2002 4 runner. hesitates like losing power during steady accelleration.constant surging
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2002 Toyota 4Runner Question: hesitation on steady accell
Answer #1dandd January 25, 2012, 00:13Master
Check for any check engine light codes, this is the best place to start, as it will help you diagnose the issues.
Answer #2patrick mannion from Greg Solow's Engine Room, January 25, 2012, 00:31Master
Start with checking for trouble codes stored, then the next best thing to do is look at live sensor data with a professional grade scan tool, you can see fuel trim figures which may imply a vacuum leak or low fuel pressure or delivery volume. Best to start with the basics and proceed with proper diagnostic trouble shooting.