Question about 2004 Buick LeSabre

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2004 Buick LaSabre. Transmission has been working fine. Last week drove approx. 50 miles and tranny started shifting hard. Jerky! Fluid was good. Shut car off and re-started and tranny worked fine again until yesterday. Drove about 25 miles and all of a sudden it started the jerky shifting again. Shut off car and re-started it and shifting was fine again. A local mechanic says it is the Mass Air Flow Sensor. Does this make sense or should I be looking for diff. problem. Thanks!!!!

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I think the mechanic could very well be right in this case

Posted on Oct 18, 2013

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Requires any professional obd2 diagnostic tool OBDII.NET

Posted on Jul 06, 2017

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Any obd2 diagnostic tool or car parts need,can check uobd2.net

Posted on Oct 19, 2013

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SOURCE: 1997 buick lasabre custom high idle, transmission, stalling

had same problem i would check the Idel Air Valve and also check all of your vaccum hose lines makeing sure there are no cracks or splits in rubber connectors if there is repair immediatelt because over time they start to dammage the internal parts fo the engine and if youve replace tps mass air etc. sounds like a vaccum hose problem

Posted on Feb 10, 2009

soc21610k
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SOURCE: 2004 Buick Regal. Hard tranny shifts.

Try some Lucas Transmission fix. that stuff has done wonders for almost all of my tranny problems

Posted on Jun 02, 2009

drsinister69
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SOURCE: 2003 Buick Rendezvous Transmission Problem.

I would try changing the filter, I've seen some that should be changed every 20,000 miles. You might want to check for any DTC codes stored for the transmission. Auto Zone will do it for free. If there is a code that might point you in the right direction.

Posted on Nov 08, 2010

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