Common questions

What is the ticking noise under my hood?

What is the ticking noise under my hood?

A ticking sound could be caused by any number of reasons, such as a low level of oil or loose components. You may hear a ticking, clicking, or tapping noise while the vehicle is idling, accelerating, or even after receiving an oil change.

Why does my truck idle a ticking sound?

The tick in your engine could be normal based on the design of your engine or could just be from normal wear from your engine running. As high-pressure exhaust escapes from a crack in the manifold or a leak in the gasket it will sound like ticking or clicking especially at idle or low engine RPMs.

Why does my 5.3 liter Vortec make a ticking noise?

Causes of Startup Noises in a 5.3L Vortec Valve Lifter. Lifter tick is a common occurrence in V-8 engines like the Chevy 5.3-liter Vortec. This ticking sound is caused by the valve lifters, which are filled with oil during engine operation.

Why does my Chevy 5.3L engine keep ticking?

When reassembling the engine, ensure that the lifters are properly aligned to the new plastic lifter guides before they are installed. If they are not properly aligned, it may damage the plastic lifter guide once it is torqued, which may allow the lifter to turn in the guide. Low oil pressure to the VLOM can also cause AFM lifter damage.

Why does my car make a ticking noise when I start the engine?

A loose piston pin, for example, causes a sharp double knock usually heard when the engine is idling, or during sudden acceleration then deceleration of the engine. A piston pin that has been improperly fitted will emit a light ticking noise that is more noticeable with no load on the engine.

Why does my Buick Regal make a ticking noise?

You need to drain all the fuel, Low cylinder pressure means engine needs to come apart to fix it. 2001 buick regal gs just started making a ticking outside is over 100 .Engine part closest to drivers seat started smoking.Have heard reports of engine fires with this model.

Why does my Chevy 5.3L make a ticking noise?

Regarding a ticking noise or misfire on 2005-2014 GM V8 engines. Therefore with AFM (Active Fuel Management, formerly known as displacement on demand (DoD)). Engine ticking or misfires seem to be happening on cylinders 1, 4, 6 and or 7 on the effected engines.

What’s the knocking noise coming from MY Suburban?

I recently ran into this same knocking/ ticking issue coming from my 2005 Suburban, 5.3 Vortec. After countless hours of research, multiple engine flushes, oil change, air filter, valve adjustment…etc etc etc…my solution and problem were relatively simple.

Why does my GM Truck make a knocking noise?

Valve lifter knock or injector, this will occur until valve lifters fill with oil, as they leak down when engine is at a 4hr cold soak. They fill within 30 seconds of running, but sometimes if there was traped air oil “foaming” they can make a knocking noise for closer to a minute.

Are there any problems with the Chevy 5.3L engine?

Problems regarding Chevy 5.3L engines, carefully inspect the camshaft lobes. This is to ensure that they are not worn as well as the lifter bores for any scoring/damage that could be a concern. When reassembling the engine, ensure that the lifters are properly aligned to the new plastic lifter guides before they are installed.

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Ruth Doyle