03 Dakota, 3.7 has a stumble when it is first started in the am, runs perfect when it hits operating temp. first thought was the temp sensor. not. Checked it with the scanner this am, iat and temp at ambient temp, no codes, new tune up, 44k on the truck, anyone have any ideas?

 

Bad coil, moisture from sitting over night, shorting out, when it warms up it drys out and runs normal.

 

ok,,replaced the coil, no change, rescanned the unit, misfire on all cylinders cold, runs perfect when it hits 185 deg. i am leaning towards a pick up coil in the distributor..anyone have infoe on resistance etc. on the pickup?

 

do a tune up, cap,rotor, wires plugs.....
should probly clear it up