2000 GMC Yukon Denali 5.7L
I swapped Cylinder Heads for a pair of used Cylinder Heads due to the first pair being cross-threaded. After properly installing Heads and torquing them down, we then began to align crank up with TDC Mark and then aligned rotor on distributor to the distributor cap mark. After that, we tried to start it, but it would only just turn over but not start at all. The belt would turn the pulleys and all, but it just seems like it isn't making that starting sound. The fuel pump kicks on and its getting fuel. So we then removed spark plug and decided to put my finger on the hole while the Mechanic used a wrench to turn the crank until I was able to feel air, but no air would blow on my finger at all. So we then removed valve cover and aligned the valves at TDC until both were closed, then put everything back together and still no start. Mechanic then had checked for spark at the #1 plug by removing plug while I tried to start it, and it was getting spark, PLEASE HELP
I swapped Cylinder Heads for a pair of used Cylinder Heads due to the first pair being cross-threaded. After properly installing Heads and torquing them down, we then began to align crank up with TDC Mark and then aligned rotor on distributor to the distributor cap mark. After that, we tried to start it, but it would only just turn over but not start at all. The belt would turn the pulleys and all, but it just seems like it isn't making that starting sound. The fuel pump kicks on and its getting fuel. So we then removed spark plug and decided to put my finger on the hole while the Mechanic used a wrench to turn the crank until I was able to feel air, but no air would blow on my finger at all. So we then removed valve cover and aligned the valves at TDC until both were closed, then put everything back together and still no start. Mechanic then had checked for spark at the #1 plug by removing plug while I tried to start it, and it was getting spark, PLEASE HELP
Jul 8, 2015 at 2:06 AM

