I've got a 1993 suburban with 289,000 miles original engine. The only things I have doe are: rplace a battery (2x) replace entire rearend (ruined a right rear seal & axle housing) replace alternator replace A/C compressor (twice) the thing runs pretty well and uses no oil. It has developed a slight roughness. Any ideas on what part is the next to go? I've heard timing chain and distributer.
I have 180K on my 89 and replace very little on it. Still has same starter and altenator minus a new rear bearing in alt about 5 years ago. Water pump if you have not yet (mine went out around 140 K). You can check timing chain slop by trying to rotate dampner pully back and forth. If there is about 10 degrees or more sloop, timing chanin is getting loose and at about 15 degrees you are on borrowed time. Tranny maybe too unless you have serviced it regularly with fluid and filter changes. Yes on more thing, the gasket seal between the TBI unit and intake manifold is known to fail with age (mine did about 5 years ago)
GM had train loads of stuck ring problems with 10w40 oil in 80's and not longer approves its use and has not for some time either.The high VI content can cook out and stick rings. You have been lucky.
My dad bought an 83 5.0L new. He used 10w40 as well. Also, everyone in the family used the "havoline supreme" oils of the past. Hopefully, today's Havoline oil is a good as before even though they can't use the "supreme" word anymore. I've always liked that it was honey-colored in the can...not like that brown Pennsylvanian stuff (that of course...isn't from Pennsylvania anyway).
Anyway, he put over 300K miles on that thing and finally gave it to the salvation army when he bought one of the first 97 Fords....too many strikes at the GM shop. Which might explain Pete's trouble with his 98....I was thinking 97/98 were strike years....but don't hammer me if I'm wrong.
Back to the 83, they didn't tow it...he dropped it off for them. The rest of the truck was falling apart...the only thing that had any life left was the engine....it didn't smoke, knock, or leak. To bad is was a 305, not a 350.
As usual always a wise a$$. What ever flips your skirt.
The VI problem with GM engines and 10w40 was real (and likley before your time) and the reason you will not find 10w40 listed as aprroved in any GM owners manual for over the last 15 to 20 years. Some brands of 10w40 were worse than others.
aarcuda69062 is such a inmature child that he is not even worthy of wasting any more time with in this thread. Knock yourself out as you are a legend in your own mind.
289,000... This is nothing I have and use a 94 Burb everyday that has 417,000 + on it. No rust and everything works. I have run Mobil One 5W-30 in it since 44K and it doesn't burn any oil. I have replaced almost everything on the truck with the exception of the engine. 5.7 that has never been opened and still runs like a top. Replaced it with a 04 Avalanche last week and I am in the process of selling it now.
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