[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Stalling on the Freeway (revisited)



I think the cold start valve is tested by removing it from the manifold (but do not disconnect the fuel line), then jumper the fuel pump relay to pressurize the fuel system and look at the nozzle of the CSV to see if it leaks/drips. It's just a simple on/off solenoid, might not hurt to test to see if it's "sticky" by also jumpering from B+ to the + terminal of the CSV (use a button-type remote starter switch well away from the CSV, and be careful to contain the fuel spray in a jar or can. Sparks and fuel, ya know...). Bump the button a few times and see if "off" is a nice solid off; no leaks.
 
Karl> Date: Thu, 18 Oct 2007 20:48:40 -0400> From: foxxinabox@xxxxxxxxxxxxxxxx> To: amalventano1@xxxxxxx> CC: scirocco-l@xxxxxxxxxxxx> Subject: Re: Stalling on the Freeway (revisited)> > This sounds like it may be/have been what was wrong. I did an > injector test and they all seemed to spray fine except for the injector > for the #3 cylinder. I swapped the injector with the one from #4 and it > seemed to work out better, with #4 spraying fine using the "faulty" #3 > injector. I replaced the fuel line itself and that was the only > difference between the two and it seems to have fixed the sputtering > above 1/2 throttle. My only guess is that the heat was affecting the > fuel line enough to pinch it close. The problem that I have now is > idling at start and it still runs rich. Is there a way to test the cold > start valve rather than just simply replacing it? Thanks.> > > Another (remote) heat-related possibility is what happened to me a few years ago. The reservoir -> tank (return) line was crimped> > between the tank and the body. On a hot enough day, tank expansion would compress the line and trap air in the reservoir. It would> > build up over time until the main pump was air bound. Having the car off for a few minutes would correct the issue (reservoir> > gravity filled).> > > > What you said about dying when you stopped keyed me in on that, since the main pump draws from the rear of the reservoir - if it's> > mostly air bound, braking immediately sends air into the main pump suction.> > > > HTH> > Al> > > >> -----Original Message-----> >> From: Jean-Claude D?sinor [mailto:desinor@xxxxxxxxxxxx] > >> Sent: Friday, October 05, 2007 9:00 PM> >> To: julie@xxxxxxxxxxxxxxxxxx> >> Cc: 'scirocco list'; Foxx (in a box)> >> Subject: Re: Stalling on the Freeway> >>> >> Hmmmm ....> >> Mine did that to me too a few years back. Turned out to be > >> junk in the gas tank. The filler pipe had rusted and was > >> flaking into the tank. > >> Furtunately, the gas filter stopped most of it.> >> Had the gas tank cleaned and replaced the gas filter, > >> salvaged a filler neck from a parts car me and my godson were > >> sharing, and everything is fine now.> >>> >> Jean-Claude> >>> >> julie@xxxxxxxxxxxxxxxxxx a ?crit :> >>> Sounds like the fuel pump to me. Draco did that a few yeasr > >> ago. I just BARELY made it ove to GAP that day. I changed the > >> pump on the side of the road and had a smooth ride home...> >>> Good luck> >>>> >>>> >>> > >>>> -----Original Message-----> >>>> From: Foxx (in a box) [mailto:foxxinabox@xxxxxxxxxxxxxxxx]> >>>> Sent: Friday, October 5, 2007 06:58 PM> >>>> To: 'Marc Getty'> >>>> Cc: ''scirocco list''> >>>> Subject: Re: Stalling on the Freeway> >>>>> >>>> The starter was turning fine. It was actually how I was > >> able to get > >>>> the car to the side of the road. It's just that the engine > >> would turn > >>>> over and over and not catch. I sat for a half on the side > >> of the road > >>>> and the car started up, got me a few hundred yards, and > >> died again. > >>>> No amount of revving the engine was able to bring it back. > >> I finally > >>>> got it off the interstate and parked it in a lot, let it > >> sit for two > >>>> hours, and when I went back, the outside air was much > >> cooler and the > >>>> car wanted to run like a scalded cat.> >>>>> >>>> > >>>>> It's not clear if the starter was turning and it just not > >> catching > >>>>> or was the starter not turning. Which one is it?> >>>>>> >>>>> -Marc> >>>>>> >>>>>> >>>>> Having to sit in traffic for nearly an hour today the '85 > >> began to > >>>>> stumble and then died. As the traffic was due to an > >> accident ahead, > >>>>> the whole interstate was closed. I tried to start the car and it > >>>>> coughed a couple times but nothing else. The coolant temp > >> never even > >>>>> got about half way. On a whim I yanked the fuse to the > >> fuel pump and > >>>>> let the car dry itself out. After a few more minutes of > >> coughing it > >>>>> finally caught and I was able to go again. Problem is that when I > >>>>> came to a stop the car died again and resumed it's non-starting > >>>>> issue. Mind you, the weather was quite warm today and I > >> don't have > >>>>> these stumbling problems in cooler weather. What could > >> the outside temperature be affecting so that the car would > >> run rich to a fault?> > _______________________________________________> Scirocco-l mailing list> Scirocco-l@xxxxxxxxxxxx> http://neubayern.net/mailman/listinfo/scirocco-l
_________________________________________________________________
Boo!?Scare away worms, viruses and so much more! Try Windows Live OneCare!
http://onecare.live.com/standard/en-us/purchase/trial.aspx?s_cid=wl_hotmailnews