Hi, My truck is a 99 2wd reg 2.4 or (2rz?) my idle shifts high and low at red lights etc... mainly when the A/C is on and you can sometimes here the relays flipping out.
things I've done
The truck now has 307k and I got her for 750 with 296k the miles are all highway and mostly what I put on. I went over a little bit on the oil change I just did and the oil was cleaner that any motor I have ever done. SOLD on Toyota!!!!!!
So any help? thx Jon Street