1993 Pontiac Grand Am Q&A
1993 Pontiac Grand Am Question: why do I hear a rattle or vibration from the engine area when cranked cold?
What engine? That is alwsys good to know! - pushrod
something is probably loose...whatever size engine you have - your.mechanic
seek a diag and est from your mech as i would only be guessing - globalhelper
Does the engine run rough on start-up? Is it a rattle or a vibration , that concerns you most? How does it change when you put it in gear? --When cold , then when warmed up? ..... More than one problem....... - ziptie12
quad 4s were always bad for timing chain noise - goodguy