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2003 Buick LeSabre Won't Start

I have a 2003 Buick LeSabre that would not start. I changed the fuel rail and got it to start, but it would stall right away. I unplugged the mass air flow sensor, and it would run without stalling, but it would run rough. The next day, I tried to start it again, and now when you turn the key, all of the power cuts out, just like it would if the battery connection was loose, but it's not. I changed the mass air flow sensor, but it wasn't starting before I changed it.

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Posted on Jan 02, 2017


SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.

Posted on Oct 17, 2008

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SOURCE: 1995 safari van w stalls when giving it gas.

maybe your iac valve is not working? it takes place of a choke or temp sender to computer could be bad which controls t I.A.C. known as the idle control valve,do you have any codes?

Posted on Sep 01, 2009

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SOURCE: 97 buick lesabre 3.8 Idles rough and stalls out.

ignition system not operating properly ,or intake air leak ...crank engine get a can of staring fluid spray around the intake if the motor idles up you got a leak hope this helps

Posted on May 08, 2010

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SOURCE: 1994 LeSabre: My 1994 Buick Lesabre is stalling out when the eng...

Replace crank sensor

Posted on May 31, 2010

J-Chris Ward
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SOURCE: My 86 300zxt starts then stalls right away, it has

There is a two terminal key switch on some Nissan's has start and run. The start is sending power to the coil when the key goes back to run there is no power getting to the coil. And some cars have a relay on the fuel circuit that primes the throttle body and turn fuel pump on after the car starts which might not be happening.

Posted on Feb 01, 2011

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