12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Power Loss, Higher Egt's, Boost fine, Low idle

Thread Tools
 
Search this Thread
 
  #61  
Old 01-06-2014, 09:23 PM
Thelast12v's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2013
Location: TX
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

It has sound you just need to turn the volume it's pretty easy to hear. The issue I'm having is I only have power in overdrive because it's the only time that the RPMs drop in the torque converter locks up within the power band. I also noticed that my truck doesn't wind past about 2200 rpm's in gear even though I have a 3K gsk want to watch other videos on YouTube the trucks wind up a lot farther and then drop back down before the torque converter locks. In the second video you can see them rpm's don't drop and I'm going through all the gears they don't drop at all through shifts. Only Four clicks on the star wheel, She only Blacksmoke's before the Turbose spools up when you romp it from a dead standstill or an overdrive when it lugs from the low RPM. You can also hear the excessive turbo Whipple and I rechecked the shaft there's absolutely no play

---AutoMerged DoublePost---

Sorry for the bad grammar I'm using Siri Because I injured my hand
 

Last edited by Thelast12v; 01-06-2014 at 09:23 PM. Reason: Automerged Doublepost
  #62  
Old 01-06-2014, 09:27 PM
turbo2332's Avatar
Diesel Bomber
Join Date: Jun 2011
Location: Indiana
Posts: 2,171
Received 104 Likes on 101 Posts
Default

no it only feels like you have power in OD. when i was new to the game i thought the same thing. Damn this truck is slow how do i get into OD faster. no that the truck makes 4x the hp it used to i want to stay the hell out of OD so much. the -wipple- if you will is the turbo barking. it is coughing because of the sudden lack of rpms and thus being forced to slow down. its pretty bad for a turbo. super common in an auto truck. there will only be a small drop in rpms with your truck because the tq of these things is pretty awesome. if your tranny isnt beefed up much i would invest in a shift kit and a torque converter to firm up your shifts and hold better.


who the hell is siri?
 
  #63  
Old 01-06-2014, 09:40 PM
Thelast12v's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2013
Location: TX
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

I guess I'm still getting used to it. The transmission is a fully Bult Goerend. All I know is one day the truck started behaving differently than he used to Not my Goodway been driving me crazy Ever since

---AutoMerged DoublePost---

All I knows the truck is not as fast as it used to be. Whenever I'm climbing a hill and step on the gas it's like I can't go anywhere but the motor will still rev up. You going to YouTube and watch any other 0 to 60 videos you will see that any truck with Gov. spring kits will Revilot higher than mine. Also Siri is an app that allows me to talk into my phone and words will show up on the screen I can't tell if you're being sarcastic or not haha

---AutoMerged DoublePost---

If the damn RPMs would drop after each shift and torque converter would lock up at lower RPMs this thing would have twice as much power and be 10 times faster
 

Last edited by Thelast12v; 01-06-2014 at 09:40 PM. Reason: Automerged Doublepost
  #64  
Old 01-07-2014, 08:36 AM
turbo2332's Avatar
Diesel Bomber
Join Date: Jun 2011
Location: Indiana
Posts: 2,171
Received 104 Likes on 101 Posts
Default

sounds like your $5000 tranny is acting up. give them a call, ive never dealt with them but there is nothing but good said about them.
 
  #65  
Old 01-07-2014, 09:48 AM
Thelast12v's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2013
Location: TX
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Unfortunately the trabsmission is used and past its warranty , but I will do it anyway.
 
  #66  
Old 01-12-2014, 05:59 PM
Benjamin's Avatar
Bombardier
Join Date: Mar 2007
Location: Da' Dirty South
Posts: 9,655
Received 607 Likes on 502 Posts
Default

sounds like a truck with stock gov. springs in the 0-60 run.
 
  #67  
Old 01-12-2014, 06:50 PM
4x4manonbroke's Avatar
Diesel Bomber
Join Date: Jun 2010
Location: Tacoma
Posts: 3,202
Received 142 Likes on 136 Posts
Default

ALSO ... making or allowing the turbo to "Bark" is a good way to pop the compressor wheel , as the sound your hearing is the Boosted air blowing back through the comperssor housing ... basically flowing backwards ... not a good sign ..
 
  #68  
Old 01-12-2014, 10:18 PM
Thelast12v's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2013
Location: TX
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

There's not much i know to do a out the backwards air flow, it does it really bad in OD and shifting into OD. It started doing it like that when the other problems started occurring. So do I have a Trans issue or a pump issue or both? Is the questions. It revs to 2800-3000 easily enough in N, different story as you can see in gear
 
  #69  
Old 02-14-2014, 12:02 AM
Thelast12v's Avatar
Diesel Fan
Thread Starter
Join Date: Jan 2013
Location: TX
Posts: 68
Likes: 0
Received 0 Likes on 0 Posts
Default

Recent developments, nothing has changed, truck went back to idling at around 680 in gear warmed up. Still kinda sluggish off the line as you can see from the 0-60 vid.

Side note: It's been really cold here, and in cold weather (17-30) even with 2 cycles of the grid heater, she wont start up with out holding my foot on the pedal. Manually high idle it for about 6-10 sec's then it idles by itself, but really low for probably 1min or more. If I trie to drive it without letting it idle for less than a min or 2, it will miss on acceleration and pour white smoke. Behaves normally after about 5 mins of warm up.

At this point I don't know if there is even anything actually wrong with the truck or if I'm just going crazy. Other than a weak pump and a bad TC, all I can think of is the Governor springs were just never tuned right, that or, low compression which I doubt because the truck has 0 blow-by.
 
  #70  
Old 02-14-2014, 09:07 AM
turbo2332's Avatar
Diesel Bomber
Join Date: Jun 2011
Location: Indiana
Posts: 2,171
Received 104 Likes on 101 Posts
Default

well your idle is to low. if you have to put your foot opn the pedal to start it you dont have enough start fuel. turn the idle up to around 800 idling and that will solve that problem. the white smoke is retarded pump timing or leaky injectors.
 


Quick Reply: Power Loss, Higher Egt's, Boost fine, Low idle



All times are GMT -5. The time now is 12:37 PM.