Why does my Nissan Maxima make a low knock noise at idle?
My noise is only when the car has been running for awhile, it’s a low knock at idle that follows the rpm level then stops when driving. Took it to the dealer and they told me it’s a common problem with the main bearing, there trying to get me a new block.
Can a vacuum leak cause a maxima to go to rough idle?
In some cases, a vacuum leak can cause a Maxima to go from a rough idle to idling at too high of an RPM, then go back to a rough idle. If your Maxima is hesitating when you push on the accelerator, it could be due to a vacuum leak.
What does a hissing noise under the hood mean?
If you hear a hissing noise under the car’s hood that is similar to a fast leak on a bicycle tire, it is a sure sign of a vacuum leak. If the vacuum leak can be easily heard, it helps a mechanic pinpoint the exact cause of the leak with greater ease.
Why does the butterfly on my Nissan make a noise?
Try using a stethoscope like this http://amzn.to/2mbIuIOto help pinpoint the noise. It is common on Nissans with power valves for the screws to become loose, or fall out altogether. Also, the shaft that the butterfly sits on may wear out, and have excessive play. Try manually opening and closing the power valve to see if the noise comes and goes.
My noise is only when the car has been running for awhile, it’s a low knock at idle that follows the rpm level then stops when driving. Took it to the dealer and they told me it’s a common problem with the main bearing, there trying to get me a new block.
Why does my car make a ticking noise when I accelerate?
Rod knock could be the possible reason for a major engine issue. When the bearing connected to the rod wears off or gets damaged, the rod knocks around the crankshaft and creates a metal-to-metal sound. You will hear a rhythmic, loud ticking noise in engine when accelerating.
When does the engine knock noise go away?
Noise goes away while driving or at high rpms and there are no engine codes or check engine lights. I hear it too; I now have 42K on mine and it doesn’t seem to be getting any worse.
What should I do if I hear a ticking noise in my engine?
If your engine develops a ticking or knocking noise in a short period, the first thing you should do is shut off the engine and check the oil level. You’ll need to find the engine oil dipstick and see if you need to add oil or if the oil level is up to the full line.
Noise goes away while driving or at high rpms and there are no engine codes or check engine lights. I hear it too; I now have 42K on mine and it doesn’t seem to be getting any worse.
Why does my car make an awful noise when I sit at a stop light?
As the exhaust system ages, sometime the heat shields start to rust at the hold-down points and become loose. If this is your problem, the engine vibrations will cause an awful noise as you’re sitting at a stop light or as your car is idling in the driveway warming up.
Why does my car make a knocking noise when I idle?
A knocking noise occurs when idle and driving. At first they said it just needed oil, but after topping off my oil it still knocks, so they said it might be rod knock. I just had my old change three days ago and it’s already black.
Why does my car Jerk when coming to a stop?
When I have my heat on full blast when driving, I can feel it jerk somewhat. What seems to be the issue? If you are getting a rough idle with misfire only at idle or coming to a stop and runs fine when driving above idle is usually caused by a vacuum leak in the intake or vacuum hoses.
What does it mean when your car is idling but not running?
When the engine is running but the vehicle is not moving, this means the engine is idling. During this time, the number of revolutions per minute (RPM) inside the engine will change.