Is Reving a car bad when starting?
Once the car starts, you CAN rev it up to charge the battery faster, but the best way to do that is to just drive it. TOM: Depending on how dead the battery was, you may need to drive it for 20 minutes or a couple of hours. If you just left the dome light on, 20 minutes or half an hour of driving should be enough.
When to Rev the engine in a car?
Most modern vehicles have the rev limiter, which is preset by the manufacturers, and they restrict its maximum speed. Before you rev the engine up, it should be running; hence you should turn it on. Once the car is on, allow it to idle for 20-30 seconds. During this time, oil circulates to all moving parts of the engine.
What should I do if my engine is making a loud noise?
The Fix: Replace air conditioning compressor. (This is not a DIY job.) The Symptom: A loud exhaust noise that may be coming from the front or the rear of the vehicle. Possible Cause: Worn out muffler or exhaust pipe. The Fix: Replace muffler and/or pipes as required.
Why does my car make a popping sound when I start it up?
The Fix: Check firing order and place wires on the correct spark plugs. The Symptom: Engine hesitates, and a popping sound comes from the engine. When you step on the gas, the engine bogs down or takes a second to respond. You may notice a general lack of power. The problem may occur when the engine is hot or cold or when you are low on fuel.
What kind of noises do car engines make?
Here are the 5 most common engine noises made by the engines and their potential causes: 1. Engine knocking sounds This sound is usually heard as you drive your car, changing gears and accelerating. The sound seems like something inside the engine is knocking hard on it.
When do you start the car, the engine revs?
Car engine revs way up immediately upon starting engine. Q: Car engine revs way up immediately upon starting engine. When starting the engine, it sounds like you have your foot pressed to the floor on the gas pedal as soon as you start it, without even having your foot on the gas.
What does your car engine sound like when you start it?
When starting the engine, it sounds like you have your foot pressed to the floor on the gas pedal as soon as you start it, without even having your foot on the gas. Then it idles down, but then sometimes that idle is rough, or loping. My car has 226000 miles. My car has an automatic transmission.
Why does my car Rev at high RPMs?
My car used to run fine, but recently it started revving high. The car doesn’t rev only at startup and then returns to normal–it is revving constantly very high. At each stop light, it would go to high RPMs of around 2000 and then it would keep revving, while the engine seems to lose power.
Why does my car make a loud revving noise?
Then, I would slowly shift gears, but as soon as I gave it gas, it would rev high again and make loud noises. Everything else seems fine and there are no check engine light or any other warning lights on the dashboard. What is causing this revving? The most common cause of this revving is either a stuck throttle or the mass airflow (MAF) sensor.