Why does my car surge at a stop?

Why does my car surge at a stop?

I experience it as well and it’s when the car is still cold. If you try to modulate the brake pedal easy, it will surge. I think this is normal, it’s to help the engine warm up faster. When the temperature gauge is showing more than half warmed up, the car begins going into neutral again at a stop.

Why does my car stop at a stop light?

When stopped waiting at a stop light, the engine RPMs will drop a bit and it sometimes stalls out. This is a common sign of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and…

What causes a Chevy Cruze engine to start surging?

My 1.4 L runs as smooth as glass when cold idling at around 1,400 rpm, then tapers down to the 600 range when warm. If modulating the brake pedal causes surging, sound like a vacuum leak. Fuel injection is backwards than a carb, leaks in a carb causes roughness, injection, the engine will speed up with a leak.

Why does my Chevy Cruze go into neutral when I stop?

Until the engine has warmed up, it doesn’t seem that the trans. is shifting into neutral at a stop either, and you have to be hard on the brake to keep the car stationary. Maybe uneven brake peddle pressure is causing the engaging / disengageing feeling?

Why does engine surge when car is at a stop?

Common reasons to increase speed might include when the transmission is placed in gear, when the air conditioner is selected, when power steering is under high demand (sharp turns), when large electrical loads are placed on the charging system, and of course, when the engine is cold.

How to fix check engine warning light while driving?

Start with the vehcile on level ground, engine “OFF” in park with the emergency brake set, wear protective gloves and eye wear for safety. Step 1 – If a check engine warning light has come “ON” while driving, the computer will need to have the trouble codes read to help fix the problem.

How to fix a surging engine in a car?

Easy step by step guide on how to repair an automotive engine that is surging, this information pertains to most vehicles and is listed in the order of popularity. Start with the vehcile on level ground, engine “OFF” in park with the emergency brake set, wear protective gloves and eye wear for safety.

Can a vacuum line cause an engine to surge?

Learn more Step 5 – If a vacuum line has caused a leak the engine will surge, as vacuum lines age they can become brittle and fall off the engine or accessory. Learn more Step 6 – If an air intake boot becomes torn and develops a leak it will cause the engine to surge.