I have a 1989 Dodge Spirit with the 2.5 4 cyl, non turbo, I changed the coil, rotor, spark plugs, wires, o2 sensor, egr valve, and while driving at moderate speeds the car :banghead: will start to miss like maybe the tranny is slipping. I checked the fluid levels and all are good except I noticed that there were some airbubbles in the fluid. Does any one know what is going on? :banghead:

check your iac had a daytona with the same problem as for bubles in the trans probly wrong fluid if it is foming some is normal try flushing it at a shop with correct fluid

sorry to sound dumb what is a iac?

Idle Air Control valve. Also, make sure you have the right spark plugs in the engine that have the correct heat range; a plug w/ the wrong heat range will give you that same problem. Champion's RNCY1134 is the best plug to use on that engine.

iac=idle air control i know it hapens when driving but if the iac is stuck could cause problems

Thanks for all the posts, it turns out the last mechanic I had put in the 4 prong 02 sensor and it was the wrong one, the car was running lean and it was changed today and :lol2: badda bing it is working great