Question about 2002 Buick LeSabre

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2002 buick lesabre spits sputters voltage jumps

New battery and alternator, still spits sputters and will die. it always restarts and when it runs it runs good, but will randomly w/w.o. a.c. running spits, sputters and will act like it is getting no gas and the voltage jumps from 12 up to 15...usually 14.7 when running smoothly. HELP!! It doesn't always do it, some parts of somedays it runs perfectly, other parts of some days it won't run for 5 feet

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  • 3,791 Answers

Check you have good earthing points, also check the earthing strap from engine to shell. main earthing point follow the negative lead it will go to the shell.

Posted on Jul 26, 2017


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Posted on Jan 02, 2017

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SOURCE: 92 buick lesabre new battery, alt tested fine runs, then won't with lights

It sounds like there is a short or something...something is drawing power constintly and draining the battery. Something like this is usually hard to diagnose and requires a lot of electrical testing to determin where the power draw would be coming from in order to fix the problem. I would say u may need to have somone test your electrical connections and whatnot to find the source of the problem. Hope this helps any, good luck!

Posted on Nov 08, 2008

  • 1 Answer

SOURCE: 1992 buick lesabre runs then dies

my car was doing the same thing i replaced alot of parts and it finaly died at my machanics shop he hooked a cpu to it and it was the crank shaft positioning senser if it drive and dies but also after you drive and it wont start right back up thats what id look into

Posted on Jul 22, 2008

  • 58 Answers

SOURCE: 2000 Buick Lesabre runs like ****

Sounds like a bad spark plug or spark plug wire arching out causing an engine misfire.

Posted on Nov 12, 2008

  • 215 Answers

SOURCE: 2002 Buick Rendezvous after about 5 miles of

Try replacing the fuel filter. If that's not it you might take your coil pack and get it tested at a parts store like Advanced Auto. Hope this helps.

Posted on Jul 08, 2009

  • 63 Answers

SOURCE: 1995 buick lesabre shuts off while driving,engine

Plugged fuel filter. There are two - one in the tank and one in the fuel line. Probably the one in the fuel line so change that one first.

Posted on Jul 15, 2009

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What was the original problem before you replaced the alternator?

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