P0551 Dodge trucks?

Fix code P0551 Dodge trucks This sensor has a high failure rate. Worse than the fact that it leaks, the diaphragm inside may actually tear and force full pressure power steering fluid up through the wiring harness and down into the oxygen sensor wires. That can cause a P0171 lean condition.

  • Fix code P0551 Dodge trucks If you own an early 2000 Dodge Dakota, Durango, or Ram and have a check engine light and trouble code P0551, head right for the power steering pressure switch located in the high pressure power steering hose. This sensor has a high failure rate.

How do I fix code P0551?

What repairs can fix the P0551 code?

  1. Scanning the vehicle, resetting the code, and testing to see if it comes back.
  2. Changing the power steering fluid.
  3. Replacing corroded wires or connectors.
  4. Repair or replace the power steering system.
  5. Repair or replace the power steering pressure sensor circuit.

Where is the power steering pressure sensor located?

The power steering pressure switch is located either at the power steering pump or the gearbox.

What are the symptoms of a bad power steering pressure switch?

A failing power steering oil pressure switch can present a number of symptoms. Switch Failure

  • Engine revs dipping when the power steering is operated.
  • Engine stalls during low-speed steering/parking manoeuvres.
  • Engine Management Light (EML)Â coming on.

Where is the power steering pressure switch on a 2004 Dodge Ram?

The power steering pressure switch on Your 2004 Dodge Ram 1500 is located on the power steering pump in Your engine compartment. The pump’s located on the serpentine belt. You’ll be able to suss out the switch, since it’s the only wires from the engine harness that go near the PS pump.

How do I fix code P0137?

What repairs can fix the P0137 code?

  1. Replacing the O2 sensor for bank 1 sensor 2.
  2. Repairing or replacing the wiring or connection to the O2 sensor for bank 1 sensor 2.
  3. Repairing exhaust leaks before the sensor.

How do you test a power steering pressure sensor?

Power Steering Pressure Test

  1. With the engine stopped, install the pressure gauge with the shutoff valve in the open position.
  2. Start and idle the engine with the valve in the open position.
  3. With the gauge connected, close the shutoff valve for 5 seconds and compare it with the manufacturer’s specifications.

What does a power steering pressure sensor do?

Your car’s power steering pressure switch monitors the amount of pressure in the system, and communicates that information to the car’s computer. If it notices a drop in pressure, the car’s computer may turn on a warning light in the dash.

How much does it cost to replace a steering angle sensor?

The average steering angle sensor replacement cost is between $150 and $500, depending on the car model and labor costs. The steering angle sensor costs $120 – $250, and the labor costs averaging at $80 – $250. The first thing you might wonder after looking at the replacement cost is that it varies a lot.

Does electric power steering have fluid?

Electronic power steering uses no fluids so there are no hoses, no pump, no leaks and no maintenance. Also, power comes from the battery and charging system rather than a belt-driven pump, so electric steering requires less horsepower from the engine (for a slight gain in fuel economy and performance).

How do I know if my power steering pump is failing?

The symptoms of a bad steering pump include:

  1. Your Car Makes a Whining Noise Any Time You Turn the Wheel.
  2. Your Car’s Steering Wheel Is Slow to Respond.
  3. Your Car’s Steering Wheel Is Stiff.
  4. Your Car Makes Squealing Noises When You Turn the Key in the Ignition.
  5. Your Car Makes Groaning Noises.

Can I drive without steering sensor?

Yes, you can drive without power steering, however, that does not mean you should! You may notice your steering still works, but soon you’ll regret not going to the gym regularly because the steering wheel will be very hard to turn.

What are the symptoms of low power steering fluid?

Signs of Low Power Steering Fluid

  • Difficulty turning the wheel: There can be more than one reason for this symptom, but the bulk of the time, it’s going to be low power steering fluid.
  • Loud steering: Steering shouldn’t make sounds.
  • Shrill steering: Once again, this is a sound that no one wants to hear.

Can a power steering pressure switch leak?

The Ford Focus power steering pressure switch may leak because of a damaged or worn O-ring that is protecting the switch insertion into the power steering pump. Some of the symptoms of a bad pressure switch is a check engine light on, hard or rough steering, and engine stuttering under heavy steering load.

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What is a switch port on power steering hose?

The power steering pressure switch contains a diaphragm that actuates a contact switch. A spring pushes outward on the diaphragm keeping the switch normally open. The switch closes as the pressure of the power steering fluid on one side of the diaphragm rises high enough to overcome spring pressure.

P0551 Dodge trucks

The power steering pressure switch is situated in the high pressure power steering pipe of an early 2000 Dodge Dakota, Durango, or Ram, and if you have a check engine light with problem code P0551, you should look there first. The failure rate of this sensor is quite high. In addition to leaking, the diaphragm within may rip, causing full pressure power steering fluid to be forced up through the wiring harness and into the oxygen sensor wiring. This might result in a P0171 lean state. When the two codes occur at the same moment, it is possible that you will not make the connection.

The only way to remedy the problem is to replace the switch and thoroughly clean the wiring harness.

However, if you do not discover any leaking fluid, it is possible that the sensor is telling the truth, in which case you may have an issue with the power
steering pump.

If the replacement sensor continues to generate the P0551 error code, inspect the pump and fluid reservoir to ensure that the pump is receiving a sufficient quantity of fluid.

Rick Muscoplat posted a blog entry on

P0551 power steering pressure issue

Ok. This is my ninth attempt at typing a response. Before you post, try to keep it as brief as possible (if you can believe that after reading all this). Yes, I am responding to a discussion that was started in 2008. I created an account just for the purpose of doing so. 0551 code was received today on a 2004 Hemi with 64k miles. This post was the first Google result that provided an explanation for 0551. I’ve owned two new Ram pickup trucks straight off the lot. 97 and 04 are the years in question.

  • I dwell in the heart of the rust belt.
  • The power steering failed, the paint failed, and the back end failed.
  • Just now did I figure out what it meant.
  • My power steering has failed twice so far this year (2004 and 2005).
  • The second time around, aftermarket.
  • Not because of the mileage, but because of the truck’s age.
  • The clamps that were employed failed due to the chilly temperature.

Just to let you know, our equipment leaks when it gets chilly.

I’m done with it.

If it fails, it fails spectacularly.

I’m less concerned about it than I am about my driver’s air bag, which has the potential to kill me with shrapnel.

Thank you for informing me that we are sorry, but we do not currently have any product available.

We can’t stop you from dying, but we can’t stop it from happening.

Well. I’ve attempted to get it replaced. At the very least, my passenger side is in good shape. And by the way, it’s actually rather good where the power steering leaks and the back end is concerned. Maybe? Those are the only locations on my truck where there isn’t any rust to be seen.

2002 Dodge Ram 1500-4wd-regular-cab-swb OBD2 Code P0551 Power Steering Pressure Sensor Circuit Range/Performance – MyCarSpecs United States

Power Steering Pressure Sensor Circuit Range/Performance is described as the cause of Error Code P0551, which indicates that the sensor’s performance has been compromised or is malfunctioning. A general difficulty code, which means that it applies to any vehicle equipped with a power steering pressure system, is represented by this error code. This includes, but is not limited to, vehicles from Chrysler, Dodge, Infiniti, Jeep, Kia, Lexus, Mazda, Nissan, Toyota, and other manufacturers. Like other generic codes, the requirements for this one differ from one manufacturer to another, as do the procedures for defining, diagnosing, and performing repairs.

  1. Driving your autos became difficult and inefficient as a result of this, especially at low speeds.
  2. Power steering pumps and boxes, as well as different hoses and pipes, as well as a steering rack, are all common components of a hydraulic-assisted system in most cars and trucks.
  3. When the PCM decides that one or more circumstances inside the PSP sensor circuit are outside of a certain intended range, the error code P0551 is generated.
  4. In many instances, this occurs at a lower 2002 Dodge Ram 1500-4wd-regular-cab-swb speed than the normal.
  5. However, after the first failure, the code should be automatically saved in the onboard computer of your 2002 Dodge Ram 1500-4wd-regular-cab-swb.
  6. Although it is possible that a mechanical problem is to blame, this is not always the case.
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Common Symptoms

  • When travelling at a low speed, the engine stalls due to an irregular idle. Impaired handling, making the 2002 Dodge Ram 1500-4wd-regular-cab-swb difficult to steer or choppy turning (due to the use of intermittent aid when steering). a leak in the steering fluid Whining and moaning sounds
  • An increase in the amount of gasoline consumed

Possible Causes

  • PSP sensor that is not working properly
  • PSP sensor connections that are loose or broken
  • Damage, a short, or an open in the PSP sensor wire are all possibilities. Power steering fluid that is contaminated or inaccurate
  • Fuse or relay that has failed
  • A leak in the power steering fluid system
  • Power steering pump that is not working properly
  • Rack or pinion that has failed
  • PCM with a defect (rare)

How to Check

Ensure that the battery and charging system are in good working order before proceeding with any diagnostic procedures or testing.

First Step

First and foremost, check the amount of steering fluid and replenish it as necessary. After that, look around the parking lot for any evidence of leakage. If there are any, look into it more. If the fluid level is low, make careful to check for mechanical leaks before proceeding with the electronic components of the system. Check the sensor itself, since fluid might seep into the sensor and cause it to malfunction. Check to see that the sensor is dry and free of evidence of damage, particularly leaks.

Pinhole leaks have the potential to be quite harmful. If you are not familiar with the hydraulic system, it is recommended that you take your 2002 Dodge Ram 1500-4wd-regular-cab-swb to a reliable repair shop for service and maintenance.

Second Step

Initial step: inspect and re-adjust the level of steering fluid as needed. Check for evidence of leakage in the parking lot after that. Continue to investigate if there are any. Ensure that there are no mechanical leaks before proceeding with the electronics if the fluid level has dropped below a certain threshold. Check the sensor itself for leaks, since fluid might enter the sensor through the housing. To check for damage or leaks, make sure the sensor is dry and free of indications of wear.

Pinhole leaks have the potential to be quite hazardous.

Third Step

Locate the pressure sensor’s electrical connection on the circuit board. Examine the area for oil remains or evidence of soaking. If the connection is drenched with oil, you have a serious leak problem on your hands. Before reconnecting, make sure the oil has been thoroughly cleaned. It is necessary to repair a connection that has shown symptoms of melting and corrosion. Note: Before conducting any electrical repairs, make sure the battery is disconnected.

Fourth Step

Keep an eye out for indicators of physical injury. Typically, when this code is used, the sensor is subjected to extreme environmental conditions. It’s possible that, even if all of the lines are properly connected, the sensor is rubbing against something and, as a result, is causing an electrical issue of some type. Make certain you secure those lines, particularly the one with the sensor attached to it.

Fifth Step

It is possible to check the integrity of the PSP sensor circuit (s). You can disconnect the circuit between the sensor and the PCM to rule out the possibility of a problem with your wiring harness. Consult your 2002 Dodge Ram 1500-4wd-regular-cab-swb service manual for the correct settings, then use your multimeter to double-check your work. If everything appears to be in working order up to this point, but the code continues to appear, it is highly advised that you take your 2002 Dodge Ram 1500-4wd-regular-cab-swb to your dealer or a reputable repair facility for a more sophisticated and complete diagnostic and repair.

How to Fix

The following are examples of frequent repairs for this code, depending on the diagnosis:

  • Sensor replacement for the PSP
  • Wiring, circuits, and connections that are open, shorted, or corroded are repaired or replaced
  • And Power steering fluid replacement due to contamination
  • Repair of leaks in the power steering pump
  • Changing out the pump or the rack

When using this code, there is a severe concern with the possibility of stalling while driving. This might pose a threat to public safety and cause inconvenience. Those who are not familiar with manual steering will have a difficult time maneuvering a 2002 Dodge Ram 1500-4wd-regular-cab-swb when this error number is displayed.

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help! error code p0551 – Dodge Dakota Forum

From Message
tony guilianoDodge DakotaJOIN HERE7/19/2003 22:25:15 Subject: help! error code p0551IP:LoggedMessage:my check engine light came oni checked the code and got code P0551 = power steering pressure sensor circut range/performance. is this a bad thing? can i still drive my truck? does anyone know where this item is located or have a diagram of it? so i can find it. is this a simple repair or do i have to take it to a pro? my power steering has been acting up mainly when turning left it gets tight.
teamfastDodge DakotaJOIN HERE7/20/2003 02:10:56 RE: help! error code p0551IP:LoggedMessage:A pressure sensor switch is included in the ps sytem. This switch will be used only with the 4.7 engine. Located on fixed line just after the pump leading to the r p assembly. The HIGH pressure hose. When sterring pump pressure exceeds 3275kPa +/- 690 kPa the normally closed switch will open and the pcm will increase engine idle speed. This will prevent the engine from stalling.Removal: disconnect elec. connection. Place a something below line to catch fluid, Remove switch, use a back up wrench to prevent line bending
tony guilianoDodge DakotaJOIN HERE7/20/2003 10:41:11 RE: help! error code p0551IP:LoggedMessage:team fastthanks for a replyis there a diagram of this any where can i still drive my truck remove switchreplace it or leave it out how much for a switchshould i drain and replace fluid with atf+4 like i have seen on this board
teamfastDodge DakotaJOIN HERE7/20/2003 17:54:59 RE: help! error code p0551IP:LoggedMessage:personally i would bring the truck in for an inspection. Its probably still under warranty? Long term effects of this could be damage to your rack and pinion or pump itself. There is a diagramin the shop manual for location but have a look under the hood, you should be able to spot it. It may be a faulty switch or pump. Have it checked soon.
tony guilianoDodge DakotaJOIN HERE7/21/2003 18:14:37 RE: help! error code p0551IP:LoggedMessage:teamfastthanks again for you info the power sterring sensor is 18.25+tax i will be getting it soon had to oder it from dodge i hope that will fix it.
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2000 Durango – Truck won’t start, I smell gas! Please help!

I went to the store and parked my Durango the day before yesterday. This is my Dodge Durango 4.7l V8 from 2000. There didn’t appear to be anything unusual. It takes approximately ten minutes for me to return out to the car, get in, and start her up. Because it’s extremely frigid here in Indiana, I always make sure she has enough time to warm up before we go. The vehicle starts and operates normally for approximately a minute after it has been turned on. After then, things start to go wrong. She begins to lose RPM’s and to tremble a little bit after that.

She then abruptly terminates the conversation.

After roughly three attempts, the vehicle will no longer even turn over.

(If you turn the ignition key to the start position three times, the OBD fault codes will be displayed.) However, it is plausible that this was the case previously.

I believe it is unconnected because the vehicle was previously operating normally despite the code being shown.

Is there a pressure switch for the power steering?

That will not prevent the vehicle from flipping over!

She will turn and turn and turn, as though she is trying to start but is unable to.

This is concerning because, based on previous experience, it appears that the gasoline is not going to where it is meant to go.

Have any of you come up with any other suggestions as to what it may be?

I’m aware that the pump, along with the fuel pressure regulator, is located inside the tank.

Please contribute any recommendations or ideas you may have.

Thank you very much!

With best wishes, Pat P.S. The truck had around 250,000 miles on it, and the only codes it had were P0551 and P0700. P0551, on the other hand, has already been resolved. There were no more codes to be found. Would a code even appear for a broken fuel pump if the pump were to fail? 0

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