IronCladMax
Newbie
I've got a 1998 gmc K1500 5.7l auto with 189k and I'm absolutely baffled. About once a month at random my truck will refuse to run. I'll let it prime for 1-2 sec and usually bumping the key is enough for to to come to life, however with this problem I'll bump the key and it will come to life and then die like I just turned the key off. Holding the key after it turns off just turns the motor over. Unplugging to coil and letting it turn over a few times and then repluging it in fixes the problem and it runs like a top untill it happens again.