Sounds like you need to clean the carb, adjust the choke and put in a new fuel filter and air filter. Check your PCV valve too and make sure it's not stopped up. More description of your problem is needed. Does it hesitate when you first press the accelerator then run normally after a second or two? Do you have to do anything to get it to stop hesitating? Does anything seem to make it better or worse? The above suggestions are a great start. How long has it been since this ol girl has had a tune up? Is the vacuum line running to the spark control computer intact and not leaking? Has anyone adjusted the ignition timing? (If not, don't. Check the vacuum lines, especially running to the spark control computer.) I have this same year and model, and it hesitated badly when I first got it. My problem turned out to be a faulty vacuum line running between the carb and the computer. After 21 years I guess they get brittle. ;-) Good luck.
Try draining the oil after the engine has warmed up first.
Mine is between 500 and 600 rpm's after the engine is warmed up.
Needs a new thermostat
if it was cold then ur engine wasnt warmed up that is one reason. or it was to hot out and ur radiator isn't working properly and it overheate. did it start after a while??
what causes engine to missfire when warmed up on my 2002 accent
Pistons lacking in skirts. If it continues after the engine is warmed up then you have something more severe going on.
NO, it will not damage the vehicle engine by turning the heater ON before the engine has warmed up fully.
The year and engine size would help us help you.
It should idle at aprox 650 rpms warmed up.
The engine on your 04 5.3L Chevy Tahoe could be knocking until it warmed up because of a bad fuel-air mixture. . The wrong oil could also be a cause.
sounds like your ignition module
You may have a bad cat (and/or engine is not properly tuned). Make sure engine is properly tuned and do not use heavy acceleration until engine is warmed up.