mmdir2005@yahoo.com wrote:
>
> My car does not run well on uphill driving. Sometimes it climbs fine.
> Sometimes
> it doesn't. I think it's has to do with humidity of atmosphere. The air
> going into
> engine is not constant. Some sea level it's ok and other sea level the
> air is not going
> well so the engine hesitate. I don't know what to do about.

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If it's also hard to pass on level highway (sputtering), it's probably
time for a fuel filter. It manifests when fuel flow is highest. Run a
can of injector cleaner through and see if everything clears up.
Simplest.

'Curly'