Q: Evaluating if the ignition timing is correct by ear on a car using leaded gas

asked by on

How can I tell if the ignition timing is correct by ear? It's an older car. The car is made for leaded gas. I use premium with lead replacement. Does it do anything at all?

Lead replacement actually does work. If it is an old enough car, you can advance the timing and then when you accelerate hard, especially if you are going uphill, if you hear the engine rattling a little when you accelerate, then see what the timing is and retard it a little.

Now, on a modern car you cannot do that because they got what is called MAP sensors. So, if you have timing too far advanced when you step on the gas, the computer would retard the timing automatically and you wouldn’t hear any rattle so you can’t do that. But, let’s face it--you can buy the timing light nowadays. You can go on eBay and buy it for like 15 bucks. So, you just buy timing light and hook it up. I have a video "how to set ignition timing in your car" and it is really simple to do.

Was this answer helpful?
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. Evaluating if the ignition timing is correct by ear on a car using leaded gas

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: Q: Car starting intermittently.

Intermittent no start conditions can be among the most difficult to diagnose because of their irregular nature. There are two things that come to mind. Number one: A faulty starter will cause a condition similar to what you are...

Q: Variable valve timing solenoid

Hi there. From the description you have provided, Check Engine Light on, being told VVT (variable valve timing) solenoid is bad, cracked valve cover, and now needs an engine is all questionable. Ford and their "5.4L VVT issues". I have...

Q: My car's gas gauge jumps around

An erratic fuel gauge can be caused by a number of problems. The fuel sending unit in the gas tank can be bad/shorted. The gauge itself can be bad, or a short in the wiring between the sending unit and...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...