Skip the auto shop - Our mechanics make house calls

Q: A rattle when first start up

asked by on

G'day champ I have a Nissan patrol 3.0 turbo I'm concerned when I start up when cold or stopped for a while the engine has like a chain sound rattle. is it the timing chain or the fan belt or something else . It has an after market fan belt not a Nissan one . after I start it up an it warms it goes away . It's not run rough it actually is run very good an smooth . It has 204550 on the clock. It looks like it has a new pulleys on it . Just the rattle I'm very concerned about it . Can you put my mind at ease. Thanks Brett
My car has a manual transmission.

A: G'day Brett: Without knowing exactly w...

G'day Brett:

Without knowing exactly what type of Nissan you have, or being there to inspect the vehicle, it's hard to tell you why the engine is rattling when you start the vehicle. However, in most cases, the initial rattle is probably caused by a loose radiator fan shroud bracket,ancillary part on the car, or in the engine compartment. If the rattle continues for a while, it may be caused by an internal component that is loose or damaged. I would recommend having a professional mechanic take a look at your Nissan to determine exactly what's causing the sounds you're hearing. YourMechanic offers a repair and diagnosis service preformed by a professional mechanic that will commute to your location to inspect the rattling.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Rattling by the front passenger side to the muffler area.

Hi there. Check the exhaust system for any heat shields that are loose. If the heat shields are loose, you can try to tighten them up. Some heat shields are welded in place. If there is no loose heat shields,...

Q: What does the parking brake release Warning Light mean?

The parking brake release Warning Light is located on the instrument panel. This light illuminates when the car is traveling more than 4 MPH and the parking brake is engaged. When you see this light, either stop the car or...

Q: PCV valve hose collapses

I am guessing your PCV collapsed because it is old and weak. This will cause your PCV to collapse while it is in vacuum. I would recommend going to your local auto parts store and picking up a reinforced braided...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...