1994 Cadillac Seville engine problems

Filed Jul 22, 2005 · Engine, Visibility · 147,295 miles · AZ · 1 injury

1994 cadillac seville had hot coolant pour onto the driver's foot causing severe burns.*mr the vehicle was towed to the dealer. Upon inspection of the vehicle, it was discovered the heater core had ruptured, in addition the dealer recommended that the water pump water pump housing, hoses and thermostat.

Filed Mar 25, 2005 · Engine · OH

Oil was leaking out the lower crank case, which could cause the vehicle to overheat and cause the engine to fail. Manufacturer was contacted by consumer, and was aware of the problem.

Filed Nov 16, 2002 · Engine · NJ

There is a known problem with crank case lower seal on the 4.6 northstar engine and manufacturer has not responded. Oil leak is hitting exaust and cat converter which could cause a fire. This should be a safety issue and a recall for repair. There is a tsb on this issue , but no recall. I want a fix!!! Local dealer wants over $2000 for repair! Dt

Filed Aug 18, 2002 · Engine · CA

On 7/25/01, engine overheated as per engine screen. 255 degrees. Replaced "failed thermostat" topped off coolant and rechecked. Car smelled like engine hot. Vehicle lost coolant. Called putnam cadillac/buick. They changed oil & checked. No detection of overheating. 7/23/02 car driven to putnam cadillac. $5,153 charged to tear down heads & found 5 stripped head bolts on front bank and one on rear bank. Six total thread repairs. Cylinder head pressure tested. Resurfaced & reset valves. 6 heli coils installed. Reinstall cylinder heads after machine shop repairs. Heads were checked for warpage due to extreme heat caused by manufacturer's over-torquing the head bolts and spinning them in their threads. New valve seals added. Replaced water pump. Cadillac servicing center revealed that numerous other 94 sls cadillacs have been reported at other service centers to have the same flaw of "loose headbolts coming loose from the engine block causing head gaskets to leak & overheating." this is dangerous and expensive because the computer in the engine states "shut off engine" this occurred july 23, 2002 while driving at night . We had to pull off the shoulder of the freeway and allow the car's temperature to decline. We limped home dangerously by having to drive slowly and stop several times to keep the temperature down.

Filed Mar 2, 2002 · Engine · VA

Engine shut down while driving up mountain road due to overheating. Problem diagnosed by dealer as blown head gaskets due to loosening of head bolts. Problem is use of steel bolts directly in aluminum block which vibrate loose over time, causing loss of engine coolant. Widely recognized problem by repair shops and there is a technical sevice bulletin addressing this repair; nevertheless cadillac claims it is not aware of any design defect and refuses to assist with repair. Repair cost $4,600 to rebuild engine or $7,800 to replace engine. Problem developed with no warning and caused occupant and family to be stranded.

Filed Jun 30, 2001 · Engine · OH

The cylinder head bolts stretched resulting in oil leak and head gasket failure. Leak varies from drops on garage floor to smoking oil cloud from engine compartment. Cadillac misdiagnosed problem while under warranty and performed wrong repair twice. Cadillac will not assume any responsibility even though this is a common problem regardless of engine mileage.

Filed Apr 3, 2001 · Engine · NY

Engine half case oil seal failed resulting in leakage, possible engine fire hazard.

Filed Jan 29, 2001 · Engine · MI

Engine is made of 2 metals, they expand differently, oil usage in vehicle is 3 quarts weekly. Cadillac dealer made consumer aware of this fact.

Filed Jan 23, 2001 · Engine · TN

Oil is leaking from crank case, possibly causing other related damage. *ak the oil leak is due to design flaw, which the manufacturer is aware of but relactant to repair beyond warranty.

Filed Jan 16, 2001 · Engine · MA

Engine oil leaks, in two places, possible head bolts stripped, gm recommends replaceing engine at a cost of $7,500. The engine has only 72,500 miles on it. This is not acceptable. Gm should repair this problem at no cost, due to problem originating from a design problem.