Just hold the soldering tool on the broken one until the solder puddles around it and you're fixed. Along with the bolt, the bracket is hooked with a tag so you may have to wiggle it a bit to free it off or it might just lift straight out. And then I hear a click from the relay and instantly I get fuel pressure and the car starts. The relay works as a conductor in between a low amperage circuit, allowing it to turn a higher amperage circuit on or off. You may freely link to this site, and use it for non-commercial use subject to our. There are two bolts, the bottom one is being removed in the picture.
Bad Main Relay Symptoms It can be difficult for a common car owner to diagnose such issues but there are still a few basic things owners and drivers can check to rule out common problems. Fortunately, you might not have to rush off to a mechanic to check the relay in your Honda. No systems working at all and the key will not release from the ignition. If there is no continuity, replace the relay and retest. I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. What is so special about these classroom case studies? The main relay of an automobile is undoubtedly one of the most important and main components of a car. I've bought some bad reman Alternators some completely dead and Starters bad solenoids in the past.
Alternatively, when the key is first turned to position two, the oil light, brake light, charge light, and other warning lights will not function. That makes me think it couldn't be the fuel pump. After a couple hours I obtained a screwdriver, I took the panel off and removed the main relay. In 20 years of working on Hondas, I've replaced four fuel pumps, and two were aftermarket. Pop it open and see if there are cracks on the solder, you'll have to look real close. I removed the relay again and began touching up the solder joints. If your vehicle is displaying any of the symptoms above, or you suspect that your fuel pump relay is having an an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the component should be.
Extremely cold temperatures can also cause the problem to be more apparent. If at any point the relay fails to click, there could be a problem there. The main relay is usually located underneath the dashboard, inside the fuse-box of the car but it also depends on the make and model of the car: The engine does start As mentioned above, the main relay controls the fuel system. Check the Status of the Switch Normally, when you put the key in the ignition switch and turn it, you will have three positions of ignition status. To pinpoint the exact problem, professional help is required as complex electrical systems can only be checked by certified mechanics with electrical knowledge and experience because a slight mistake could render any of the main electrical parts of a car useless so extra precaution is absolutely necessary.
Failure to act quickly in a situation like this can lead to a lot of instability. It's behind the dash up above your gas pedal. The fuel pump relay is an electronic component that is found on virtually all vehicles equipped with an. Want even more diagnostic training? If you can forgive my soldering work, done through a tiny video camera screen, then you can get an idea of how to repair these relays quickly and easily. Pull one or more of your spark plugs and check to see if they are dry or damp with oil. Most will produce a low volume hum or whine which can be heard from the inside the vehicle if listened for closely, or from the outside of the vehicle, near the fuel tank. Is the replacement starter a re-man? The main relay is usually located underneath the hood in the relay box.
I'm not saying Honda fuel pumps never go bad, but if you suspect a bad fuel pump in a Honda, be sure to check for power on the yellow wire and ground at the black wire at the connector to the fuel pump itself when you turn the key on. A classic time for the problem to occur is at the gas station, or if you park for a minute to get something from a shop. This will make a bit of a mess. Re-installing the main relay back in is the reverse of removal, however getting the bolt back in can be a little tricky. This causes an arcing of the terminals which can melt the insulating base. The past few weeks my car has been having an issue starting.
Knowing how to test a Honda main relay can help you better pinpoint the cause when an electrical issue arises. Reverse connection of batteries normally blow the main fuse first. Bend back one of the retaining clips and lift up one side of the relay, then repeat with the other side. This was not the case. One major sign of a bad ignition switch is that the instrument panel with not light up when the key hits the second position. If your vehicle is having trouble starting, it could be showing signs of a failing ignition switch.
. What is a Main Relay? I'm posting this in all caps because you need to burn this into your brain. Tap the relay Sometimes tapping the relay makes it work temporarily. Can you frickin' believe that?? So I figured, it's not the main relay. I reinstalled the relay and the car started fine.
It controls computer and the whole fuel system of your car. Posted on Apr 29, 2010 Yes, check your plugs and wires. If the , then you will need to get the main relay checked out. Its an extensive and expensive repair. If the main relay fails, it often causes a no-fuel-pressure condition, which leads to a no-start.
I'm the writer and the owner of this website. One of those problems can involve the main relay. The car is now completely dead. When this occurs, the vehicle will jerk quite violently and will not start despite repeated efforts. If there is no continuity, replace the relay and retest.