timing chain or gear is broken thats why it cranks so fast the starter is just turning the crankshaft not the cam. look or feel the rocker arms if they are not moveing its the the timing belt/chain
do you mean it cranks, but will not start?
1989 ford F250 Fuel Problems, It cranks but wont start
Yes
Does it quit shaking when it warms up? What engine and year of Aerostar?
Cranks is the motor turning over, But cranks and won't start means either you no fuel or no spark or both.
how does it stall if it wont start?
An engine which cranks but will not start is not receiving enough fuel or has no spark. A clogged fuel filter or bad spark plugs often cause this problem.
Honda civic Lx 2000 wont start it was idling really low it just turn off on me now it wont start it cranks over like wants to start but nothing
Whats wrong when an 86 ford aerostar keeps trying to start after the engine is running?
its not your ignition its your crankshaft sensor that's the same problem i had.
If it just cranks and cranks and cranks then it's likely fuel pump. If it died and it won't turn over anymore, likely alternator.
i hit he curb and put a hole in the oil pan ,i replace the oil pan now the engine cranks but doent start. what could be the problem