Solving Common P0551 Error Code in Dodge Ram 1500

AvatarByCarl Frisch

P0551 is a diagnostic trouble code (DTC) for the Dodge Ram 1500. This code indicates that there is an issue with the vehicle’s power steering system, specifically related to the power steering pressure switch circuit. This could be caused by a faulty power steering pressure switch, damaged wiring, or a malfunctioning power steering control module. The most common symptom associated with this code is a lack of power steering assist as the vehicle is turned. Other symptoms may include difficulty in turning the steering wheel and/or an illuminated Check Engine Light on the instrument panel. In order to diagnose and repair this issue, a mechanic should first perform a visual inspection of all wiring and related components in order to identify any potential problems or damage. If no issues are found, then further diagnosis will be necessary to determine the exact cause of the problem. Depending upon the cause of the issue, repairs may include replacing or repairing faulty wiring or components, reprogramming or replacing components such as the power steering control module, or replacing other parts such as hoses and seals.

Automobile: History of Dodge Ram 1500

The Dodge Ram 1500 has been around since 1981, when it was introduced as a light-duty pickup truck. For the first generation, the truck was equipped with either a 3.7L or 5.2L V8 engine and came in either two or four wheel drive configurations. The exterior design featured a larger grille and headlights than its predecessors, giving it a more aggressive look. In 1994, the second generation of the truck was released with a variety of updates including an upgraded interior and exterior styling, improved suspension, and an optional 5.9L V8 engine.

In 2002, the third generation of the Dodge Ram 1500 was released with a completely redesigned frame and body structure. This included an updated interior design complete with leather seating options, as well as a variety of exterior features such as chrome bumpers and headlight surrounds for added style and protection. This generation also saw the introduction of the Hemi engine option which provided enhanced performance capabilities compared to previous models.

The fourth generation of the Dodge Ram 1500 came out in 2009 with even more improvements to exterior styling such as redesigned grilles and headlights, improved suspension, larger wheels and tires, as well as increased ground clearance for off-road use. The torque-rich 5.7L HEMI V8 engine became standard on all models in this generation providing improved towing capacities over previous models. The fifth generation was released in 2019 featuring an even more aggressive styling along with improved fuel efficiency through its eTorque mild-hybrid system that gave it up to 20% better fuel economy than prior generations.

Design and Performance of Dodge Ram 1500

The Dodge Ram 1500 has consistently been praised for its exterior design which features bold lines on its hood and sides to give it a tough yet stylish look that sets it apart from other trucks on the market. The current generation comes available in several different trim levels each offering their own unique style options including different grille designs, wheel sizes, exhaust tips, and badging options to cater to specific preferences or needs each driver may have.

The engine specs on this model include several powertrain options ranging from 3.6L Pentastar V6 engines all the way up to 5.7L HEMI V8 engines for those who need maximum power for heavy-duty work or towing applications. Depending on which model is chosen there are various transmission options available including 8-speed automatic transmissions for smoother shifting during highway driving or 6-speed manual transmissions for those who prefer manual control over gear shifts while off-roading or hauling heavy loads over steep terrain.

Safety Features of Dodge Ram 1500

The safety features found on this model include airbags throughout the cabin designed to deploy during collisions helping protect occupants from injury while also providing additional cushioning during hard impacts; additionally it has earned top crash ratings due to its reinforced frame designed to absorb impact energy helping reduce damage caused by collisions between vehicles or objects encountered during travel such as trees or rocks when off-roading or driving through rough terrain; other safety features include anti-lock brakes which provide increased traction control while braking along with electronic stability control which helps keep drivers in control by monitoring their speed and automatically adjusting power distribution between left/right wheels depending on road conditions ensuring drivers always have maximum control over their vehicle at all times during travel no matter what type of terrain they may encounter along their journey thus helping them stay safe when behind the wheel at all times regardless if they’re driving around town or out exploring nature’s backroads alike!

Replacing the Throttle Position Sensor (TPS)

The throttle position sensor, or TPS, is a critical component of any automobile. It is responsible for monitoring the throttle’s position and providing information to the engine control unit (ECU). In order to maintain optimal performance, it is important to replace the throttle position sensor when it fails. Replacing the TPS on a P0551 Dodge Ram 1500 can be done relatively easily with some basic tools and knowledge.

The first step in replacing the TPS is locating it on your vehicle. It can usually be found near the throttle body or air intake manifold. Once you have located it, you will need to disconnect any electrical connections before removing the old TPS. This can usually be done with a flathead screwdriver or a pair of pliers.

Once you have removed the old TPS, you will need to install the new one. Make sure that you follow all instructions that come with the new part and connect all electrical connections tightly before securing it in place. After everything is connected properly, you can move onto testing and adjusting your new TPS.

Replacing the Idle Air Control (IAC) Valve

The idle air control valve, or IAC valve, is responsible for controlling idle speed on most vehicles. If your vehicle’s IAC valve has failed, then it will need to be replaced in order to keep your engine running properly. Replacing an IAC valve on a P0551 Dodge Ram 1500 is not difficult and should only take a few minutes to complete.

The first step in replacing an IAC valve is locating it on your vehicle. It can generally be found near the throttle body or air intake manifold. Once you have located it, you will need to disconnect any electrical connections before removing the old IAC valve. This can usually be done with a flathead screwdriver or a pair of pliers.

Once you have removed the old IAC valve, you will need to install the new one in its place. Make sure that you follow all instructions that come with the new part and connect all electrical connections tightly before securing it in place. After everything is connected properly, you can move onto testing and adjusting your new IAC valve for optimal performance levels.

Replacing Other Components as Necessary

Once you have replaced both your throttle position sensor (TPS) and idle air control (IAC) valve, it may be necessary to check for other faulty components that could also contribute to poor engine performance on a P0551 Dodge Ram 1500 model vehicle. This could include things such as spark plugs, fuel injectors, vacuum lines or hoses and any other related components that may have worn out over time due to use or age-related wear and tear issues. If necessary these parts should also be replaced in order to ensure proper engine operation once again .

Finishing Up Repairs

After all faulty components have been replaced on your P0551 Dodge Ram 1500, it’s time to finish up repairs by resetting ECU codes and testing vehicle operation once again . To reset ECU codes simply disconnect battery terminals from their respective posts for at least thirty seconds before reconnecting them again; this should clear any stored codes related to faulty sensors or components within your vehicle’s computer system . Lastly , test drive your car after giving it time start up properly , as this will help determine if all repairs were successful .

FAQ & Answers

Q: What is the History of the Dodge Ram 1500?
A: The Dodge Ram 1500 has been in production since 1981 and has been through several generations of design and development. Early models were available as two-door, regular cab or four-door, extended cab models. Recent models are available in two different body styles, a two-door regular cab and a four-door crew cab.

Q: What are the Design and Performance Features of the Dodge Ram 1500?
A: The exterior design of the Dodge Ram 1500 includes muscular lines with a bold grille and headlights. It also features a range of wheel sizes and bold colors to choose from. Engine specs include a range of options from a 3.6L V6 to a 5.7L V8, delivering up to 395 horsepower and 410 lb-ft of torque.

Q: What Safety Features are Available on the Dodge Ram 1500?
A: The Dodge Ram 1500 comes standard with front, side, rear and curtain airbags as well as stability control, trailer sway control and hill start assist for added safety. It also has earned an overall 5-star crash rating from the National Highway Traffic Safety Administration (NHTSA). Other safety features include blind spot monitoring system, rear cross path detection system, automatic emergency braking system and adaptive cruise control system.

Q: What Causes a P0551 Error Code in a Dodge Ram 1500?
A: A P0551 error code can be caused by low voltage in the sensor circuit or failed sensor components such as the throttle position sensor (TPS) or idle air control (IAC) valve. Other components may also fail which could cause this code to appear.

Q: What Repairs are Necessary for A P0551 Error Code in a Dodge Ram 1500?
A: In order to repair this issue, you will need to replace any faulty components such as the TPS or IAC valve as well as check for faulty wiring or connections in the sensor circuit. Once all faulty parts have been replaced and tested, you will need to reset any ECU codes before testing your vehicle for proper operation.

The P0551 Dodge Ram 1500 is a reliable and powerful vehicle that provides excellent performance and comfort. It is an ideal choice for those looking for a dependable truck that can handle heavy loads, towing, and other hauling duties. The truck also offers a comfortable interior and plenty of cargo space, making it suitable for everyday use. With its robust engine and tough build, the Dodge Ram 1500 is an excellent vehicle that provides exceptional value for money.

Author Profile

Carl Frisch
Carl Frisch
With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics (at Palo Alto Bicycles) and later as a working partner in my own store.

As the shop owner of Spoke n’ Word Cycles in Socorro, NM, the success of the mission was my responsibility, which I pursued passionately since we opened in 2003 through the spring of 2011. I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.

As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigners, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.

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