Loud knocking noise

A knocking noise is not good. Usually a rod knock indicating worn bearings on the crankshaft and push rods that drive the pistons. You definitely would cause more damage to the engine, be stranded somewhere when the engine throws a rod. So do not be driving it. The motor needs to be rebuilt or replaced.

Thank yu ^^^ your answer is most helpful I'll definitely do some research and learn how these auto parts work & such.. again thx

My Tahoe did this, and EVERYBODY AND THEIR BROTHERS said I needed to replace/repair engine!! It ran too good for that. It turned out a heat shield was loose, and made a racket like a rod knockin...Had even one mechanic that said he felt the #7... All you do is take them loose, from the exhaust close to engine, and probably one piece at a time. Do this while the engine is cold. Overnight cold.

chip Kemp what you're saying sound like my situation. I notice a suction noise and ticking from the manifold area when driving and it does not tap while sitting idling the motor is still strong spunky with great oil pressure if I change the oil at 3,000 -3,500 it burns no oil in between. I had plan on taking it in to get the manifold gasket replace but needed to figure out if i had motor issues first now that i have some insight on it i'll get the manifold and heat shield replaced or repaired Thanks for the Info.

My 07 tahoe knocks after i drive ot for a nout 15 minutes could it be the termostat imhear only on knocking nosie not all pistons or what eber is just one single knockin, what could it be ? Does anyone habe the same issue

I have a 96 chevy tahoe when i start it and let it idle i dont hear any knocking but when i take off it sounds line i rod hitting like it needs oil but the fuild are good.