Silverado 1500 buzzing noise only at one engine RPM
There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance without rand…
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Repairs & ownership
Sierra 1500 coolant level slowly drops with no puddle
Sierra 1500 coolant level slowly drops with no puddle. About 4,800 miles on it.
Footwell gets wet only after heavy rain — 2018
The car stays dry in normal rain but after a long storm one front footwell gets damp. Door seal looks okay. What drain/seam tests would you do before tearing t…
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Manual says the transmission fluid is lifetime under normal use, but the car is approaching 80k miles and I plan to keep it a long time. Curious what owners ar…
Buzzing noise only at one engine RPM?
There is a light buzz from the dash at one narrow RPM range. It disappears above and below that speed. Any good method for locating trim resonance without rand…
Sanity check: wireless CarPlay drops at the same intersection — 2018
Wireless CarPlay is reliable almost everywhere but disconnects at the same intersection on my commute. Does consistent location point strongly to RF interferen…
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Manual says the transmission fluid is lifetime under normal use, but the car is approaching 80k miles and I plan to keep it a long time. Curious what owners ar…
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I have brought the car in twice for the same intermittent warning and both visits ended with could-not-reproduce. I have video and timestamps. What is the best…
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Cruising is smooth, but braking from highway speed makes the steering wheel shake. Pads still have material. Would you start with rotor runout/thickness variat…
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In Los Angeles, i want smaller winter wheels for more sidewall. Overall tire diameter can stay close, but I am worried about caliper and spoke clearance. What…
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The car gets lots of cold starts, idling and short trips with few long highway runs. The factory interval feels long for that use. How would you set an interva…
Coolant is old by time but low mileage (Texas)
Quick one about the Sierra 1500. Car only has 32k miles but the coolant is several years old. Would you change it based on age alone? I'm trying to prioritize…
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I can feel a small click through the seat base in corners. Happening around Las Vegas.
Driver seat clicks during left-right transitions — 2024 R1S
I can feel a small click through the seat base in corners. Mounting bolts appear tight and power functions work. How do you isolate rail play versus the frame…
LS: check-engine light turned itself off — still scan it — 1998
In Las Vegas, the light was on for two days and then disappeared before I could schedule service. Car feels normal. Is there still likely to be useful stored o…