2003, RX300, 32K

[car_junkie_moron]

Just went in for a 30K service. After this car vibrates constantly and surges every few minutes when ideling. Took back to dealer and they didn't even found it. Any idea what could be wrong?

 

[IslaVistaMan]

A vacuum line, maybe?

The 30K service in these cars is basically fumbling around with fluids and looking things over. I'd be willing to bet that the mechanic got careless and knocked something loose.

Look your paperwork over, and see what they did. Then, backtrack over your engine (hoses, sparkplugs, electrical connectors, etc) and you'll probably find it.

Faling that, take the car in again and have them do a code read.