2000 Buick Lesabre: engine overheating

Filed Jul 28, 2025 · Acceleration, Driver assistance · TN · fire

The plastic pice holding the throttle lines snapped off and my cable went under my bracket and it took off I destroyed the Transmission putting it in neutral to stop the vehicle after I had gotten it stoped the fire from the engine was small I will recommend this car and yes I do want another one but it is a common issue I will recomed this car because the body is made out of steel and they are basicly tanks with the 3800 Series II and it was easy for me to spot what was happening and get ahead of it before it got worse I drove 5 miles with this happening before the engine overheated and caught fire

Filed Dec 19, 2005 · Engine · 75,630 miles · MI

Hard starting, lack of power, hesitation gm dealer diagnosed intake leak by egr valve (air and coolant leaks) dealer replaced intake plenum (non warranty).

Filed Dec 19, 2003 · Engine · FL

Coolant leakage from coolant resevoir into air intake manifold. It is obvious that engine coolant drawn into cylynder head can have numerous results damaging to the operation and longevity of the engine. Further the loss of coolant form the resevoir can result in inadequate engine cooling and high and destructive engine temperatures. While there was no observed evidence of coolant loss before gmc recall to "tighten throttle body bolts", the loss of coolant accelerated after the unsuccessful effort to eliminate coolant loss. That this problem has been present since early in 2000 model of the buick lesabers is evidenced by complaints and service reports. The recall program of summer 2003 was an inadequate solution to the problem. In addition to this history, the existance of long standing problem is confirmed by gmc's recall in the summer of 2003. My complaint is heightened by the fact that both the dearler and gm refused to investigate the coolant loss observed after the recall as a part of the recall and used the expiry of my original warranty after the recall announcement and also after the completion of recall servicing without fully charging me for the investigation and required remedial work to resolve the coolant leakage malfunction. During my research into this situation I encountered a "mr good wrench" who worked in service department of a large buick dealer. While discussing the throttle body leakage, he commented the "buick has an even bigger problem with the "plastic section of the intake manifold which is encountering frequent cracking of this section of the manifold resulting in loss of coolant and major engine operation difficulties. Sounds to me this problem which is even more damaging and expensive to consumer than the throttle body leakage merits an investigation.

Filed Mar 9, 2003 · Engine · 24,223 miles · DE

Upper intake manifold had to be replaced due to a coolant leak. This type repair appears to be very unusual for this age of automobile. Complaint submitted by family member.

Filed Feb 9, 2003 · Electrical, Engine · 32,000 miles · MO

Two complaints. One-coolant leaking on hot engine parts from defective intake manifold plenum. Two- car stalls on occasion while driving resulting in no power steering or brakes.

Filed May 27, 2002 · Lights · AL

Drivers side rear signal light blown, socket burnt/discolored and plastic piece that socket twist into is melted by the heat of the socket. Passenger side signal light not blown but socket shows signs of overheating and discoloration possibly burnt.

Filed Aug 12, 2001 · Lights · OH

Twi-light control, headlight switch, faulty, turns headlights on in daylight then switch overheats, could cause fire under dash, have to turn ignition switch off to let headlight switch cool off.

Filed Jun 2, 2000 · Electrical, Steering · NY

While traveling dashboard/ air conditioning and radio overheated. Also, steering wheel failed to work properly. Please provide further information.