2000 Impala LS, 3800 engine has been 'missing' (intermittently losing acceleration in quick succession) when temp is at or over half way to 'hot' on temp gauge. That's usually after about 30 minutes on the road. That began when I had new AC unit installed at 126,000 miles (now 130,000). The AC on or off appears to make no difference. Today the 'check engine' light came on for first time. The code was PO742 Torque Converter ckt stuck on. Has anyone had past experience with this problem?

Question 1

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1answer

Have a 2000 impala about half thardle it start braking up

Check the distributor cap for a crack running vertically. If it has a crack, and you accelerate the cap spreads open and loses timing and sputters.

Mar 02, 2015 • 2000 Chevrolet Impala

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3800 series2 flutters, missfires with powerloss when acceleration is apllied but idles fine,surges when warm and seems to run normal when very light on throttle. eventually gains and maintains highway

Have the intake gaskets been replaced? you could be getting a little coolant in the cylinder. these are a SUPER common problem on 3.8 series 2 engines

Mar 31, 2014 • 2000 Chevrolet Impala

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My heater is not working except on one side in my 2007 impala driver side it blows warm passenger cold

To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html------------Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
---------Car heater blowing warm, but not hot air? http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html-------- Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem? http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html---------

This will help.Thanks.

Feb 27, 2012 • 2007 Chevrolet Impala LS Sedan New Cars

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2001 impala 3800 engine has intermittent engine code P0301 and has a engine miss at idle and driving

this indicates that there is a problem with cylinder #1 that is causing the miss fire and needs to be checked out.it could be a spark plug,poor compression,bad fuel injector,dirty injector,bad plug wire,poor ignition coil for that cylinder.just some things to check out.

Jun 29, 2011 • Chevrolet Impala Cars & Trucks

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2answers

Firing order for plugs and wires....on a v6 3800 2000 impala

For the 2000 Chevrolet Impala 3.8L V6:

Firing Order:
1-6-5-4-3-2

Cylinders:
.....(back).....
|...2...4...6...|
___________
|...1...3...5...|
.....(front)

Ignition Coil Connections:
(back)
o <---6
___
o <---3
o <---2
___
o <---5
o <---4
___
o <---1
(front)

Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

Apr 18, 2010 • 2000 Chevrolet Impala

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'02 impala ls 3.8L. lose all acceleration, at heavy acceleration and/or 4000rpms. then sputters and chugs.

I had the same on my 3.8L 2002 Impala. Right arround 3500-4000rpms with moderate to high acceleration; shaking and bucking. With light acceleration, it seemed OK. And no "check engine" light.
It was the MAF sensor. I ended up replacing it, but it was pretty expensive $150+?
You might try cleaning yours first with MAF spray cleaner.

It is located on the throttle body under the engine cover.
Here is picture of it: http://i2.photobucket.com/albums/y48/ZeeVert/2002%20Impala/ac%20condensor/MAFsensorcopy.jpg
I was working on the a/c so some other parts were removed.

Apr 01, 2010 • 2002 Chevrolet Impala

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2answers

My 2000 chevy impala shakes while driving.i let

It sounds like you might need to replace your motor mounts, or get a tier allignement done. The allignment you cannot do yourself but the motor mounts you can this requires you to place a jack under you engine and undoing the motor mounts then replace them and take away jack.

Jan 30, 2010 • 2000 Chevrolet Impala

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1answer

3 symptoms in random! one Car ! 2000 Impala 3800 1.starts then dies in a second. 2. starts good then idling and accelerating good for several minutes, then dies. 3. starts rough idling and very rough...

First thing I'd check is fuel pressure. 55psi

Dec 12, 2009 • 2000 Chevrolet Impala

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2000 chevy impala LS, between 40-60 tachometer bounces hard and shakes the car

crankshaft bearing problem

Oct 26, 2009 • 2000 Chevrolet Impala

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Acceleration advances by itself on my 2000 3800 series impala also the check engine light came on.

have that checked by a shop,ASAP..... that can be dangerous. the CK ENG light can lead to the underlying problem.

Oct 11, 2009 • 2003 Chevrolet Impala

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You sure its missing and not a torque converter shudder . as a auto tech some times its hard for me to tell the difference. it it was missing it would throw a miss fire code not a torque converter code at 126 k sounds the the trans needs to come out and a good tech needs to rebuild it

Answer 2 · 1/18/2009 12:00:00 AM

Anonymous

1 Answer
Posted on Jan 18, 2009

SOURCE: Chevy impala diagnostic code PO742

i have the same problem, what can i do to fix it?

Answer 3 · 1/18/2009 12:00:00 AM

Anonymous

1 Answer
Posted on Jan 18, 2009

SOURCE: Chevy impala diagnostic code PO742

i have the same problem, what can i do to fix it?

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Have a 2000 impala about half thardle it start braking up

3800 series2 flutters, missfires with powerloss when acceleration is apllied but idles fine,surges when warm and seems to run normal when very light on throttle. eventually gains and maintains highway

My heater is not working except on one side in my 2007 impala driver side it blows warm passenger cold

2001 impala 3800 engine has intermittent engine code P0301 and has a engine miss at idle and driving

Firing order for plugs and wires....on a v6 3800 2000 impala

'02 impala ls 3.8L. lose all acceleration, at heavy acceleration and/or 4000rpms. then sputters and chugs.

My 2000 chevy impala shakes while driving.i let

3 symptoms in random! one Car ! 2000 Impala 3800 1.starts then dies in a second. 2. starts good then idling and accelerating good for several minutes, then dies. 3. starts rough idling and very rough...

2000 chevy impala LS, between 40-60 tachometer bounces hard and shakes the car

Acceleration advances by itself on my 2000 3800 series impala also the check engine light came on.

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2000 Impala

Have a 2000 impala about half thardle it start braking up

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Related Questions:

Have a 2000 impala about half thardle it start braking up

3800 series2 flutters, missfires with powerloss when acceleration is apllied but idles fine,surges when warm and seems to run normal when very light on throttle. eventually gains and maintains highway

My heater is not working except on one side in my 2007 impala driver side it blows warm passenger cold

2001 impala 3800 engine has intermittent engine code P0301 and has a engine miss at idle and driving

Firing order for plugs and wires....on a v6 3800 2000 impala

'02 impala ls 3.8L. lose all acceleration, at heavy acceleration and/or 4000rpms. then sputters and chugs.

My 2000 chevy impala shakes while driving.i let

3 symptoms in random! one Car ! 2000 Impala 3800 1.starts then dies in a second. 2. starts good then idling and accelerating good for several minutes, then dies. 3. starts rough idling and very rough...

2000 chevy impala LS, between 40-60 tachometer bounces hard and shakes the car

Acceleration advances by itself on my 2000 3800 series impala also the check engine light came on.

Not finding what you are looking for?

2000 Impala

Have a 2000 impala about half thardle it start braking up

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