How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29430
Experience:  GM Grand Master Technician 2007. 14 years experience.
10949255
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

Chev...duramax is giving me a P1093 code and looses all power what

Resolved Question:

My Chev. truck with duramax is giving me a P1093 code and looses all power what is it ??
Submitted: 6 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 6 years ago.
Chat Conversation Started
GM Tech (Cam) :

Greetings and Welcome to Just answer.

GM Tech (Cam) :

Welcome

GM Tech (Cam) :

We are in a live chat window now.

GM Tech (Cam) :

That code sets because the fuel rail pressure is low.

GM Tech (Cam) :

There is a common issue with these engines. It is the fuel pressure relief valve. This valve is a small plug in the end of the drivers side fuel rail. When they get hot, the start to open a bit too soon and set this code. There is a cheap solution to this. A shim that will hold the pressure back. Here is a website that sells these shims. http://dmaxstore.com/index.php?main_page=product_info&products_id=93

GM Tech (Cam) and 5 other Chevy Specialists are ready to help you
Expert:  GM Tech (Cam) replied 6 years ago.

That code sets because the fuel rail pressure is low.

There is a common issue with these engines. It is the fuel pressure relief valve. This valve is a small plug in the end of the drivers side fuel rail. When they get hot, the start to open a bit too soon and set this code. There is a cheap solution to this. A shim that will hold the pressure back. Here is a website that sells these shims. http://dmaxstore.com/index.php?main_page=product_info&products_id=93

Customer: replied 6 years ago.
is this the only thing that will set this code ?? and would this be a waranty issue under emissions ?
Expert:  GM Tech (Cam) replied 6 years ago.

What is your mileage?

 

It will not be emissions, but it may be under the engine warrranty.

It could also be injectors, but if not warrranty, try this shim which MUCH cheaper than injectors at 400 each or more.