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How to Replace Master Cylinder Fluid Level Sensor - Dodge Chrysler Plymouth 2.7L


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    • By Counterman
      Niterra North America Inc., formerly NGK Spark Plugs (U.S.A.) Inc., announced that the company is introducing 20 new part numbers for its O2-sensor line. 
      The new part numbers, sold under the company’s NTK brand, represent an increase in coverage for more than 4 million domestic, European and Asian vehicles in operation, according to Niterra North America.
      “These 20 new part numbers fit a variety of late-model domestic and import vehicles and range from entry-level economy cars to luxury cars to cargo-vans to sport-utilities,” said Matthew Bickford, NTK product manager, aftermarket. “NTK is committed to application coverage leadership and providing service providers the latest OEM technology and we are excited to be able to extend our latest sensor technology into the aftermarket with these applications.” 
      For more information about Niterra and the NGK Spark Plug and NTK product brands, visit
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    • By NAPA
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      Your
      link hidden, please login to view is one of the most important liquids in your vehicle. Brake fluid is what transmits your foot’s movement of pressing on the brake pedal into movement of the friction material at the wheel. It is rarely seen unless you check their brake fluid level or are unlucky enough to have a brake system leak. But your brake fluid is not immortal and needs changed just like any other automotive fluid. Your owner’s manual lists how often to flush brake fluid for a reason, so let’s take a look at how to flush brake fluid. Why Flush Fluid Brake Fluid?
      Just like every other automotive fluid, brake fluid changes as time passes. In the case of brake fluid, it gets contaminated.
      link hidden, please login to view is hygroscopic, meaning it absorbs water. That’s bad because if the water content in the brake fluid gets too high, it might boil under heavy braking. Brake fluid can also become contaminated with rust and copper.  Brake Fluid Flush Preparation
      Before starting a brake flush, you need to take these first no matter which type of brake flush method you choose:
      Turn off the ignition of the vehicle. Using a vacuum bulb or similar siphon, remove almost all of the old brake fluid from the brake fluid reservoir. Leave a shallow puddle of it to prevent air from entering the brake system. Top off the brake reservoir with fresh brake fluid. Lift the vehicle off the ground and support it on jack stands. Never work under a vehicle that is only supported by a jack. A jack is a lifting device only, a jack stand is a support device. Remove the tires and wheels. If possible, remove all four wheels, but you may also flush one wheel at a time. Place a drain pan under each wheel that you flush to catch the brake fluid as it drips. Once these steps are completed, you can move on to the brake flush method of your choice.
      Gravity Brake Flush
      With this method you let gravity do all the work. The tradeoff is that it takes more time than any other method.
      Open the brake bleeder valve on each wheel The brake fluid will drip from the open bleeder valves Keep the brake reservoir filled with fresh brake fluid Wait for the fluid dripping from the bleeder valve to run clear (this may take more than an hour) Once the brake fluid runs clear, close the bleeder valve Top off the brake fluid reservoir if necessary Manual Brake Flush
      This is the method most people think of when bleeding or flushing brakes. One person sits in the driver’s seat working the brake pedal while another person opens up the bleeder valves.
      Have an assistant sit in the driver’s seat Choose a wheel and locate the brake bleeder valve Ask the assistant to pump the brake pedal three times and then hold it down Open the brake bleeder valve to release the pressurized fluid Close the brake bleeder valve Check the brake fluid reservoir and top it off with fresh fluid if necessary Repeat steps 3–6 until the fluid is clear Top off the brake fluid reservoir if necessary Pressure Brake Flush
      Pressure brake fluid tools have become increasingly popular. This brake fluid flush tool uses pressurized air to push brake fluid through the system.
      Read the instructions included with the pressure brake fluid tool Fill the pressure brake fluid tool with fresh brake fluid as directed in the tool instructions Attach the pressure adapter to the brake fluid reservoir  Pressurize the tool as directed in the tool instructions Open the brake bleeder valve to release the pressurized fluid, and allow the fluid to flow until it is clear Close the brake bleeder valve Top off the brake fluid reservoir if necessary Vacuum Brake Flush
      As the name implies, this method uses a vacuum tool to pull brake fluid through the system. It is usually part of a
      link hidden, please login to view that includes a brake fluid catch bottle. Read the instructions included with the vacuum brake fluid tool Attach the vacuum brake fluid tool to the brake bleeder valve Pump the vacuum brake fluid tool to create vacuum at the brake bleeder valve Open the brake bleeder valve to begin pulling brake fluid through the system Allow the brake fluid to flow until it is clear Close the brake bleeder valve Check the brake fluid reservoir and top it off with fresh fluid if necessary Repeat steps 3–7 until the fluid is clear Top off the brake fluid reservoir if necessary Regardless of which
      link hidden, please login to view you choose, the goal is to replace as much old fluid as possible. You will likely use more brake fluid than you expect, but considering the long service interval, it is worth using a bit more fluid just to make certain. There is no difference between a brake fluid change vs. flush, they are the same process with the same goal: new brake fluid. The cost to flush brake fluid depends on who is doing the work. A DIY brake flush at home will only cost you the price of a few bottles of brake fluid, but a professional brake fluid flush using specialized equipment will likely put the cost at more than $100. 
      Check out all the
      link hidden, please login to view available on link hidden, please login to view or trust one of our 17,000 link hidden, please login to view for routine maintenance and repairs. For more information on how to do a brake fluid flush and a typical brake fluid flush price, chat with a knowledgeable expert at your link hidden, please login to view. You Might Need These
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    • By Counterman
      I love this topic. Unfortunately, many brake rotors end up unnecessarily in the scrap pile. But I also know the reasons why, and if I’m looking to place blame, well, we only can blame ourselves. But is it bad? I’ll get into that down the page, but let me set the stage first.
      Types of Rotors
      Up through the mid-‘70s, the majority of all brake rotors “on the road” were hubbed rotors. What this meant is that the hub was cast into the rotor. Most cars and trucks up through that time were rear-wheel drive, and if they had disc brakes as an option, 99% of the time it was on the front only. The front wheel bearings of these cars were housed in the hub of the rotor. The rotors were very heavy and expensive to produce, and the wheel bearings were the tapered style of roller bearing that required regular cleaning, greasing, adjustment and seal replacement.
      As front-wheel-drive cars grew in popularity in the mid-‘70s, so did the hubless or “hat” style of brake rotor. Hubbed rotors remained in regular use up through the mid-‘90s, but their popularity steadily declined until the hat rotor became almost the sole design choice of auto manufacturers. Hat rotors were far easier to service, with the front wheel bearings being sealed units mounted into the front steering knuckle. Hat rotors simply slid into place, and they were lighter-weight, less expensive and easier to manufacture.
      It’s All About the Metal
      Brake rotors get hot during braking, and they need to dissipate heat quickly. Functionally, all a brake rotor really does is absorb and dissipate heat. If a rotor gets too hot, it will cause brake fade and may easily warp, diminishing braking performance and causing severe brake vibration. The heavier the vehicle or the faster you’re going, the larger the rotors need to be, because the harder the brakes work, the more heat they produce.
      So, the size of a brake rotor is proportionate to the type of braking it will be required to do. What’s a larger rotor? It’s more metal. What’s a thicker rotor? It’s more metal. And what determines how much heat can be absorbed and dissipated? The physical amount of metal. When a rotor wears, the diameter stays the same, but they get thinner, and when you resurface them, you’re removing even more material. The less metal you have, the less heat the rotor is able to absorb and dissipate.
      How Brake Pads and Rotors Interact
      Under normal braking, the surface of the rotor will become grooved to varying degrees based upon the pad material. This doesn’t affect the braking; because it occurs as a result of the contact between the brake pads and rotors, the surface of the two remain contoured. However, this surface is not acceptable when installing new brake pads and prevents the correct break-in of new pads, and it causes uneven pad wear and noise. “Pad slapping” is the comical term we use to describe replacing brake pads without resurfacing or replacing the rotors.
      New brake pads have a break-in or “bedding” process that consists of repeated moderate braking. The purpose of the process is to bring the pads up to high temperatures in a controlled manner. When this occurs, the pad and rotor will transfer a thin layer of friction material to each other, allowing them to properly seat together. This is a very important aspect of brake service, as it ensures maximum braking and prevents brake fade, and this process only will occur correctly when new pads are mated with new or resurfaced rotors.
      Turning the Rotors
      We call it “turning,” because that’s the name of the machining process in which a workpiece is rotated against a fixed cutting tool. Any surface irregularities, including any grooves formed from normal service and also any rust or pitting, can be removed by turning the rotor.
      In addition to surface condition, rotors often suffer from different forms of distortion. Lateral runout is the side-to-side movement of a rotor, measured with a dial indicator while rotating it by hand. Parallelism is the thickness of a rotor measured at multiple spots around the circumference for comparison. When describing this to a customer, we generally use the basic term “warped” rotor. These conditions will cause a vibration during braking, and in some cases, just driving at higher speeds.
      Either one can be caused by normal wear or by incorrect mounting or installation of the rotor and wheels. Customers know what it means to have a warped rotor, and few of them care about the more technical terminology. Turning a rotor will correct these problems as well.
      Turning a rotor involves a number of steps, the first of which is measuring it to determine if it still will be above the minimum thickness afterward. In most cases, the minimum thickness is cast or stamped into the rotor, but often it’s rusty and difficult to find, so we generally have to look up the specification anyhow.
      Typically, when you turn a rotor, you’re going to remove a total of about .015 inches to .020 inches (15 to 20 thousandths of an inch) of material. It may be less on a really clean rotor, or more on a rusty, pitted or warped one. After measuring the thickness of the rotor and assessing the condition, you’ll know whether you have plenty of material left to turn it, or whether it’ll be too thin when you’re done.
      If you determine the rotor can be turned, the next step is to remove it from the vehicle and mount it on the brake lathe. Hat rotors require a thorough cleaning and rust removal from the mounting surface to ensure they seat properly on the brake lathe. The mounting surfaces for a hubbed rotor are the wheel-bearing races, from which you can just wipe away the excess grease.
      When the turning is complete and you’ve taken a final measurement to ensure the rotor is still at or above minimum thickness, the next step is to put a non-directional finish on the brake rotor, which aids in proper break-in. The most popular method is to use an angle-grinder with a cleaning disc, and it literally only takes a few seconds per side.
      The final step includes washing the rotor in a mild soap-and-water solution. Though not visible, small metal particles remain on the rotor after turning, and these particles will embed themselves in the pad and prevent an effective break-in. Washing the rotor removes these particles. Hubbed rotors will require removing all the old grease, since a wheel-bearing clean and repack is a normal part of this service.
      Back in the Day
      There was a time when the hum of a brake lathe was almost as constant as the ticking of the clock on the shop wall. Hubbed rotors were big, heavy and expensive, and they lasted a long time, because they could be turned and reused multiple times before they were too thin to put back in service. The expectation of customers during this era was that their rotors would be “turned” during brake service. Even with the additional cost of labor, it still was far more expensive to replace them.
      As the hat rotor slowly became the predominant rotor in use, many other changes were taking place in the automotive industry. Auto parts stores were opening up to meet the demands of the increasing number of cars on the road, and parts were being manufactured overseas. Price competition was high, and the more parts that were produced (hot rotors included), the less expensive they became.
      At the same time, technician salaries were increasing, and suddenly, the labor cost to turn rotors was increasing. Then there was the process of turning the rotors. My intent in describing the process was to provide an indication of the amount of work involved, but any machining process requires very specific knowledge and procedure as well.
      Turning a rotor is a machining process that can be done wrong as easily as it can be done right. Traditional hubbed rotors were very heavy, and as a result easier to turn because the weight inherently reduced vibration, and mounting them on the lathe was easy and straightforward.
      Two things kill a rotor when turning it. One, vibration; and two, incorrect mounting. Guess what? You probably figured this: Hat rotors are lightweight, so it’s much more difficult to prevent vibration, and they’re commonly mounted incorrectly on the lathe. Most of this happens because of incorrect training, or simply a shop not having the proper lathe adapters, or both. But that subject can be reserved for a whole different article.
      The trouble involved with turning hat rotors was sort of a nail in the coffin for the whole process. In today’s shops, you rarely hear the sound of a brake lathe. A good majority of the rotors that are scrapped could be turned and returned to service. But a new set of rotors is less expensive than the labor to resurface an old set (hubbed rotors being the exception). Then when you factor in the reality that they quite possibly could be machined incorrectly – causing a comeback – it simply doesn’t make sense.
      Replacing them is quicker, a shop makes money on the parts, technicians make more money on labor and they can get onto the next job quicker. It’s easy to think it’s wasteful when the old rotors could in reality be turned, but on the other hand, maybe it’s good for the economy. Shops make more money and parts stores make more money too. And the old rotors don’t end up polluting a landfill; they’re one of a scrapper’s favorite metals.
      They provide a source of income for scrappers and metal-salvage yards. Some shops save them and haul them in for scrap themselves. It’s good pizza money for the shop … or perhaps a cold beverage of sorts.
      When and Why
      Technically speaking, any brake rotor only needs replaced when it can no longer be resurfaced and remain at or above the minimum thickness specification. In the real world, as you can see, this really only holds true for hubbed rotors, which for the most part we only see on older cars and trucks. Resurfacing these rotors are the only ones we can justify, when you compare the expense of replacement.
      However, even if a rotor can be turned from the standpoint of thickness, there still are two other factors that can deem it scrap instead. One is cracks that occasionally result from the continuous heat-and-cooling cycle of a rotor. If a rotor is cracked, it should be replaced. The other is hot spots, which occur when rotors aren’t broken in properly. Pad material is deposited unevenly on the rotor, and these spots cannot dissipate heat properly, causing brake vibration.
      Hot spots are easily identified by an obvious discoloration on the surface of the rotor. In some cases, these can be removed by resurfacing the rotor.
      Selling Your Customer
      Your customer probably just wants a quick answer about replacement. Here’s an easy approach: Due to the critical importance of breaking in new pads, which relies on the surface of the rotor, any time you’re replacing pads, the rotors should be replaced as well – unless it makes economic sense to turn them. And that’s the key. With any rotor problems, unless it makes economic sense to resurface, replace them. As with any brake work, don’t forget to make sure caliper and pad slides are clean and working properly, and always torque those wheels.
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    • By NAPA
      If you drive a vehicle with an internal combustion engine, you can think of the battery like your vehicle’s beating heart. The battery cables act like arteries running a current to the alternator, which powers electronic systems such as the ignition system, the ECM (Electronic Control Module) and the lighting system.
      Bad Battery Cable Symptoms
      Just like in other areas of your vehicle, the components of your battery system will wear out and fail over time. Symptoms of worn or frayed battery cables are like that of a dying battery:
      Dimming or flickering of interior lights or headlights Engine hesitation when starting Clicking noises If you notice a buildup of flaky white or blue crust around the top or sides of your battery, that’s corrosion. It’s a common problem caused by small amounts of escaping hydrogen gas or leaking electrolytes on the top of your battery or the battery cable terminals. Corrosion can develop on older batteries that were overcharged, undercharged or exposed to certain environmental factors.
      The NAPA Network can show you how to replace battery cables in your car, as well as
      link hidden, please login to view, your link hidden, please login to view, your link hidden, please login to view and—depending on the extent of the damage—your battery tray and link hidden, please login to view. If you determine your battery has good voltage by using a link hidden, please login to view and doesn’t need replacing, then it’s time to check your link hidden, please login to view. Start at the cable terminals attached to the battery posts. Inspect both the positive and negative cables for fraying, knicks and splits. If you see anything that doesn’t look right, it’s time to replace the cables.
      Replacing Battery Cables
      Just like any good at-home automotive repair, you should start with all your tools ready to go, as well as safety equipment such as
      link hidden, please login to view and link hidden, please login to view. Replacing battery cables is straightforward, and you’ll need the following: link hidden, please login to view A Socket Wrench link hidden, please login to view link hidden, please login to view Step 1 – Using the screwdriver or socket wrench, gently disconnect the battery terminals from the battery posts—starting with the negative cable—then disconnect the positive to avoid shorting and potential danger. Trace the path of the negative cable to the chassis, then trace the positive cable to the fuse box. Make sure to take a picture or otherwise note the course so you can route the new cables correctly.
      Step 2 – Use the ratchet to loosen the negative ground nut, then remove the nut that holds the positive cable to the fuse block. Inspect these for corrosion and damage and replace them if the metal is soft or the threading is deteriorated. Inspect the terminal posts on top of the battery and use a
      link hidden, please login to view to remove any corrosion. Step 3 – Install the new cables starting with the negative. Reattach the negative ground nut to the chassis and the nut that holds the positive cable to the fuse block. Make sure the nuts are tight and snug.
      Step 4 – Route the cables the way you originally found them and connect the terminal ends to the clean battery posts starting with the positive cable, then the negative cable.
      Step 5 – Start your vehicle and ensure the electrical systems work properly.
      Removing corrosion, cleaning your battery terminals and replacing worn battery cables is a part of routine vehicle battery maintenance that most at-home mechanics can do. However, this job involves the electrical system of your vehicle, so if you don’t feel comfortable doing the replacement yourself or can’t find the time, we are here to help. Just find a friendly local
      link hidden, please login to view near you, and one of our ASE-certified technicians will replace the battery cables in your vehicle for you. We can even help you with an link hidden, please login to view to help you budget for your repairs and get you back on the road in no time! Photo courtesy of
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    • By Counterman
      Continental now offers an ultrasonic backup-sensor kit that can be retrofitted to or incorporated as OEM for virtually any vehicle including commercial vehicles, RVs and off-highway, agricultural and material-handling equipment.
      Out of the box, the ultrasonic backup-sensor kit provides an audible alarm to the operator when the vehicle comes within 10 feet of an object and beeps faster as the driver gets closer to the obstacle. The kit also can customized for specific distance intervals to meet OEM specifications.
      The innovative backup system delivers a voice announcement of object distance at specific intervals and easily integrates with on-board camera/monitor systems, according to Continental. When paired with a backup camera system, a monitor will display an overlay, revealing the active sensor(s) and the object distance from that sensor.
      “Backup sensors are an essential component of operator and workplace safety in modern vehicles,” notes Jared Hall, Continental product manager. “The Continental ultrasonic back-up-sensor kit can be fitted to a wide variety of vehicles including commercial trucks, buses, RVs, fire trucks, garbage trucks and agricultural vehicles, as well as construction, mining and material handling equipment.”
      The Continental ultrasonic backup-sensor kit is easy to set up and simple to configure as a retrofit or original equipment installation, according to the company. The kit includes four sensors, a central control unit and a speaker. Cameras, and monitors are available from Continental as options.
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