What causes flat spots when accelerating?
Water in the fuel, dirty injectors, fuel octane rating incorrect, vacuum leaks about the manifold area, the cam belt and valve timing being out or bent, slightly burned valves, the throttle body being very dirty, water in the computer or corrosion on the connectors, or the ECU random access memory being faulty are some …
What causes erratic acceleration?
An acceleration problem is usually the result of insufficient fuel, air, or spark during the combustion process. Worn-out spark plugs or the electrical cables attached to them are one of the most common causes of cars stuttering.
What causes flat spot?
From rolling tires to flat spots It’s especially likely to occur when the tires experience a dramatic swing in ambient temperatures, the car is parked overnight in cold temperatures, or the vehicle is in storage for a long time. Another factor is tire pressure, and whether the tires are underinflated or overloaded.
How long until tires get flat spots?
If you’re wondering how long before tires get flat spots, the answer may surprise you. According to Edmunds, leaving a car parked for as little as one month may be enough time to develop severe tire spotting.
Do tire flat spots from braking go away?
First, if you lock your tires up in severe braking, you could “flat spot” the tread by wearing away a large amount of tread in one particular area. This flat spotting will eventually go away, but it may take a good bit of driving.
What’s the problem with stumble on fast acceleration?
The car starts, idles and runs ok under gentle acceleration. My problem is a severe stumble on fast acceleration that does not resolve no matter how much adjustment I make to Accel Pump, or Fast Accel inputs. Current settings are Accel Pump 170 = 25.0 and Fast Accel 170 = 50.0
Is the engine bogging under acceleration a good question?
Is this a good question? Try holding the choke while running at a good speed (15-20 mph). If running improves, you probably have an air leak in the engine. + very well stated question. You should write manuals 😉 I find none of the answers acceptable except the condensor because the problem occurs when the engine gets hot.
What happens when a car hesitates to accelerate?
A vehicle that struggles or hesitates to accelerate may be unpredictable and moments of hesitation may be coupled with equally dangerous moments of surging or unexpected acceleration. When a vehicle is hesitating during acceleration, it should be inspected by a mechanic.
Why is sluggish acceleration dangerous in a car?
Sluggish acceleration can be annoying for drivers who expect more power form their car, but it can also be dangerous in certain situations. The unpredictable nature of an engine that hesitates can increase the chance of a potential accident especially when trying to merge in and out of heavy traffic.