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Why does the idle on my 2001 Jeep Grand Cherokee 4.7 V8 Fluctuate up and down ?
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- 1 decade agoFavorite Answer
Could also be a bad MAF air sensor and the computer is trying to find the connection
- AlfonzoLv 71 decade ago
also check for a vacuum leak on the engine, or a loose fitting on the throttle body.
- kelly_f_1999Lv 71 decade ago
dirty fuel system maybe try a bottle of fuel treatment
maybe replace fuel filter
maybe have fuel system flushed
replace air filter tune up
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