GMC Troubleshooting Questions? Ask a Mechanic for Answers
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how low was the oil??? does it still run???
2 quarts is not a lot at all to do engine damage. that does not make sense.
yes, there have been issues with the timing chain, guides and tensioners. there is no re call on these at all and they only fall under the 3 yr 36k warranty unless you purchased extended warranty.
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