car has trouble starting when warm

Unfortunately to test the igniter itself you. Save with a Membership.


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Check if the car have the thermostat in the cooling system because in cold weather the thermostat close the water flow in the cooling system radiator head of the motor and the car gets temperature faster to warm the engine to operational temperature.

. Thanks for any help. Starting problems when engine is warm I posted this problem beforebut didnt get a definite answer. If the car does not get the proper enrichment when cold it will have trouble starting or run poorly until the engine warms up.

You want to replace the bottom one that has two wires going to it a black wire and a yellow wire. Have a look at this answer for more details on potential causes for hot start problems. If I temporarily shut down my car then come back to a warm engine and try to start it the engine cranks but has trouble starting.

Since the engine is still technically cold not at operating temps and the only thing that should be warmer is the ambient air temperature. Then you can test the coil itself. My car starts up fine when the engine is completely coldor completely warmed upbut when its in the middlelike parked for 30 min after drivingits really hard to start itthe engine crancks for 15 sec or more than it finally starts if u give it a little gasIt started doing that after i.

Before you condemn the starter as bad you should perform a system diagnosis of the battery cables and starter. Ad Chat 1-on-1 with Experienced Car Mechanics Online. Starter Will Not Crank When Hot Heat Soak If your starter easily cranks a cold engine but drags or cranks very slowly when hot there may be a heat soak problem.

I have to either pump the gas a little or just crank and crank till it starts neither of which I like to do. Other Possible Causes of Hot Start Problems. On a hot day when it doesnt want to start to check to see if it getting spark and the proper amount of fuel.

In order for an engine to start and run cold it requires more fuel than when it is hot. Technically the car still should start as it was when it is a cold morning. This condition where the engine needs more fuel cold is called cold start enrichment.

Up to 8 cash back There are many causes of hard starting but illustrative ones are a faulty engine coolant temperature switch sensor malfunctioning idle air control IAC valve vacuum and EGR leaks inadequate fuel delivery or pressure clogged fuel filter injectors and contaminated or old gasoline. An increase in viscosity of engine oil in the cold also causes slow cranking that leads to taking time to start or warm up engine. It can also be caused by a bad starter but if it cranks but wont start it could be caused by a faulty spark plug or a clogged fuel filter.

Enrichment meaning a higher ratio of fuel to air. Any suggestions would be greatly appreciated. You could also have a bad ignition switch a bad igniter or a bad ignition coil.

To test for spark you should first perform a simple spark test. Once started it runs fine. When the engine is too hot fuel cant circulate properly due to the way in which vapor obstructs it and therefore the engine wouldnt start as easily as it should or it wouldnt start at all.

Before you dive in too fast its also possible that the car has more than one thing causing a hard start. Warm start problems as opposed to no-crank problems which are caused by other issues are usually something electrical fuel pump ignition module crank position sensor most often. A car engine would keep on gaining temperature until a while after it was shut off.

My car has done more than 300000 kms she starts perfectly first thing in the morning. Using lighter viscosity oil such as 10W-30 is a better method to solve this problem. If you have to hold the gas pedal down to start it you most likely have a bad coolant temp sensor really common on that car.

You have two coolant sensors on that car there screwed into the head by where the upper hose goes on. The car has had idling problems when you go to start the car and the forums that I have been reading have been talking about crankshaft sensors problems and fuel problemsAlso when tried to restart the car when I got. After I leave it running for a while it most of the times throughout the day takes about 5 seconds to crank before actually starting.

To it it would not start. The most common reason a car wont start is due to a dead car battery or loose car battery terminals. A shop might be able to set you up so you can test for spark yourself when it happens.


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