Question about 2000 GMC Sonoma Extended Cab

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2000 GMC Sonoma 4.3l V6 timing chain replacement

A potential buyer of My 2000 Sonoma had it inspected at a local shop and was told there was play in the timing caused by either a worn dist. gear or timing chain,requiring the replacement of one or the other. they've since pulled the dist. and say it's fine so it must be the chain that needs replacement @ $1300.+. a cost neither of Us can absorb.
The shop says their manual states the engine must be dropped to remove oil pan before replace the timing chain. I know on some earlier S10 models this was also stated, but if the pan was simply loosened and allowed to drop a couple inches it would provide adequate room to carefully replace the seal/gasket. Would this also be true for the 2000 model ?

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Sounds to me someone wants to make a couple of bucks. Does the truck still run? The timming chain is going to have play in it, even with only a few miles on it THATS JUST THE NATURE OF THE BEAST, the chanses of the timming chain going out is remote, I've owned a few 4.3's with well over 100.000 mi. and never had to chg. a timming chain, not to say it can't happend just saying its very remote.

Posted on May 15, 2009

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If you remove the timing cover the front seal from the oil pan is at the bottom of the timing cover you can if you are extremely careful reinstall the timing cover while loosening the bolts on the oil pan make sure that you use plenty of silocone sealer on the corners of the oil pan front main portion of the seal or it will leak most covers recommend that the front cover is not reused also. Keep in mind that if you replace it with an aftermarket cover and it is misaligned the reluctor can strike the crankshaft position sensor causing ignition problems. also if you do end up replacing the cover without losening the bolts it can be done but you will need to grind away the ends of the lip that holds the front portion of the oil pan gasket until you get a good fit. Then dont forget to goop it up with sealer so the gasket wont leak.

Posted on Apr 01, 2012

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If youre planning on doing this yourself, I have not replaced the timing chain but i had to take off the timing chain cover on an old chevy truck, the oil pan isn't actually in the way but when you take the timing chain cover off Debris can get into the oil pan, so you could just take the cover off and stuff a rag into the oil pan. After draining the oil of course.

Posted on May 15, 2009

  • fsboauto Sep 02, 2011

    Find a different buyer , his mechanic is trying to take advantage of both of you its a bald faced lie your trucks fine

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