With mine, it tends to be a signal that it is low on oil. Check your fluids and top off any that are low and see if that helps. --------------------------------------------- Check your tensioner and pulley
Auroras use only premioum gass
From what I can tell, the rattle is most likely coming from your alternator, Take It In!
Because there is something wrong with the accelerator. Is the rattle coming from the tire? It could be that you just broke your wheel studs and your tire is hardly holding on! Do not drive this car!!!
what motor is in your truck? It is a Triton V-8 (5.4L)
Many different things can cause a rattling noise in a Mazda tribute. Stark by checking the engine belts and all brackets for anything that could be loose and causing a rattle.
check your serpentine drive belt for fraying.
Check heat shield on catalytic converterTry going to a higher octane fuel
Harmonic balancer
If your rattling noise is coming from behind the dashboard it may be to do with the heater/fan box, replaced a couple. If the noise is coming from the engine bay, then I`d suggest checking oil level first, if it`s a bit low it can take longer to reach the top of the engine on initial start-up, causing it to rattle. Otherwise, take it to a mechanic who you trust...
Check just in front of the muffler. The pipe that connects the muffler and the catalytic converter went on my 97 GTi, a portion of the exhaust system was sitting on a support causing a rattle sound when accelerating.
Diesel engines rattle. They all do.
Valve train clatter.