Bad plugs, wires, or even coil packs. Auto Zone will read your engine codes for FREE... If it's the plugs or wires then change them both. Don't be cheap you will regret it in the long run. to change plugs and wires it takes around 4 hours or so. Been there & done so.
you have a control vacuum leak, listen for hissing noise under dash when engine is running.
Bad ground or alternator stating to go bad.
what kind of noise?
bad wheel bearings
Slow engine RPM is the main reason a car may be sluggish while accelerating. However, it also could be due to the oil.
sounds like a cv joint
while driving yur car reduces speed then pulls off with speed and backfires what can cause that
It is timed incorrectly or plug wires are installed incorrectly.
Signs of a worn timing chain are difficulty starting in cold weather with backfire and sudden brief loss of power while accelerating or decelerating ("stumbling").
A worn out Universal joint in the rear driveshaft.
Slowing down
What kind of howling? Or is it a whining? Where does it sound like it's coming from.