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Unread 06-16-2013, 07:26 PM   #1
nikondsindent
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1989 YJ Wrangler 
 
Join Date: Nov 2012
Location: victorville, ca
Posts: 31
Distributor problem

I seem to have a problem when it runs it sounds like I have a small random misfire and you can feel it PUFF out the tailpipe and when you unplug and cap the vacuum to the distributor it seams to run a bit smoother with almost non existing puffs. I have replaced cap rotor wires and plugs. Should I replace distributor or ignition coil???

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Unread 06-16-2013, 07:49 PM   #2
Old4X
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1990 CJ7 
 
Join Date: Nov 2008
Location: Ga
Posts: 4,620
Hook up a vacuum gauge and see what it tells you. Check for vacuum leaks at the same time.

A compression test is also in order.



Replacing parts randomly is expensive.
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Unread 06-16-2013, 08:33 PM   #3
nikondsindent
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1989 YJ Wrangler 
 
Join Date: Nov 2012
Location: victorville, ca
Posts: 31
Vacuum gauge to what? Where and what should i be looking for what is good what is bad?
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Unread 06-17-2013, 06:19 AM   #4
Old4X
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1990 CJ7 
 
Join Date: Nov 2008
Location: Ga
Posts: 4,620
http://www.international-auto.com/fi...uum-gauges.cfm

Hook to manifold vacuum source
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