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. 

Recommended Posts

So I've been trying to get my truck going, and it's been hell. 

I bought a set of 150hp injector tips, and used the pop tester at school to set the pop off pressures (all were at or just under 4500psi,stock recommended pressure), put them in along with new o-rings, and copper washers. 

I got the truck started, and it idles great. But as soon as I roll on the throttle, it pops, sputters, tons of smoke. Its been doing this, and I've pulled it apart about three times checking to make sure I didn't rip or tear any o-rings during assembly.  So far everything looks good, everything is torqued to spec. Fuel pressure is a steady 20 psi. 

Do I suspect the injection pump now? Or where else would you all recommend looking? 

I will say when the truck was running, every now and then it would sputter badly, and tons of white smoke would come out of the exhaust. If I turned the truck off then on again, it would clear up. I suspect the timing piston is seizing up in the pump, but I'm not 100% sure either. 

Thanks for the help! 


Link to post
Share on other sites

Quadzilla is unhooked, and the only codes it's throwing is the map and boost sensor codes because quadzilla isn't hooked up.

I talked to a local mechanic, and he suggested try a crankshaft position sensor? I did replace the camshaft position sensor whilst trying to diagnose this problem.

BTW, which sensor feeds the tach signal? Mine is working, but I'm just curious.

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.

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.

  • Create New...