Toyota Corolla Axio 2009 engine starting problem
I am in a big trouble and need your assistance. I have a strange problem facing in Toyota axio 2009 car (part no. of fuel pump assembly Denso 77020-12650). It is peculiar. If I drive my car more than 1 hour, o-ring at the head of pressure regulator inside fuel pump assembly comes out from its position, engine will not start. If the engine is running no problem. It happens when I stop the car and start again after some time. I have to open the fuel pump assembly and push o-ring inside otherwise engine do not start.
I have some picture for clear understanding.
I have already open the pump assembly once and re assemble, even the o-ring seems Ok in quality.
Any body have any idea how to solve this? Auto Technicians in my area fails to solve this problem.
Please help me.