Question about 2001 Chevrolet Silverado 2500HD
I purchased the truck used. drove it 1500 miles and the oil level light came on. when I checked the oil it didn't show on the stick. added 2 quarts, and have had to do so every 1500 miles. Truck doesn't appear to smoke and does not leak. have tried synthetic, and now have rotella 10-40. nothing seems to help. Dealer says gm says a quart every 1000 miles is normal...sounds like the dealer is blowing smoke ...is he?
Every manufacturer has a guideline. But a quart every 1,000 miles seems higher then necessary. Try the easy steps first. 1. Check the PCV valve if clogged will caused pressure in crankcase and oil burning. 2. Remove spark plugs and perform visual inspection. IF electrode is covered in gook(technical terms, sorry), then oil is leaking into that cylinder. Most likely cause would be faulty valve stem seals. 3. Worse case scenario, engine oil rings are leaking. If all else is good. Perform compression test of each cylinder recording measurement, then add two small squirt of engine oil into each cylinder as you perform a second round, complete both dry then wet compression test on each cylinder before proceeding. IF any cylinder shows a more significant increase in compression then it would indicate that cylinder's oil rings are faulty. This is a major repair. Keep me posted
Posted on Dec 17, 2008
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Posted on Jan 02, 2017
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