Join Date: Nov 2010
Location: Yuba City, ca
Thanked 1,420 Times in 1,351 Posts
iTrader Score: 0 reviews
OK here are some thnigs you can do to test dome stuff.
First watch the for the wait to start light to come on EVERY time as soon as you turn the key to ON.
If the grid heaters are working the voltage will drop to the mark on far left of voltmeter on dash. The ECM cold be turning them on but if the voltage does not drop the relay is not working. But if the issue is happening when warm it is not bad grid heaters. An air leak in return line usually causes hard or no start after sitting for several hours, not a few minutes.
Batteries going bad will act like what you have. It only cranks a slight bit(often unnoticeable) slower, not fast enough for compression firing of a diesel. So, have your batteries load tested disconnected and separately. Free many places.
The stating on second try is often a symptom of a bad ECM, but it also would not have the WTS light come on immediately the first try.
A delayed WTS light is always indicative of a bad ECM.
99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels. 3.55 diffs. Ruenell front bumper and warn winch, Rancho adj shocks. 663k miles.