Can you please tell me why my car does not start straight away when it is warm? It does start straight away in the morning. Once I have driven for an hour or so and when i switch off the engine for a stop for five to ten minutes it takes about five to six key turn before it starts. I will be very grateful for our advice. thank you.
If the engine does not turn over
When I say that I mean, you turn the ignition key to the start position and NOTHING happens, no clicking noises, no RRR RRRR RRRR nothing.
If this is happening I would start with the battery. Do the headlights come on bright? If so, OK, probably not a battery problem. Are the battery cables tight and clean?
I would be looking at:
2. Do you have a security alarm? Can you try another ignition key? Disable alarm?
3. Ignition switch problem under the dash, or ignition lock cylinder (where you insert the key)
Engine turns over but won’t start
If the engine spins over and over and over but won’t start then I would look at the fuel pump to see if it is pumping the proper volume and pressure to the engine. The fuel pump is inside the fuel tank, and sometimes you can hit the bottom of the tank with your fist as someone cranks the engine over.
Just because you hear the pump working, or see fuel coming out at the engine does not mean you have enough fuel PRESSURE or volume to start the engine.
Go to your local auto parts house and rent a manual fuel pressure gauge and test the fuel pressure AT the engine. There should be a schrader valve (like a tire air pressure valve) that the gauge will screw on to.
Both items (starter and fuel pump) are electrical parts and heat can cause those items to fail. Let them cool down and they seem to want to work properly until they get hot again.
Sometimes a light tap with a block of wood on the starter motor (usually under the vehicle on the passenger side, or on top of the engine area on the passenger side, or fuel pump inside the fuel tank) can jump start a worn out electrical part. If it works after the tap, then you need to replace that part.
If this is a Honda or Toyota, you might want to check the Igniter inside the distributor, which also fails when it gets too hot.
On an American car, this can be a problem with the ignition module or ignition coil, crankshaft position sensor, those part sends electricity to the spark plugs and can fail when it gets too hot. You would need to check for spark at the spark plugs to determine if you have spark.
A broken timing belt can cause this no start issue too. The engine will spin over much faster and sound much different than normal because there is no resistance inside the engine….nothing is spinning over inside, just the starter motor basically.
Watch this video to learn more about these types of car won’t start issues
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