Get the engine oil pressure check ASAP, ensure there is sufficient engine oil, if this noise in more of a rattle under heavy acceleration get the timing check, as this can be engine ping due to an ignition timing problem.
July, 4, 2012 AT 4:15 PM
The engine oil is always checked to see if there enough. The noise is more like a rattling. What do you mean about getting the timing checked?
July, 5, 2012 AT 7:03 AM
If the ignition timing is out you can get engine ping, that sounds like a rattle under heavy acceleration, get this checked first. Also bad fuel can cause this as well, that is if the problem is ping or pre ignition which is another term for it.