Toyota Corolla Axio 2009 engine starting problem

Asked by Jul 06, 2017 at 03:41 PM about the 2009 Toyota Corolla Base

Question type: Maintenance & Repair

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.

2 Answers

I never feel any lack of fuel pressure during pickup and running. When I start the engine all I heard is cranking sound but engine do not start. The o-ring pops out but the 2 clamps are still locked. That's the peculiar thing. Even I open the pressure regulator and disassemble to check for any blockage but not found. The car millage is only 24040 km. Battery seems ok. I need suggestions to solve this problem.

picture of o-ring pops out.

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