Why does my Car start cold instead of warm?

If the injectors were bleeding off fuel as you suggest, there’d be more of a problem with cold starts then warm. Reason being, with bleeding injectors, the longer they sit, the more fuel gets dumped into the cylinder (until all the pressure is bled off). The OP would see the issue more on the cold side than on the warm.

Why does the Cold motor start longer than the warm motor?

Reason being, with bleeding injectors, the longer they sit, the more fuel gets dumped into the cylinder (until all the pressure is bled off). The OP would see the issue more on the cold side than on the warm. Also, there shouldn’t be any “gaps to fire” in the injectors. If there are, they wouldn’t fire at all.

Why does my Car start on a hot start?

Have a look at this answer for more details on potential causes for hot start problems. The reason why this happens only for hot starts is because the fuel is more likely to vaporize as temperature increases. In order to avoid vaporization problems the fuel lines are expected to be pressurized during a hot start. Highly active question.

What causes fuel pressure to drop on a warm start?

The pintles can wear out and allow fuel to bleed off into the cylinder thus dropping pressure. This excess fuel in the cylinder can cause a flooding condition on warm start which the PCM doesn’t know how to deal with since it expects fuel pressure to be there and thus won’t immediately demand anything from the fuel pump.

Why does my Car start hard when the engine is warm only?

Valves are an important part in the distribution of fuel into the engine block, after the engine warms there maybe some blockage or expansion from heat. Be sure to check your distributor cap and other electrical connections, sometimes the slightest electrical sensor misread tells the vehicle it’s not working correctly when it really is.

Why does my Dyna hard start when hot?

You can spend a ton of money to only find the Least expensive things are the problems.. Hard starting when HOT, but the engine spins up fine, means either lack of fuel or weak, no spark. If your Dyna is EFI, your fuel pump is losing prime/pressure due to fuel line leak…look here:

How to diagnose a hard starting hot engine?

Holley offers tips on diagnosing hard starting engines that are already at proper operating temperatures. Some of the tips covered here are fixing vapor lock, fixing a binding or sticky choke, checking float levels, fuel percolation, and checking the accelerator pump system. Loading…

Is it hard to start a hot beetle?

Smelling raw fuel from the rear of a hot Beetle regardless of why WILL end poorly eventually. To clarify some- its really not a strong smell of raw gas, its just the faint smell you often get with a flooded engine.-not a “carbeque” waiting to happen by any means. Yes – I imagine its very hard to remedy with zero eyes or hands on the car.

Why does my Chevy Silverado 1500 start cold?

Starts fine cold because its in open loop and using extra fuel to run but once its in closed loop with the idle air control reset there just isn’t enough fuel to start right away. One way there is too much air and the other would be not enough fuel.

What happens to the engine when the engine is cold?

When the engine is cold the air fuel mix enters the cylinder and is compressed and ready for ignition, cold fuel, cold air cold cylinder= lower compression. Take a empty soda bottle fill it with 1/4 cup of cold water, put the cap on and shake it up for about 3 seconds, now squeeze the bottle, it should squeeze in easily.

What causes engine knock on a 4.3L Vortec?

Engine knock can be caused by a ton of factors, such as low-grade fuel, bad spark plugs, carbon build-up, etc. Engine knock is terrible for your engines internals and can cause serious damage to the pistons and to the cylinder walls. On the 4.3L vortec, the cause of the engine knock has not necessarily been figured out, still to this day.

Why does my MerCruiser not start when hot?

Sometimes even with a warm engine you may still have to partially open the throttle to start it, not necessarily pump it to prime but just crack open the throttle a fraction which will close the choke and squirt in a little fuel. Engine bogging down and quitting could be something unrelated.

How long does a Chevy 4.3L Vortec engine last?

3 vortec is a very strong and reliable motor, proven by it being the longest lasting production vortec engine. Generally, these engines are extremely capable of lasting up to 300,000 miles.

What kind of car stalls after engine heats up?

The Chevrolet Cavalier is a compact automobile produced from 1982 to 2005 by General Motors. car starts and runs fine until engine heats up to operating tempature, then it stalls, it will restart but keeps stalling until engine cools down. What can cause this? Answered!

What causes a car to stall in the morning?

Starts well in the morning but once it gets warm it jerks and slows until itn stops and stalls if you briefly switch off the engine for 3 seconds and restart it it starts well and moves for 3 to 5km and stalls again. It will do so all the way till you get home.

When does my Car start in the morning?

My car has done more than 300,000 kms, she starts perfectly first thing in the morning. 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. Once started it runs fine. Note: this happens intermittently throughout the day.

What should you do if your car gets hot?

Especially if the vehicle must be driven until it is hot before it shuts down. Something that may be worth a try is to allow the vehicle to sit running in a location that it can be monitored. If it stalls simply when it gets hot, them maybe allowing it to sit running for a period of time to see if it stalls may be beneficial.

Why does my car not start in the morning?

Used best quality fuel system cleaner 3-4 times when tank was empty (to diagnose the problem) Recently changed oil/oil filter (to make sure I’m using correct viscosity oil) The problem is still there. The reason why I’m not leaning towards fuel pump / filter is because first thing in the morning it starts perfectly.

Why does my truck won’t start after it get hot?

It is a 95 F150 with 5.0. I am having the problem you guys are talking about and trying to fix it. I’m the greatest when it comes to working on vehicles but I am not scared to do what ever because I love the learning experience. Today it started ran great got hot and died. Wouldn’t start back up.

Why does my Ford F-150 turn over when warmed up?

If the starter turns easily when warm, but doesn’t want to start, replace the O2 sensor. It is most likely the problem. I’m having trouble with my 87 F.I. 300 turning over when gets warmed up. Turns over, but laboriously at best. Like a boost of compression , yeah, right.

Why is my car engine hard to start?

The starter itself may not be cranking correctly due to the heat impacting the relays which drive the mechanisms (this was a common issue in old air cooled VWs, and with how some newer engines are crammed into engine bays similar things can happen).

Why does my 2.7L engine not start when hot?

I honestly have this exact same problem with my 2.7L. I can guarantee that something is becoming heat soaked when the engine sits for 5-25mins after being at operating temp.

Why is my Bug hard to start when engine warm / hot?

A intake leak will normally cause a rough idle or even stalling Hot or cold but a little worse when hot. If the engine runs and idles fine after you get it started tells me that something else is going on. Just remember you are up there and we are down here and don’t have a “hands on” deal.

Why is my car hard to start when warm axleaddict?

Look for any other condition that may overheat the fuel in your particular system Fuel vapor lock has practically been eliminated from modern fuel injection systems because of the high pressure under which they operate. Still, a worn, or failing check valve or leak in the system may allow air to enter.

When does engine start hard when engine hot maintenance starts?

Starts hard when engine hot Maintenance/Repairs starting, engines aghaafshin July 4, 2016, 8:08pm #1

What to do when your body temperature is too cold?

To treat hypothermia, get out of the cold as soon as possible and to a warmer environment. Remove any damp or wet clothing and start warming up the middle areas of your body, including your head, neck, and chest, with a heating pad or against the skin of someone with a normal body temperature.

How can you tell the difference between cold and warm water?

Prepare a work surface that can get a little wet by laying down a towel and removing any objects that should not get wet. Fill one pot with very cold water. (You can also use room-temperature water and add a couple of ice cubes to cool the water in this pot.) Fill a second pot with room-temperature water. Fill a third pot with warm water.

Why do you feel cold when your body temp is high?

As with high temperatures, don’t rely solely on the thermometer reading of environmental air for gauging cold temperatures. The speed of the wind and external body moisture can cause a chill that dramatically changes your body’s rate of cooling and how you feel.

Is it normal to feel cold all the time?

Since feeling cold all the time can be a sign of a more serious medical condition, it’s important not to ignore these symptoms. If you feel cold frequently even when you’re in a warm place, or long after you’ve come in from cold temperatures, check with your doctor to find out what might be going on.

Why is my hot water running warmer than my cold water?

The cold water was starting to run warmer. No wonder they call him “super”. One day, after using the shower, we noticed the cold taps were running lukewarm water from every faucet–a problem I would come to learn is called “hot-cold crossover”. This wasn’t some simple, obvious leak, either–this one would take some detective work.

Why does my Car start cold instead of warm?