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I would check the fuel pump in the tank. Could also be the gears in the rear end.
- We've had the same whine since we bought our 2000 pickup in 2003 - gets louder in warm weather, just like you noticed. I've been paying attention the past few years and noticed that it's very common in other Chevy pickups. Not sure what it is, but our theory has been the fuel pump bushings were going bad. If so, it took a long time for them to go out - the fuel pump finally died last night after almost 6 years of driving with that noise.
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โˆ™ 2008-12-13 01:02:33
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Q: 1997 Chevy Blazer what is loud whine coming from underneath back of vehicle gets worse in warm weather?
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