Hard start in warm weather
My 96 ZJ, 4.0 straight 6 has developed a problem. Last summer when the temp warms up to about 80 degree i get an extra long crank before the engine turns over. After it turns over it runs fine, little stutter at first but maybe for a second or 2. Since last summer I have changed the transmission, the O2 sensors (both), plugs, wires, coil, starter, water pump, tps sensor, and I just picked it up from the garage after having a motor swap done due to a bad piston bearing. Today its about 80 degrees and I went to start it, long crank time but it does eventually turn over...whats left for me to change to fix this?