intermittent power loss - Dodge Diesel

1dumrednek · 06-12-2012, 08:54 PM

i had my truck apart this weekend to change the pushrod cover gasket, so i had the vp off and the ecm. now its running funny. it sounds way more rattly, like its running really cold. and randomly it looses power. like 3 psi boost right to the floor. no smoke or anything, its just not giving it fuel. then it cuts back in and runs normal right up to 45 psi. all the gauges on the monitor indicate good. any ideas?

KATOOM · 06-15-2012, 01:23 AM

Have you ever experienced dead pedal? Almost sounds like what you're describing.

1dumrednek · 06-15-2012, 01:55 PM

i had that once before. this is different. and i can watch the throttle % on the attitude moniter and its working fine. tried tightening the connections on the plug on hte back of the vp and didnt help

KATOOM · 06-15-2012, 03:38 PM

Maybe its something simple like a missed loose connection. But you mentioned that the VP was completely removed. Are you positive that you reinstalled it correctly and didn't misalign the key?

1dumrednek · 06-16-2012, 12:53 PM

I've been checking the connections, tightening them up, still doing it. Just unhooked the chip. Gonna try it like that.
If the pump key wasn't lined up, wouldn't it run horribly?

1dumrednek · 06-16-2012, 05:58 PM

Drove it with the chip unhooked and it still does it. I'm lost

KATOOM · 06-17-2012, 11:55 AM

If the key was misaligned then it "should" have a miss at idle. Does it run weird all the time or is this something intermittent?

1dumrednek · 06-18-2012, 08:51 AM

intermittent. and when its acting up, it only loads up to 36%.

KATOOM · 06-20-2012, 12:03 AM

Try resetting the APPS. Maybe something went awry when reinstalling since I'm guessing you disconnected the batteries.

1dumrednek · 06-27-2012, 01:27 PM

Pulled the pump back off and sure enough I didn't get the key all the way in and it sheared it off. I know your supposed to get a special key for each pump but all I had was a straight key and its running good with that

KATOOM · 06-27-2012, 01:45 PM

Thats a bummer. At least you found the problem. And yes, I understand that each VP requires a matched specific key but I couldn't say exactly why and what would happen if someone used another key.

06-15-2012, 01:23 AM	#2
KATOOM Registered User Join Date: Jan 2003 Location: The "real" Northern CA Posts: 2,244 My Photo Gallery My Classified Ads	Have you ever experienced dead pedal? Almost sounds like what you're describing. __________________ '01 5spd. 4x4 Sport shortbed, 285's, EZ, aFe intake, no silencer ring, straight piped, ISSPRO EV pyro/boost and FP all on pillar, Westach Transmission/Differential temp gauge in dash pod, Raptor 100 and Big Line kit to VP, Pac brake, 2 lo kit, Rancho RS9000X's, 2" leveling kit.

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06-15-2012, 01:55 PM	#3
1dumrednek Registered User Join Date: Mar 2009 Location: Battleford, Saskatchewan Posts: 244 My Photo Gallery My Classified Ads	i had that once before. this is different. and i can watch the throttle % on the attitude moniter and its working fine. tried tightening the connections on the plug on hte back of the vp and didnt help

06-15-2012, 03:38 PM	#4
KATOOM Registered User Join Date: Jan 2003 Location: The "real" Northern CA Posts: 2,244 My Photo Gallery My Classified Ads	Maybe its something simple like a missed loose connection. But you mentioned that the VP was completely removed. Are you positive that you reinstalled it correctly and didn't misalign the key?

06-16-2012, 12:53 PM	#5
1dumrednek Registered User Join Date: Mar 2009 Location: Battleford, Saskatchewan Posts: 244 My Photo Gallery My Classified Ads	I've been checking the connections, tightening them up, still doing it. Just unhooked the chip. Gonna try it like that. If the pump key wasn't lined up, wouldn't it run horribly?

06-16-2012, 05:58 PM	#6
1dumrednek Registered User Join Date: Mar 2009 Location: Battleford, Saskatchewan Posts: 244 My Photo Gallery My Classified Ads	Drove it with the chip unhooked and it still does it. I'm lost

06-17-2012, 11:55 AM	#7
KATOOM Registered User Join Date: Jan 2003 Location: The "real" Northern CA Posts: 2,244 My Photo Gallery My Classified Ads	If the key was misaligned then it "should" have a miss at idle. Does it run weird all the time or is this something intermittent?

06-18-2012, 08:51 AM	#8
1dumrednek Registered User Join Date: Mar 2009 Location: Battleford, Saskatchewan Posts: 244 My Photo Gallery My Classified Ads	intermittent. and when its acting up, it only loads up to 36%.

06-20-2012, 12:03 AM	#9
KATOOM Registered User Join Date: Jan 2003 Location: The "real" Northern CA Posts: 2,244 My Photo Gallery My Classified Ads	Try resetting the APPS. Maybe something went awry when reinstalling since I'm guessing you disconnected the batteries.

06-27-2012, 01:27 PM	#10
1dumrednek Registered User Join Date: Mar 2009 Location: Battleford, Saskatchewan Posts: 244 My Photo Gallery My Classified Ads	Pulled the pump back off and sure enough I didn't get the key all the way in and it sheared it off. I know your supposed to get a special key for each pump but all I had was a straight key and its running good with that

06-27-2012, 01:45 PM	#11
KATOOM Registered User Join Date: Jan 2003 Location: The "real" Northern CA Posts: 2,244 My Photo Gallery My Classified Ads	Thats a bummer. At least you found the problem. And yes, I understand that each VP requires a matched specific key but I couldn't say exactly why and what would happen if someone used another key.