How long to hold manual glow plug button on cold mornings? 4d55t

[Uncle Spence]

My system has been bypassed so I only go for 5 seconds max. If it just turns slowly then I let it build some speed and then push for an additional 3 seconds. Usually then it would fire right up. However, I live in Texas now and it doesn't get cold enough to justify. Plus I just rebuilt my engine and the compression is so good that it fires right up.
I had a timer power strip that I'd plug mine into. I'd only have the block heater run for about 2 hours before I went out to start it. I did that, to save power on my bill, and since the block is small it doesn't take very long to heat.
Our old powerstroke required at least 5 hours of block heater in the cold months or else you'd just wear out your batter.

[phillie]

My system has been bypassed so I only go for 5 seconds max. If it just turns slowly then I let it build some speed and then push for an additional 3 seconds. Usually then it would fire right up. However, I live in Texas now and it doesn't get cold enough to justify. Plus I just rebuilt my engine and the compression is so good that it fires right up.
I had a timer power strip that I'd plug mine into. I'd only have the block heater run for about 2 hours before I went out to start it. I did that, to save power on my bill, and since the block is small it doesn't take very long to heat.
Our old powerstroke required at least 5 hours of block heater in the cold months or else you'd just wear out your batter.

yup, below 50 arpund 5 seconds plugged in.
even on 70s i have to use for a few seconds. my engine has 170k on it, so it could be condition related

Thank you for your replies. I'll try plugging in my block heater and see if it helps with a quicker start in the morning.
Currently I hold it for 10 seconds 2-3 times and it still has a hard start in 60 degree temp. It'll be trial and error.

[skullzaflare]

Thank you for your replies. I'll try plugging in my block heater and see if it helps with a quicker start in the morning.
Currently I hold it for 10 seconds 2-3 times and it still has a hard start in 60 degree temp. It'll be trial and error.

Sounds like you might have some other issues, or the power isnt getting to them