I'm sure most pretty savvy vanagon owners have a known-good spare
distributor to try.

changing the Hall Sender inside the distributor is a little tricky.

On 5/11/2012 5:29 PM, Chris S. wrote:
> I second the Hall Sender as the culprit. Swap with a known good one to test. Got a friend with a Vanagon?
>
> Chris.
>
> Wysłane z iPhone'a
>
> Dnia May 11, 2012 o godz. 18:04 Scott Daniel - Turbovans<scottdaniel@TURBOVANS.COM>  napisał(a):
>
>> Hi,
>> I have read that the tests in Bentley on a Hall Sender are not that
>> definitive.
>>
>> I like to have 5 good reasons to change a part ...like want to be sure
>> it's really needed ..
>> on this one 2.1 waterboxer though ..
>> we just had to go with new Hall Sender finally ..and that was it.
>>
>> scott
>> www.turbovans.com
>>
>> On 5/10/2012 10:54 PM, Robert Fisher wrote:
>>> Thanks, I'll try that. I've been leery of the hall sender since the phantom
>>> no spark episode a while back... It tested out ok according to the tips and
>>> tricks that I gleaned from the list, but I've wondered about it all along.
>>> I have no idea how old it is. I have another one that I can try if it
>>> warrants it. I'll do the troubleshooting according to Hoyle tomorrow and
>>> see what that gets me. I just jumped to the pump since it obviously wasn't
>>> functioning normally in situ.
>>>
>>> On Thu, May 10, 2012 at 9:44 PM, Scott Daniel - Turbovans<
>>> scottdaniel@turbovans.com>   wrote:
>>>
>>>>   here is a very nice super simple fuel pump 'power to it' trick.
>>>> requires only one tool..
>>>> a small screw driver or even a paper clip.
>>>>
>>>> don't even need the keys for the van.
>>>> this is to run the fuel pump ..
>>>> downstream of all relays and switches that control it.
>>>> as a test.
>>>>
>>>> open rear hatch,
>>>> remove engine cover lid
>>>> remove cover from relay box on left side.
>>>> the Fuel Pump relay is the right one.
>>>> ( heck ..a body could use this trick to pump old gas out of a parts van
>>>> say ..before that gas gets too old ) .
>>>>
>>>> jump, with your small screw driver the top wire and the very bottom wire .
>>>> ( this routes Batt voltage on the red wire, to the double white wire on
>>>> the bottom ) .
>>>>
>>>> if that makes your FP run ...and your fuel pump  doesn't run  otherwise
>>>> when it should ..
>>>> you can figure the fuel pump , the wires, and its ground are working.
>>>>
>>>> on one 2.1 waterboxer  I dealt with ..
>>>> intermittent no-start.
>>>> you could also drive it 9 miles with no problems..
>>>> but then ..intermittently ......wouldn't fire up, no ignition.
>>>>
>>>> that one turned out to be a Hall Sender in the distributor.
>>>> New one of those fixed it very nicely.
>>>>
>>>> scott
>>>> www.turbovans.com
>>>>
>>>> On 5/10/2012 7:53 PM, Robert Fisher wrote:
>>>>
>>>> Here we go again. Van had been running normally for a while after fixing
>>>> (?) my no-spark issue. Then (much later) it began to have little
>>>> hesitations; a very brief, but seemingly complete loss of power while
>>>> driving. It never killed the engine- sometimes it didn't happen at all,
>>>> sometimes it happened a lot. This kept up over several tanks of gas. It
>>>> usually only happened after the first mile of driving if it was cold, but
>>>> once or twice happened almost immediately after taking off. We couldn't
>>>> work out a consistent pattern. If anything it seemed to happen the most
>>>> when driving on a north/south road. Go figure.
>>>>
>>>> I ran it with and without the O2 sensor, no change. I checked a bunch (but
>>>> not all) of the wires and grounds. Nothing obvious jumped out. Eventually
>>>> it tapered off and just quit doing it; neither of us has noticed it for
>>>> more than ten days. This is my only daily driver at the moment so it's hard
>>>> to get any decent block of time to troubleshoot.
>>>>
>>>> Well I have all the time I can find now 'cause it stopped running again. My
>>>> wife drove my daughter to school at oh-dark-thirty for a field trip; the
>>>> van ran absolutely normally. When she got back in it to come home, it
>>>> cranked but wouldn't start. When I got to the van I looked it over for the
>>>> usual suspects I didn't see anything obvious so I tried to start it. I
>>>> immediately noticed the lack of 'buzz' from the fuel pump. No vibration at
>>>> all when the key is turned to first position or when cranking. Put the
>>>> meter on it and got no voltage, so we dragged it home.
>>>>
>>>> I pulled the pump and put 12v to it. It spun up, no unusual noises or other
>>>> noticeable issues. I ran it in reverse for a few seconds just for GP, all
>>>> seemed well so I put it back in. On having my wife crank the van there was
>>>> no voltage again with the key in first position, but I got 10.~ volts when
>>>> cranking. However the pump didn't feel like it was running and of course
>>>> the van didn't start.
>>>>
>>>> I'm going to go through the Bentley and try some of the tips in this thread
>>>> tomorrow; I'm just running out of daylight now and I wanted to get this
>>>> written down before I forgot something.
>>>>
>>>> Anything jump to anyone's mind for when I get back on it?
>>>>
>>>> TIA,
>>>>
>>>> Cya,
>>>>
>>>> Robert
>>>>
>>>> '87&   '86 2.1/Auto GLs
>>>>
>>>>
>>>>
>>> --
>>> Cya,
>>> Robert
>>>
>>> '87&   '86 2.1/Auto GLs
>>>