Date: Tue, 17 Jul 2007 14:41:39 -0700
Reply-To: most david <dmost@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: most david <dmost@YAHOO.COM>
Subject: one more symptom....Re: ECU and starting question
Content-Type: text/plain; charset=ascii
Occassionally, during my routine of turning the key on and off until I hear the fuel pump, I hear what I could describe as a pulsing fuel pump. In other words, I hear a tapping sound from the vicinity of the fuel pump, as opposed to the usual continuous on buzz sound that lasts for a second or two upon turning the key when all's working as normal.
Does this inconsistent symptom point to anything in particular?
Thanks again,
David
----- Original Message ----
From: most david <dmost@YAHOO.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Tuesday, July 17, 2007 2:24:07 PM
Subject: ECU and starting question
I still haven't figured out why the fuel pump gets power intermittently when turning the ignition key. For those of you that didn't read my posts from the last couple of weeks, I've checked the relays, replaced the ignition switch, and tested for power at the fuel pump. When the fuel pump gets power, the engine starts every time and runs well.
A local mechanic is convinced that the ECU is causing the problem based on my characterization of the problem. I asked a second mechanic about this, and he didn't think that this was likely. I then told the second mechanic that I'm able to start the engine by pushing the van and popping the clutch (on those rare occassions when turning the key on and off a number a of times doesn't result in my hearing the fuel pump come on). Upon hearing this, the second mechanic said that he's certain that the ECU isn't causing my problem.
So, if I can start the engine by popping the clutch, does this definitely mean that the ECU is not the source of my intermittent power at the fuel pump upon turning the key to the second (not start) position?
Thanks for the help,
David
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