Acura Problems

RepairPal has identified the most common problems with the Acura as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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51
Known Problems

An updated powertrain control module (PCM) is available from Acura. Acura requires this upgraded PCM be installed whenever a re-manufactured automatic transmission is installed. The updated PCM is designed to improve transmission durability under certain specific driving conditions.

The exhaust manifold commonly fails on the 5 cylinder engine and may develop an exhaust leak that is especially noticeable when the car is cold.

The Check Engine Light may illuminate with a stored code P2422. Our technicians tell us this can be caused by spider webs in the EVAP system charcoal canister vent hose. Acura has made available a spring to install inside the vet hose to correct this issue.

Engine ping may be noted under moderate to heavy acceleration. Our technicians tell us a revised knock sensor and powertrain control module (PCM) software are available to correct this concern.

The exhaust manifold commonly fails on the 5 cylinder engine and may develop an exhaust leak that is especially noticeable when the car is cold.

The Check Engine Light may illuminate because the hydraulic valve that controls the engine valve timing stops functioning correctly. A failed engine timing valve will require replacement.

The switch that controls the cooling fan gets stuck in the "On" position causing the fan to run continuously, which drains the battery.

The exhaust gas recirculation (EGR) valve or the evaporative emission control (EVAP) solenoid can stop functioning. Failure of either one can cause the Check Engine Light to illuminate.

The intake manifold gasket can sometimes develop a leak.

Using the incorrect oil in the rear differential on cars with a limited slip differential causes a clattering noise on turns. Replacing the oil with oil specified by Acura should fix the problem.
The anti-lock brake system can sometimes leak brake fluid, making the brakes less effective.

A loud squealing noise on high mileage cars can be confused with a loose fan belt. The distributor should be inspected because it can seize, which can cause the timing belt to slip resulting in serious engine damage.

If the engine oil is not changed frequently, the car can develop a rattling noise from the hydraulic lifters in the engine.

The Acura RL experiences occasional problems with sensors in the airbag system, causing the safety restraint system (SRS) light to turn on. The sensors can be very expensive to replace. Acura may offer a discount as a gesture of good will.

A faulty tire pressure sensor may cause illumination of the low tire warning light even if tire pressure are correct. If this condition occurs the affected sensor(s) should be replaced.