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Date:         Sat, 22 Jan 2005 11:48:40 -0600
Reply-To:     Jim Felder <felder@KNOLOGY.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jim Felder <felder@KNOLOGY.NET>
Subject:      Re: Runs great--for a minute or two ??
Comments: To: Ken Wilford <kenwilfy@comcast.net>
In-Reply-To:  <41F28AA3.4060405@comcast.net>
Content-Type: text/plain; charset=US-ASCII; format=flowed

Ken,

I'm going to try that. While I was waiting for an answer from list (and thank you very much by the way) I went out and looked around at the general condition of the wiring to see if anything was loose or improperly connected. I found that the brown wire that comes up from under the engine and past the distributor (Temp II?) was crushed under a corner of the AC bracket and so was shorted to the block. I yanked the AC bracket, repaired the wire, and started up. The poor running symptoms reappeared after a minute or two.

What do you think? I'm going out to unplug the O2 sensor now.

Thanks,

Jim

On Jan 22, 2005, at 11:17 AM, Ken Wilford wrote:

> Unplug your oxygen sensor and see if it helps. Also you can trick the > computer into thinking that the tempII sensor is good by unplugging it > and using a short piece of wire to bridge the two prongs that are > inside the plug to each other. If you do this then the computer will > think that the van is warmed up and it will run well without the > sensor. You may have to hold your foot on the gas when the van is > cold until it warms up but after that it will run fine. If it runs > better when you unplug the oxygen sensor then that is bad. Or if it > runs better after you bypass the Temp II sensor (blue plug on > thermostat housing) then the TempII sensor is bad. Darrell Boehler > gave me the TempII trick and it worked like a charm for me. As always > we have oxygen sensors and tempII sensors in stock if you need them. > > Hope this helps, > Ken Wilford > John 3:16 > www.vanagain.com > > Jim Felder wrote: > >> I know this problem has been discussed recently on this list, and as I >> remember it has to do with one of the temp sensors. >> >> I just installed new head gaskets. So far no leaks, started right up, >> system bled and the loud clatter from the lifters has gone away. But I >> can't drive the car (very far) because through it runs sweet on >> startup, it starts emitting dark exhuast, runs rough, and soon the >> RPMs >> slow to a stall. I can pull the throttle to keep it running as long as >> I want, but if I don't keep the revs above 2000 or so it chugs to a >> stop. >> >> Turning the key "resets" it to run fine for a minute or two, then the >> symptoms return. It doesn't matter where the engine is in the temp >> range, it seems time-related. >> >> Any help will be appreciated, of course. >> >> Jim >> > > >


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