blazer99

Our 2000 RX300 has had a sudden loss of power. No CELs and engine runs and idles smooth. Car ran great and had full power last week, this week acceleration is slow. I noticed the exhaust tone is a little deeper in the low RPMs. I got underneath while the wife gave it a few revs but didn't notice anything out of place ( I could hear a deeper sound in some of the RPM band). I may put it on ramps and feel around for an exhaust leak, would a small leak around the flex pipe effect power this much? I may also get a laser thermometer and check the condition of the catalytic converter (main converter was replaced about 1 year ago). Any ideas on what else I should check or could be causing this issue? The RX has 182,000 miles.

ukrkoz

Did this happen after refueling? How is air filter?

blazer99

Thanks for responding, I thought I already posted a message but it didn't go through. I fixed it 5 minutes after posting my initial message. Someone (I am guessing my father in law) must have looked at the air cleaner and did not seal the air box correctly. I put everything back the way it should be and the RX is running great again.

trhs75

Don't you wish all fixes could be so easy, inexpensive, and successful? I'm glad it's fixed!