Question about Chevrolet Impala
Here are some additional suggestions:
1. open hood - locate MAS (mass airflow sensor) - with engine idling, tap on it with a screwdriver handle or a wrench. If the car hesitates, stalls or dies, replace it.
2. Whinning - check tranny fluid first - if full, good but it may need changed (if not already) I recommend adding a court of Lucas Oil to it in replacement of regular fluid (do this for your oil as well). Also, if the whinning is comming from your tranny, don't drive the car anymore. Pull the tranny and replace the torque converter and seal. If it still does this replace the drive axles and seals on the tranny that they slide into.
3. If you suspect the CAT is plugged (if so, won't necessary glow when overheated, as the plug may not be that bad yet), start the car and lightly tap on the cat with your foot or with a long object such as a broom handle. If the car stalls, or the idle changes, it may be a good idea to change it as well as the O2 sensors (oxygen sensors) if you haven't already. On this car there may be two - first one should be located just behind the engine on the exhaust manifold. (If standard V6 placement: piston fron and back, not side to side). The second will be located just before the CAT.
Also, as a precaution and safe measure - and before all or any of the above - (especially for tranny) ensure that all vacuum lines are connected and in good repair. One loose or leaky line will make all the difference, especially in drivetrain power.
Please let me know if you need any further assistance.
Guru, Premium Expert @Fixya.com
Posted on Apr 25, 2010
Your solutions are correct: a.) torque converter is bad b,) transmission needs to be serviced c.) fuel pump d.) catalytic converter clogged
You can rule out the CAT converter since it was not red hot after driving it seven miles. I would first check the wheel bearings and see if that is causing the whining sound. If your wheel bearings are good then the next thing to do is check the power steering fluid level. If your power steering fluid is low it would make a whining sound. If that is ok then the last thing to change is the automatic transmission filter kit and ATF fluid. Look for metal filings in the pan after you remove it. If you have alot of metal filings then your transmission will need to be rebuilt. I owned a Buick Park Ave that would not go into reverse and I used the Trans X additive and it gave me another 1000 miles before the transmission finally gave out.
Posted on Apr 25, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 06, 2017 | 2000 Volkswagen Beetle
ENGINE HESITATES WHILE ACCELERATION
LOSS OF ACCELERATION
can be fuel pressure issue or it's the problem with accelerator pedal or its
clogged filters causing there.
are many other possibilities. I suggest you to go through the list of help
links mentioned below, these will help you to confirm where the actual fault
These details will help.
Nov 28, 2012 | 1999 Mercury Cougar
How exactly Vehicles Accelerator Pump Diaphragm Works? http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html
----------accelerator pedal sensor? http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html
----------stalls and bucks on Acceleration? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
---------Engine accelerates when brake is applied? http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html
-----------This will help.Thanks.
Feb 26, 2012 | 1993 Chevrolet Lumina
acceleration problem, the help links are provided below, click the link below
to go through its procedure: ----
Engine accelerates when brake is applied? http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html ---------- Loss of acceleration?
How exactly the Vehicles Accelerator Cable works?
How exactly Vehicles Accelerator Pump Diaphragm Works?
accelerator pedal sensor?
stalls and bucks on Acceleration?
Acceleration lag problem?
Car loses power while acceleration?
This will help.
Feb 06, 2012 | 2004 Kia Sedona
Jun 18, 2011 | 2002 Subaru Forester
May 14, 2011 | 2002 Chevrolet Impala
Jan 04, 2010 | 2000 Volkswagen Beetle
Sep 17, 2009 | 2003 Chevrolet Impala
Sep 13, 2009 | 1998 Lexus Gs 400
1,001 people viewed this question
Usually answered in minutes!