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What could cause a subtle knocking noise in the engine when it's cold and only when accelerating and gets quicker the faster you accelerate?
Wiki User
∙ 16y ago
I would say you either have a rod knocking or lifter knocking. I know in the 3.8 litre motors they are known to knock alittle when you cold start them. Most Grand Ams, Grand Prixs are like this. My sister has a 2002 Grand Am that does this and the noise goes away once it's warmed up. I would also double check and make sure your oil is full. get your car to a garage for a def solution.
Wiki User
∙ 16y ago
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Knocking noise when accelerating?
The knocking noise is commonly called spark knock. The knock can be called by the engine timing not being set correctly, or using gas that has too low of an octane for the engine.
Knocking noise while accelerating?
A knocking noise can occur from worn engine mounts. When the rubber insert on the engine mounts are old and brittle the chassis is not protected from the weight of the engine. Creating loud vibrations that get louder as the vehicle goes faster.
Why does your engine make a knocking sound when you accelerate?
When you accelerate. you are putting presure on the main engine barrens. if they are going bad. You will hear this knocking sound. I don't know how many miles you have on this engine. But that's what it sounds like. But that's not all that can make this sound. You will have to tell more about it and when it started. Did it just start all at once? or did it start and then get louder?
What causes a engine knocking noise when you are accelerating and the engine is warm doesnt do it when engine is cold?
Most likely needs a tuneup done. Check the timing and change the normal tuneup part.
What courses slight knocking noise of 2.3 litter engine when accelerating at a full load operating?
knock sensor is going bad or is bad
Why is my Chevy 2003 LTZ Trailblazer slow to accelerate and engine strains when accelerating?
check cat converter if it has 75000 miles or more
Why does engine make knocking noise?
If it's knocking when accelerating, the engine could be starving for the correct octane fuel ... try the mid-grade or premium fuel and see if it still occurs. Could also be that the timing belt needs to be adjusted/replaced. If the knocking sounds like metal on metal, chances are you are in for a bigger bill for a possible engine rebuild. At any rate, have it checked out by a mechanic soon.
1999 Chevy blazer there is a knocking coming from the engine when it is in idle and when you accelerate the knocking gets louder and faster. What could cause this to happen?
My 99 sonoma had a knock and it was a wrist pin in the engine, my 99 jimmy fuel injection leaked gas in the engine oil and caused the main bearings to fail because of lack of proper lubrication.
Knocking in the bottom of the engine?
knocking noise
Why do you hear a clicking sound from the engine when you accelerate?
when we accelerate vehicle the supply of fuel gets increased .. Then inside the combustion chamber all the charge can't burn in such case so phenomena of knocking takes place.. So the sound can be heared.
Car stalls when accelerating?
when kick down the gas pedal to accelerate, the car downshift but then stalls and then engine stays rough until i turn off the engine and restart it then the engine runs normal again till the next kick down.
What would cause a knocking noise when the engine is cold . What does a clicking or ticking sound mean when accelerating or releasing the gas pedal?
a "knocking" noise could be your lifters. and the ticking when accelerating and letting out of the gas is the same thing. check your oil and if it's full then you may need to think about either having them adjusted, or getting new ones. depending on what you have depends on whether or not you wanna sell it
