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Problems for specific Cadillac DeVille years:

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Newest reported 1995 Cadillac DeVille problems

 

Verified for the Cadillac DeVille

The EGR valve may stick open, causing a rough idle and/or the Check Engine Light to illuminate.

33 Reports
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The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

85 Reports
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Verified for the Cadillac DeVille

An updated PROM (Programmable Read Only Memory) chip may be available for the powertrain control module (PCM). Check with your dealer.

8 Reports
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Verified for the Cadillac DeVille

This powertrain control module (PCM) may develop a fault with its electrical ground location at the front of the engine block near the starter motor.

10 Reports
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Verified for the Cadillac DeVille

The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.

9 Reports
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Verified for the Cadillac DeVille

A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.

 

8 Reports
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Excessive carbon build up in the engine combustion chambers may be the cause of a smog check failure due to excess NOx emissions. A "top engine" decoarbonization cleaning procedure will commonly correct this concern.

7 Reports
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An intake manifold vacuum leak can develop from a variety of sources, often causing illumination of the Check Engine Light with codes P0171 & P0174 stored. Thorough diagnoses will be necessary to pinpoint the cause in order to make the correct repairs. A "smoke" machine is often used to isolate the cause of difficult to find vacuum leaks.

11 Reports
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One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

216 Reports
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The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.

60 Reports
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Verified for the Cadillac DeVille

Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

61 Reports
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Verified for the Cadillac DeVille

The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.

57 Reports
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Verified for the Cadillac DeVille

The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

64 Reports
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Verified for the Cadillac DeVille

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

28 Reports
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Verified for the Cadillac DeVille

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

48 Reports
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