Car Forum World

The engine in my car makes a rattling sound when I accelarate. Do you know what is wrong with it?

The answers people have given here are pretty good, but my guess is you're low on oil. Engines have a tendancy to burn oil if you drive them hard Stop and go traffic, high speeds . It does not mean your engine will explode or anything, it is just that lots of heat gets generated, and it vaporizes the oil in the engine.

When there's less oil in the engine, you get less oil pressure to the head, and your lifters do not fill up with oil. Hydraulic lifters are these little piston looking things that let the cams to open the valves. When they're full of oil, they take up all the space between the cams and valves and move power smoothly. When they aren't full of oil, there are gaps and the cam kind of slaps the top of the lifters, making that rattling sound you hear under acceleration.

Despite what the factory says about going five 10,000 miles between oil changes, you still have to check your oil level. I'm no saint, and drive pretty hard, so I burn on average of a quart every 1000 miles.

ex VW/Audi service consultant.

Are you sure its the engine? Had a car that did the same thing and turned out it was the exhaust system.

You have a possible leak in the exhaust manifold, attempt checking to see if any of the bolts are broken, also check to see if your tapa cover is tightly put on.

It may be anything, hard to say since many problems can because rattling sound. I could take it to the shop now before you find yourself stranded on the road.

cv joint

nope.

possibly the timing is out

It is most likely detonation or pinging. Get a tune up A.S.A.P.

We need more information.

get new BORLA exausts

What sort of car have you got is it an Audi if so what model?Many things can because a rattle if your ignition timing isn't correct,a loose drive pulley particuarly the crank one.You have to take it to a mechanic you trust to get you an honest opinion on your problem.

i work on cars so check the exhaust if it not the exhaust its a pipe valve rattling but 90% of the time it exhaust it it a pipe valve nothing to worry about

CHECK U R OIL LEVELS U OIL LIGHT MAY NOT WORK THIS could because ENGINE sound it's COMON IN AUDI