Common 350 TBI Timing Off Symptoms and Fixes

If you're noticing your old Chevy truck just isn't pulling like it used to, you're likely staring down some 350 tbi timing off symptoms that need your attention before things get worse. The 5.7L TBI (Throttle Body Injection) engine is a legendary workhorse, found in millions of Silverados, Suburbans, and vans from the late 80s to the mid-90s. While they're famous for being "bulletproof," they're also extremely sensitive to ignition timing. If that distributor is even a few degrees off, the whole truck starts acting like it's having a mid-life crisis. ...

May 17, 2026 · 7 min · Choi Ayse