 07:11 PM
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Old Nov 13, 2009 | 07:14 PM
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Originally Posted by crazycooter
don't know if it threw a code or not, and have not road tested her yet, but I am not going to throw my old one away just yet. I went ahead and found one today out at Pueblo Diesel Injection out the door for about $450. I hope I didn't waste my money. I have about 1500 miles that I have to go over the next ten days, so I will find out if that was money well spent. It did seem to make it start easier and not tons of gray smoke on cold startup. I think I am moving in the right direction now, but I am still not convinced that the vp is also a problem. I will add to this when I get back around Thanksgiving.

I will say for sure though that my Cr@ppy running Cummins runs a lot better than my good running powerjoke
Bit of a bummer as you can get an aftermarket APPS for under $200.
 
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Old Nov 13, 2009 | 07:44 PM
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Originally Posted by mishkaya
Bit of a bummer as you can get an aftermarket APPS for under $200.
No kidding... I know a guy selling them for $160...
 
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Old Nov 14, 2009 | 09:06 AM
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Let us know how that worked mines kinda actin funny too hopin its the apps and not the vp. Im thinkin apps cause it doesnt act up with cruise on.
 
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Old Nov 14, 2009 | 02:10 PM
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whish i had known about that $160 one before. this one was after market. Dodge wanted almost $600.

Im off here in a bit and will have more to add by thanksgiving
 
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