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2013 Chevrolet Silverado 1500 — brake fluid is old but still looks clean

RotorHunterCommunity StarterJun 27, 20262013 Chevrolet Silverado 1500 LTDallas
Fluid looks clear in the reservoir but has been in the car for several years. Would you change based on time/moisture rather than appearance? I am in Dallas. I am trying to get the facts straight before spending money.
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24 replies

FlatSixDad488Community StarterCommunity StarterJun 27, 2026permalink
If it were in my driveway, capture voltage while the 2013 Chevrolet Silverado 1500 is actually failing — after it restarts you've lost the clue. If the cheap test changes it, stop and reassess. I'd want that in writing, not as a promise. Happens in gear, not in park, for what that's worth.
FlatSixDad488Community StarterCommunity StarterJun 27, 2026permalink
I wouldn't throw parts yet. Capture voltage while the 2013 Chevrolet Silverado 1500 is actually failing — after it restarts you've lost the clue. You'll know quickly if you're on the wrong tree. I'd want that in writing, not as a promise. No warning lights, which is why I'm documenting it.
MarketWrenchCommunity StarterCommunity StarterJun 27, 2026permalink
I wouldn't throw parts yet. Move a coil or plug on the 2013 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. If it doesn't change the out-the-door or the repair estimate, it's noise. Your commute and mine probably aren't the same, but the test still applies. This is me being the wet blanket on purpose.
TorqueWeekend186Community StarterCommunity StarterJun 27, 2026permalink
I'd want a measurement, not a hunch. Swap the cheap/easy piece first on the 2013 Chevrolet Silverado 1500 and see if the fault moves. Don't erase codes until someone who can help has seen them. That's the whole play. Video is ugly but it shows the hesitation.
ShopHauler301Community StarterCommunity StarterJun 27, 2026permalink
I'd want a measurement, not a hunch. A pressure test beats staring at a dry driveway if the 2013 Chevrolet Silverado 1500 is losing coolant with no puddle. Save the big job until that test fails. If it doesn't change the out-the-door or the repair estimate, it's noise. Heat soak after errands is the other window.
BoostGal550Community StarterCommunity StarterJun 27, 2026permalink
I'd want a measurement, not a hunch. Swap the cheap/easy piece first on the 2013 Chevrolet Silverado 1500 and see if the fault moves. That's the branch I'd chase this week. If it doesn't change the out-the-door or the repair estimate, it's noise. I already checked the easy fluid levels.
FlatSixDad488Community StarterCommunity StarterJun 27, 2026permalink
This is usually cheaper to test than to guess. Write temp, speed, and in-gear vs coast when the 2013 Chevrolet Silverado 1500 does it — then decide on parts. Don't erase codes until someone who can help has seen them. I'd want that in writing, not as a promise. If this is nothing, great. I want that in data.
UsedCarHunter970Community StarterCommunity StarterJun 27, 2026permalink
I wouldn't throw parts yet. Two 2013 Chevrolet Silverado 1500s can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Run the total, not the monthly, before you commit. I've seen both outcomes, which is why I'd test instead of assume. I'll poke at it this weekend.
ApexTunerCommunity StarterCommunity StarterJun 28, 2026permalink
Fair point. Counterpoint: Loaded-suspension checks on the 2013 Chevrolet Silverado 1500 catch play that a wheels-hanging inspection misses. Don't erase codes until someone who can help has seen them. Happy to compare notes if your setup is different. A day of patience here is cheaper than a wrong part. Might be overthinking it, but I'd rather overthink than overspend.
MarketMiles399Community StarterCommunity StarterJun 28, 2026permalink
Fair point. Counterpoint: Move a coil or plug on the 2013 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. Happy to compare notes if your setup is different. If that fails I'll eat the diagnostic fee.
ColdStartFanCommunity StarterCommunity StarterJun 27, 2026permalink
Log the conditions before you spend. A pressure test beats staring at a dry driveway if the 2013 Chevrolet Silverado 1500 is losing coolant with no puddle. Save the big job until that test fails. On “brake fluid is old but still looks,” that was the fork that mattered for me. That's the whole play. Not interested in a five-hour wait for a shrug.
BoostSeller448Community StarterCommunity StarterJun 27, 2026permalink
Log the conditions before you spend. Get a real battery/charging test on the 2013 Chevrolet Silverado 1500, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. On “brake fluid is old but still looks,” that was the fork that mattered for me. This is from a 2013 Chevrolet Silverado 1500 in Dallas. If they can't show the line item, I assume it's hiding. If your situation is the opposite, ignore me. Video is ugly but it shows the hesitation.
RotorHunterCommunity StarterCommunity StarterJun 28, 2026permalink
Update: the cheap test changed the symptom, so I'm not throwing parts yet. That's my plan before I call anyone.
TorqueWeekend186Community StarterCommunity StarterJun 28, 2026permalink
Start with the test that can prove you wrong. Swap the cheap/easy piece first on the 2013 Chevrolet Silverado 1500 and see if the fault moves. Save the big job until that test fails. Stop there until you know. Checking again after work.
BoostGal550Community StarterCommunity StarterJun 28, 2026permalink
This is usually cheaper to test than to guess. Two 2013 Chevrolet Silverado 1500s can feel identical and have different causes, so measure before you copy someone else's repair. That's the branch I'd chase this week. This is from a 2013 Chevrolet Silverado 1500 in Dallas. I'd want a dollar figure or a measured spec, not 'should be fine.' Happens in gear, not in park, for what that's worth.
NewCarPilot152Community StarterCommunity StarterJun 28, 2026permalink
If it were in my driveway, capture voltage while the 2013 Chevrolet Silverado 1500 is actually failing — after it restarts you've lost the clue. Don't erase codes until someone who can help has seen them. That's the sequence I'd use. Doing the boring step first on purpose.
ShopHauler301Community StarterCommunity StarterJun 28, 2026permalink
If it were in my driveway, move a coil or plug on the 2013 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. If it doesn't change the out-the-door or the repair estimate, it's noise. I'd rather look cautious in this thread than stuck later.
HybridMechanicish897Community StarterCommunity StarterJun 28, 2026permalink
Log the conditions before you spend. Move a coil or plug on the 2013 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. You'll know quickly if you're on the wrong tree. On “brake fluid is old but still looks,” that was the fork that mattered for me. Just my two cents from doing this recently. This is the filter I use when the thread starts repeating itself. If it repeats twice more I'll book time.
RotorHunterCommunity StarterCommunity StarterJun 28, 2026permalink
It did brake fluid is old but still looks twice this week, both times after sitting. No change in mileage feel. If it repeats twice more I'll book time.
BoostGal550Community StarterCommunity StarterJun 28, 2026permalink
Start with the test that can prove you wrong. Move a coil or plug on the 2013 Chevrolet Silverado 1500 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. If it doesn't change the out-the-door or the repair estimate, it's noise. I keep a notes app thread for this now.
UsedCarHunter970Community StarterCommunity StarterJun 28, 2026permalink
Intermittent stuff lies if you only catch it once. A pressure test beats staring at a dry driveway if the 2013 Chevrolet Silverado 1500 is losing coolant with no puddle. Save the big job until that test fails. On “brake fluid is old but still looks,” that was the fork that mattered for me. This is from a 2013 Chevrolet Silverado 1500 in Dallas. I'd want a dollar figure or a measured spec, not 'should be fine.' This is the version I'd tell a friend.
CamberCamper245Community StarterCommunity StarterJun 28, 2026permalink
Intermittent stuff lies if you only catch it once. Get a real battery/charging test on the 2013 Chevrolet Silverado 1500, not just resting voltage, before blaming a module. If the cheap test changes it, stop and reassess. On “brake fluid is old but still looks,” that was the fork that mattered for me. Run the total, not the monthly, before you commit. Doing the boring step first on purpose.
HybridMechanicish897Community StarterCommunity StarterJun 29, 2026permalink
I'd push back a little: Get a real battery/charging test on the 2013 Chevrolet Silverado 1500, not just resting voltage, before blaming a module. You'll know quickly if you're on the wrong tree. Take it or leave it — that's what I'd do. I'm keeping receipts and dates in one folder.
UsedCarHunter970Community StarterCommunity StarterJun 29, 2026permalink
That's a good start, but I wouldn't stop there. Loaded-suspension checks on the 2013 Chevrolet Silverado 1500 catch play that a wheels-hanging inspection misses. That's the branch I'd chase this week. Run the total, not the monthly, before you commit. This is me being the wet blanket on purpose.
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