Sometimes, A bad knock sensor will cause an engine hesitation when pressing the gas pedal.
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: ------- ----------- http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html --------- http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html -------- http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html -------------
http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html -------- http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html --------- http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html --------- http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html -------- http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html --------- http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html -------- http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html ------------- These details will help. Thanks.
Jerks and Hesitates During Acceleration?
http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html
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?
Could be clogged fuel filter,fuel pump failing.faulty tps sensor.fuel injectors need cleaning or could have bad fuel injector.
SOURCE: Check Engine Light
If the light isn't flashing, it is safe to drive. If it is flashing, then catalytic converter damage can result. Have a parts store check the codes for you and come back and post the code.
SOURCE: 2004 Chrsyler Pacifica Won't Start
2 possible problem come to mind:
I hope this helps with your problem and wish you the best of luck. Take care!
Greg
SOURCE: 2004 subaru forester, 99,000 miles. Check engine
Drop in to an Autozone, or Pep Boys, or similar big parts store & they will usually scan for codes free. This will hopefully eliminate all the guess work, or at least point everyone in right direction for better diagnosis. If not obvious from codes what the problem is, get back to us and we'll help you out.
Testimonial: "Thanks for the great suggestion . I'll have Autozone read the codes on Monday. Thanks again!"
SOURCE: 2004 chrysler pacifica check engine light code
The codes are both evap system codes. The only good way to find the leaks is to take it to a shop that has a smoke machine. They will pump smoke into the evap system to find the leak.
SOURCE: 2002 Vw Beetle Sport 1.8l
That is likely a bad crankshaft position sensor. That provides a signal from the crank sensor to the distributor/coil or coil pack and ignition module depending on which one you have.
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