

| Subject: | Re: more information on engine swap/fuel pump woes |
| From: | Robert Fisher |
| Date: | Thu, 10 May 2012 22:54:39 -0700 |
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
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