Question about 2001 Buick Regal
If the trans is slipping then the problem is real and will need a shop to diagnose this. Unless you are capable of following a diagnostic trouble tree from the manufacture and also have a basic testing meter and a diagnostic scanner there will be nothing you can do at home. You have four possible problems. A engine performance issue, a bad computer, a wiring issue, or a failed transmission or solenoids internal to it. It is not in your best interest to be fixing this yourself.
Posted on Jul 14, 2010
My car had same problem. Got it to the mechanic, replace a selenoid for $600 (including parts and labor) never had the problem again.
Posted on Aug 18, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
engine and the automatic transmission in this vehicle are computer
controlled and in most cases when a fault occurs a fault code is
stored in the memory of the computer control module. There are
exception to this, such as the Mass Airflow Meter and fuel pressure
problems. What must be done is to have all the basic testing done
such as a scan of the system for fault codes as well as a check with
a live data scanner tool for engine functions that are not within
range of normal, a trained technician is required to know what is
correct and what isn't, then based on careful diagnostics done from
a factory repair manual the correct part is replaced or the wiring
repaired or the computer replaced (known as the PCM), which is very
rarely the problem. Other basic checks must be done as well such as
mechanical problems with the engine as well as engine state of tune
and mileage on the engine. The transmission can have mechanical
issues as well such as no gear engagement at all or a failed pump or
other pressure related problems.
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