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Date:         Fri, 21 Nov 2003 12:50:01 -0500
Reply-To:     Kenneth Wilford <kenwilfy@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Kenneth Wilford <kenwilfy@COMCAST.NET>
Subject:      Re: Need advice please....
Comments: To: Dan Haydon <DanHaydon@CORNERSTONESOFTWARE.COM>
In-Reply-To:  <00a301c3b040$87af8b50$4501c80a@nashua.corsof.com>
Content-Type: text/plain; charset="iso-8859-1"

I had a customer in here not too long ago. His van kept getting hot and boiling over. We checked fan speeds, etc, but it just seemed like that he was not getting a good flow to the radiator. It would still be not hot (I have an infrared heat gun to measure this with) when the engine was really hot. Basically what we found was that this expansion tank cap was not holding any pressure. His tank behind the license plate would fill up and overflow. We put a new cap on the expansion tank that held pressure and bled the coolant system. Now everything is fine. The coolant system must have pressure on it to raise the boiling point of the coolant. If the coolant boils then you are going to have vapor lock in the coolant system and overheat. Hope this helps.

Thanks, Ken Wilford John 3:16 http://www.vanagain.com http://www.strictlyvwauctions.com Phone: (856)-327-4936 Fax: (856)-327-2242

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf Of Dan Haydon Sent: Friday, November 21, 2003 10:03 AM To: vanagon@GERRY.VANAGON.COM Subject: Need advice please....

Hi there,

I've posted in the past regarding my 91 GL and how all of the sudden it began to both heat up quicker than usual and maintain a higher operating temperature (right above the led light) . So far I've taken it to 2 mechanics and the problem persists. I've replaced the t-stat, checked the radiator for blockage, and flushed/bled the coolant system. The fan is working fine too.

The last mechanic said he checked the coolant reservoir for escaped gases and did not seem to think that this is the problem. I find that hard to believe though, since I can't think of any other reason why "all of the sudden" my van heats up quickly and maintains a higher temp. I'm not leaking coolant and other than this the motor sounds good...

My questions are these: Is it plausible that all of the sudden my temp gauge would start behaving differently to make it look as if I'm running hotter? and, does anyone else out there with a newer van experience a quick heat-up, then operate on the high end of the coolant temp sensor? I've heard that maybe a new expansion cap fixes things of this nature.....

I am at a loss for what to do and would hate to have to drive the Vanimal off a cliff....please help!!!

Dan Haydon Denver, CO


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