vent or vacum problem?? - JeepForum.com

 
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post #1 of 6 Old 07-19-2012, 10:51 AM Thread Starter
unkleabe55
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vent or vacum problem??

hi
i have a 96 Grand Cherokee Laradeo 6 banger
when i accelerate my vent doors slam shut and the defrost doors open
when i let off the gas they go back to normal
it also has developed a slight miss also
any ideas???????????

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post #2 of 6 Old 07-19-2012, 12:04 PM
youngjeepr
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1988 YJ Wrangler 
 
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Does it do it when you rev the engine or just when you move?

88 YJ- 4.7l stroker, AW4, SOA, 8.8, hp D30 powertrax no slip,3" front stretch with waggy springs, stock replacement springs in the rear, 35/12.5 r15 goodyear kevlars

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post #3 of 6 Old 07-19-2012, 12:33 PM Thread Starter
unkleabe55
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when i accelerate
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post #4 of 6 Old 07-19-2012, 12:38 PM
youngjeepr
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If its only when you start to move then It would be a vent problem.. If it does it when the engine RPM goes up whether your moving or not it could be vacuum.

88 YJ- 4.7l stroker, AW4, SOA, 8.8, hp D30 powertrax no slip,3" front stretch with waggy springs, stock replacement springs in the rear, 35/12.5 r15 goodyear kevlars

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post #5 of 6 Old 07-20-2012, 12:06 AM
camelracer
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You've got a vacuum leak somewhere or a bad check valve.
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post #6 of 6 Old 07-21-2012, 07:49 AM Thread Starter
unkleabe55
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i also need a map sensor does anybody know what parts cross reference for a 96 GC laradeo 6cyl??
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