Three problems related to engine and engine cooling have been reported for the 2006 Toyota Scion Tc. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Scion Tc based on all problems reported for the 2006 Scion Tc.
Tl-the contact owns a 2006 Scion Tc. The contact stated that while parked, the vehicle accelerated without notice. The vehicle was started and moved forward with the brakes being depressed. The contact also stated that the throttle gets stuck. The vehicle was towed to a dealer who could not diagnose the vehicle. The vehicle was not repaired and the failure recurred. The manufacturer was not notified of the failure. The failure mileage was 79,300. Ed.
The engine cover is cracked, this cover has never been removed for any type of repair. Wondering if the heat of the engine caused it to crack.
Took my car to the shop for regular maintence and found out that my car was leaking coolent out of three head bolts on back of engine block. They were stripped out because of Toyota improper design of the block. 4 1/2" hole with 4" bolt with only the bottom 1 1/2" threaded which is only an inch to inch thread. Pour design for an aluminum block for that tensile strength. Its an 06 Scion Tc they wanted 6000 to replace block. Even called corporate but they wouldnt do anything about it since its outside of powertrain warranty when they know its a known issue. They even issued a TSB out in 3/2/2011. Something needs to be done I have seen many cases on this issue and Toyota is not willing to do anything about their problem and their pour designs. Service bulletin: s-sb-0004-11.