no power to climb hill after driving for a while

[jamesz]

A 2007 vehicle has problem when the engine gets hot and loose power to climb hill. any one had similar problem and how was it resove are what the problem was?

[jolanya]

That is exactly my problem can some one helpeverthing has been change

[DSHornet]

Have you had a problem that caused spark plugs and wires to be changed? The reason I ask is that a badly misfiring spark plug will cause a rich fuel mixture through the catalytic converter(s) that, given enough time, will cause damage to the catalyst. When the engine is up to temperature and has been for a while, the converter may start to plug up partially and restrict exhaust flow.

It's a shot in the dark, but is it a possibility?

[danielsatur]

When you put the pedal to the metal, doe's the transmission down shift?

[danielsatur]

If it's a bad, or plugged catalytic converter, it maybe still covered under federal emissions warranty.
8year/80kmiles