My Odyssey starts bucking and looses power after driving about 20 minutes

SOURCE: After 20 minutes of driving my battery light comes on.

have your alternator tested. you could have a bad diode in it allowing current to backfeed this would cause light but it would still charge some. also check connections on alternator primarily the big plug have had some problems with those getting hot and burning

SOURCE: bucking and loosing power

try a new set of plugs and leads.

SOURCE: Hi, have a 1995 nissan maxima automatic, 160K

it could be an egnition module or somthing basic like fuel presure .. prob the pump .. but lots of things can make it do that .. u need a mechanic to look at it

JAMES LAND

• 334 Answers
• Posted on Apr 11, 2011

SOURCE: while im driving about 20

SOUNDS LIKE IT OR THE MODUAL OVER HEATING

SOURCE: 2000 es300, sometimes surges - last time it seem to lose power could only drive about 20 miles per hour

Check for failed EGR Valve or system component

If the valve has a vacuum hose going to it ,disconnect,
plug hose & test drive to evaluate bad valve & high vacuum
signal as you suggested