Chevrolet Gmc Unknown (1998)
1998 Chevrolet Gmc Unknown
CarHunch analysed 144 real MOT records for the 1998 Chevrolet Gmc Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 1998 Chevrolet GMC is in dire straits: a 1.5% first-time pass rate versus the UK average of 80% means virtually every example will fail its MOT, and the petrol versions achieve 0% passes outright. With 0.7% of vehicles having recorded dangerous defects, safety issues are a genuine concern for any prospective buyer.
At an average mileage of just 54,296 miles for a 26-year-old vehicle, these are either low-mileage survivors or heavily reworked imports, yet they're still failing MOTs at alarming rates—suggesting systemic mechanical problems rather than simple wear. Unless you're buying this specifically for restoration or parts, walk away: the combination of near-universal MOT failure and sparse advisories (0.1 per vehicle) hints that problems are catastrophic rather than minor, not worth the recovery costs.
What to check before buying a 1998 Chevrolet Gmc Unknown
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Chevrolet Gmc Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (91%) | 131 | 0% | 0 |
| Diesel (8%) | 12 | 13.3% | 0.33 |
| Diesel (1%) | 1 | 50% | 1 |
MOT History Averages
Most Common MOT Issues — 1998 Chevrolet Gmc Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
350%
Sill covers fitted
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250%
Oil leak, but not excessive
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200%
Nearside Front Anti-roll bar linkage pin or bush worn but not resulting in excessive movement
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200%
Offside Front Anti-roll bar linkage pin or bush worn but not resulting in excessive movement
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150%
Offside Front Anti-roll bar pin or bush worn but not resulting in excessive movement
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100%
slight oil contamination on rear diff
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100%
Underside of vehicle undersealed
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100%
Rear Registration plate deteriorated but not likely to be misread
Data covers a 3-year window centred on 1998. Counts include advisories and failures.
Found a specific Chevrolet Gmc Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.