warm up time- noisy lifters

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cmc76

cmc76

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For me, the tick only seems to occur at less than 30 degrees outside. if i start and go, its more pronounced under load. if i let it warm, goes away in less than 2 minutes.
I have not pulled the valve covers to inspect, but based on everything i have read, its not uncommon. With the miles i have ( 174k)
I am not going to worry about it much, other than making sure i am warmed up.
I went ahead and had the remote start put in last week, thank god. It got really cold, really fast and its been a great addition.
The reason i initially asked about warm up time, is prior to the tahoe i had been driving a cummins diesel for about 10 years.
With the diesel , when cold you can have fuel get by the rings at idle. Which is why they use a high idler for longer idle time.
 

shoredune

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ok, so after debating on it, im getting a remote start put in today.
Naturally if you look up information on the topic, google will tell you to only warm up for 30 seconds.
well, with 175,000 miles i have some ticking at start up in the cold, and its been my experience that in a vehicle with some miles, if its going to break it breaks in the cold.

So im interested in other peoples opinion, especially since we all have essentially the same driveline.
It doesnt seem out of line to let my truck run for 5 minutes before heading out when its 20 degrees outside.

thoughts?
Put some rislone in there and a can of restore works wonders!
 

Bowzer

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Put some rislone in there and a can of restore works wonders!
Yeah that stuff is great, it's usually next to the snake oil haha. Hope whatever gets knocked loose doesn't plug the cats.
 

retiredsparky

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Many GM engines have piston slap when cold. The pistons have short skirts which allows the piston to rock as it goes up and down. After the combustion heat expands the piston, the slap goes away. Most mechanics can tell the difference between slap and lifter noise.
 

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