truck idel will start to go up and down about 15 to 20 sec. after I stop. changed out egr valve and sencer and the iac valve but did nit fix the problem.Related Questions2000 Ford F150flooding out can't accelerate. I've changed the EGR valve, PCV ell's on tube, and o-rings on fuel injectors and now it wont crank at all.2000 f150changed the egr valve and sencer and my idel will rise and fall when I stop or put it in park. if I stop and do not put it in N when the idel starts to go up and down it will some times die.Ford f150My 2007 ford f150 is stuck in limp mode. I've changed the cam sensor and tps. I so cleaned the throttle body and still goes right back to limp mode. It also reads multiple codes after changing the tps. What should I do next?