2000 Cadillac Deville: engine overheating

6 of the 225 complaints about the 2000 Cadillac Deville describe engine overheating.

owner complaints: 6
of this car's complaints: 3%
typical mileage: 77,000
recalls: 0

Is there a fix? 82 service bulletins cover this area of the car. See below

Engine overheating by model year

2004
3
2003
3
2002
4
2001
4
2000
6
1999
14
1998
9
1997
5
1996
4
1991
1

What owners say

Filed Jul 25, 2016 · Engine · NY

Engine began overheating and took it to our mechanic who replaced the water pump. Engine continued to overheat and same mechanic replaced all of the upper seals. Eventually, a pressure test and camera insert by my mechanic confirmed a blown head gasket. Confirmed that result with pepe cadillac in white plains, ny. Checked the price to have the head gaskets replaced, but since this engine has to be removed from the bottom of the vehicle, the costs are outrageous and the only acceptable fix for these aluminum heads are bolts rather than the gm serts. Bad engine design by gm since their bolts were too short and the bite was not large enough in the block to prevent the head gaskets from blowing. Sad epitaph for a car with only 65k lightly driven miles on it having spent all of it's off road life in our garage. After much research, I was able to confirm that this is an inherent problem with the northstar engine during that period and was finally solved after 2004. Gm knows about the engineering northstar engine problem but refuses to accept responsibility for it.

Filed Apr 15, 2015 · Engine · 101,000 miles · TN

Tl* the contact owns a 2000 cadillac sts. While driving 65 MPH, the engine cooling system overheated without warning. The failure recurred twice. The vehicle was taken to the dealer. The technician diagnosed that the head gasket needed to be replaced. The vehicle was not repaired. The VIN was not provided. The manufacturer was notified of the failure. The failure mileage was 101,000. Updated 05/06/16

Filed May 16, 2014 · Engine · 77,000 miles · CA

Tl* the contact owns a 2000 cadillac deville. The contact stated that the aluminum engine heads cracked when the vehicle overheated. The vehicle was taken to a dealer where the technician diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacture was made aware of the failure. The failure mileage was 77,000 and the current mileage was 83,000.

Filed Jul 28, 2010 · Engine · 52,000 miles · HI

Tl* the contact owns a 2000 cadillac deville. The contact stated while driving at 25 MPH, the engine would abnormally overheat. The contact received a radiator flush and the water pump was replaced yet the failure persisted. The contact stated he would continuously add anti-freeze to the engine to stop it from becoming excessively hot. The contact took the vehicle to a local mechanic where it was discovered that there was an eight inch fracture in the engine block. The manufacturer advised the contact that because the vehicle was over ten years of age, they would not provide any assistance. The contact was concerned that the engine fracture would potentially cause the entire engine to fail. The vehicle was not repaired. The failure mileage was 52,000.

Filed Apr 10, 2009 · Engine · 112,000 miles · IL

"check coolant" light, overheating, taken to garage "free lance" cadillac mechanic researched problem that it is a factory related incident that the first owner of the car ignored and should have been sent back to gm and they would have fixed it. I am a second owner to car and I have "inherited" this problem. Blown head gasket............you pour coolant in and it runs right out the tail pipes!

Filed Jul 20, 2006 · Engine · 48,000 miles · CA

The cooling fan on my cadillac deville failed to operate which caused the vehicle to overheat, leading to a cracked header. The engine had to be replaced at only 48k miles.