AI Damage1991 Toyota 4X4: common problems
Owners of the 1991 Toyota 4X4 filed 8 complaints with NHTSA, most often about engine and cooling and service brakes. Details by component below, with sources.
Key figures
- Owner complaints
- 8
What fails most often
- 1 Engine and cooling 38% of all complaints
- 2 Service brakes 25% of all complaints
- 3 Electrical system 13% of all complaints
- 4 Engine 13% of all complaints
- 5 Equipment 13% of all complaints
- 6 Fuel/propulsion system 13% of all complaints
- 7 Fuel system 13% of all complaints
- 8 Seats 13% of all complaints
- Engine and cooling: 3 complaints (38% of all).
- Service brakes: 2 complaints (25% of all).
- Electrical system: 1 complaints (13% of all).
- Engine: 1 complaints (13% of all).
- Equipment: 1 complaints (13% of all).
Symptoms owners describe
How many of the 8 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 3 | 0 | 0 |
| Service brakes | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
This truck,#1 overheats and vents coolant fumes inside the cab,,,,#2 seat belts come undone, the spring are defective,, #3 the head lights cut off on the hyway randomly or flicker when on,, ie at night. #4 the brakes seized/locked up once before , they brake cylinder got stuck when compresses.
Tl* the contact owns a 1991 toyota 4x4. The contact stated that the seat of the vehicle bent in half after the contact's vehicle was rear ended in a crash. There were injuries sustained, but medical attention was not required. A police report was filed. The manufacturer was made aware of the issue.
Heater blower switch over heating on high speed and an eventual failure to work. I have replaced the switch 3 times in four years. Each time the old switch was removed it was starting a melt down which could lead to an eventual vehicle fire and or serious accident.
While turning onto the street the center link contecting the tires (the rod steering link, toyota part #[phone]) snapped in half, leaving the truck completely without steering. I was able to stop the car before it crashed.
The truck overheated again a couple of years later and was taken to modern toyota. They replaced the thermostat and installed new spark plugs. One month later at myrtle beach the truck overheated again and was took to the toyota dealership in conway, s.c.. The mechanic said it needed a thermostat and a tune up.
Vehicle power drops suddenly. At times there is no response when accelerator is depressed and then it will suddenly take off.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 11,899 of 36,659 model years in the NHTSA data (top 32% most complained about).
On average one model year of the 4X4 has 5 complaints (6 years in the data). This year has 8, above average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Other years of this model
Questions and answers
What are the most common problems with the 1991 Toyota 4X4?
Owner complaints to NHTSA most often mention: engine and cooling, service brakes, electrical system. Total complaints: 8. The most frequent symptoms in complaint texts: overheating, coolant loss (25%), A/C or heater (13%), headlights and tail lights (13%).
How many service bulletins (TSB) were issued for the 1991 Toyota 4X4?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 1991 Toyota 4X4 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 1991 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.