1999 Jeep Wrangler Yj Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 1999 Jeep Wrangler Yj, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Heating & air conditioning120.0%
- Engine120.0%
- Fuel system120.0%
- Interior & seats120.0%
- Suspension120.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
THE AIRCONDITIONER SWITCH HAS MELTED 2 TIMES SINCE I HAVE OWNER THIS JEEP. DEALER SAYS NOTHING IS WRONG. NO ADD ON EQUIPMENT OF ANY KIND IS PRESENT OTHER THAN A CELL PHONE CHARGER IN THE CIGAR LIGHTER RECEPTACLE. THERE HAD BEEN NO FIRE YET...BUT THE WIRES ARE GETTING HARD AND BRITTLE. THE FIRST SWITCH JUST SHOWED SOME MELTING OF THE PLASTIC ON THE SWITCH HOUSING. THE SECOND SWITCH HAD THE METAL LUG THAT THE HIGH-SPEED FAN WIRE CONNETS TO COMPLETELY LOOSE FROM THE SWITCH AND HANGING IN THE WIRE CONNECTOR. I HAVE BEEN TO 2 DEALERS AND BOTH SAID NOTHING WAS WRONG...I MUST HAVE JUST GOTTEN A "BAD" SWITCH. BUT THEY STILL CHARGE ME ABOUT 80 DOLLARS FOR A NEW SWITCH PANEL EACH TIME. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
THE 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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
WHEN OPENING GAS CAP, FLAMES CAME OUT OF TANK, UNABLE TO DETERMINE CAUSE. *YC
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
THE AIRCONDITIONER SWITCH HAS MELTED 2 TIMES SINCE I HAVE OWNER THIS JEEP. DEALER SAYS NOTHING IS WRONG. NO ADD ON EQUIPMENT OF ANY KIND IS PRESENT OTHER THAN A CELL PHONE CHARGER IN THE CIGAR LIGHTER RECEPTACLE. THERE HAD BEEN NO FIRE YET...BUT THE WIRES ARE GETTING HARD AND BRITTLE. THE FIRST SWITCH JUST SHOWED SOME MELTING OF THE PLASTIC ON THE SWITCH HOUSING. THE SECOND SWITCH HAD THE METAL LUG THAT THE HIGH-SPEED FAN WIRE CONNETS TO COMPLETELY LOOSE FROM THE SWITCH AND HANGING IN THE WIRE CONNECTOR. I HAVE BEEN TO 2 DEALERS AND BOTH SAID NOTHING WAS WRONG...I MUST HAVE JUST GOTTEN A "BAD" SWITCH. BUT THEY STILL CHARGE ME ABOUT 80 DOLLARS FOR A NEW SWITCH PANEL EACH TIME. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
JEEP FRAME ROTTED ABOVE REAR AXLE
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .