I have a 2005 Sequoia where the starter will not disengage from cranking after you release the key. I just put a replacement engine in after the previous one broke a timing belt. After the timing belt broke I noted the same problem when I cranked it then, so same synptoms, two different motors. When the engine starts there is a loud noise coming from the engine, and I get some white-ish burnig smelling smoke from the back of the engine. Could the running engine be pulling the running engine along? What could it be? Igniton switch? Some started solenoid?