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Date:         Mon, 30 Nov 2009 22:03:08 -0500
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: oil buzzer buzzing all the time
Comments: To: Joy Hecht <jhecht@ALUM.MIT.EDU>
In-Reply-To:  <6e95da690911301835l29ab5a44y40f24604881eee8@mail.gmail.com>
Content-Type: text/plain; charset="us-ascii"

Joy, Check the archives for info on the oil warning system. Since it was sudden and consistent you most likely had a wire break or a connection fail to the high pressure oil sender switch. This is the switch located on the rear of the engine, just to the left of the oil pump. Access is easiest by removing the water pump belt and pulley. If the switch should need to be replaced be sure they get you the proper .9bar switch. Most parts books and even ETKA can confuse you make you order the 1.8bar switch. The reason you can idle the engine without the buzzer is the dynamic oil pressure warning system ignores this switch under 2,500 rpm.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Joy Hecht Sent: Monday, November 30, 2009 9:35 PM To: vanagon@GERRY.VANAGON.COM Subject: oil buzzer buzzing all the time

Hi folks,

Matilda's got a new trick. Every time I start to drive, the oil buzzer (the one that lights up the little picture of an oil can) takes to buzzing. Oil level is fine, coolant is fine, there's no apparent problem. It doesn't happen if I sit with the van idling, but as soon as I start to drive (within max 30 seconds) the buzzer lets out a squawk. If I turn off the engine and turn it on again, I get maybe another 30 seconds of quiet, then it starts again.

This just started today, and actually I drove her directly to my friend's mechanic (who has succeeded in fixing other troubles in the past - no real vanagon mechanics less than 100-or-so miles from here). We figured it's something about the oil pressure switch or associated wires - he's going to do some searching and get back to me.

But I'm wondering if others have had this happen, and if you've got suggestions.

Joy


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