Question about 1990 Buick LeSabre
When was it last fully serviced? Its an old car so whats its history, mileage, condition etc. Be honest with the answers as to its condition then we can help.
Posted on Mar 30, 2015
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Posted on Jan 02, 2017
I have a 1996 Lesabre. I had a similar problem that slowly got worse. I brought it to two different mechanics that did diagnostic checks and could only "suggest" what to replace to fix the problem. Their problem was that it wouldnt stall out while they had the mv. After replacing a bunch of sensors and the fuel pump/ filter, I solved the problem by replacing the Crank Sensor. Its located behind the lower crank pulley on the 3.8 lt motor. Hope this helps!
Posted on Oct 29, 2008
Try the WD-40 spray in intake of throttle body with air intake hose off, to see if it will kick at all, even for a second or 2. We need to confirm whether your losing fuel or spark when it dies. Ignition & fuel, can cause similar symptoms in this case.
Posted on Apr 20, 2009
Check fuel rail pressure.
Add fuel to beyond 1/2 tank.
A weak fuel pump do not like to ran low on gas.
When was the last gas filter and fuel pump change?
90-120,000 miles is the typical change out.
Fuel pump like to quit on a HOT day.
Test the pressure and see is it within specification.
Posted on Jul 15, 2009
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