I have been fighting knock on my car for a while now. Checking coil/module, plugs, plug wires, changed out fuel pump, etc... Could not get it to go away even when adding tons of fuel via chip. I am posting this to let you guys know that the alky pump needed to be changed. Mine went for 4 years and because I was not logging pressure and assuming:redface: it was working good, I never started to even look in the direction of the pump itself. After so many years the integrity of the pump to pump high pressure is gone.
As per good advice form Julio(and TURBO6) I will be replacing my alky pump every year from now on. I can tell you the car feels like a wild animal with a new pump and no knock. I also installed one of his new 2 1/16 alky pressure guages on my pillar. A very trick piece with a highest pressure recall button. Even changes background colors when the alky comes in. Very nice!
This thread is just a reminder for you guys with pumps 2 years or older. Change it out. Good insurance to have instead of pulling heads and changing headgaskets.
Julio thanks again for the advice and input along with great products and customer service. The pressure is guage is pegging 150psi...I guess thats where it needs to be be right?
Ed
As per good advice form Julio(and TURBO6) I will be replacing my alky pump every year from now on. I can tell you the car feels like a wild animal with a new pump and no knock. I also installed one of his new 2 1/16 alky pressure guages on my pillar. A very trick piece with a highest pressure recall button. Even changes background colors when the alky comes in. Very nice!
This thread is just a reminder for you guys with pumps 2 years or older. Change it out. Good insurance to have instead of pulling heads and changing headgaskets.
Julio thanks again for the advice and input along with great products and customer service. The pressure is guage is pegging 150psi...I guess thats where it needs to be be right?
Ed