1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

1st gen no power?

Thread Tools
 
Search this Thread
 
  #1  
Old 11-06-2012, 11:59 AM
blackout's Avatar
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Default 1st gen no power?

so I have a pretty much stock non intercooled 1st gen. pump is turned up a little, straight pipe, and cold air intake.Has the 727 torqueflite transmission.
ive had the truck for a while . but recently it fell flat on its face. i will be on the freeway going 60 and its wide open.
feels like something is luggin it down . doesnt feel snappy. barely smokes now. my tranny fluid is not burnt. (some metal shavings on the magnet in the tranny pan..but was pretty clean down there.)

does the throttle valve cable need to be adjusted?

or does it seem like not enough fuel?
(i used to have 30 pounds of boost wide open..now im lucky if i get over 10)

any help is appreciated.. just want my power back!
 
  #2  
Old 11-06-2012, 12:09 PM
BC847's Avatar
Diesel Enthusiast
Join Date: Nov 2008
Location: In an old bus, down
Posts: 438
Received 108 Likes on 71 Posts
Default

Originally Posted by blackout
barely smokes now.
- Check the AFC's boost reference tube and be sure it's connected and not leaking.
- When was the last time you replaced the fuel filter?
 
  #3  
Old 11-06-2012, 12:36 PM
blackout's Avatar
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Default

it was about a month ago. fuel was clean. got all of the air out of the lines too. ill check the boost line right now
 
  #4  
Old 11-06-2012, 01:27 PM
12 valve and proud's Avatar
Diesel Bomber
Join Date: Jun 2012
Posts: 2,122
Received 151 Likes on 99 Posts
Default

What's the idle feeling like? Choppy or luggish?
 
  #5  
Old 11-06-2012, 06:05 PM
cumminskid92's Avatar
Diesel Enthusiast
Join Date: Dec 2008
Posts: 305
Received 4 Likes on 4 Posts
Default

Boost leak or possibly bad shut off solenoid? Any white smoke while accelerating
 
  #6  
Old 11-10-2012, 01:39 PM
blackout's Avatar
Newbie
Thread Starter
Join Date: Jul 2011
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Default

it starts perfect. but i did notice as i acclerate in park.. you can feel its a little choppy...i wanna install a fuel pressure gauge.. bad lift pump? probably needs replaced anyways the truck is 20 years old
 
  #7  
Old 11-27-2012, 07:49 PM
peterbuilt1024's Avatar
Diesel Fan
Join Date: Nov 2012
Location: North Carolina
Posts: 33
Received 0 Likes on 0 Posts
Default

I have about the same problem so please post if you find out what your problem is and I will do the same. Thanks.
 
  #8  
Old 11-27-2012, 09:26 PM
bladeyamaha's Avatar
Diesel Enthusiast
Join Date: Oct 2009
Location: TX
Posts: 456
Received 14 Likes on 13 Posts
Default

A new lift pump would not hurt. Here's a great upgrade. Reliable Company too. > 89-93 dodge 1st gen low pressure piston lift pump | eBay
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cdog121
1st Generation Dodge Cummins 89-93
6
11-16-2015 01:49 PM
Tory4
For Sale
0
02-01-2015 08:33 PM
ajpt6.9
1st Generation Dodge Cummins 89-93
3
12-04-2014 12:06 PM
myago92
1st Generation Dodge Cummins 89-93
3
10-17-2014 08:50 AM



Quick Reply: 1st gen no power?



All times are GMT -5. The time now is 12:35 PM.