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that sound is caused by hot air causing the metal pipes to expand.
Pinging is caused the exhaust valve closes before all the exhaust gases are out and the intake valve opens and new fuel enters. One of the best ways to fix it is to adjust your timing, or change your fuel octane to a higher one.
What else can I help you with?
What would cause pinging in a 2002 Trail Blazer?
Pinging, knocking and detonation are all terms for a condition known as "pre-ignition,". That means some of the gas and air mixture is igniting in the cylinder before it's supposed to. And when that extra flame front crashes into the normal flame front (created by the spark plug), you hear a noise, and that noise is pinging. Pinging is something you want to avoid if possible. Engine damage can occur if pinging is severe. Pinging is caused by using too low an octane fuel. Use what is recommended in your owners manual. An engine out of time will also ping, so have the timing checked. Carbon buildup will also cause pinging. A product called Seafoam injected through the intake as outlined in the instructions on the can will help remove carbon and stop pinging. A defective EGR valve is another cause, and also overheating. So replace the thermostat and flush the cooling system.
Why would your Impala LS make a pinging noise until it warms up?
this is caused from piston to cyl wall clearance when engine warms up the pistons exspand and the noise is less. DON'T WORRY ABOUT IT
What would cause juddering noise on car?
cold engine
What would cause a pinging sound in the 2.3L engine in a 95 ranger The timing belt was just replaced Could it not be set right The truck feels like it has less power than it did before the belt was r?
Sounds like the timing is off just a bit ur getting the start of detonation which makes the pinging noise ur hearing. That is the most logical (as or if ) it was not pinging before the timing belt was replaced.
What happens if i have a bad knock sensor?
you would experience a pinging "metalic noise" under heavy or rush acceleration, would also have lost of power. this problem will not turn the check engine light.
What would cause a clunking noise and judder from the drivers side of your engine?
Have someone check your Engine mount
What would cause a tapping noise in a car engine in a Nissan Maxima?
loose exhaust
Why is my 1999 gmc suburban jerking making a loud noise.?
If the 1999 Suburban noise is a sort of loud banging noise, the problem could be that the engine have jumped time. Jumping time would cause the noise and jerking in the engine.
What would cause a loud knocking noise in engine upon starting?
Running too lean.
Can a bad 02 sensor cause your engine to make a noise?
Not likely. A bad O2 sensor would illuminate the check engine light and the engine performance would suffer.
What would cause a loud knocking noise coming from the engine at 70 mph and make the truck shake very badly?
Having a bad rod bearing could cause a truck to make a loud knocking noise and shake when driving at high speeds. The engine having a coolant leak or an engine timing problem could also cause the knocking noise.
What would cause engine noise on 97 dodge caravan only when ac or defroster is on and only when accelerating?
Loose belt - will sound like a screeching noise.
