shaking engine

[Locker_09]

when i rev up 3-4000 rpm my engine is shaking is this normal and when im going like 30 there is like a hovering sound and the sound speed up to when i speed up any body knows whats going on?

 

[flash75]

What year car and how many miles? Does it happen if you rev the engine with the car not moving? Are your tires in good condition?

Welcome to the forum.

Clifton

 

[Locker_09]

2004 and got 33,000 miles on it.yeah it hapeens when the car is not moving.I dont know about my tires though.

 

[Captain KRM P5]

could be engine mounts. thats awfully low miles for a 2004

 

[Locker_09]

I try to switch my gas from 87 to 91 before then when im runnin like 70-90mph my car is shaking too.

 

[Locker_09]

its from guam dude there is not much long drive here.I still have the stock engine mounts do i need to change it

 

[Nutari]

Automatic/standard?

Which model Mazda do you have?

Can you move your engine just by pushing on it?

Visually inspect your motor mounts. Look for tears.

Any Check Engine Lights on?

 

[Locker_09]

automatic mazda 3 hatch.engine lights is not on ill try to inspect and push my engine to see if i can move it

 

[Captain KRM P5]

wasn't meaning to criticize on the mileage, just rare to see one that low

 

[Nutari]

im confused as to what the symptom are.

In neutral/park, the car shudders at 3k rpms? Why are you revving that high in neutral/park?

Any other symptoms while driving?

 

[Locker_09]

no other symptoms while driving just when I rev it up while on park.Is it bad to rev up that high

 

[Nutari]

no other symptoms while driving just when I rev it up while on park.Is it bad to rev up that high

There is no reason to be revving your engine while its in park. Its probably normal engine movement.

Hard to diagnose over the internet. I would have to see a video of the engine movement to say whether or not it is excessive.

 

[Locker_09]

ok ill try to get one

 

[Locker_09]

its not shaking anymore maybe its just the gas that im using before