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Hi I have 2002 Silverado it has the 4.3 engine in it is getting up there in miles has around 170000 on it here lately it has been what seems to me is “dry start” after sitting over night
only pecks for a few seconds and then goes away but it does it very loud
my question is what can I do to help this problem? has new oil change with Lucas
oil additive has not helped any suggestions will be appreciated
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PECKING?
As in tap tap tap noise? That goes away, initially fast enough, slowly taking more and more time? After sitting overnight? Getting worse the colder it is outside?
Google “GM piston slap”. Have fun.
[quote=”ukrkoz” post=123404]PECKING?
As in tap tap tap noise? That goes away, initially fast enough, slowly taking more and more time? After sitting overnight? Getting worse the colder it is outside?
Google “GM piston slap”. Have fun.[/quote] I agree with this post right here. As a GM tech, I see it all the time. Piston Slap is an all too common problem that has no adverse effects as long as it’s not severe and goes away when warm.
yea more like a slap noise in top end and yea goes away soon as it gets oil to top
never had the problem until cold weather came[quote=”bigdan395″ post=123451]yea more like a slap noise in top end and yea goes away soon as it gets oil to top
never had the problem until cold weather came[/quote] That is normal my friend…no worries 🙂thanks ill give it a try I am using a bosh filter right now
any suggestions on a good filter with good anti drain back?
I read online a k@n is a great filter[quote=”bigdan395″ post=123455]thanks ill give it a try I am using a bosh filter right now
any suggestions on a good filter with good anti drain back?
I read online a k@n is a great filter[/quote] I use NAPA Golds. K&Ns are alright if you like paying more for a filter. Motorcrafts are good too. Just don’t use a FRAM, they ain’t what they used to be.
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