99 ranget 3.0 problem driving me crazy only on first start up itll stutter hold the gas half way and itll smooth out no smoke or codes starts fine after first start up been told many things thanks

SOURCE: 1993 jeep grand Cherokee...stutter in drive at low rpm

Hello;
Have you checked your fuel pressure and volume? You may not be getting the ful sufficiently to the injectors. Also, change your fuel filter if you haven't already. Is the check engine light on?
Thanks;
Rich
RPM Northwest

SOURCE: 1997 ford e 350 v-10 stutters when accelerating. Smooth otherwis

Water jackets pretty tight on heads. Replacing engine right now for this problem on customer work van. Pull plugs and look for any cylinders with antifreeze in them. This truck had 250k and same problem.

SOURCE: 99 ford escort se gets no power and stutters.

When was the last time the timing belt was replaced on it? The cam timing may be retarded back from belt stretch creating this problem. Another thing to check out is if your catalytic converter may be partially plugged up.

SOURCE: 99 Expedition - Stutters and loses power when accelerating

My was doing the same thing, it was an EGR valve and a misfire on the #2 cylinder which required a new spark plug and a coil pack
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SOURCE: Code po101, hard start when hot (have to hold W.O.T. to start) & stumbles on accelertion. Changed MASS sensor, no help.

Basically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined range of the calculated MAF value for more than 4.0 seconds.  I would try cleaning out your MAF sensor with some carb cleaner and reseting the check engine light to see if it comes back on.  If it does, get back on here and let us know and we will walk you through some other things you can try.  Cleaning it out will be the easiest/cheapest thing for you to try right now.  Good luck.  Thanks for an honest rating and for using FixYa.