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Problems for specific GMC Sonoma years:

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Repairpal verified 2000 GMC Sonoma problems

 

Verified for the GMC Sonoma

The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.

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Verified for the GMC Sonoma

A Loose or worn gas cap may cause Check Engine Light to illuminate.

20 Reports
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Verified for the GMC Sonoma

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. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

10 Reports
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Verified for the GMC Sonoma

The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.

12 Reports
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Verified for the GMC Sonoma

The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

4 Reports
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Verified for the GMC Sonoma

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

10 Reports
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Verified for the GMC Sonoma

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

7 Reports
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Verified for the GMC Sonoma

A fluid leak may develop from the transmission output shaft seal. This leak may cause the transmission mount to become oil soaked and require replacement of the mount along with the leak repair.

8 Reports
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Verified for the GMC Sonoma

A cover plate on the front of the engine may develop a coolant leak, resulting in an engine overheating condition. This plate covers the location where the water pump was installed on previous versions for this engine. Replacing the gasket for the cover plate and refilling the cooling system is generally all that is required to correct this concern.

6 Reports
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Verified for the GMC Sonoma

The CD player in the radio may fail. Our technicians tell us that the radio will need to be removed and sent out to a radio repair shop to correct this condition.

7 Reports
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Verified for the GMC Sonoma

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

47 Reports
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Verified for the GMC Sonoma

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

7 Reports
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Verified for the GMC Sonoma

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

22 Reports
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