dscarpola@comcast.net 
2008 Toyota Tundra Double Cab Tundra Grade 4dr Double Cab 4WD LB (5.7L 8cyl 6A)
loud noise at start up
 i just bought 2008 tundra 5.7 with 164000 when i start makes loud rattling noise for about 3 seconds then stops. After started if i listen close i can here what i think are the lifters making slight noise. My mechanic did not listen to it but when i told him he said i will need to replace motor soon that because who ever owned it before me didn't change oil enough clogged up timing chain, said it could lock up engine in a week or 2 years, and told me to purchase a 36 mo. engine replacement warrantee with him since i have 30 days to get one. all the forums I've been too says this is common to 5.7  and toyota knows it. I guess i am ok with noise just do not want motor blow mechanic says it could cost up 13k to replace