Jmadera83

Hi all, I just got my car back from the dealership. The car was misfiring and the check engine light codes were all sensor coils were bad. Lexus told me that it was coil6 bad and they fixed it. I should have had no problems, I got a whole 2 miles and I misfired and engine light back on. I drove for a while and light went off and then misfired again. Before I bring it back in I was looking for some insight. I can't understand how it wasn't fixed right the first time but I don't want to go back and get a few thousand bill either. Could fixing one coil cause another to go bad. Any help or if someone went through this would be great. Thanks.

neelnaik

Welcome to Club Lexus Jmadera83!

Coil pack failure is not a common issue with these vehicles. Nonetheless, replacing one coil pack will not have any effect on any of the other ones. It is possible that the coil pack that they replaced it with was defective, as it sounds like a failing coil pack. It is very much possible that one of the other coil packs was on the way out when coil pack number 6 failed.

What year is your RX and how many miles?

Have an auto parts store pull the code on the Check Engine Light. Post the code here. The code should tell you which cylinder is misfiring. That will tell us whether it's a defective part or another coil pack going bad.