The other noise I get is from the cargo floor lid and/or parcel tray going "blam" whenever I go over anything larger than a small bump. The rattling noise appears when you start speeding up from 0 to maybe 30 or 40 mph and then disappear after car speed surpasses 40 mph. 2 Answers. However, if your engine starts making a rattling noise, that is far from normal. i've had this rattling noise problem ever since i got my car, which is from last may. The noise will occur under no load simply … Went home and switched cars. I've had my car … A noise in the suspension was one of them. It sounds like rattling … The exhaust noise may also be louder than normal, and appear to be coming from under the car instead of the tailpipe at the … rattling under the floorboard - What makes the noise. There are factory made holes in it, and the rocks sit in there like eggs in a carton and rattle … In another circumstance, when your automobile is running at low speed the noise keeping coming out of car … Question type: General. Hey guys i just recently noticed a rattling noise in my car. My son's 2002 Subaru Impreza Outback 2.5 liter non turbo engine has developed a rattling noise between about 3000 and 3500 rpm. Car … Rattles From Under the Car If you have checked all the interior pieces that could rattle and still haven't discovered the source, the noise is likely coming from elsewhere in the vehicle. i've talked to some people and they said its most likely a loose heat shield problem. There was a tapping under the tunnel near the rear passenger's feet. Sounds like its coming from under the middle console, between the seats. When inside the vehcile it seems to be coming from under the car. The engine has many moving parts which all make some kind of noise. Sound is coming from underneath the car . Used Cars New Cars ... 2018 at 08:00 PM about the 2003 Subaru Outback Base Wagon. the noise comes on when i first start my cold engine. it sometimes appear again when im driving and not gasing it. Skip To Content. I would have thought that Subaru would have worked out these details in a 10+ year old platform. If it sounds like the rattle is coming from the interior, but you haven't found any loose interior pieces, it is a good bet that the noise … If there’s something that feels loose, that’s probably what’s Makes a wierd rattle sound, which I thought was a heat shield but isnt, when I down shidt or let off the gas and let the engine slow the vehicle. I started it up and did a test run. It only happens when i open up the throttle spiritedly. Got out to find two huge chunks of ice between the body and what i think is the catalytic converter. This is the first new car I've purchased that I had to use a bungie cord to keep something from rattling. me and my dad has taken a look under the car… SOURCE: Rattling sound when accelerating on 2007 Forester On mine, I got under there and there are rocks rattling in the heat shield. once it warms up, the noise is gone. An car engine has to make some kind of noises. This can cause a rattling noise under the vehicle. What makes the noise. 8 Reasons Why Your Car Engine Making a Rattling Noise. This afternoon there was a lot of ice chunks under the car. Visit me at: http://www.ericthecarguy.com/The Subaru came in for a couple of things. But all of this is normal.