I would look for more vacuum leaks and try to set the idle per procedure first. 

Wysłane z iPhone'a

Dnia 11.11.2015 o godz. 21:26 thewestyman <zolo@FOXINTERNET.NET> napisał(a):

> Found the Screaming sound; vacuum leak under the inlet pipe.  Apparently, I
> have left a piece of the old gasket's paper on it.
> But first I took off the belts to see, and when it was still going, I took
> off that double pipe and fixed it.
> 
> Now, I'm wondering why the engine is pulsating as it's idling.  Would I need
> to use a different ECU?  Raising the idle is not helping so far.
> 
> Thanks to all,
> Zoltan
> 
> 
> 
> -----Original Message-----
> From: Stuart MacMillan
> Sent: Wednesday, November 11, 2015 5:24 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Screeming sound
> 
> Hi Zoltan,
> 
> Loose belt?  I doubt it's a bad pump, that would be a real bummer.
> 
> Stuart
> 
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> thewestyman
> Sent: Wednesday, November 11, 2015 4:40 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Screeming sound
> 
> Hi to all,
> 
> I have just put an older engine in with new water pump, into a 1.9 van.
> Although not immediately, but very soon a high pitch screaming sound is
> coming from the left side.  I’m suspecting the new water pump, but someone
> else would say otherwise.  Any ideas?
> Zoltan