2nd Gen Tacoma Catalytic Converter, 2.7

235,000 miles on my Tacoma. Is it possible that my cat is bad, even though I am not popping a code? Getting a lot of pre-ignition. Tested the heat going in and coming out of the converter with a heat gun. I always thought it was supposed to be hotter exiting. The exhaust in mine is about 100 degrees cooler coming out of the back of the converter.

 

They have a special service campaign to rplace these free of charge on certain VIN's.

Go here: http://www.toyota.com/recall?&srchi...rt_Recalls|Recall_Toyota|Existing|Brand_Owner

Then enter your VIN to see if this applies to your truck. If so you win a new free catalytic converter assembly.

 

Thanks