My secondary leakage saga.. - ZR-1 Net Registry Forums

madmatster · 11-10-2021

My pump was cycling on and off every couple of seconds so i decided to remove the plenum to identify where i was leaking so much.

My leak down was coming from the solenoid. I put a gauge to every line and have no leaks. When vacuum is applied to the inlet of the solenoid, pressure is built, and then slowly leaks down.

I decided to replace the solenoid. I have ordered several GM 214-358, and EVS33, and they all leak. Some won't hold a vacuum at all. Some leak until the actuator is activated and the secondary's open up, and some leak all of the time.

I've read that as long as the pump isn't running more than one time every two seconds, i won't throw a code. I'm really looking to get it to run a lot less though.

Outside of the brackets on these things, they appear to all be the same part. I have 2 more 214-358's coming and i'm hoping one of them will be pretty good.

i've taken one of these apart- its really just a plunger in a cylinder.

anyone else have any issues with the solenoid leaking like this???

11-10-2021	#1
madmatster Join Date: Aug 2017 Location: NJ Posts: 11	My secondary leakage saga.. My pump was cycling on and off every couple of seconds so i decided to remove the plenum to identify where i was leaking so much. My leak down was coming from the solenoid. I put a gauge to every line and have no leaks. When vacuum is applied to the inlet of the solenoid, pressure is built, and then slowly leaks down. I decided to replace the solenoid. I have ordered several GM 214-358, and EVS33, and they all leak. Some won't hold a vacuum at all. Some leak until the actuator is activated and the secondary's open up, and some leak all of the time. I've read that as long as the pump isn't running more than one time every two seconds, i won't throw a code. I'm really looking to get it to run a lot less though. Outside of the brackets on these things, they appear to all be the same part. I have 2 more 214-358's coming and i'm hoping one of them will be pretty good. i've taken one of these apart- its really just a plunger in a cylinder. anyone else have any issues with the solenoid leaking like this???