bobcat injector problems

But if it constantly jumps out when you put power into it, that simply confirms something is wrong with your four-wheel-drive system. It's 2 easy checks and could save some grief. First raise the lift arms of the machine and install an approved lift arm support device. Both pipes feed in at the top of the tank, so clearly the engine must be doing something to create a siphon affect. The Bobcat 3400 UTV model is no exception ensuring the perfect balance of power, quality, performance, and reliability. And at time was it done. In my manual it show that as a rail pressure sensor fault. Expert Diesel Parts was established in 2015 to serve the farming, agricultural and construction communities across the USA and globally. We have talked a lot about diesel fuel injectors in some of our other blogs, but today we are going to go over how to remove a diesel fuel injector from a Doosan Bobcat engine. I have an older 543 Bobcat that I use occasionally around the house for landscaping and repair. You are using an out of date browser. Engine overheats Lack of engine coolant - The cooling system needs to be refilled and checked for faults. Before you decide on any plan of action please read this article. The first post is a list of all the repair posts in that thread. We also recommend using protective gloves and eyewear to prevent fuel leakage. Now that the hold down clamp is removed you can detach the injectors safety lock and unplug the injector. What I also found was a second fuel or air line coming from the tank and fitting onto a small pipe at the rear of the engine on the injector rail I guess its called. I'm not a diesel mechanic by any means but I'm also not a moron so I don't see any reason why I can't figure it out with a little guidance. The drive motor is one of the powerpoints of these tractors, especially the Skid Steer Loader. Again, if the hydraulic fuel filter is full of dirt or clogged, the loader wont get enough power. You will need to start by removing the airbox to get access to the injectors. If the return fuel is blocked, pressure increases in the injection pump. But they are not without a few drawbacks. If the fuel rail loses pressure due to a clogged filter or other reasons . Some Bobcat tractor models are available for all kinds of activities you can think of on the field. Well, guessing that the main culprit can be the primary or secondary clutch was not entirely wrong, but you need to be sure first before you actually take the action. But it doesn't seem to be the cold, we can't run our machine with the snowblower even as warm as 30 degrees. Damaged radiator cap or dirty radiator core - Clean radiator or change cap. Core Charge Required These pumps are very expensive and this might help. On the other side, white smoke can indicate a blown head gasket. The pump applies high pressure to fuel (22,000 " 34,000 psi) The common rail stores pressurized fuel The injectors deliver fuel to the engine Fuel injection pump . There is a small hose that goes to number one injector tap off line. With the things you've described, most likely failed lift pump. Definitely not the Bobcat brand that we have owned for years. What I ment was sometimes people accidentally put in gas instead of diesel. It has made a balanced combination of design and weight distribution that lets it provide more horsepower and breakout forces. If your compression is good, it would be worth getting your injection system done. Black smoke gets extracted when the engine doesnt receive enough air. Discussion in 'Skid Steers' started by siedow0621, Dec 16, 2009. JavaScript is disabled. After checking the fuel filter, its time to check the fuel tank. That problem seemed to fixed itself as it had been running trouble free for the last three years until today. Thanks for your patience! In fact, this problem also applies to a few tractors used on the field or farm. It is common to hear users inquiring about how to locate stores selling Bobcat tractor spare parts. Whenever we talk about any skid steer problem, this engine issue always comes first. We sell a wide range of parts including the entire fuel system kits for the D24, D34 and D18 engines. An introduction to the Detroit Diesel DD13 and DD15 Fuel System. The fuel injection system is a major area of focus for advancement towards clean operating diesel engines. Or you may be experiencing some issues with your machine and need to test your injectors to determine if they are faulty. Restore performance to your Doosan Bobcat D18 and D24 Tier 4 diesel engine with the brand new 7275454 Delphi fuel injector. Always fill the tank to the recommended level. The fuel systems on the Bobcat 1.8L & 2.4L Tier 4 diesel engines are high pressure common rail by Delphi. Some owners have mentioned that besides all the amazing features, the Bobcat 3400 is not the best option when considering a vehicle for straight-line performance. This is especially the case with owners living in rural areas. If you do not check this box, your product will not ship until Diesel Pro receives a qualifying core. The company initially received several consumers complaints about the 2015 Bobcat 3400 UTV models. Find the one about timing the LS180 etc and click on the link to open the pdf file. Another possible reason behind this shifting trouble can be the belt when you do not have an OEM belt. Clogged filters for the oil case drains also contribute to the failure of the motor. One quick check you can do with the Inlet metering valve (IMV) is to put your finger on the valve and turn the key on in the equipment. Something seems to be disallowing fuel through. for News, Products & Specials, 7249380 | Reman Fuel Pump fits Doosan Bobcat D18/D24, 7256772 | Delphi Fuel Metering Valve Fits Doosan Bobcat Tier 3/4, 7030409 | Genuine Delphi Fuel Rail fits Doosan Bobcat D24, 7275454 | Delphi Fuel Injector fits Doosan Bobcat D18/D24, Feel confident purchasing from a company who has been in the fuel injection business since 1985, Not sure whether your injectors are bad? Repair them if there are any. on how to clean your injector at home. But sometimes you need to replace the whole system, which costs a lot. Replace the battery in this case. Symptoms of Leaking Fuel Injectors: Hard Starting when engine is hot. Pinouts. If you do not, your IMV may be bad or wiring to the IMV may be compromised. Purchase your parts from us today or reach out if you have any questions. Here are 4 common problems of bobcat t590. We welcome you to register using the "Register" icon at the top of the page. You should also check the fuel cap to make sure it is venting. Inside the tank is a 1/4" ID vinyl tube ending in a steel screen assembly with a check valve to keep fuel from returning to the tank. Before you get started, please allow your engine to sit for an hour or so to cool off in the case that you were previously using it. Ideally, the charge pump releases the required pressure to the brakes and prevents a free fall drive. Perhaps you are looking at doing some maintenance work on your parts in which you should also review this. The Fuel injectors for the Bobcat Doosan D24 and D34 engines are high pressure common rail by Delphi. This is especially true if the tractors are driven for long hours. Discussion in 'Skid Steers' started by warbird, Feb 18, 2015. This will allow all of our members to see your question and give you the best chance to be answered. . The next time it begins to stall, don't let it die completely, try pumping the primer bulb and see if it continues to run. Make sure the wires from the joystick to the hydraulic pump and actuators are connected. Driving the machine on areas that need plenty of balance will require a lot of effort. The Fuel injectors for the Bobcat Doosan D24 and D34 engines are high pressure common rail by Delphi. D18 & D24 Injectors: 7275454 FUEL INJECTOR Apart from the problem of hard surfaces, the tires wear out rather quickly. You can maneuver it through tough terrain without thinking about overheating. You might have to further loosen it up by moving the injector to remove the hold down bolt. While operating, the engine seems very good, plenty of power, good idle etc. The company immediately got involved to investigate thoroughly. He also added that when it starts working again, the clutches grab hard, as if lurching the vehicle, and even on the low traction surfaces, it breaks the traction. Tires from the factory are fitted to accommodate lots of air. The fuel system consists of fuel filters, a fuel line, and a fuel tank. Its the perfect example of a well-built and well-equipped machine that lets you smoothly complete even the most demanding job. The machines are powerful, versatile, and built to last. Purchase your parts from us today or reach out if you have any questions. Your just checking every crazy thing that could be a problem. This is why an honest review on an independent, trustworthy website like this one is usually a good first step. The reinforcements made on the tires were probably designed for specific types of surfaces. Our technicians expect the update to take up to 24 hours due to the size of our files. Big snow chains on front tires only: is there slip between front and back wheels to allow for the now larger dia front tire. The brand also has good financing options for users who cant afford an outright payment. Some people overfill it and think it will work better. for News, Products & Specials, Troubleshooting Bobcat Doosan D18 | D24 | D34 Fuel Systems. I'm not sure what you mean by the 'elbow to the tank'. 1. If the valve fails, the engine has no way of responding to commands to move rail pressure up or down. This also causes the hydraulic fluid and gear oil to mix which can cause additional problems. Hydro-lock, which can lead to catastrophic engine failure. While researching and going through several online reviews, articles, blogs, and user forums to see how the consumers feel and react after owning the Bobcat 3400 UTV model, I discovered that most users are quite satisfied with their experiences. This will cause problems if the tractor is driven in locations such as construction sites and other places that are prone to tire punctures. Also, when your pressure gauge is turned faulty or damaged, it can give you the wrong reading. This can cause some serious problems with the tractors engine. The tractor tires do not last as long as expected. Also, check the entire fuel system thoroughly and clean up the fuel system and all electrical connections, if required. Finally, check all the seals and fittings to the control valves. As a result, driving up to a precise point at a low range or reverse becomes extremely difficult. Step 2. This isnt the case with faulty charge pumps. You may have to loosen the injector with help from a wrench. Diesel Pro can test your injection pump. My question is: should the ball pump up firm? Although I have already mentioned earlier belt and clutch can cause issues while explaining the other problems, several users have confirmed to encounter real trouble with the 2011 Bobcat 3400 because of the drive belt. It can happen when the ECU loses the connection or contact with the Transfer case actuator motor or the front different actuator. Fuel system can't keep up with the demand and constantly needs fuel filters to get through a storm. You will need to remove the hold down clamp and the bolt. SPONSORED. Another common issue for drive motors is clogged case drain filters. If you replace the injection pump or injectors and do not replace the fuel rail, there is a chance the debris sitting in the rail from a previous failure will once again be introduced into the components which were just replaced and cause premature failure. You will need to remove each rubber cap. And this can lead to a total shutdown of the tractor in some cases. We work with a lot of Doosan's D18, D24 and D34 engines which are commonly used to power skid steer loaders, excavators, track loaders, tow compressors and toolcats. Have someone turn the key on with the engine off and press the accelerator pedal all the way to the floor and hold it there for about 10 seconds. Another necessary check is the leaks or poor fits in the hydraulic lines. Common Problems of the Bobcat 3400: 1. The most obvious reason can be the bad, broken, or loose drive belt. The last one goes back to the fuel tank. Atart at one end and remove from the inejctor and pump. As a result, he was forced to shut down the engine and had to rock the engine in order to free the clutch so that the gear shifter can start shifting. In many cases, the tractor operator will have a tougher time getting full control of the machine, especially when maneuvering. Thanks for joining us and I hope you enjoy your stay!! Now go ahead and remove the fuel line on the injector that you need to replace by unscrewing both caps on each end of the fuel line. for the D24, D34 and D18 engines. There shouuld be a pickup screen with a one way valve in the tank. Thats because the fuel cannot flow due to the clogged filter eventually resulting in the power loss of the loader. The first thing to inspect is the hydraulic fluid level. Your bobcat t590 skid steer filter needs to be replaced after a certain time. JavaScript is disabled. Thank you for joining Heavy Equipment Forums! Hopefully someone here might be able to help me in the right direction. A quick check you can do with the injection pump is to connect a scanner to the equipment and monitor desired vs actual rail pressure. Regardless of whether you are cleaning or replacing the injector, we recommended using a new o-ring seal, just make sure you put lubricant when placing a new o-ring. Later in August 2018, the company recalled a total of 2,700 units of 3400 and 3400XL UTV models. Problem With The Electronic fuel injection Or EFI Based on several consumers reports, the 2012 version Bobcat 3400 gas UTV models have issues, such as engines starving for fuel, stalling, missing, and even engine misfiring or backfiring. I might get 5 minutes out of it, sometimes a little more, 10-15min. The fuel just runs back to the tank with the bleed screw open, close it then start the machine. , you can also contact us at contact@expertdieselparts.com. 10. Bobcat Doosan common rail fuel injection pump teardown and a look at how it works. However, just like other machines, you can face some problems with this one also. To make things worse, the problem can be tricky to figure out. These fuel lines are bolted down pretty firmly and it can be easy to damage a fuel line or not properly seal it back. We get a lot of calls from our customers asking about the various components on the Bobcat common rail fuel injection systems. This process looks fairly similar for each fuel system so let's get started. If there is an open or short circuit in the glow plug, it can cause the engine to be defective. I used the hand pump to feed fuel into the glass bowl. Engine oil level is insufficient - Check and refill engine oil. Sometimes, the steer doesnt respond at all. Also, the service light turning On can indicate the bad switch, sensor, or 4WD linkage. The bucket fails to tilt and lift when the pinouts on your loader's harness plug are not compatible with the bucket. (You must log in or sign up to reply here. It is not uncommon for many Bobcat tractor users to believe that their motor is faulty when the actual problem is with the charge pump. The reason for this is there is no great way of cleaning the fuel rail. Affiliate disclosure: As an Amazon Associate, we may earn commissions from qualifying purchases from Amazon.com. So keep the skid steer under regular maintenance and enjoy long-time service from it! 2023, Expert Diesel Parts Powered by Shopify, How to Remove Bobcat Injectors Fuel Injector 101, We have talked a lot about diesel fuel injectors in some of our other, There may be several reasons why you might need to remove an injector. I should also say that the tank did run empty at one stage, never had problems before that, possibly there is air in the system disallowing fuel to be pulled through. The problem: The engine starts and runs normal for a short time and then dies. Replace the head gasket to solve this. Sometimes, it can also happen when your fuel system and electrical wiring or terminals covers with an excessive volume of corrosion and external debris. My bobcat 743 is puffing some major black smoke when in heavy use. Thanks for that. Some users who drive the Bobcat tractors on concrete, asphalt, and other types of hard surfaces discover a common problem. A small amount of contamination can invade the control valves in these injectors and cause premature failure. Diesel Pro has developed an 8-step testing procedure to electronically simulate the on-engine conditions on our test equipment. It appears to be a gravity fed system somehow. So if you have limited space but need maximum lift height, this is the one you should go for. Usually, this kind of occurrence is a possible indication of insufficient fuel pressure. Before you go off and get your injectors and pump repaired, i would check your valve clearance, then do a compression test. But the sad news is that he ends up replacing both clutches with new ones without figuring out the actual issue and the problem stayed as it was earlier. . Before replacing the any common rail fuel injector, cleaning the rest of the fuel system is critical. The problem has come back, I have checked the fuel lines, the fuel pickup tube in the fuel tank, replaced the fuel . I discovered that if I squeezed the fuel primer ball every 15 seconds, the unit would stay running. bobcat 843 injector pump Yesterday's Tractors Forum Index > Crawlers, Dozers, Loaders and Backhoes Jump to: TRACTOR PARTS TRACTOR MANUALS We have the parts you need to repair your tractor - the right parts. At one time, the engine completely refused to start, even the next day. To bleed it, you open the bleed screw, squeeze the hand primer till you can feel that there all the bubbles are gone. Diesel Fuel Injection Pumps: 12 Months, Unlimited Miles/Hours If you are working in a dusty ambiance, the replacement should be more frequent. Generally, when the four-wheel-drive lights are on, it indicates that the drive is engaging correctly. Read on to learn more about the common problems of these otherwise great tractors. (Explained for Beginners), The tractors are economical in the long-run, Versatile machines, useful for construction, landscaping, and farm works, Possible charge pump and drive motor issues, Tires may be problematic on some surfaces. And according to reports, this complaint was not only about the 2015 versions, but also included the 2018 versions. The fuel control valves in these injectors are very small and any amount of debris in the injector can get lodged in the control valve and cause problems. Engine issues, hydraulic pump issues, contaminated fuel all of these are the common problems. However, it is usually best to dig deeper to discover likely issues that may crop up if you choose to buy one of these tractors. If this is the case you just need to clean or replace the filter. To do that you will need to pull off the PCV tube. The switch or glow plug relay can need replacement too. According to most customers, the Bobcat T590 is a great compact track loader for loading and unloading tasks. Whether you need to clean the injector, take it to a dealer, or replace it, it's a fairly simple process to remove a fuel injector from a Doosan Bobcat engine. The brand employs top-notch manufacturing techniques, yet the tractors are reasonably priced. They are left with only one quick option, and thats using improvised methods in an attempt to fix the problem. If you fail to do this, the filter can get clogged and defective resulting in contaminated fuel and faulty engine performance. **Note: Unless otherwise stated, no labor warranty included**, Join Our Mailing List The hydraulic system can be the source of a lot of issues in your Bobcat t590 compact track loader. In such situations, you can do a couple of things, such as adjusting the sheave width on your secondary CVT to get proper belt diversion, or you can simply replace the belt. One particular user even mentioned that he was constantly having gear shifting issues and he even experienced very rough shifts when the gear originally shifted. So wear gloves and safety goggles while performing this check. ). The bearing also seems not to last as expected. The company also acknowledged that the exhaust header pipes were faulty or not assembled accurately, and this was a factory malfunctioning issue caused by a lack of attention from their production unit. There may be several reasons why you might need to remove an injector. This procedure will lessen the chance of trapping air in the filter. Keep in mind that the pinouts are model-specific, so check the Bobcat loader's manual to determine the compatible pinouts. While this is a good thing since it allows for a smoother ride, tires with too much air can reduce the tractors balance. Thats why the users are also happy with this track loader. Please remember that unless you need to take out all 4 of the injectors, we recommend only removing the ones necessary to prevent damaging fuel lines. 721 Bobcat Injector Pump Shimming Gaskets, Problem with joystick buttons Bobcat S175. Some bobcat 3400 owners have also complained about their encounters where the four-wheel-drive does not engage property even when the four-wheel-drive lights are on. The Bobcat D24 and D34 injection pump for these engines is extremely sensitive to fuel contamination. Also, note that experts suggest engaging and driving the four-Wheel Drive for a while once a month to keep it clean and active. Consumers noticed that their vehicles exhaust header pipes were cracking and had the potential chance of extreme burn or fire hazards. Does it have a pickup filter of sorts? If the fuel cannot flow properly from the tank to the fuel injector, the engine will lose its ability to run powerfully. Bobcat tractors rank among the highly-rated tractors in the market. What this means is having the trim code loaded into the Bobcat equipment ECM is important for proper engine operation. We sell a wide range of parts including the. Despite all these features, Bobcat 3400 still has some technical downsides because of which consumers can encounter some common issues while riding this. Please accept the core charge before adding to Cart. When this happens the rubber primer bulb in the fuel line . Next, remove the hold down. While this may work in a few cases, it is only a temporary solution and will ultimately lead to more problems. Thats because the clogged filters will push the hydraulic into the motor and mix everything up. One of the major issues with Bobcat tractors is difficulty in getting parts, especially for rural dwellers. 5 Most Common Problems with Tracker 800SX, 6 Most Common Problems with Can-Am Maverick Sport, 5 Most Common Problems with Polaris Ranger 66. Big snow chains on front tires only: is there slip between front and back wheels to allow for the now larger dia front tire. After starting it ran well for about 15 minutes or so and then began to repeat the power loss symptom, I jumped out, opened the back door and fiddled with the rear pipe while the engine was running.the engine came good. See our core policy by clicking return policy at the bottom of the page. We get asked frequently about whether the inlet metering valve can be checked on the equipment. Related Article:Are Bobcat Tractors Any Good? Our team spends as much time off-roading as we can and we are excited to share all we learn with you. Oil thinning, which can lead to catastrophic engine failure. Many users change the oil after 500 hours of use and carry out other routine maintenance to the best of their ability. Restore performance to your Doosan Bobcat D18 and D24 Tier 4 diesel engine with the brand new 7275454 Delphi fuel injector. D34 Fuel Injector: 7261663 Bobcat Doosan D34 Fuel Injector