2005 suburban smoke on startup

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Rocket Man

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May I ask why? Mine is burning oil excessively, and plan to replace the valve seals this month.
It’s not too bad of a job, just have to figure how you want to go about it. I use the TDC method. You can do 2 pistons (4 valves) at a time, then rotate the crank 90* and do 2 more, etc. A good spring compressor is important. There’s a pretty good write-up on LS1Howto , just scroll down to the valve spring section.
https://www.ls1howto.com/index.php?article=23
 

BlackedOutHoe

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Pretty sure it’s because you said you wouldn’t do just the seals unless you were selling the vehicle, and he is planning on keeping his but replacing the seals.
Ask why what? I need context. I read my quote and it is pretty straight forward.

Yep, I'm curious as to why you would do only the seals if you were selling it rather than keeping. I have no intentions of selling my Tahoe, but was told by a good friend that runs a shop that replacing the valve seals would eliminate my oil burn. Mine does not always smoke on startup, but will at times. I've also noticed it doing on hills or if I am sitting at a stop light for a period of time.
 

OR VietVet

GMT800 2005 Tahoe Z71
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Ok, now I understand the question. I ran shops and was used to customers wanting to put a band aid on rigs and then still wanted a warranty. My statement is something I stand by because if I am keeping a rig, I am going full bore and pull the heads and getting guides, seals and valve job as well as a head resurface. I know it is way more work and $ but I am by myself and have disposable income and would just go for it. I like to spend other people's money all day long. But I also like to recommend options as well.
 

BlackedOutHoe

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Ok, now I understand the question. I ran shops and was used to customers wanting to put a band aid on rigs and then still wanted a warranty. My statement is something I stand by because if I am keeping a rig, I am going full bore and pull the heads and getting guides, seals and valve job as well as a head resurface. I know it is way more work and $ but I am by myself and have disposable income and would just go for it. I like to spend other people's money all day long. But I also like to recommend options as well.
Roger. So doing just valve seals isn’t necessarily bad, just not going to the extent you would if it were yours. Got it. Thanks for your help and insight!
 

BlackedOutHoe

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It’s not too bad of a job, just have to figure how you want to go about it. I use the TDC method. You can do 2 pistons (4 valves) at a time, then rotate the crank 90* and do 2 more, etc. A good spring compressor is important. There’s a pretty good write-up on LS1Howto , just scroll down to the valve spring section.
https://www.ls1howto.com/index.php?article=23

Ok, now I understand the question. I ran shops and was used to customers wanting to put a band aid on rigs and then still wanted a warranty. My statement is something I stand by because if I am keeping a rig, I am going full bore and pull the heads and getting guides, seals and valve job as well as a head resurface. I know it is way more work and $ but I am by myself and have disposable income and would just go for it. I like to spend other people's money all day long. But I also like to recommend options as well.

Question gentlemen: AC Delco or Felpro seal kit?

https://www.amazon.com/dp/B008Y8X6Y...colid=SQGSTSGPHV1Y&psc=1&ref_=lv_ov_lig_dp_it

https://www.amazon.com/dp/B000C2EE1...colid=SQGSTSGPHV1Y&psc=1&ref_=lv_ov_lig_dp_it
 

OR VietVet

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In most cases I choose AC Delco/GM seals but if not available, I can easily use Fel-Pro with no problem.
 

OR VietVet

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If the engine is a 5.3 for your 2003 then the part numbers are correct and do cross the same. Like Rocket Man said, it is best to put all rig info in your signature. For instance, there is a choice of the 4.8 and 5.3 engine for your year of rig. See below:



We recommend that you put all your rig(s) info in your signature so we all don’t have to guess at year, make, model, engine size, trans, rear axle locker…….etc. While you may have posted pertinent info in your first post, you may forget to do it again and the info is needed by us anyway. Makes it way easier on all members that attempt to help, to have that info right up front. It is also recommended that you take a pic of your RPO codes, on the inside cover of the glove box, and post that image in your signature. All this info will greatly help those that will try to help with a problem.


If there is any other info, like upgrades, mods or recent mechanical/maintenance work done, that would be helpful in any post as well. Too many times a question is asked by the poster and after about 10 responses we find out that the poster has done recent work to attempt to fix the problem or work that was done that SEEMS not related to the problem.
 

BlackedOutHoe

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If the engine is a 5.3 for your 2003 then the part numbers are correct and do cross the same. Like Rocket Man said, it is best to put all rig info in your signature. For instance, there is a choice of the 4.8 and 5.3 engine for your year of rig. See below:



We recommend that you put all your rig(s) info in your signature so we all don’t have to guess at year, make, model, engine size, trans, rear axle locker…….etc. While you may have posted pertinent info in your first post, you may forget to do it again and the info is needed by us anyway. Makes it way easier on all members that attempt to help, to have that info right up front. It is also recommended that you take a pic of your RPO codes, on the inside cover of the glove box, and post that image in your signature. All this info will greatly help those that will try to help with a problem.


If there is any other info, like upgrades, mods or recent mechanical/maintenance work done, that would be helpful in any post as well. Too many times a question is asked by the poster and after about 10 responses we find out that the poster has done recent work to attempt to fix the problem or work that was done that SEEMS not related to the problem.

See post 52 :Handshake:

Appreciate the willingness to go the extra mile to help, though!
 

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