Jump to content
  • Welcome To Mopar1973Man.Com

    We can see that your guest and been lurking about. When you register on the Mopar1973Man.Com site you'll be able to interact with all the other members. This is the most friendliest Cummins forum you'll ever join. Take the time right now and  REGISTER  on the Mopar1973Man.Com this will open up many more options and functions on the website. Everyone is very friendly and helpful just ask questions and everyone will help you out the best they can. 

Sign in to follow this  
tonyjsan

Intermittent miss at idle, stumble on accelerate

Recommended Posts

Truck Specs: 2002 Dodge Ram 2500hd, Std Output 5 speed. Mods: BD-Diesel Flow-max Lift pump, BD-Diesel Exhaust Brake, AEM Brute Force HD air intake, Bully Dog Outlook with Performance Enhancement, Stock Straight Pipe. Recently my truck started intermittent miss at idle, and stumble during normal acceleration, under load / no load / from start.Truck has plenty of power, and good fuel mileage, Both conditions are random with no codes given, other than above exhibits no other issues.I've had issues with the bully dog outlook performance device in the past, causing stumble but goes away when I place it in stock mode. From what I've read on line in several places, it's been suggested that the computer on the vp44 might be starting to fail (ECM I think ?)Lift pump pressure is good. Any thoughts as to what might be going on (vp44,mpa, IAT)?Thanks in advance,Tony

Share this post


Link to post
Share on other sites

What did you use to check for codes? I know you said your pressure is good but what are the numbers? Sometimes that info tells alot! Have you checked your fuel filter?

Share this post


Link to post
Share on other sites

Codes and fuel pressure are a big help as stated. The vp has its own computer located on the top of the pump, the ecm is located on the block behind the fuel filter canster. the ecm can cost more than the vp.

Share this post


Link to post
Share on other sites

Mine has an odd 'stumble' sometimes, at idle. Usually takes place right after I come to a stop at a light or such. It'll stumble just enough to feel it in the chassis. Usually takes place once the fuel level gets down close to 1/4 tank remaining.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  



×
×
  • Create New...