2002 lesabre custom won't keep running

5

Asked by May 17, 2013 at 11:54 PM about the 2002 Buick LeSabre Custom

Question type: Maintenance & Repair

It was fine but now when I turn the lights on or heater fan or interior lights up on bright it
quits running. The daytime running lights are on and no problems then any of the other
elec things come on it quits? I checked the alternator & it's charging fine. I drove it to
town, parked all was fine. Come out of the Doctors & this was happening.

8 Answers

86,595

Make sure your battery is fully charged, a trickle charge overnight should do the trick. Next check the voltage at the battery with the engine running, it should be around 14.2 volts, if not then the alternator needs to be tested, some parts stores have an alternator tester and do it for free.

5

Battery is good & Alternator is good.

86,595

OK then next you will have to check all of the ground and power pathways to make sure they are clean and tight, check the main battery cables for a voltage drop, a lot of people think just because they look good that they are and the corrosion can creep right up inside a cable causing all kinds of problems.Continuing further will take some time, you might have to get a service manual to find out where all of the locations are.

Best Answer
5

Thanks, yes I have a book on this car. I've checked relays & fuses and everything else I can think of.When it first happened the low beam light on drivers side wouldn't come on when the daytime running lights did. I figured a burnt out bulb, then I changed it with a known good one & it still never came on? So I played with the the relays thinking something was up there but all seemed normal. Now with the key on and with the engine running (or not) as soon as I start to use more elec it stalls out. If I leave the headlights off, then neither the signals will blink or the horn honk when the motor is running? I am now pulling my hair out one at a time!! LOL

5

PS: the old light is on like it should be when the DRL's are on

86,595

You are describing a classic grounding problem. Has the car been where they used salt on the roads in winter or along the coasts? salt can reek havoc with electrical systems once it is in the system it is really hard to clean out.

5

No, it was parked all winter I used my truck & they don't salt here, it gets very cold but not much snow.

90

check the wiring harness leading into the air breather... the main pcm is located in there... could be a wire touching or frayed.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 2,340 nationwide LeSabre listings starting at $1,795.

ZIP:

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,970
#2 John Saffrahn
John Saffrahn
Reputation 1,650
#3 POPEYE99
POPEYE99
Reputation 1,350
View All

Related Models For Sale

Used Buick Park Avenue
511 listings starting at $1,400
Used Chevrolet Impala
792 Great Deals out of 34,371 listings starting at $799
Used Buick Regal
123 Great Deals out of 10,939 listings starting at $1,850
Used Buick Century
1,071 listings starting at $3,300
Used Honda Accord
814 Great Deals out of 81,559 listings starting at $899
Used Cadillac DeVille
6 Great Deals out of 1,955 listings starting at $1,750
Used Pontiac Grand Prix
28 Great Deals out of 3,713 listings starting at $1,100
Used Chevrolet Malibu
1,007 Great Deals out of 85,655 listings starting at $1,995
Used Mercury Grand Marquis
26 Great Deals out of 2,196 listings starting at $1,995
Used Nissan Maxima
345 Great Deals out of 25,215 listings starting at $1,400
Used Ford Taurus
255 Great Deals out of 20,458 listings starting at $1,500
Used Lincoln Town Car
29 Great Deals out of 2,074 listings starting at $1,995