IllustrationTHE EXHAUST MANIFOLD HEADERS HAVE CRACKED IN TWO SEPARATE LOCATIONS. THE FIRST CRACK IS LOCATED AT A BEND IN THE HEADER AND THE SECOND CRACK IS NEAR THE WELD AT THE FLANGE WHERE IT CONNECTS TO THE EXHAUST PIPE. THIS LOCATION HAS CRACKED COMPLETELY AROUND THE PIPE, MOSTLY AT THE WELD BUT UPWARDS 1/2" INTO THE MANIFOLD ITSELF.*AK
1999 Jeep Wrangler Yj
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Wrangler Yj years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 3 of 4 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports1 fire reports0 injury reports
Engine And Engine Cooling complaints
1 reportsOfficial recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.