1984 4k - no start

[L DC]

Check the hall sender connections at the distributor. If is loose, engine vibrations would be enough to cause intermittent failures.

In one of my VW QSWs (same engine and tranny- JT code- as in 4KQ) the plastic wheel inside the distributor broke, causing it to completely fail--no spark. It happened at a gas station right after filling the tank. I started the car and everything went dead 5 seconds or so later.

In any event, $175 just for the hall sender is ridiculous. You could get a whole rebuilt distributor for as low as $85 plus free shipping from e-Bay.  As with any purchase on the internet, especially automotive parts, make sure you contact the seller to make sure they send you the correct part. 

http://tinyurl.com/l6kvo7

-Regards,

-Louis


> From: Bares, Vittorio <Vittorio.Bares at nuance.com>
> Subject: Re: 1984 4k - no start
> To: jlagnese at massed.net, quattro at audifans.com
> Date: Tuesday, August 4, 2009, 3:22 PM
> Don't have a bentley for the 4k. I'm
> in s.NH. Would love to borrow 1 if u'r close by.
> 
> ________________________________
> 
> From: jlagnese at massed.net
> 
> To: Bares, Vittorio; quattro at audifans.com
> 
> Sent: Tue Aug 04 13:18:56 2009
> Subject: RE: 1984 4k - no start 
> 
> 
> I just plugged in another. Do you have an extra? If not,
> where are you? You could borrow one of my extras. I do have
> a few known working units. They are the same on quite a few
> VW/Audi. This went south on my 87 16V Scirocco. I actually
> used one from a 91 Jetta IIRC.
> 
> I'm sure that the Bentley has a way to check.
> 
> John
> ---- Original message ----
> 
> 
>     Date: Tue, 4 Aug 2009 12:25:43 -0400
>     From: "Bares, Vittorio" <Vittorio.Bares at nuance.com>
>     Subject: RE: 1984 4k - no start
>     To: <jlagnese at massed.net>,
> <quattro at audifans.com>
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
>     
> 
> 
> 
>     How does one test that?
> 
> 
>      
> 
> 
>     Also, there was a suggestion to check
> the
>     12v at the coil – coil has 4 wires
> (2-green on one side, 2 black on the
>     other connector) – which ones deliver
> 12v to the coil? (they look awfully
>     thin)
> 
> 
>      
> 
> 
> 
> 
>     Vittorio -
> 
> 
> 
> 
> 
>     
>     
>     
> ________________________________
> 
> 
> 
> 
> 
>     From:
>     jlagnese at massed.net
> [mailto:jlagnese at massed.net]
> 
>     Sent: Tuesday, August 04, 2009
>     11:48 AM
>     To: Bares, Vittorio;
>     quattro at audifans.com
>     Subject: Re: 1984 4k - no start
> 
> 
> 
>      
> 
> 
>     Check the spark control unit. Its
> piggybacked on the computer.
>     ---- Original message ----
> 
> 
>     Date: Tue, 4 Aug
>     2009 10:42:59 -0400
>     From: "Bares, Vittorio"
>     <Vittorio.Bares at nuance.com>
>     Subject: 1984 4k - no start
>     To: <quattro at audifans.com>
>     >So, has new wires, rotor, cap, plugs
> - was running fine - then about a
>     >week ago, while driving it - it just
> stopped running.
>     >
>     > 
>     >
>     >I cleaned the contacts on the coil -
> started again, but wasn't running
>     >well. Almost as if it was running on
> 4 cyl (it is a quattro 5cyl :-)). I
>     >was trying to diagnose by pulling
> one sparkplug at a time while it was
>     >running, not much change when I did
> so - consistently for all 5 plug
>     >wires.
>     >
>     > 
>     >
>     >Pulled the plug on the temp sensor
> in the rear of the head - no diff.
>     >
>     >Pulled the plug on the sensor that
> is on the fuel distributor - no diff.
>     >
>     > 
>     >
>     >This morning - no start...
>     >
>     > 
>     >
>     >No spark.
>     >
>     > 
>     >
>     >I'm thinking hall sensor??
>     >
>     > 
>     >
>     >Vittorio -
>     >
>     > 
>     >
>    
> >_______________________________________________
>     >quattro mailing list
>     >http://www.audifans.com/mailman/listinfo/quattro

>     >http://www.audifans.com/kb/List_information

> 
> 
> 
> 
> 
> 
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