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2003 has trouble climbing a hill.

3587 Views 10 Replies 6 Participants Last post by  Mexjames
Hi there!

Ours is a 2003 Odyssey with about 65,000 miles on the clock.

Lately is has shown some trouble climbing a long grade, which is more or less steep. In the past the minivan has had no trouble there, but as of two or three weeks ago, it feels slow climbing and is sort of shudders, like if it had a dirty spark plug.

On flat streets it also feels kind of slow. I've also noticed that the transmission shifts a little bit hard among the gears.

Because of traffic conditions it seldom shifts to 4th, let alone 5th gear.

Thanks in advance for the advise.
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These days an ODB2 scanner is a must have time saver. I went with a Scanguage. You can pull/clear codes and monitor stuff like MAP, temps, O2 mode. My Jeep ran crappy because of the upper O2 sensor being intermittent. I could see it go in and out of loop with my scanner. Unplugged the O2 sensor and it ran fine using the default settings.
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