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

88,785

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.

88,785

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

88,785

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 1,973 nationwide LeSabre listings starting at $1,499.

ZIP:

Search Buick LeSabre Questions

Buick LeSabre Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,030
#2 John Saffrahn
John Saffrahn
Reputation 1,700
#3 Austin Gaboda
Austin Gaboda
Reputation 1,370
View All

Related Models For Sale

Used Buick Park Avenue
434 listings starting at $3,500
Used Chevrolet Impala
588 Great Deals out of 29,014 listings starting at $1,300
Used Buick Century
868 listings starting at $1,250
Used Buick Regal
95 Great Deals out of 10,256 listings starting at $3,495
Used Honda Accord
718 Great Deals out of 83,073 listings starting at $500
Used Lincoln Town Car
30 Great Deals out of 1,818 listings starting at $1,650
Used Nissan Altima
838 Great Deals out of 78,333 listings starting at $470
Used Cadillac DeVille
9 Great Deals out of 1,590 listings starting at $1,995
Used Toyota Camry
869 Great Deals out of 92,520 listings starting at $1,300
Used Mercury Grand Marquis
21 Great Deals out of 1,810 listings starting at $500
Used Ford Taurus
202 Great Deals out of 19,359 listings starting at $500
Used Pontiac Grand Prix
23 Great Deals out of 2,856 listings starting at $879
Used Chevrolet Silverado 1500
2,010 Great Deals out of 160,767 listings starting at $1,995