The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start on Buick Lucerne

The fuel pump may fail causing the engine to stall and not restart.

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Average mileage: 86,291 (10,000–180,000)
Engines affected: 3.8L V6, 3.9L V6, 4.6L V8
6 model years affected: 2006, 2007, 2008, 2009, more2010, 2011
54 people reported this problem
39 people shared problem details
2009 Buick Lucerne- 3.9L V660,000
Fuel pump stopped pumpimg without warning. Had car towed to my garage wgere they advised me fuel pump was defective. after replacing fuel ump it was discovered the fuse box under the rear seat was fried. Car was then toewd to the local dealer where fuse bx was replaced and reprograming was necessary. i checked for a recall and was told there was none.
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2009 Buick Lucerne- 3.9L V684,000
FUELPUMP RELAY BURNS OUT, X 3, DEALER REPLACED FUSE BOX, CLEANED BATT. TERMINALS, TRACED WIRES, REPLACED PUMP, AND NOW SAYS IT IS THE FUEL GUAGE SENDER THAT IS BLOWING RELAY. GUESS WHAT; THEY WANT TO MAKE ME PAY FOR ALL THIS WORK. HAD TO HAVE CAR TOWED TWICE, DEALER WOULD NOT GIVE ME A SPARE RELAY SO I WOULD NOT HAVE TO HAVE IT TOWED. I WAS THE ONE WHO BROUGHT THE HOT RELAY PROBLEM TO THEIR ATTENTION. THIS IS A TIME BOOM WAITING TO HAPPEN. BURNING RELAY NEXT TO BATTERY UNDER BACK SEAT.
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2008 Buick Lucerne- 3.8L V666,000
Stop and tried to start the car and it would not. It was traced to a bad fuel pump- car has abt 66,000 miles
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2008 Buick Lucerne- 4.6L V886,000
same issue. would crank but not start. The fuel pump and relay were replaced and not even a month later, the relay melted from who knows what. i talked to the mechanic that fixed it again and he stated that the fusebox or module has problems with it that may be an engineering flaw.
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2008 Buick Lucerne- 3.8L V6103,000
Car wouldn't start, checked fuel pump it stopped working also relay was burnt & melted a little. Replaced fuel pump and relay. Drove for @20 miles the car cut off and the new relay had melted. Put in another relay and the car started but i noticed the fuse box and relay was very hot to the touch. May have to replace fuse box before my fuel pump blows again
2008 Buick Lucerne- 4.6L V886,000
2 weeks ago, went to start vehicle and it was not getting gas. Had it towed and diagnosed as fuel pump. Had pump and relay replaced (relay was melted). 2 weeks later, I went to start the vehicle, same problem. Had car towed again and once again the relay is fried. Mechanic opened up fuse box and seems to be an electrical problem where too much power is going to the relay causing overheating and pump failure.
Fuel pump failed and replaced. One month later it failed again. Turned out the fuse panel under the backseat was overheating and meeting causing short to the fuel pump. Mechanic said that box should never need maintenance. Buick refused to speak to me about problem.
2006 Buick Lucerne- 3.8L V694,000
Fuel pump relay burnt out twice in 30 days....car won't start...need new fuel pump
2010 Buick Lucerne- 3.9L V673,000
Went to start car, didn't start. fuel pump drew down too many amps and burned fuel pump module had to replace fuel pump, fuel pump module and electronic injector.
2009 Buick Lucerne- 3.9L V647,568
car won't start turns over but thats all. replaced fuel pump drove from shop turned car off would not start again fuse relay fried
2008 Buick Lucerne- 3.8L V650,700
car cranks but no fuel to engine got towed dealer says fried fuse box I have read many people with same issue GM should racall Dealer charging me $530.15 to fix I think GM should pay what does anyone else think.
2008 Buick Lucerne- 3.8L V6108,000
Fuel pump relay overheating and burning up. repeated failures after replacement. What is causing this? Must be getting to many amps
2009 Buick Lucerne- 3.9L V676,000
fuel pump relay hot and melted and melted part of the fuse box. replaced relay car ran for 2 days then quit again fuel pump failure
2008 Buick Lucerne- 3.8L V660,000
Same problem with fuel pump, relay, fried fuse box on our two 2008 Lucernes; now on one of them I'm having to hold the ignition key for several seconds before the car will start, and I'm concerned that it's related to the same problem. Obviously the problem is a manufacturing defect (the reason Buick no longer makes the Lucerne?), and obviously Buick isn't going to do anything about it.
2006 Buick Lucerne- 4.6L V8170,000
car wont start bought new starter, fuel pump, and filter still wont start and when vehicle was working it would jerk a little bit when driving and overheats when in one spot or braking a lot. need help ASAP a worker said it might be the sensor I don't know.
2009 Buick Lucerne- 3.8L V657,000
Car died, cranks but won't start, towed to dealer, fuse box under rear seat fried, dealer replaced. Noted the original equipment battery was 6+ years old.
2009 Buick Lucerne- 3.9L V6112,000
Same problem, replaced pump and relay, still won't start. Fuse block under rear seat smells burnt. If its not a warranty or recall can any auto tech work on it? would like to stay away from dealers...
2006 Buick Lucerne- 4.6L V8164,000
Sometimes it will start and other times it will not
2011 Buick Lucerne- 3.9L V649,000
Had same problem with car tuning over and not starting. Dealer rep said it was a fried fuse board. just got car back from dealer but worried what caused the fuse to burn out.
2009 Buick Lucerne- 3.9L V684,000
the engine wouldn't start. It acted like it was out of gas. After checking the fuse to the fuel pump, it started working.
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