Close

2004 Buick Regal Problems

Find the most common issues based on 2004 Buick Regal owner complaints.
Tap theto learn more about the most common 2004 Buick Regal problems.

Most Common 2004 Buick Regal Problems

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 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 water pump may develop a coolant leak resulting in an engine overheating condition.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more

Common 2004 Buick Regal Repair Estimates

Looking for a particular 2004 Buick Regal problem?

0 Known 2004 Buick Regal Brakes Problems

1 Known 2004 Buick Regal Drive Train Problem

You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be com...

3 Known 2004 Buick Regal Electrical & Lights Problems

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

6 Known 2004 Buick Regal Engine Problems

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 water pump may develop a coolant leak resulting in an engine overheating condition.
The fuel pump may fail causing engine to stall and not restart.

2 Known 2004 Buick Regal Exhaust & Emissions Problems

The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

2 Known 2004 Buick Regal Heating & Air Conditioning Problems

The display on the heater and AC control panel may become dim or go completely blank. Our technicians tell us the control panel must be replaced to correct this fault.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

1 Known 2004 Buick Regal Maintenance Problem

Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.

0 Known 2004 Buick Regal Miscellaneous Problems

2 Known 2004 Buick Regal Suspension & Steering Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with your local GM dealer to find out what the latest repair i...

17
Known 2004 Buick Regal Problems & Complaints

One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
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 intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.
The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.
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 display on the heater and AC control panel may become dim or go completely blank. Our technicians tell us the control panel must be replaced to correct this fault.
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 fuel pump may fail causing engine to stall and not restart.
The water pump may develop a coolant leak resulting in an engine overheating condition.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with your local GM dealer to find out what the latest repair i...
The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be com...
The high pressure power steering hose will commonly leak fluid; it should be replaced.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
Researching a 2004 Buick Regal?
Get maintenance costs, reviews, recalls and more.