my 96 blazer misfire a lot when is cold in the morning it does it a certain rpms only after it warms up it doesnt do it anymore i checked for bad plug or crack dist. cap but everything sseems fine i also get the p0300 code multiple cylinder misfire
any ideas?

 

Punt!!!!!!!!


Misfire only while cold indicate your problem is related to teh cold start procedures. IAC is the first that comes to mind, EGR second. DO some reading up on the function of both and compare it to your operation. Keep us posted and by all means ask more questions, let me know what you find out and what your thoughts are.