Why does my car stall when it warms up?

Why does my car stall when it warms up?

Well, there is an ignition problem that can cause this when the engine gets hot and it stalls. It’s caused by a lack of spark which can be either the ECU’s fault (on EFI cars), or the coil on pretty much any car. Heat causes expansion. An engine needs more fuel when it’s cold than it does when it’s warm.

Why does my car stall in cold weather?

Cold stalling problems are the most common because the engine needs a richer fuel mixture to maintain idle speed until it warms up. Intermittent cold stalling problems are almost always fuel-related. The engine may also be leaking vacuum around the base of the carburetor, vacuum hoses or the EGR valve.

How does a warm engine work when cold?

Runs fine when cold Warm engine idles rough and stalls. Runs fine when cold The majority of idle issues occurring after battery disconnection can be resolved with a throttle cleaning. When the battery is disconnected the computer loses it’s adaptation for the idle air bypass and the idle air control valve resets to it’s default position.

How to know if your car is warm or cold?

After spending an hour meticulously cleaning the throttle body and plate, I put it back together to give it a shot. Couple of notes: Initially, it ran fine till it warmed up, at about 1200 rpm , then back to the terribly rough idle…. feels like it’s missing, too. On several cylinders.

How long does a warm engine idle for?

With a steady throttle, it fluctuated between 3 and 3.5 for a couple mins, then bogged out and stalled. Next time I started it, it went to 2k intially then started hunting between 1k and 1500, with about a two sec interval. After a couple mins, fluctuated around 750, but not steady.

Runs fine when cold Warm engine idles rough and stalls. Runs fine when cold The majority of idle issues occurring after battery disconnection can be resolved with a throttle cleaning. When the battery is disconnected the computer loses it’s adaptation for the idle air bypass and the idle air control valve resets to it’s default position.

Why does my car not start after warm?

Car will sometimes not start after warm. When i start my car, for the first time during the day- I have no problem. When I go somewhere and shut it off, sometimes it won’t resatrt. It doesn’t seem to matter what the weather is outside, it just does it when it feels like it.

After spending an hour meticulously cleaning the throttle body and plate, I put it back together to give it a shot. Couple of notes: Initially, it ran fine till it warmed up, at about 1200 rpm , then back to the terribly rough idle…. feels like it’s missing, too. On several cylinders.

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!