When my original starter failed at at 195,000 miles I put an Autozone new starter on it. After about 6 weeks the starter kept running when the engine started for several seconds. Replaced the starter relay. Same thing. I am now on my 3rd Autozone starter (lifetime warranty). This does not happen until about 5 to 6 weeks on the new starter. 07 Tahoe 5.3. No mods. Now the 3rd starter is doing the same thing as of last week. Been on about 6 or 7 weeks. Mostly does it when cool or on first start in the morning. HELP!