Is it a lifter ticking?
why won't a 2001 Impala shift into high after it warms up? All shift sensors have been replaced
You have to locate the source of the noise then repost your findings.
The fluid could be low, or the pump could be weak and makes noise until it warms up the fluid. There is an additive available to help quiet the pump.
Wait until it warms up and melts
It is possible that the bearings are going bad on the water pump but you are going to have to listen to where the noise is coming from, whether it is inside the engine ( rod knock or oil pressure issues ) or outside (pump bearings or pulley issues).I lean toward internal wear or damage to the engine since the noise goes away when it warms up which indicates that when good oil circulation is present the problem goes away, bad bearings in a water pump will always make noise until they are repaired.
It will until the coolant warms up.
why is there squeek noise when starting and then goes away when engine warms up
Cold air is more dense air so for a given volume of air more fuel will be used. Also, when the engine is cold it tends to run richer (more fuel) and higher idle until it warms up.
If the noise on occurs after the vehicle has sat for a while, it could be a hydralic valve lifter bleeding off. They tend to click for a while until the oil pushes all of tha air out. Maybe go to a lighter weight of oil. BG makes a product called MOA that has helped ease the clicking noise in vehicles I have worked on in the past. Take it easy until it warms up and even clicking it should last for a whole lot more miles!
I think it needs a nose job, a.k.a., rhinoplasty.
this is normally caused by a worn belt.after the vehicle warms up the belt expand with the heat picking up the slack and stopping the noise.
Chev has a law suit on their small blocks from piston slap. Take your vehicle to a real DEALER and have them check the recal against your VIN #. This is a big problem for Chevy... the pistons are cam ground (not round) and expand to a circle in the bore as she warms up. The noise I suspect you are hearing is the famous piston slap that these units are getting known for. Go on some Cheby forums and I am sure you will find discussions on this issue. Hope that helps you --
If its coming from your engine, you may need a valve adjustment..
Often a knock when cold is caused by piston slap, which is pistons rocking in the cylinders until they expand in size when the engine warms up.
if its a tick not a knock, its probably lifter noise. its not too terrible, once the weather warms up, i would recommend getting some thicker oil, if it fixes it, then im probably right.
replace your mapp sensor
its prob the thermostat i had the same problem with my uncles
Clean the throttle body. If that doesn work, replace the Idle Air Control (Valve), which is located on the throttle body.
Possible dirty fuel injectors or TPS sensor.
Low Octane fuel will cause pinging. It should not last for more than a few seconds then the Knock sensors should signal the PCM to retard timing. You should ensure that you use ONLY "top tier" Gasolines. If it continues to ping then you must use a higher Octane fuel. Please be aware that Top Tier and higher octane are two different concepts. If it still continues to ping (for more than a few seconds) then you must take it in and find out why the knock sensors are not working. The other noise that happens on cold starts is a diesel sound and should go away after the engine warms up. Early 2002 Models have a TSB that refers to this and sleeve failure. For full details on this and other stuff join us at www.trailvoy.com
Yes, especially on cars with high mileage. I have a 90 Acura Legend (made by Honda) with 145,000 miles and it does this too. As the car warms up, the ticking noise decreases or goes away. I've gotten use to it and ignore it.
ONCE IT WARMS UP THE RADIATOR FAN KICKS ON TO COOL IT. MY GUESS IS THE FAN IS HITTING ON SOMETHING. RUN THE CAR IN YOUR DRIVEWAY WITH THE HOOD OPEN AND WAIT TILL IT WARMS UP THEN MAYBE YOUI CAN SEE WHATS HAPPENING. ONCE IT WARMS UP THE RADIATOR FAN KICKS ON TO COOL IT. MY GUESS IS THE FAN IS HITTING ON SOMETHING. RUN THE CAR IN YOUR DRIVEWAY WITH THE HOOD OPEN AND WAIT TILL IT WARMS UP THEN MAYBE YOU CAN SEE WHATS HAPPENING.
It has a leaking head gasket or a crack in the cylinder head.