[introduction]
Of fuel store be closely bound up of quantity and our add boat course of development, oily watch is a pair of eyes of driver observation oil level. Once oil expresses occurrence breakdown, indication error. Very easy incur loss through delay our cheer an opportunity. Bring about car to anchor thereby the problem appears. Bring about as a result of breakdown of oil level sensor change the case common occurance of oil pump. To avoid by hole, experienced worker teachs today teach you how self check.
30 seconds fast read content of full text key:
1, oil level sensor is designed together with oil pump, disassemble so sensor is about to disassemble gasoline pump.
2, gasoline tank sucks hold back, knock against to be able to bring about oil pump be out of shape, affect oil level to show accuracy thereby.
3, use avometer can measure stand or fall of oil level sensor effectively.
One, the installation position of oil level sensor
Sensor of most oil level is with electric fuel pump the design is together. And oil pump is installed in gasoline tank upside. Want to find oil level sensor to need to find electric fuel pump first so. And disassemble electric fuel pump can get off smoothly oil level sensor.
[disassemble note]
To oil pump disassemble we should notice two detail mainly. The first condition that should assure oil pump sealing ring namely is good. Besides, still have the accurate place that remembers before disassemble oil pump is installed. If the angle of installation changes, cause oil level sensor very easily to show an error.
2, the working principle of oil level sensor
Oil level sensor can realize the in suspension in oily fluid through the float of carburettor float. And carburettor float drives batch of staff, dial lever to drive resistor sensor, implement the change of resistor. Give appearance to transmit oil level signal thereby, combine what appearance changes electronic signal into pressing with a finger to swing. Hint thereby the driver is current oil level position.
3, what circumstance causes damage of oil level sensor easily.
1, gasoline tank is out of shape
Gasoline tank is bumped by outside force is very easy appear be out of shape. And once plastic gasoline tank is out of shape will browbeat directly later the fixed position of oil level sensor, cause the mechanical damage of oil level sensor thereby.
2, fuel quality problem
Fuel quality is too poor, contain colloid, impurity to bring about oil level sensor very easily to slide resistor appears the situation with bad contact, cause indication error thereby.
3, of active carbon canister jam
Active carbon canister basically is to be in charge of filtering the fuel vapour of fuel box interior. If active carbon canal jams, will bring about gasoline tank oil when fluid is outward and draw-out, fill without air gasoline tank. Cause gasoline tank to attract hold back issue. And what oil pump will bring about after gasoline tank attracts hold back is serious be out of shape, cause oil level to show an error thereby.
4, the examination of oil level sensor
1, contact of examination wiring harness is regular
Disassemble the line that has a sensor can see after oil pump. We should check wiring harness outlet to whether shake a contact above all undesirable
2, the hand is moved adjust carburettor float position to check oily watch
After disassembling oil pump, after inserting electrify source outlet, open ignition switch. Sensor of mobile oil level falls on us right now, examine condition is moved to issue oily watch to whether show normally in the hand. If normal, can eliminating is breakdown of oil level sensor. If oil level is unusual, change new sensor examines breakdown to whether disappear.
3, of avometer detect
Use avometer undertakes checking to the slip block value of oil level sensor, since be called slip resistor, transmitting signal with respect to the delegate is the electronic signal with through the change of resistance different generation. We use avometer to be able to be examined easily have a sensor each positional block values are normal.
[low fluid]
Will slip resistor is placed in sensor most lower part, the resistance that can see the avometer when coming here is in the largest position. Right now oily watch shows initiative position is expressed in oil.
[intermediate fluid]
Slide oil level sensor intermediate position, right now the resistance of avometer produces change. This also is being represented right now oily watch also will undertake rising.
[tall fluid]
Write finally:
Through above a few kinds check a method, we can conclude whether breakdown is oil level to sensor damages and be brought about basically. And learned these very good also avoid to be maintained greatly by maintenance shop small issue. Calculate you to did not start work ability, know these to check train of thought, also the maintenance process of can very good supervisory maintenance technician, did you learn?
