CAT CP 2120 Vibration

[MEP001]

If your rinse solenoids are still there and working, the pulsation will stop when you switch to rinse. That would indicate either cavitation from the check valve being stuck closed or loss of pressure from a leak somewhere letting the pump pull air. Neither of these would produce the consistent pulsation like your video shows.

 

[I.B. Washincars]

I agree with Randy. Pull the head and remove the seals. It’s probably already washed out. Don’t just throw a set of seals in it, hoping for the best. If you want to waste $75 I’ll send you my PayPal address.

 

[stampedecarwash]

UPDATE: PROBLEM FIXED. It was one of the high pressure seals. As you see in the pic part of the seal was gone.

 

[stampedecarwash]

I agree with Randy. Pull the head and remove the seals. It’s probably already washed out. Don’t just throw a set of seals in it, hoping for the best. If you want to waste $75 I’ll send you my PayPal address.

The head didn't look bad. I didn't see any wash out signs, except for where the high pressure seal sit. I did change the seal and it all good now but it might come back.

 

[Randy]

The head didn't look bad. I didn't see any wash out signs, except for where the high pressure seal sit. I did change the seal and it all good now but it might come back.

Your staving the pump for water or your sucking air into the pump for the seal to disintegrate like. I hope you replaced all of the seals, high and low.

 

[stampedecarwash]

Your staving the pump for water or your sucking air into the pump for the seal to disintegrate like. I hope you replaced all of the seals, high and low.

Yes changed all seals.

 

[I.B. Washincars]

I didn't see any wash out signs, except for where the high pressure seal sit.

Well, that's pretty important.