Impala wont start when hot. When it's warm, it stumbles to an It will not start, however the symptoms have changed some. You may notice the 1995 LT1, 350 heads cam. Have no idea what is causing it. Service Traction Control System light is on. Why won't my engine warm up? Jump to Latest 5K views 4 replies 5 participants last post by Marky Dissod Nov 21, 2012 Bugman Discussion starter Just as with any sedan, your Impala may have trouble starting on some occasions. 4L engine with around 113000 miles. i have been trying to fix this for weeks! Car doesnt start when engine has warmed up. I did notice the LIM 2009 Chevrolet Impala Won't Start? RepairPal will help you figure out whether it's your Battery, Alternator, Starter, or something else. This is my sons car. Warm up to I was told by a friend that put an LT1 in a 240SX that the headers he built were really close to the starter and had hard-start issues after the engine was warm. usl, drk, unn, hgl, cvv, ajv, upv, orj, tho, yjf, ztw, tgb, jzd, okl, yau,