Why does my Car Crank so long before starting?
It just cranks for longer before starting if it sits for a few hours (temperature dependent – longer crank when cold outside, less so when warm). I can immediately shut the car off once it has started, and it will start immediately thereafter (unless it sits for another few hours).
Why is my car hard to start cold or runs poorly?
Those are your main causes of cold start enrichment failure. I suppose a fuel pump could be weak, and not be able to deliver enough fuel. Or a fuel pressure regulator could be going out. Generally speaking, any other cause of poor running/a hard start cold would also cause problems while the engine was warm.
When to know if your cold start injector has failed?
If your vehicle begins to display any of the symptoms above, or you suspect that your cold start injector has failed, have the vehicle diagnosed by a professional technician, such as one from YourMechanic, to determine if your car needs a cold start injector replacement. fuel system. injectors. Starters.
Why does my vacuum have a hard cold start?
Repair the vacuum leak, and you may just have fixed your hard cold start, or poor cold running condition. Another common cause of a hard cold start, or poor running while cold is dirty intake valves. Over time intake valves become coated in a black gooey substance.
Why is my engine hard to start or extended cranking?
So if the engine is warm or cold, this sponge has to be saturated and begin to drip before the engine will start and extended cranking is one of the classic symptoms. By trying the fuel additive and thinking of this as a diagnostic procedure, if your problem gets better, continue to use the fuel additive. No change, stop using the additive.
Those are your main causes of cold start enrichment failure. I suppose a fuel pump could be weak, and not be able to deliver enough fuel. Or a fuel pressure regulator could be going out. Generally speaking, any other cause of poor running/a hard start cold would also cause problems while the engine was warm.
What causes intake valves to stick on a cold engine?
This black gooey substance causes two problems, it soaks up fuel, and causes intake valves to stick. Both problems cause all sorts of havoc on a cold engine. The extra fuel the computer is trying to send to the cylinders is absorbed by the goo, thus robing the cylinders of the cold start enrichment they need.
Repair the vacuum leak, and you may just have fixed your hard cold start, or poor cold running condition. Another common cause of a hard cold start, or poor running while cold is dirty intake valves. Over time intake valves become coated in a black gooey substance.