Hose unattached to distributor vacuum can't plug back in - Jeep Wrangler Forum
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Old 08-17-2012, 10:27 AM   #1
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Hose unattached to distributor vacuum can't plug back in

Well I am new to this just bought a 1990 Jeep, I had one 20 years ago, and fixed these things but I don't remember how now. The problem is the hose is unplugged from the distributor, and has the screw in it. I understand it was done for timing, but it was never plugged back in. When I bought it I noticed it and plugged it back in, now it stalls when warm. It runs pretty darn good with it out, warm and cold should I just keep it that way or do I need it plugged back in? What issues would be caused if I left it out? Can't find an exact thread talking about this.

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Old 08-17-2012, 11:16 AM   #2
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Originally Posted by gothost View Post
Well I am new to this just bought a 1990 Jeep...
If it's a 1990, it's not a TJ. Exactly what model Jeep/engine do you have?

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Originally Posted by gothost View Post
When I bought it I noticed it and plugged it back in, now it stalls when warm.
It's likely that the vacuum advance module is leaking and needs to be replaced.

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Originally Posted by gothost View Post
What issues would be caused if I left it out?
Reduced power and decreased fuel efficiency.

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Old 08-23-2012, 10:56 PM   #3
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Thank you gas mileage sucks you are right about that its the 4.2 straight 6
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