Q: What is difference between ticking and knocking?

asked by on

I traded my 81 Camaro for an 83 Iroc Z28. I traded bc it looked like a way better deal. My question is this... The engine is a chromed out 355V8 700R4 with stage3 shift kit, close to 380HP. To me, It sounded like there is knocking but previous owner said its not knocking and is ticking from the Holly 650 carb because its spitting out fuel and it need regulated?. I really do not know about cars but I thought I kind of knew about knocking when the engine was going bad. To me that is what it sounds like. Did I get taken?

look at car here... http://pittsburgh.craigslist.org/cto/5848582235.html

Hey there. The engine knocking is caused by colliding flame fronts in the combustion chamber. Knocking does not stem from any mechanical fault but rather is caused by cylinder carbon deposits, low octane fuel, incorrect spark plugs, wrong engine timing and so forth. Mechanical "knocking" and ticking though have a wide range of causes usually attributable to valve train problems and of course defects in main and rod bearings. Carburetors do not cause "mechanical" engine noise. If you are evaluating the car engine, your best bet is to drive the car to a shop that specializes in the rebuilding of engines because they should be able to pinpoint the source of the noise for you based on it’s intensity, frequency, and "apparent" location.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What is difference between ticking and knocking?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: code p0591 has check engine light on, but car has no crusie control, what else is it on for?

According to my records, the code you are receiving is for a powertrain issue relating to cylinder 4 being out of balance. On diesel engines this can indicate a glow plug issue. This can be related to the fuel composition...

Q: Front right suspension area making a clicking noise that speeds up as car goes faster. My car is a 2013 Infiniti G37x.

Hi there. The clicking noise in the right front may be, any number of possibilities. A loose wheel, a wheel bearing going bad, possible brake pad movement, resulting from poor fitting pads, a worn axle shaft cv joint. There are...

Q: Car acts like I hit the brakes when I first hit gas

Hi there. This can be caused by a number of things, but the most common is a sensor issue. Most of the time this is caused by an issue with the throttle position sensor or the throttle body itself. If...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...