2001 Pontiac Grand Am GT 6 Cyl 3.40L
My vehicle cranks over slowly.
I have done a tune up, replaced the air filter, replaced the fuel filter. The battery, starter and alternator checked out perfect. Check engine light is not on. What else could it be?
I'd have to check for voltage drop on the starter circuits. Could engine issue causing it to be hard to turn over? Pull your all your spark plugs and serpentine belt, see if the cranking rpms improve.