The main relay, which supplies power to the fuel pump , can fail. The engine will crank but fail to start (or start intermittently).
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.
The car may not start or drive well because of problems with the ignition coil . This can be resolved by replacing the ignition coil .
The 1990-2001 Acura Integra, all models, has a known issue with engine oil leaking from the ignition distributor shaft seal.
Leakage from the shaft seal coats the electrical components of the distributor with engine oil causing:
Cleaning the distributor cap and rotor can help or resolve driveability issues temporarily, but the mentioned issues will return shortly.
Once this issue is diagnosed , the ignition distributor shaft seal must be replaced, and the distributor shaft bearing must be inspected.
The 1990-2001 Acura Integra engine oil pressure sensor is known to leak from normal operation.
More information about the oil pressure sensor here .
To correct the leak, the sensor must be inspected, properly sealed and installed, or replaced with new.
The 1990-2001 Acura Integra, all models, has a known issue with ignition distributor shaft bearing failure, which causes:
The ignition system uses the distributor to send high voltage electricity to the spark plugs at the right time. It accomplishes this timing mechanically by a shaft, which connects the crankshaft and ignition distributor, so they spin at the same rate. That shaft, part of the distributor, rests in a bearing inside the distributor.This bearing, the distributor shaft bearing, is known for failing, and allowing the shaft to move slightly.
As the bearing fails, it allows the shaft to move away from the shaft seal, and oil pours into the distributor cap , causing misfires.
The play in the shaft can also cause contact with the crankshaft position sensor, causing a no start problem.
Total bearing failure will be most evident from the grinding noise that changes with engine speed, and oil in the ignition distributor cap.
If the bearing is making noise, driving or running the vehicle can result in catastrophic engine failure.
To correct this issue, the ignition distributor and shaft must be replaced. Any damage to the crankshaft position sensor will necessitate replacement as well.
The 1990-2000 Acura Integra, all models, is known for premature alternator bearing failure. The alternator shaft bearing alerts of mechanical failure by making a howling or grinding noise, but other symptoms may appear, including:
Continued use after the alternator makes these noises generally result in loss of the serpentine belt , power steering, air conditioning and battery power.
The correction is to replace the alternator immediately.
The 1990-2001 Acura Integra, including all Integra models, commonly has mechanical issues with the manual transaxle .
Drivers will notice that upon decelerating, the transmission will shift to neutral on its own, and some gears, normally second, will be difficult or impossible to select with the gear selector. Lastly, a grinding noise accompanies these issues. It changes with engine speed, and comes from the transmission.
The engine connects to the transmission with a clutch and shaft. The clutch engages or disengages the transmission input shaft, and the transmission input shaft drives the transmission. The input shaft is held in place by bearings which allow it to spin. When those bearings fail, the input shaft can move, and the problems noted above become very evident due to the loss of synchronization of the transmission.
To correct the situation, the transmission must be removed from the vehicle, disassembled, rebuilt, and reinstalled in the vehicle.
The best way to ensure this doesn’t happen to you is proper maintenance of the transmission.
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