car hard to start after sitting for 30 minutes

Saturday, April 30, 2022 Edit

After you drive it and shut it off for 10 min. If its there replace the FPR.

How Does Idling Affect Your Car

These control the fuel mix and if its off it make a hard start.

. Pull the vacuum line off the FPR and check for presence of fuel. Before starting your car after it has sat idle for a long time be sure to check your engine oil level. The most common reason for a car not to start after it has been sitting for a period is that the fuel pump isnt doing its job.

Were starting here because fuel delivery is among the most common reasons for a car not to start especially after its sat for a while. And then the other day the dash indicator lights in the car went out and then came back in a few minutes. It acts like there is no fuel in the carburetor and needs to crank for several 4.

Check All Exterior Lights. Look for puddles of fuel under the car. This may be from a fuel pressure issue.

Check the fuel supply that is the flow and the pressure in the fuel rail to and from the throttle. Hard starting makes getting around difficult. After this when I try to start it it makes that noise like it is trying to start but the actual ignition doesnt happen.

There are lot of things that will cause this sort of problem. Indicates fuel leak back and fuel pressure drop. Watch pressure to see how fast it drops off after key off.

Example drive 30 minutes stop for lunch go back. When you shut the car down the cooling air stops flowing by and the coolant stops flowing through the engine taking heat away. When you shut off a warmed up engine fuel pressure needs to remain in the fuel lines.

My 73 350 4bbl Quadrajet is hard to start after it sits for more than a couple of days. So if your vehicle is less than about 35. If I turn the car off for.

Posted June 6 2012. This problem is closely related to vapor lock. Hard to start after sitting 30-60 minutes after engine is up to normal operating tempeture.

Check that your headlights fog lights high-beam. Bret Bodas on January 12 2010. Mario GutiérrezGetty Images 5.

In the morning it starts normal. However if I drive it around 30 mins stop the engine and. Check filter installation for seal not sitting properly loose fuel line fitting pump installed correctly flow wise filter installed correctly.

It could be map or maf sensors or o2. It usually takes me about 15 minutes to start it up again. Hard warm starts can also be traced to a leaking fuel pressure regulator FPR or fuel injector.

Or longer the engine. Thats because modern fuel injection systems. The hard starting is probably going to end up being something becoming heat soaked.

The problem is intermittent but is getting worse. There could also be a fuel line leak. Sometimes a fuel pressure dampener may cause the.

Looking like a cylindrical coil of wire basically solenoid is a. Hard starting when warm after sitting for 10 minutes. As others have noted the real problem is that fuel evaporates when the car is not driven regularly.

Couple this with a weak fuel pump and you get hard starting problems after. I have a 2002 f150 with a 42 v6 engine. If I start it in the morning -- no one has used it for about 12 hours -- the car starts perfectly with a smooth key turn.

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.

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