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Date:         Wed, 19 Mar 2003 20:10:37 -0500
Reply-To:     sleepingmonkey1 <sleepingmonkey1@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         sleepingmonkey1 <sleepingmonkey1@JUNO.COM>
Subject:      Re: Hesitation problem (Advice needed)
Comments: To: Kenneth Wilford <kenwilfy@COMCAST.NET>
Content-Type: text/plain; charset="iso-8859-1"

just reachin for stuff for ya ken. I know you helped me man. maybe the throttle switch is a bit out a wack? ----- Original Message ----- From: "Kenneth Wilford" <kenwilfy@COMCAST.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Wednesday, March 19, 2003 5:36 PM Subject: Hesitation problem (Advice needed)

> I am having a problem that is driving me crazy. I recently got a '90 > Vanagon in for head gasket replacement. It had broken down on the road and > the customer had it towed here. I looked it over and found that it needed > head gaskets, and when I pulled the heads, I saw that they needed to be > replaced as well. The van also got a new exhaust system (used old cat and > oxygen sensor). I did all of these repairs and everything went well. I put > on brand new AMC heads, new gaskets, new distributor cap and rotor, new > plugs, new temp II sensor, new thermostat and housing, and a bunch of new > hoses. > > Now that everything is back together everything is working great except for > one very annoying problem. The van hesistates very badly from a standing > start to about 15-20 mph. After that there is no hesistation and the van > runs smooth and goes down the road smoothly. It feels like one of the > cylinders is intermittantly firing and not firing and then finally kicks in > like a turbo boost after you get over 15-20 mph. I checked all of the plugs > and they look fine (they are new). I checked the valve adjustment and set > all of the valves to zero lash (just touching). I swapped in a known good > ECU from another van and this actually stopped a racing idle but didn't fix > the hesistation problem. When the van is idling, it idles a little funny > too. If you sit and listen to it, it goes from what I would call a "normal" > (kind of loping for the Vanagon) to a more of a machine gun sound > (ta-ta-ta-ta-ta, etc). The machine gun idle sounds to me like one of the > cylinders is intermittantly not firing. I haven't checked compression yet > (I'll do that tomorrow) but you would think that if it was a compression > problem that this would happen at high or low speeds. > > I know it is probably something very obvious but it is escaping me at the > moment. Any ideas? You folks have helped me many times in the past and I > really appreciate it. I try to do the same. Any ideas would be > appreciated. > > Thanks, > Ken Wilford > John 3:16 > http://www.vanagain.com > http://www.strictlyvwauctions.com > Phone: (856)-327-4936 > Fax: (856)-327-2242 >


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