RE: [DML] a few tech questions
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RE: [DML] a few tech questions

Could be a number of things.

I suggest pulling the line off of the distributor Vacuum Advance to see if 
you have vacuum while idling.  You're not suppost to so this points to 

A bad Vacuum Solenoid
A bad Thermal vacuum switch
A bad Microswitch

This could also point to a bad idle speed motor but I doubt it.  I had 
similar problems on a DeLorean here in NC.  Everything had been replaced but 
the microswitch and the problem persisted with the owner.  I took a look at 
the car and peformed the same tests as you with the same results.  Long 
story short Microswitch.

As far as the battery it could be a number of things but be sure to double 
check all your grounds and make sure they are snug.  I've seen loose 
connections before that only needed a snug and it solved the problem.

Let us know if any of this helps and I will offer other suggestions if the 
problem persists.

Jeff in NC

>From: "Jeremy Popp" <trentjus@xxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: [DML] a few tech questions
>Date: Tue, 22 Nov 2005 12:23:31 -0000
>Hello folks!  Some questions about my D:
>#1 I just changed the water pump and all the coolant hoses. Upon
>starting it up it idles perfect (as before) around 800 rpm.  BUT,
>after I rev the engine or take it for a spin the throttle sticks
>around 2000 rpms and will not go back down.  When i get behind the
>car and pull the throttle thing back to slow it down all I get is
>massive fluxuating Idle from 500-2000 rpm back and forth.  But, after
>sitting 24 hours I start it again and its back to perfect idle untill
>i rev again. So is this my throttle sticking? Or some sort of vaccum
>leak? Keep in mind I just had everything apart from doing the water
>#2 My battery is less than a year old. If I start the car every
>single day I never have any starting/power problems. But, if I let
>the car sit say, 3 days and I try to start it I get nothing. All my
>lights come on but when I turn the key I get absolutly nothing. Now,
>if I keep trying, eventually it'll turn over and its all good. The
>longer it sits, the longer it takes to try to start it. But once I
>start it, I can start it 100 times in a row without problems.  Is
>that some sort of relay problem?
>#3 When I turn the key to start the car the ignition switch/key
>doesnt spring back to acessory... so after it starts i have to turn
>the key back a little. Ideas?
>Thanks sooo much. Details on the car:
>vin 1495
>24 k miles
>alot of original stuff
>temperature outside approx 45-50 (if that matters)
>Jeremy Popp
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