Re: [DML] Dwell meter readings + possible vacuum leak

[Jeremiah Montee <angelito03299@xxxxxxxxx>]

It could be a loose/rotted hose on the "coal canister"
that is located in the left side of the engine
compartment.  There is a little square held in by 11mm
bolts.  Take that square part off and look on the coal
canister; there are 3 ends - 2 of them utilize hoses. 
The third is appropriately labeled "carb", and since
our stock DeLoreans don't utilize a carburetor, there
should be a rubber end on that connection.  If the
rubber is cracked, brittle, or just plain NOT THERE,
that could be a huge vacuum leak.  It can happen,
believe me, I found out one afternoon just taking the
time to look - found that it was completely rotted
out.

Jeremiah

 
> Now; I can hear this hissing sound on the driver's
> side of the 
> engine. Listening through a piece of PVC pipe the
> sound seems to 
> come from the hose that runs between the cold start
> valve and the 
> idle regulator.  I removed the hose and it is fine
> but the sound 
> persists! I originally though that the leak was
> coming from the tube 
> that runs into the mixture control unit. Any ideas?



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