car trouble starting when hot
The Effects of a Bad Relay. The real issue is that the wiring for your starter isnt quite cutting it.
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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.
. It stalled once at a stop light and would only start after cycling the key several times and 14 throttle. Technically the car still should start as it was when it is a cold morning. Testing the Main Relay.
Its easier for the low temperature to. Most auto part stores will check the. There are varied reasons why you may have a hard time starting the engine when cold or hot.
In order for an engine to start and run cold it requires more fuel than when it is hot. The starter wires gauge is too small and when it gets nice and hot it has too much resistance to effectively activate the starter. 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.
If the car does not get the proper enrichment when cold it will have trouble starting or run poorly until the engine warms up. 6 rows Hot Starting Problems The car starts OK when cold Hot starting problems have five principal. A shop might be able to set you up so you can test for spark yourself when it happens.
A car engine would keep on gaining temperature until a while after it was shut off. I had a similar problem would intermittently not start when warm. Does Your Honda Have Trouble Starting When the Engine is Hot.
When your car is ideal it can result in the chemical in the battery to hold back. This will make the airfuel mixture too lean and make the engine hard to. 6 Things That Cause Car Hard To Start.
This is perhaps the most common fault to appear under this condition. So I changed my fuel pump and then it started but still had trouble starting when engine is hot. If the tool is adjusted to 30 thousandths and the spark starts jumping around then the coil would need replaced.
This isnt really a problem with newer models as most new cars are fitted with fuel injectors. A common possible cause is that the key or ignition cylinder is worn theres a low battery in the transmitter or the transmitter is defective. You may notice the starter motor not working as usual or weak.
As a result the. Last month my car wouldnt start It cranks fine. The starter cranks powerfully but the car will only come to life when pumping the accelerator sometimes itll start but at very low revs until I pump the accelerator.
2 people found this helpful. Using the wrong oil. Major vacuum leak An open EGR valve disconnected vacuum hose PCV valve etc can create a large vacuum leak and allow too much air to be sucked into the engine.
Enrichment meaning a higher ratio of fuel to air. You need to keep the fuel tank full or at least half full during the colder months. Check your battery first.
If your engine gets too hot certain vapours can cause obstructions which can make it harder for fuel to circulate. If vehicle is equipped with a smart key and theres no start or its unable to detect the key. Low Level Of Fuel.
It could be as a result of the bad igniter bad ignition coil or bad ignition switch. Either I wait for half an hour for the engine to cool or get the car push started which I am able to do easily provided there. This problem is caused by the air filter more often in winter because of high-temperature changes.
You have two coolant sensors on that car there screwed into the head by where the upper hose goes on. This lack of air is caused mostly by a clogged or dirty air filter. I have a Ford Focus MKII British market with the 18 Duratec Engine that is very hesitant starting when warm.
You might need to carry out a simple spark test. But the air filter can be blamed mostly. 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.
Then have the starter motor tested if necessary. Car wont start when cold but starts when warm 1. It sounds like the ignition coils are getting hot and when the engine is shut off the engine will not restart due to an ignition coil that will not produce a spark.
This condition where the engine needs more fuel cold is called cold start enrichment. On a hot day when it doesnt want to start to check to see if it getting spark and the proper amount of fuel. Other possible reasons for hot start problems.
This of course will make it more difficult for your car to start. 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. Remove one spark plug wire at a time and check for spark on the engine with a spark tester tool.
Before you rush into it you need to know that there are few other reasons why you might experience a start problem while the engine is hot. Starting System And Battery. Since the engine is still technically cold not at operating temps and the only thing that should be warmer is the ambient air temperature.
I tested the fuel pressure all was normal. Pouring wrong oil in your car is like feeding wrong food to a kid. I replaced the temp sensor fuel filter fuel pump spark plugs etc.
Before you condemn the starter as bad you should perform a system diagnosis of the battery cables and starter. George_San_Jose1 October 6 2017 335am 19. You want to replace the bottom one that has two wires going to it a black wire and a yellow wire.
Whether your car is old or. My car has a peculiar problem - it starts very well when the engine is cold but refuses to start when the engine is hot. A very common reason for this symptom is a problem with the main relayan electronic device that.
Its a defect in your wiring harness. I have a 98 mustang gt which was easy to start when cold but hard to start when engine hot was happening for a couple years. To repair simply cut a new key replace ignition cylinder replace transmitter battery or reprogram or replace the transmitter.
Although the problem is the same different Honda models have different symptoms if. The car can hesitate to start because of the air filter especially if not enough air enters the engine.
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