Lexus Maintenance and Cleaning Throttle Method of Lexus Maintenance and Cleaning Throttle

1. Clean the accelerator and prepare tools such as wrench, socket screwdriver, clean cleaning cloth, grease-proof gloves for wet cloth and rubber gloves. Special throttle cleaner or ordinary carburetor cleaner, a can of temperature-resistant liquid lubricating oil, and a container for screws.

2, cold car or normal flameout parking. Open the engine room cover with gloves, unscrew the bracket screw to remove the bracket, and unscrew the front and rear screws to remove the battery. At this time, you can turn on the light again and discharge the residual electricity. First, clean the nozzle sub-interface of the throttle valve with a wringing wet cloth to prevent dust from entering the engine during disassembly. Just remove the middle hard hose connecting the throttle. The left side of the hard hose is fixed with a very slender cross screw and an annular clamp and hose. Please note that there is a screwNo. 13 is fixed on the cylinder head at the lower left of the hard hose. This position is too obvious and should be removed first. The lower end of the right side is connected with the throttle valve through two annular clamping screws. After loosening the corresponding screws, you can slowly fade out. Take it out slowly from right to left as far as possible. Pay attention that the clamp can be directly tightened on the pipe without falling off. If the inside of the pipeline is dirty after removal, you can spray a proper amount of cleaning agent to wipe it clean. At this point, you can see the throttle closed.

At this time, you can press the throttle with a brick, and the throttle can be opened. This place should be plugged with a clean cleaning cloth in time. If any foreign matter falls into the engine, the consequences will be extremely serious. Be careful! ! The throttle valve is fixed to the engine with four 12 screws. Two hoses on the left side and one hose on the right side of the idle wiring plug. Theoretically, the throttle can be removed completely. First push the throttle lug to the left, loosen the cable and take it out.

4. Because the two rubber pipes on the left side are really difficult to disassemble when the car is running, I decided to give up the full disassembly after several thoughts. Loosen the four screws with 12 ring wrench or socket wrench and take them out. Turn it all first, and then loosen it diagonally. Turn the throttle clockwise and remove the idle solenoid valve with a small Phillips screw. These two screws are very small. It is strongly recommended to use a strong magnetic short cross screwdriver to prevent them from falling. The screws removed from the above are regularly placed in the storage containers prepared in advance. Work must be organized. Then put on rubber gloves and wrap them in clean chemical fiber cleaning cloth. If the throttle cannot be completely removed, it is not recommended to spray the cleaning agent directly into the throttle, mainly because the dosage is not well controlled and will flow into the engine. Spray more and gently wipe on the cleaning cloth. Wipe both sides. Watch out for dead ends. In particular, the installation and connecting holes of the idle valve should be wiped clean. The metal head and spring of the idle valve must be wiped clean. The so-called cleaning the throttle is to wash the cover and idle motor. The black substance wiped off by the cleaner is the carbon deposit that destroys the car. Wipe it carefully twice and it will be clean. Then pay attention to dropping high-temperature resistant liquid lubricating oil on the rotating shaft of the throttle plate. It is operated with a toothpick dipped in oil. After all, the degreasing effect of cleaning agent is too strong, in order to avoid being too dry after washing and lack of oil lubrication to protect the throttle function. It has been suggested that the phenomenon of idle speed rising after throttle cleaning may be related to this.

5. Install the idle solenoid valve in turn and tighten the four throttle screws diagonally. Tighten the throttle line. Install the middle section of the air return pipe, tighten the left 1 right 2 clamping screw, and tighten the left lower bracket screw. Install the battery.

6. Finally, after checking that it is completely fastened, use the initialization method of online copying to switch cars. Turn the key to second gear and don't start the engine. Don't step on the accelerator for 30 seconds, turn the key back for 30 seconds, turn the key to second gear, and step on the accelerator for 30 seconds. Turn the key back for more than one minute before starting the engine. You can do it several times before ignition.