What we check when car starting problem||how to solve car starting trouble

Diagonosis

Today have a problem car normal start and run and when vehicle coolant tempareture high and electrical fan on this situation vehicle knocking and off how to fix this problem?

We checked the vehicle totally as per manual first check vehicle air filter condition,next all vacuume hosses which are fitted on brake booster to tappet cover,tappet cover purge control valve to MPFI (Multi point fuel injection) system and which are fitted in pcv valve side ,it's ok condition no air leakage on this pipe,next check throttle valve condition,we see throttle valve have a more dirt perticle insode,so we first clean them,and next check igniation on and accelerator padel full close and full open condition throttle valve angle geometry ,next check Electric  throttle valve resistance and check pcv valve resistance it's ok condition next check the fuel pressure fuel pressure ok but we also check the fuel filter condition,filter condition are bad so I replace the fuel filter and check the car in test drive and finally the problem out
This type of problem is more on a petrol car and main reason is most time fuel filter and pump so if u you face on a same situation check the system this way ..... 🚙
Vehicle have a more problem need a diagnosis in best way for good result
See auto tutorial.....

Next diagnosis about fuel sediment light glowing on vehicle cluster meter 

We checked first fuel filter sight where sediment coupler fitted on,we check and found fuel sediment coupler sight wiring cut for fuel sedimental light glowing but of wiring is ok condition first check fuel filter condition if bad /poor quality fuel enter the system then fuel sedimental light glowing ,if fuel is mixed with water first replace the fuel filter and next clean the fuel tank frequently it necessary

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