What can cause an engine to hesitate?
Common Causes Of Engine Hesitation Include:
- Dirty Air Filter.
- Stuck Or Failed Mass Airflow Sensor (MAF)
- Clogged Or Leaking (EGR) Valve.
- A Failing Ignition Coil.
- A Failing Throttle Position Sensor (TPS)
- Clogged Fuel Injectors.
- Dirty Or Clogged Fuel Filter.
- A Failing Oxygen Sensor (O2)
What is engine surge or hesitation?
Hesitation Definition – An engine hesitation is an interruption of continuous power during acceleration. When a engine is hesitating it will cause the car to lunge or surge which will cause a sudden jerk as the car slows down.
How to solve engine hesitation and stumble problems?
One way is to divide the problem into 2 parts- one which involves locating “conventional ” faults and the other deals with the computer controlled aspects. Conventional fault tracing involve basic checks such as vacuum leaks, bad fuel, wiring faults, and worn or fouled spark plugs, loose alternator belt or faulty alternator.
What causes a car engine to hesitate and hesitate?
Another common cause are dirty fuel injectors. If varnish deposits have built up in the tips of the injectors, they won’t spray as much fuel as they normally do, or will “dribble” fuel instead of spraying a fine mist. This creates a lean fuel mixture and conditions that are ripe for stumble and hesitation (also misfire).
Why does my Mini engine stumble while accelerating?
One common problem MINI drivers have encountered is an engine stumble occurring while they are trying to accelerate. Engine stumble is the sudden and inexplicable hesitation or loss of power in your acceleration.
What causes loss of power in an 8.1 engine?
The problem with the 8.1 engine in a motor home is the 25 foot fuel line running right above the exhaust on the left side. You have a sealed floor right above the frame rails. When driving slow or lots of stopping at lights the fuel will boil in the line causing loss of fuel pressure. It can get 180 degrees under where the fuel line is.
https://www.youtube.com/watch?v=EaEngPzgn1E