Other powertrain problem on the 2008 Chevrolet Silverado 2500
1 crash 1 injury 2 of the 11 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When other powertrain problem gets reported
Owners of the 2008 Chevrolet Silverado 2500 report other powertrain problem at a median of 45,000 miles. A quarter of the reports come in before 30,000 miles and a quarter after 90,000 miles, from 10 reports that carried an odometer reading.
A part like this is normally expected to survive 92,000 miles. It is the 4th most-reported problem on this model year.
The mileage distribution
The reported range runs from 500 miles at the tenth percentile to 215,000 miles at the ninetieth, a spread of 215,350 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
30% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 450 miles | 30,903 miles | 47,250 miles | 88,875 miles | 215,800 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 1 a crash and 1 an injury are mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $400–$4,500 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 19 model years of this car. It shows up earliest on the 2011, at a median of 1,100 miles, and latest on the 2000 at 190,000 miles.
By volume the 2006 carries the most reports, with 22; the 2008 has 11. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Automatic transmission lines 2008 chevy silverado with allison transmission. Factory transmission lines leak and must be replaced. When the weather turns cold, the lines/crimps holding the rubber hose to the pipes fail and automatic transmission fluid is lost, sometimes in catastrophic manner, causing the vehicle to loose propulsion. Reports of failure are extremely common, and it is not unusual, that the lines may have been replaced 3 times within the 1st 50,000 miles. Gm has issued 'new, updated' parts, but they are no better than the original parts. The new part numbers are 20759971, 20759972, 20759973. Wile repair is covered on the 36k bumper to bumper warranty, there is no coverage on the 100k warranty. Gm should replace the lines free of charge for the 1st 100k miles with a hose that will not fail. Consumers can take the original gm line to a hydraulic shop, have the rubber portion of the lines replaced with standard hydraulic hose suitable for atf fluid and there are no further failures. If consumers can fix the lines, perhaps gm can find a solution. *tr
2008 chevy silverado 2500, gas engine, 34,600 miles. Transmission is having issues that dealer cannot seem to fix. New pump put into trannie, still having problems. Usually happens in tow haul mode, hauling approx 5,000 lbs. Transmission will not shift up, holds and revs to 3500 or 4000 rmp's. I take foot off gas and it bumps into gear. Most often happens at 35mph and 55 MPH. When slowing down transmission slams into lower gear and revs very high. At 55 MPH on I-435 in kcmo during rush hour, trucks tires locked up and squealed when trannie down shifted. Has a major issue between 30-40 MPH. Again, slams between gears throwing passengers forward (I don't want to think about how it is affecting the horses!) we are first and only owner of truck. Truck treated very well, no off-roading or abuse. Sad that we are having this issue..... It doesn't even have 35,000 miles on it!!!!! *tr
Tl* the contact owns a 2008 chevrolet silverado 2500. The contact stated that the transmission was leaking fluid and the vehicle would stall without warning. The dealer and the manufacturer were contacted, but denied any assistance with repairs to the vehicle. The vehicle was not repaired. The failure mileage was 38,000 and the current mileage was 41,000.
Also reported on the 2008 Chevrolet Silverado 2500
Airbag inflator rupture
Other body or interior problem
Other electrical problem
Other steering problem
Other fuel system problem
Control module (ECM/PCM/BCM) failure
How far this goes
Complaints are voluntary, so 11 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other powertrain problem happen on the 2008 Chevrolet Silverado 2500?
Across 10 owner reports that included an odometer reading, half were filed by 45,000 miles. A quarter were filed before 30,000 miles and a quarter after 90,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other powertrain problem on the 2008 Chevrolet Silverado 2500?
11 reports have been filed with NHTSA, about 0.4 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed