1998 Chevrolet Gmc Blazer V6 Auto MOT Pass Rate
Pass rate for Blazer V6 Auto models manufactured in 1998, based on 101 real MOT test results.
Data from official DVSA MOT testing records
1998 Chevrolet Gmc Blazer V6 Auto MOT Analysis
The 1998 Chevrolet Gmc Blazer V6 Auto has an MOT pass rate of 62.4% based on 101 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 96,841 miles on the odometer. With a 37.6% failure rate, the 1998 Blazer V6 Auto is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1998 Chevrolet Gmc Blazer V6 Auto is Tyres, responsible for 2.0% of failures. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs range from £50–200 per tyre. Noise, emissions and leaks is the second most common issue at 1.0%.
Top failures specific to 1998 models only. The overall Blazer V6 Auto page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 2.0% | 2 |
| 2 | Noise, Emissions And Leaks | 1.0% | 1 |
Failures per 10,000 Miles
avg. 96,841 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Tyres | 0.20 | 2.0% | 2 |
| Noise, emissions and leaks | 0.10 | 1.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1998 Chevrolet Gmc Blazer V6 Auto has an MOT pass rate of 62.4% based on 101 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 96,841 miles on the odometer. With a 37.6% failure rate, the 1998 Blazer V6 Auto is rated as "Average" for MOT reliability.
If you own or are considering buying a 1998 Chevrolet Gmc Blazer V6 Auto, budget for potential repairs before each MOT. Before your MOT, pay particular attention to tyres: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating. With an average mileage of 96,841 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Tyres — 2.0% of failures
Tyres issues account for 2.0% of MOT failures on 1998 Chevrolet Gmc Blazer V6 Auto models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Noise, emissions and leaks — 1.0% of failures
Noise, emissions and leaks issues account for 1.0% of MOT failures on 1998 Chevrolet Gmc Blazer V6 Auto models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.