Question about Jeep CJ5

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Have 1981 jeep cj5 258 6 cylinder have no vacuum from distirbuter to carb. took hose loose from distributer and blew thru it, no obstructions. just no vacuum this seems to cause engine to idle very slow and dies. my brother says I have to have vacuum between distirbuter and carb. jeep has run for several years.

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Apply vacume to the vacume advance at the distributor.the diaphragm may not be working.also check to make sure the advance mechanism in the distributor is not siezed.the last thing you will have to check is when and if you vacuum ot the port on the carb that the hose connects to and at the correct time(throttle position)

Posted on May 22, 2011

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very very old post
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== Do not rule out vacuum advance line/hose. ==
Do a short test ran without air filter to rule out air restriction.
Add injector clean to rule out bad fuel. I recommend Lucas fuel additive. 3768a4b.jpg

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