smc pump failure

[johnz]

I was getting 10 degrees of knock at 19 lbs of boost on the alky.Pushing the test button on the controller would make the car stumble so i thought the pump was fine so i proceeded to take the braided line off the bottle and press the test button and no alky comes out.The pump makes a whinning noise.Could the voltage from pressing the test button cause the car to stumle! thanks John!

 

[RobR]

Yes. This same thing happened to me last year. I thought the pump was working because the car would almost stall, but still lots of knock. Took the hose off and no workie.

I called Steve and he said something was probably lodged in there and to run the pump backwards. I tried but still couldn't get it to work. Sent the pump/tank assembly back to Steve and he had it back out the next day. Works like a champ.

Give him a call and he'll take care of you.