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#BS-2004-ISUASC-1FE8

2004 Isuzu Ascender

Based on reports from 88 owners and 1 recall for this exact model.

Complaints
88
Crashes
0
Fires
4
Recalls
1
TSBs
175
🟡

Preliminary Verdict

Think Twice

Based on 88 complaints, 0 crashes, 4 fires, and 1 recalls. This is the worst model year for this vehicle.

See full verdict with buy/skip conditions

Top reported problems

1

cracked fuel tank

2 complaints • Severity 10/10

$X,XXX
2

fuel tank inlet check valve crack

2 complaints • Severity 10/10

$X,XXX
3

rear window exploded

1 complaints • Severity 10/10

$X,XXX

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

23 owners reported electrical issues — failures commonly reported around 80K miles.

!Inspect the Fuel SystemMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

12
0–30K
10
30–60K
17
60–90K
8
90–120K
15
120–150K
7
150K+

Peak failure range: 60–90K miles (17 reports) • Median: 80K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Electrical (23 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Electrical23 (26%)
Fuel System16 (18%)
Electrical System: Instrument Cluster/panel11 (13%)
Lights5 (6%)
Engine5 (6%)
Seat Belts:front2 (2%)
Drivetrain2 (2%)
Brakes2 (2%)

2004 Isuzu Ascender: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 26% of all reports filed for the 2004 Isuzu Ascender, with 23 owners filing complaints with NHTSA. The median mileage at time of complaint is 80,000 miles, suggesting issues tend to surface around the 80K-mile mark.

Fuel System Issues

Fuel System complaints account for 18% of all reports filed for the 2004 Isuzu Ascender, with 16 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.

Electrical System: Instrument Cluster/panel Issues

Electrical System: Instrument Cluster/panel complaints account for 13% of all reports filed for the 2004 Isuzu Ascender, with 11 owners filing complaints with NHTSA. Owners should pay attention to electrical system: instrument cluster/panel-related symptoms during test drives and pre-purchase inspections.

Lights Issues

Lights complaints account for 6% of all reports filed for the 2004 Isuzu Ascender, with 5 owners filing complaints with NHTSA. Owners should pay attention to lights-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

5
04
4
05
8
06
4
07
8
08
4
09
5
10
5
11
6
12
10
13
4
14
16
15
7
16
1
17
1
18

Complaints filed with NHTSA by year for the 2004 Isuzu Ascender. Recent trend: stable.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (1 recall)

05V198000Aug 2005

EXTERIOR LIGHTING:TURN SIGNAL

ON CERTAIN TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FLASH IN A MANNER SIMILAR TO HAZARD WARNING, RATHER THAN FLASHING ON THE DESIRED SIDE ONLY.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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This is the worst model year for the Isuzu Ascender according to owner complaint data. The biggest problem area is fuel system.

2004 Isuzu Ascender vs. Class Average (Sport Utility Vehicle - 2WD)

This vehicle

88

Class avg

375

Below the class average — fewer complaints than typical sport utility vehicle - 2wd vehicles. A good sign.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 88 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 1 recall found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Isuzu Ascender Model Years

2008200720062005200420032002
View all Isuzu Ascender years →

2004 Isuzu Ascender: Frequently Asked Questions

What is the most common problem with the 2004 Isuzu Ascender?
The most commonly reported issue with the 2004 Isuzu Ascender is related to the electrical, with 23 complaints filed with NHTSA.
Is the 2004 Isuzu Ascender reliable?
The 2004 Isuzu Ascender has 88 complaints, 0 crash reports, and 4 fire reports filed with NHTSA. This is below the class average — a positive sign for reliability.
How much does it cost to fix 2004 Isuzu Ascender problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2004 Isuzu Ascender have any recalls?
Yes, the 2004 Isuzu Ascender has 1 recall on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Isuzu Ascender problems start?
Based on 69 complaints with mileage data, the median mileage at time of complaint is 80,000 miles. The highest concentration of reported issues occurs in the 60–90K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 88 owner reports. Know before you buy.

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