1987 Isuzu Trooper problems

Common 1987 Isuzu Trooper problems

The Isuzu Trooper, produced between 1987 and 2003, has been known for several common problems that affect its performance and reliability. Here are some of the most frequently reported issues based on complaints from owners:

• Engine Oil Light Illuminated: If the engine oil warning light is lit even after refilling the oil, it may indicate a leak in the differential, particularly around the 55,000-mile mark. This would require replacement of the differential, which can be costly at a mechanic but can be done at home with a replacement part from BreakerYard.

• Excessive Fuel Use and Starting Problems: These symptoms can indicate a failing fuel pump. Replacing the fuel pump is a complex task, but online guides are available to assist with the process.

• Rough Idling: Rough idling on the Trooper is often due to a damaged intake manifold gasket. Replacing the gasket is a relatively straightforward task, and parts are readily available.

• Ticking From Valve Train: A ticking sound from the engine valve train area is commonly caused by varnish build-up in the hydraulic lash adjusters. Using a higher quality oil can help resolve this issue.

• Oil Leak: Isuzu has acknowledged an oil leak issue, which is often caused by a faulty front crankshaft oil seal. A revised design is available from BreakerYard to address this problem.

• Rattling From Front of the Car: A rattling sound coming from the front of the car is often due to timing chain tensioners wearing out faster than on other vehicles. Replacement tensioners are available from BreakerYard.

• Power Loss: Power loss and a check engine light may indicate a failing catalytic converter, which cannot be repaired and requires replacement.

• 4WD Indicator Staying On: If the 4WD indicator stays on even when in 2WD, it may indicate a faulty vacuum hose, solenoid, or engine valve that needs replacement.

• Differential Leaking: Oil weeping or leaking from between the two rear wheels is often caused by the differential leaking, requiring replacement to resolve the issue.

In addition to these issues, the 1987 Isuzu Trooper has been known to have engine and performance problems, including head gasket leaks and coolant or oil leaks. These issues can be caused by various factors, such as worn-out parts or faulty components, and may require replacement or repair.

Why did Isuzu stop making the Trooper?

SUV market changes and safety concerns doomed the Trooper

Unfortunately for Isuzu, mid-size classics like the Honda CRV and Toyota Rav-4 essentially cornered that market before they could find footing with their oddly conceived Vehicross and other compact models.

What engine is in a 1988 Isuzu Trooper?

1988 ISUZU TROOPER, injected 4-cylinder, 2.6 l, 5-speed, 4-wheel drive. Engine code 4ZE1.

What is the fuel capacity of the Isuzu Trooper?

22.5 gal

Fuel & MPG

315.0/405.0 mi. 22.5 gal.

What engine is in a 1990 Isuzu Trooper?

The 2.8-liter, 60 degree V6 engine features a cast iron block and cylinder heads, durable five main bearing crankshaft, throttle body fuel injection and transistorized ignition system. Weighing only slightly more than Isuzu's 2.6-liter four cylinder, the V6 motor develops 120 horsepower and 150 ft/lbs.

1987 Isuzu Trooper car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Isuzu Trooper problems, we found that the most common problems with these 2023 model year vehicles are:

• Power train problems
• Fuel system problems
• Gasoline problems
• Structure problems
• Wheels problems

The graph below shows statistics for all 1987 Isuzu Trooper vehicle components and the number of complaints received.