Hello, Car will start until warm then shut off then won't start again until cool then same thing happens over again

SOURCE: i have a 2000 camaro ss shuts down when it warms up

check for intake leaks.

timothy hester

• 760 Answers
• Posted on Oct 31, 2010

SOURCE: car starts runs fine once warm dies and wont

check ignition module,if ok check starter,if ok could possibly be the ecm.











TIM.....

SOURCE: CAR RUNS FINE UNTIL IT WARMS UP, THEN IDLES ROUGH

It's tough to be precise with this amount of information, but the issue is obviously partially related to your choke function. Your year and engine is probably a 2.2 or 2.3 liter inline four, and it may have direct port fuel injection. So, the choke is not like a simple butterfly flap on the old carburetors, but the function is the same. The computer commands a heavier air/fuel mix during warm up and then tapers off to a standard mix when operating temperature is reached. There is also a "closed loop" operation when the computer is actively managing the air/fuel mix and an "open loop" operation when it is not.

Since your engine is failing to idle when it reaches operating temp, and since it seems to run okay when the choke function is still commanding for a rich mixture, it may indicate that your fuel delivery is much too lean during normal operation--so lean, in fact, that the engine can't run! In other words, the rich mixture during warmup may be masking the underlying problem.

There are an array of sensors for the computer that tell it when the operating temperature is reached and what the air-fuel mixture is. The computer uses these inputs to determine it's actions. When these sensors fail they may or may not set off your check engine light. If that light is on, you can use a code reader to help you narrow down where to look for a problem. If it is not on, you need to do some deeper diagnostic work, sometimes testing each sensor and wiring harness one by one.

It's impossible to say what to look for without more information, but the general issue does seem related to fuel delivery and/or the computer's ability to know through the sensors what the engine needs.

SOURCE: 1995 Chevy Lumina Minivan. Transmission stops

Is the fluid level OK? You can check this with the engine running and parking break set. Gain access to the eigine compartment and find the dip stick for the transmission. Please be careful of moving parts when the engine is running. Pull it out and wipe it off with the clean towel. Install the stick and remove it and see if you have a level reading. If not, fill it with the correct Dex type GM fluid that may be stamped on the dip stick. You can ask for help at an auto parts store is you need assistance on the fluid.

If this is OK or your vehicle is not equiped with a transmissing dip stick, you might want to have the transmission serviced (Fluid and filter changed) The transmission shop can also advise you about the mechanical condition of your bands in your transmission and make adjustements if needed.

Hope this helps.

SOURCE: "2003 Chevy Impala won't start". Car would not

The alternator is not charging,or the battery wont take a charge.If all accessories work fine when its running after you've boosted it,its likely the battery.
John