Radiator or coolant leak on the 2000 Chevrolet Blazer
Only 3 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When radiator or coolant leak gets reported
There are 3 reports of radiator or coolant leak on the 2000 Chevrolet Blazer, 3 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 98,000 miles. It is the 47th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 70,450 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
Putting it right typically runs $350–$1,900 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 7 model years of this car. It shows up earliest on the 1998, at a median of 50,000 miles, and latest on the 1997 at 115,000 miles.
By volume the 1996 carries the most reports, with 69; the 2000 has 3. 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.
Smoke and radiator fumes pouring from the defrost and air conditioner vents.so much condensation on windshield makes visibility difficult. Breathing radiator fumes and fluid posing serious health risk to my children. Son had been spitting up blood and complaining of having difficulty with breathing before we could determine it was from the vehicle also causes throat irritation. There are no indicator lights on and the vehicle was just purchased on 1/3/2005 with 100603 miles.
Problem with the dex-cool system in my 2000 chev blazer---heater went out july 2004, was under extended warranty and heater core replaced, radiator was flushed at the same time. One year later vehicle over-heating again, no longer under ext warranty...paid $212 for the flush today and filed complaint w/ gm due to the obvious problem which they deny with dex-cool ( 8 states have class-action suits). Was told by gm rep that the coolant system is a maintainence item and they could not assist or accept responsibility in the reapair cost. Spoke with the gm dealership who argued my case, asked what maintainence required on my part, since the dex-cool maint schedule is 155k miles, maint free---my vehicle has 70k miles and second flush in 12 mo period. Was told by dealership that nothing I could really do to maintain, just keep check on coolant level every oil change, and system could fail again at any time--no guaranteee and the dealership also argued with gm rep---that there is a problem with dex-cool antifreeze.......I paid the cost, but after purchasing gm products for the past 30 years, if I am faced with additional cost of an…
I was returning from beaufort, sc with my niece's 1 yr and 2 yr old children. My niece is in the military and I was bringing the kids back to stay with my sister, their grandmother, for a month. Outside of atlanta on i75 at 1:00 am I heard a huge bang and the front right of my car flew into the air. I had another niece, who was 3 months pregnant, with me who was riding in the front seat. When the car flew up she flew up and hit the roof of the car. Luckily she had her seat belt on or she might have broken her neck. My niece saw that I was trying to get control of the car and looked out the window to see if any vehicles were near so we could get to the side of the road. No vehicles were around so we made it to the side of the road. My niece walked back down the highway to see if she could find what we had ran over. When an officer came to help change the tire to the spare he showed me it was not a flat tire but that my rim had exploded. The officer changed the tire, followed us to make sure the car was drivable then left us to drive back to champaign, il. The exploding rim caused the radiator rack, right headlight assembly, rim…
Also reported on the 2000 Chevrolet Blazer
Other body or interior problem
Fuel gauge or level sensor failure
Control arm, ball joint or bushing failure
ABS module or sensor failure
Tail light, brake light or signal failure
Wheel bearing or hub failure
How far this goes
This page is kept out of search results because 3 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 3 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 radiator or coolant leak happen on the 2000 Chevrolet Blazer?
Across 3 owner reports that included an odometer reading, half were filed by 70,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is radiator or coolant leak on the 2000 Chevrolet Blazer?
3 reports have been filed with NHTSA, about 0.1 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