Intake Manifold Crack


really awful
Typical Repair Cost:
Average Mileage:
68,350 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. repair intake (3 reports)
1999 Buick LeSabre engine problems

engine problem

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1999 Buick LeSabre Owner Comments

problem #3

Dec 092013

LeSabre Limited 3.8L

  • Automatic transmission
  • 60,000 miles


Just purchased used. Plastic Plenum (intake manifold) melted and antifreeze went into oil . Hubby didn't know and refilled antifreeze again and almost locked up engine. This was fixed and mechanic changed oil 4 times with a lot of sludge being the issue. He said drive it a week and change oil and repeat x3 . Since a lot of deep snow didn't drive much, Oil change at WalMart 12/31/13, on 1/6/14 went 1 mile and oil pressure went to zero and heard loud knock and shut it off leading to unknown problem /fix #2. Either Rod or oil pump.

- pderr36751, Rockville, IN, US

problem #2

Dec 032011

LeSabre ES 3.8L

  • Automatic transmission
  • 75,000 miles

I know the car is 12 years old, but come on, failure at 75,000 miles? I thought this was suppose to be one of the best engines made. This care was very well taken care of. Literally driven to church and back by a little old lady, my mom. Never had a check engine light or any other indication. Heater started blowing cold air and engine would not restart after pulling over and parking to add water.

- David P., New Berlin, WI, US

problem #1

Mar 262009

LeSabre SE 3.8L

  • Automatic transmission
  • 70,000 miles

Thanks to AutoBeef, found this is a common problem with the engine, and also that the repair can fix the problem. I guess it's a pretty good engine with this one glaring problem. Car had coolant seeping into the cylinders from the crack, dark smelly smoke and then died. Towed and repaired for about $1000 at national chain. I was told it could have been done by a "local shop" for about $700.

- Jon A., Plymouth, MN, US

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