Troubleshooting P1011 Cummins Error Codes With Easy Fixes
Do you have concerns about the p1011 Cummins code but have no idea what it is all about? This code means the low fuel pump delivery pressure. The issue emerges only when Engine control module (ECM) faults can cause the vehicle to malfunction.
The p1011 error code can also occur for a bad fuel transfer pump, clogged lift pump screen, plugged fuel filter, and damaged lift pump. This article will discuss all the reasons and solutions behind the error codes.
P1011 Cummins
First, have a quick view of all the possible causes and the most common symptoms.
| Causes | Solutions |
| Bad fuel transfer pump | Replace fuel transfer pump |
| The clogged lift pump screen | Clean it |
| Clogged fuel filter | Clean the filter and if still the problem isn’t solved, then replace it |
| Damaged lift pump | Replace the damaged lift pump |
| Faulty Fuel injector | Dissemble or replace |
Let’s check all the reasons and solutions to fix the p1011 error codes in the below guide.
Bad Fuel Transfer Pump
Sometimes you can see that when you are driving your 2007 Dodge Ram 2500 Cummins 6.7 truck up a moderate mountain grade, after going near the top, it has begun to fall off, started running quite rough, and ultimately died. You will also get the p1011 code in this case. This problem occurs if you have a bad fuel transfer pump in the tank.
Solution: You must replace the bad fuel transfer pump to solve this p1011 dodge Cummins 6.7 issue.
Clogged Lift Pump Screen
Some people had stated that the p1011 error code came up in their 2009 Dodge 2500 6.7 Cummins pickup when they were going up steep hills. If the same case is for you, you need to know that this happens due to the clogged lift pump screen.
Generally, it takes some time to get the lift pump screen clogged. The lift pump screen is designed so that fuel sloshing around in the lift pump cleans it.
Solution: Whether it’s about p1011 09 Cummins or other year engines, you must clean the clogged lift pump screen to get rid of this code.
Clogged Fuel Filter
Sometimes, you may see the p1011 error code on your 2007 3500 6.7L Chassis Cab. It will also show a check engine light in your vehicle. This problem occurs for a clogged fuel filter. In this case, you will not get any fuel pressure in your vehicle, resulting in rough running issues.
Solution: To solve this 6.7 Cummins no fuel pressure issue, you need to clean the clogged fuel filter. If the fixing does not work, replace the clogged filter with a new one with better filtration.
Damaged lift pump
Sometimes, you may see the p1011 6.7 Cummins code in your 2010 Dodge Ram 2500 SLT 6.7L Cummins truck. You will also get the check engine light. However, this issue happens for a bad or damaged lift pump.
Solution: In this case, replace the damaged lift pump to solve this problem.
Faulty Fuel injector
An erroneous fuel system is the most common cause of this problem. Throughout ignition, the fuel system involves spraying an excessive amount of fossil fuels into the exhaust gases, causing higher system pressure than is necessary.
Also Read: Everything You Need To Know About P1223 Cummins Code
With further pressure exerted, the nozzle will remain to descend it until it attains the lowest point in its stroke. This will result in mechanical issues and, if not an overview of the problems, may result in an unfortunate incident.
Solution: In this case, you may end up replacing any faulty equipment by disassembling the carburetor and removing it from the system. On the other hand, the replacement of the malfunctioning fuel injectors is also an option.
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Frequently Asked Questions (FAQs)
What causes low fuel rail pressure in Cummins vehicles?
Many reasons can cause the low fuel rail pressure in Cummins vehicles. It can show the p1011 error code in your Cummins vehicle. If you are out of fuel, this problem can happen with a bad fuel pump, a leak in the fuel line, a clogged fuel filter, and a damaged fuel pressure regulator.
How do you check the fuel rail pressure on a 6.7 Cummins?
To check the fuel rail pressure on a 6.7 Cummins, firstly, you need to verify the CP3 pump output volume. For doing that, check the high-pressure pump info. In addition, you can cap off every injector and check how rapidly the rail pressure climbs. It generally takes about 4000 pounds per square inch rail pressure to start.
What does the code p1011 mean?
The p1011 error code means the fuel pump delivery pressure of the vehicle is very low. This error code is set when the engine control module spots that the fuel pump delivery pressure is very low. It can be caused by a bad fuel transfer pump, clogged lift pump screen, clogged fuel filter, and damaged lift pump.
Final Verdict
It is annoying for anyone to see your Dodge Ram truck is rough running or stopped suddenly. You can also face the Dodge Ram truck not starting issue, and the check engine light came on. All these problems can lead to p1011 error code.
P1011 Cummins is a problem that can cause engine damage and may lead to an accident if not fixed promptly. After reading this article, we hope you can easily fix the p1011 Cummins error codes.
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D Conroy
Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.
