If you find CarComplaints.com is helpful ... We rely completely on word of mouth. Talk about us on Facebook, Twitter, tell your mother-in-law. Help us help more people.

6.0

fairly significant
Typical Repair Cost:
No data
Average Mileage:
136,500 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
1986 Buick LeSabre engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 1986 Buick LeSabre:

Unsubscribe any time. We don't sell/share your email.

1986 Buick LeSabre Owner Comments

problem #1

Jul 122010

LeSabre 3.8L V6

  • Automatic transmission
  • 136,500 miles

A D V E R T I S E M E N T S

Engine dies unexpectedly at any time. Seems to happen in hot weather, Had fuel pump, screen, fuel filter replaced. Then Ignition Module replaced. Mechanic says there is 40 pounds of fuel pressure after fuel pump installed. Fuel injectors are operating OK.

When engine dies, fuel line under hood is tested via unscrew cap. Gas pressure is supposed to squirt gas when valve is pushed. Gas slowly seeps out. It's as if something is telling the fuel pump to stop sending gas.

After 10 minutes or more, car will start and run ... and either die again, or keep running. Mechanic is as baffled as I. Car has a new engine 4 months ago, new spark plugs and wires. After new fuel pump, filter and ignition module installed, car runs better, yet primary problem of engine dying remains.

- , Tigard, OR, USA

Not what you are looking for?