Posted on Apr 15, 2013

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Hesitates on acceleration. hard jerk at 40mph and above

Has a hard jerk when you reach 45mph also has a hesitation on take off

1 Answer

Bogdan Odwazny

Chevrolet Master 6,171 Answers
Posted on Apr 15, 2013

Bogdan Odwazny

Chevrolet Master

Joined: Jan 20, 2013

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Could be TPS sensor [RPM] getting bad.

5 Related Answers

Anonymous

60 Answers
Posted on Aug 04, 2009

SOURCE: Hesitat when Accelerating

check your plugs and leads. do you think you may have dirty fuel?

Anonymous

66 Answers
Posted on Dec 18, 2008

SOURCE: 2007 cobalt engine hesitating during acceleration

any ck engin lights could be bad gas or spark plug or coil pack braking down

Anonymous

67 Answers
Posted on Jan 07, 2009

SOURCE: 1986 chevrolet silverado truck engine hesitates when accelarating

Along with the vacuume leaks I would check the carb. The accelerator pump might be out of adjustment or something else in the carb. Currently I have the same problem with mine and I just adjusted it and for 1 day so far it's ran fine but I have a holley on mine. Carb may be dirty also.

Anonymous

1990 Answers
Posted on Feb 01, 2009

SOURCE: motor hesitates and sputters when idleing and acceleration

Absolutely is the Problem! Please Rate My Response! Thanks!

k10aholic

11 Answers
Posted on Apr 19, 2009

SOURCE: Transmission occasionaly hesitates and I can feel it when it shifts, more than I should.

There are diagnostic tools that could help detect what your problem is. The Snap-On Modis, or preferably a "Tech-2" GM scanner. Any reputable transmission shop, or GM dealer should have at least one of the two. It sounds to me like it could be the transmissions "EPC" (Electronic Pressure Control solenoid) The EPC controls main line pressure, in an effort to keep shift firmness, and shift duration at one specific level. This is to compinsate for the natural wear a transmission encounters, and to keep emissions as low as possable, by keeping shift duration low. When the EPC malfunctions (and thats somthing that they like to do in the 4t65E), it typically starts to shift harder than normal. They typically throw a P1811 code. (P1811 is a "max adapt-long shift" code) And the malfunction can be intermittent. Hope this helps, and good luck.
Logan

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Related Questions:

0helpful

2answers

I have a mitsubishi endevor 2008 while driving about 45mph and 50mph it starts jerking, only when I aaccelerat, the oil has been changed out, we have new spark plugs on it new battery, what is it?

scan for codes

Read full answer

May 06, 2015 • Mitsubishi Cars & Trucks

0helpful

1answer

Engine ticks over but no acceleration

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

-------------

These details will help.

Thanks.

Read full answer

Feb 04, 2013 • 2007 Kia Magentis 2.0

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1answer

Chevy 2500 4x4 truck,, wont excelarate right, acts like its running out of gas, good fuel pressure, new mass air flow senser, still does it... any ideals???????

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

-------------

These details will help.

Thanks.

Read full answer

Jan 08, 2013 • 1996 Chevrolet C/K 2500

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1answer

Mazda 323 bj not exccelerating

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

-------------

These details will help.

Thanks.

Read full answer

Dec 31, 2012 • Mazda 323 Cars & Trucks

1helpful

1answer

- stumbles when stopped and accelerating at low speeds

ENGINE HESITATES WHILE ACCELERATION
LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.
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 lies: -------
Jerks and Hesitates During Acceleration?
http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html
-----------
Loss of acceleration?
http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html
---------
Headlights flickering and car hesitates to start?
http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html
--------
How exactly the Vehicles Accelerator Cable works?
http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html
-------------
How exactly Vehicles Accelerator Pump Diaphragm Works?
http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html
--------
2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?
http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html
---------
2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?
http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html
---------
Wheel hop under hard acceleration?
http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html
--------
2009 Chevy impala accelerator pedal sensor?
http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html
---------
Nissan Pathfinder stalls and bucks on Acceleration?
http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
--------
Acceleration lag problem?
http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html
-------------
These details will help.
Thanks.

Read full answer

Dec 07, 2012 • Cars & Trucks

0helpful

2answers

2008 AWD Chevrolet Equinox acceleration problem

try putting some fuel injector cleaner in the gas

Read full answer

Dec 02, 2012 • 2008 Chevrolet Equinox

3helpful

3answers

When maintaining speed of about 50mph,2004 pacifica hesitates and will cut off while in park sometimes.check engine light is not on

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

-------------

These details will help.

Thanks.

Read full answer

Nov 28, 2012 • Chrysler Pacifica Cars & Trucks

0helpful

1answer

1998 mercury cougar rx8 155000m Hi the few problems my car is having is when I first push in the pedal it has a hesitation and won't immedieatly accelerate. It'll finally **** and take off after...

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

-------------

These details will help.

Thanks.

Read full answer

Nov 28, 2012 • Cars & Trucks

0helpful

1answer

My truck is lagging when I drive.. Everthing works it just feels slower then normal.. It's a Chevy Tahoe 1999 2 door..

ENGINE HESITATES WHILE ACCELERATION

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

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 lies: -------

-----------

Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

------------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

-----------

Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

---------

Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

--------

How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

-------------

How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

--------

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

---------

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

---------

Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

--------

2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

---------

Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

--------

-------------

These details will help.

Thanks.

Read full answer

Nov 27, 2012 • Cars & Trucks

0helpful

1answer

My 2008 Equinox hesitates and jerks when accelerating beyond 45mph before running smoothly again beyond 55mph. The engine light flashes when accelerating beyond 55mph with a slight hesitation. I've...

Sorry Cleef, on dial up and lost the connection.
The reason it does this at higher speeds is that more ignition spark is needed to fire the spark plugs.
Yes, it's time for a tune up.
A shop that has a scanner can identify which cylinder is causing the misfire. It will have stored a code to do this.
I hope you find a good expert on chat. If not, message me back here and I will help you find your problem.
Again, my apologies for my poor connection.

KL

Read full answer

Jan 16, 2011 • 2008 Chevrolet Equinox

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I have a mitsubishi endevor 2008 while driving about 45mph and 50mph it starts jerking, only when I aaccelerat, the oil has been changed out, we have new spark plugs on it new battery, what is it?

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Hesitates on acceleration. hard jerk at 40mph and above

1 Answer

5 Related Answers

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Related Questions:

I have a mitsubishi endevor 2008 while driving about 45mph and 50mph it starts jerking, only when I aaccelerat, the oil has been changed out, we have new spark plugs on it new battery, what is it?

Engine ticks over but no acceleration

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

Chevy 2500 4x4 truck,, wont excelarate right, acts like its running out of gas, good fuel pressure, new mass air flow senser, still does it... any ideals???????

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

Mazda 323 bj not exccelerating

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

- stumbles when stopped and accelerating at low speeds

2008 AWD Chevrolet Equinox acceleration problem

When maintaining speed of about 50mph,2004 pacifica hesitates and will cut off while in park sometimes.check engine light is not on

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

1998 mercury cougar rx8 155000m Hi the few problems my car is having is when I first push in the pedal it has a hesitation and won't immedieatly accelerate. It'll finally **** and take off after...

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

Wheel hop under hard acceleration?

2009 Chevy impala accelerator pedal sensor?

Nissan Pathfinder stalls and bucks on Acceleration?

Acceleration lag problem?

My truck is lagging when I drive.. Everthing works it just feels slower then normal.. It's a Chevy Tahoe 1999 2 door..

Acceleration lag problem?

Jerks and Hesitates During Acceleration?

Loss of acceleration?

Headlights flickering and car hesitates to start?

How exactly the Vehicles Accelerator Cable works?

How exactly Vehicles Accelerator Pump Diaphragm Works?

2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?