Anyones help please. I have a 2005 Chev express cargo work van. 4.3L V6 Auto. It starts fine normally, but when the weather gets hot or the truck gets hot, it won't start from time to time. When you turn the key its like there is no power, period. Won't even turn over. We have run a direct power line from the battery to the starter to bypass everything and it then starts fine. Have replaced the parking brake control sensor. Any other ideas? Many Thx

 

are you junping the starter? u may have a bad starter solenoid

 

i have a 2005 express 3500 6.0 engine and at 317,000 miles, the lifters are noisy below 50 mph. runs well at 50 mph or over. am saving to buy a surplus engine or refurbished gm engine. did my oil change every 3500 miles at chevy dealers across southern california. body is a cut-away (14-foot box) - makes it easy to load and unload standing upright (unlike cargo van body where you are crouching). gvw is 6500 but suspensions set to carry 6000 lbs. although i often load 6500 to 7000 lbs of new car tires for delivery to car dealers. never had a problema going thru the weighing scale chp checkpoints. will look for band-aid solution to this noisy lifter problem.