What does it mean when a car engine turns over but won't start?
You need:AirFuelSparkIn order to run an internal combustion engine.So, if the car will turn over (starter will rotate the engine), but not start; it means that one or more of these necessary factors is missing.Easiest to check is Air. Make sure there's no blockage at the intake or air filter housing...or in the ductwork between the two.Fuel is a little more difficult. On a carburated engine, you can check for fuel flow in the carb. If there is fuel in the carb, but it's not being ignited by the engine, you will smell fuel. Same for some injector systems, you can smell fuel in the intake if any is flowing. Other injection systems might require pulling an injector nozzle to check for fuel flow and pressure.Spark is also relatively easy. Pull one of the plug wires, stick a bolt roughly the same diameter as the spark plug terminal into the terminal socket on the wire, and hold it (with a pair of long insulated pliers) near the engine block....And prepare for a mildly painfull electric shock if the spark is, in fact, happening.
Car turns over a lot before starting...?
What could cause my car to turn over a bunch before actually starting. It happens in the cold as well as normal temps. I've heard that dirty sparkplugs can cause this but I'm not sure how to correct this. It's a '97 4 door honda civic.
My car turns over a lot before starting...?
I have a 99 pontiac grand am with about 160,000 miles. It has always taken a few cranks to turn over, but as of late it is getting longer. Right after it catches i have to give it some gas to get it running otherwise it will probably just quit. After i get it going for a few seconds, it runs perfectly fine. How do i fix this so it starts up right away? Thanks. Also, it has a new battery and the fuel filter was changed recently.
Why does my car "chug' when I first start it up?
I have a 2002 Hyundai Elantra GLS auto. transmission. I have noticed when I pump gas, my car will have a really rough start, or it won't turn over until I pump the pedal a few times or let it sit for a while. Even then, I have to rev the engine a few times after I'm able to get it to turn over. Now, when I start my vehicle I need to rev my engine so my car doesn't "chug" and today it completely stalled out on me. I was able to turn it off and on again, but I was hoping to get some insight before taking it to a mechanic. PLEASE HELP!
How does turning on a car's headlights before starting the engine help in cold weather?
Leave all unnecessary electrical items off. Whoever told you to turn on the lights was "pulling your chain". Cold is very hard on batteries and the less the draw the better off you are.
Should you press the gas pedal when starting a car with a fuel injected engine?
The general rule is you do not need to press on the gas when starting a car with a fuel injected car, the startup routine set by the ECU is to first prime the pump and fuel lines and then as you turn the key (or press the start button) the starter turns over the engine using electricity from the battery, the car’s computer (ECU) then will have a particular injector sequence routine to get the correct amount of fuel for its initial startup and turnover.Pressing on the gas pedal while starting a car with a fuel injected car will have different results depending on the car and how recent it is. Older cars used a cable attached to the gas pedal which when pressed would pull a throttle wire and eventually would open the butterfly valve in the throttle body, letting more air into the engine. A system of sensors (such as a MAF, MAP, Throttle position and O2 sensors) would detect the increase in airflow and compensate by adding more fuel.Newer more modern cars now use something called “fly-by-wire” which means that rather than using a physical cable running from the gas pedal to the throttle body, it has a throttle pedal position sensor attached to the pedal, which then sends a signal to the ECU and it will then decide what to do with that input and send a signal to a throttle body actuator which then opens the butterfly valve.Why this matters is most modern ECU’s have protection routines that ensure that if you happen to be pressing the gas pedal during the startup routine, it will simply not allow fuel to be injected into the engine. The starter will just keep turning over the car’s engine, but since no fuel is being added, you are lacking one of the key elements to run your engine (fuel, spark and air).What your car does in this circumstance largely depends on the technology being used and how your car’s manufacturer handles the even of having the throttle pedal pressed during startup, but as a general rule, it is never recommended to be pressing the gas pedal when starting up your car.