Jump to content

Any Duramax gurus in here?


iluvfastcarz

Recommended Posts

I purchased an 01 Chevy 2500 today and already having problems with it. It wont rev past 2000 rpm, but it does rev fine at idle. I don't smell any diesel in the oil and it purrs like a kitten at idle all the way up to 2000 rpm. These are the codes that I am getting:

P0087 Fuel Pressure Too Low at rail

P0089 Fuel Pressure Regulator Performance

P0093 Fuel System Leak

P0118 Engine Coolant Temperature (high voltage)

Can anyone help me?

Link to comment
Share on other sites

Have you checked the fuel filter? Common fixes for this are tue fuel filter and fprv. If fuel pressure doesn't read high enough the truck will go into a fuel system limp mode, for ease of explanation.

 

If you need anymore help with this issue pm me. After you get this fixed, I have a built trans with ATS internals sitting here that just went up for sale with co pilot.

Link to comment
Share on other sites

Everyone always thinks they can get a good deal at the sale. That's why you buy green light.

 

I am a dealer so that is part of the game. Everything I buy is risky even if it has a green light on it.

I am going to shim the fprv and change the fuel filter. Can Columbus diesel rebuild the injection pump and maybe clean and check fuel flow on the injectors?

Link to comment
Share on other sites

I am a dealer so that is part of the game. Everything I buy is risky even if it has a green light on it.

I am going to shim the fprv and change the fuel filter. Can Columbus diesel rebuild the injection pump and maybe clean and check fuel flow on the injectors?

 

 

I'm willing to bet your injectors are fine. CDS can do just about anything but if you are trying to fix and sell I would buy a used injection pump and send it on its way. that is if it is an IP issue in the first place. Chances are its not but it isn't uncommon either. I wouldn't dump the money on CDS rebuilding it for sure. They do great work but they arent cheap.

Link to comment
Share on other sites

My uncle has a 2005 and his was a a fuel pressure release valve. He thinks it was on the passenger side fuel rail. Looks like a bolt. He said that there are a couple of cheaper performance bolts. He took his out and welded the pin hole shut.

He also said that the new valve is was $300 and the performance race valves are solid (no spring/pin hole)

Link to comment
Share on other sites

My uncle has a 2005 and his was a a fuel pressure release valve. He thinks it was on the passenger side fuel rail. Looks like a bolt. He said that there are a couple of cheaper performance bolts. He took his out and welded the pin hole shut.

He also said that the new valve is was $300 and the performance race valves are solid (no spring/pin hole)

 

I just shimmed the said valve and changed the fuel filter, cleared the codes and it is hauling ass as of right now. Thank you guys for your quick help and responses. :megusta:

Link to comment
Share on other sites

I just shimmed the said valve and changed the fuel filter, cleared the codes and it is hauling ass as of right now. Thank you guys for your quick help and responses. :megusta:

 

It most likely had a chip installed that bumped up the fuel pressure and wore out the spring. That is what happened on my uncles truck.

Link to comment
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.

×
×
  • Create New...