Chevrolet Monte Carlo Problems

RepairPal has identified the most common problems with the Chevrolet Monte Carlo 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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37
Known Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.

The water pump may develop a coolant leak resulting in an engine overheating condition.

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault.

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.

The engine may start and stall with the security light flashing. This is commonly caused by a failed passlock sensor which is part of the ignition lock cylinder. A secondary cause could be the ignition switch itself. Worn contacts inside the ignition switch can cause voltage drop issues which can affect the passlock system. Proper diagnoses should be performed before replacing any parts.

One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.

The timing belt may fail prematurely. Our technicians tell us that the belt tensioner and idler pulleys should be replaced when the timing belt is replaced.

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line must be replaced to correct this type of leak.

The fuel pump may fail causing engine to stall and not restart.

The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.

The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.