I am losing power during a climb up hill, it runs smooth and does not miss fire. it will bog down during the climb and i have to pull over to the shoulder to continue traveling since my speed has dropped so much i cannot stay with traffic but the engine does not die. there is a slight hesitation upon acceleration. the spark plugs and pcv valve have been replaced, and i cleaned the air flow sensor and installed a new air cleaner. it appears to have the problem only during a low vacuum condition. what components could cause this problem
Dec 20, 2009 at 2:20 PM