99 grand jeep cherokee, my check engine light came on today when I was at a stop light and it start to idle a litter different and it felt like the engine was shaking the car, any suggestions.

Asked by David Jul 10, 2015 at 10:56 AM about the 1999 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

I just had an oil change 3 weeks ago

1 Answer

130

Get the codes checked. Might be a vacuum leak causing a bad idle which could cause the engine to run poor. Look for broken vacuum lines. Could be the PCV hose, they are relatively cheap to replace and easy to do.

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