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Engine problems noise on startup.

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02 Pomtiac Bonneville SSEI Help?


This sound like you have either delay on internal lubrication to tappets,most probably due to correct oil either change or viscosity.
In how many miles you do change the oil ? Just do an engine oil flush and a engine oil & filter change using also a viscosity improve and follow for a different engine behavior.

Nov 22, 2013 | Cars & Trucks

1 Answer

Engine noise when starts


Sounds like you need to run a thinner oil maybe. The oil is not pressurizing the engine components quickly and you hear was is called engine tappets. The rockers on some cars have what are called hydraulic lifters. They fill with oil after startup and then the sound goes away. You may think about having the lifters replaced soon, which are not too expensive. Be sure your vehicle has hydraulic lifters also. If your mechanic is any good he will know if it does or not. He maybe waiting for it to cause engine damage also, and knowing you will return to him to have it repaired also. Be careful.

Aug 15, 2013 | Mitsubishi Cars & Trucks

1 Answer

Harsh, grinding engine noise at cold startup. This noise does not happen when engine is warm.


Grinding not good. Check all of your fluids. Mainly your tranny and engine oil.

Jan 23, 2013 | Cars & Trucks

1 Answer

Loud exhaust noise on startup


2008 GMC Envoy is only equipped with one of two engines:
4.2L (254") 6-Cylinder SFI
5.3L (325") V-8 SFI

Niether of these engines are equipped with an EGR valve, so I guess the probability of that being the cause of your noise is pretty much zero to none.

If you believe the noise is being caused by the exhaust ststem, then the only way to verify that is to inspect the exhaust system. Leaks are easier to verify with the engine running.

With that said, there is also a Technical Service Bulletin (TSB) that is published by GM that addresses customer complaints about loud noise that is being caused by the electro-viscous engine cooling fan clutch. Some people describe it as exhaust noise and others describe it as the engine "racing" or "roaring".(even though the tachometer (if equipped) will be reading normal)

It basicly says that it can make noise on startup due to high rpm of the fan which goes away once the electric solenoids open and allow the fan to start free-wheeling. GM says this is normal operation. You might want to check to be sure this is not what you are hearing. (it can be pretty loud)

May 26, 2012 | 2008 GMC Envoy

1 Answer

Rattle noise on cold startup from timing cover


That noise comes from the valves.
Your engine has hydraulic valve play adjusters. There is too much play when there is no or low oil pressure ( when starting thus. )
You can clean out the circuitry adding a quarter to a half liter of ATF-oil in your engine oil ( please change your engine oil ). Should solve the problem in a few times.

Oct 31, 2009 | 2005 Suzuki Forenza

1 Answer

Ticking Noise at Startup


Possibly a leaking hydraulic lifter. They can leak down while engine isn't running and then make a ticking noise for a while on startup. If it takes 10-15 minutes to go away, it is more likely to be a loose tappet which needs adjusting.

Aug 02, 2009 | 1995 Buick Riviera

1 Answer

I have a 2003 Hyundai Santa Fe V6 3.5L with automatic transmission. 48K miles. When I start the car after sitting over night, I hear this whirring/whining noise from the engine compartment. I goes away...


your whining noise might be comming from dry belts in order to pinpoint your problem have a jug of water ready before startup open the bonnet then startup if the noise appears pour water over the belts if noise goes away replace v belts

Jul 13, 2009 | 2003 Hyundai Santa Fe

1 Answer

02 silverado gas tank popping noise after startup & shutdown


It could just be the heat shield around your exhaust expanding and contracting again when your engine cools down. Sounds like a tin can type of popping noise?? If it is that's the heat sheild from the engine that protect's the spark plug wire and around under the truck cabin. Good luck and hope you find where the noise is coming from.

Apr 06, 2009 | 1999 Chevrolet K1500

1 Answer

Soulds like valve clicking noise for about a sec during startup the goes away. when I changed the oil and filter I heard the same thing once I started the engine to let oil circulate through engine


It's normal. When the car has sat, the oil drains down to the pan. On startup, you're starting an engine with no oil pressure (any car is like this), but once the pressure pumps up after a second or two, the noise goes away. Don't worry about this - it's normal.

Dec 08, 2008 | 2004 Audi A4

2 Answers

Engine knock noise on cold startup


these 3.3l engines are equipped with timing chains. if vehicle has prolonged down time, typically more than 4 hours, vehicle makes a chatter until the timing chain tensioners put tension on the chain. you will need them replaced.

Nov 29, 2008 | 2006 Hyundai Sonata

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