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Pressing the acelerator no engine response, then comes good

Sometimes when pressing the accelerator nothing happens, the engine continues to idle, very intermittent might not happen for days. have cleaned connectors, maf , egr, checked all hoses ect

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  • Cars & Trucks Master
  • 2,044 Answers

Did you check the TPS? Throttle Position Sensor.

Posted on Feb 13, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 21 Answers

SOURCE: 2002 Mercury Sable-shakes with acceleration

You describe this as an acceleration problem however, if the car does throw a check engine light it should be recorded in system memory so it can be pulled by scanning with and OBDII scanner. It sounds as if the car is being starved for fuel on acceleration. Check the fuel lines for kinks as well as check the fuel pressure. The problem could be a faulty fuel pump that has yet to completely die.

Posted on May 21, 2009

outdoorsman5
  • 631 Answers

SOURCE: Help 95 ford contour obd-1 error 335

I was reading in one of my repair manuals and it says in there that there could be a block where the exhaust gas pressure sensor is. There could be a blocked inlet hose. Or it could be the ECM.

Posted on Sep 11, 2009

  • 1146 Answers

SOURCE: 1994 honda civic 1.5 16v stalling after pressing accelerator from idle

Another place to look is your IAC, or Idle air control valve. It is bolted to the back of the intake manifold, and can be removed and cleaned. It is usually the cause of most Honda Idle problems.

Posted on Apr 18, 2010

  • 2 Answers

SOURCE: starts sometimes wont idle or accelerate

try checking your egr valve pressure sensor i have a 96 eddie bauer explorer and had the same problem and only showed me a code for a oxygen sensor malfuntion and replaced both and it cured it

Posted on Sep 06, 2010

  • 137 Answers

SOURCE: 1995 dodge stratus stalls at stops and wont idle sometimes.check engine light not coming on

It might be the throttle positioning sensor or and idle control setting. I suspect the former as the problem. Get a repair manual to locate the sensor and replace it.

Posted on Sep 18, 2012

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Pajero sometimes do not respond to accelerator,and then gives reasonable response to the pressure exerted on excelerator in next 2 min whats the problem?why engine suspend its respond to accelerator


Check contact box and also clean all moving parts. May have moisture too. Spray small amount of WD40 around everything. Use nothing else. WD40 disperses moisture, cleans and lubricates.

Jul 11, 2016 | Cars & Trucks

1 Answer

Truck idles fine press acelerator and it does nothing reduced engine power is on and also eng light


you need to read the codes. go to a parts store they will read them for free. if its a 4.8 5.3 or a 6.0 chev its probably the throttle acuator misfunctioning. this happens all the time

Mar 12, 2013 | Chevrolet TrailBlazer Cars & Trucks

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My outlander stops working when I stop (stalling) and when in parking its acelerates by itself


Hi there!

I think you have a problem with the Idle Air Control valve. which is located on your Throttle body,And thats what you usually happens when that sensor fails. Good luck

Jun 30, 2011 | 2003 Mitsubishi Outlander

2 Answers

I have a Jetta TDI 1993 Model and I have a problem, while driving the I get no response from the accelerator pedal, the car seems to idle but there is no accelerating power. If turn the engine off and on...


Go back to that VW dealer and complain. I'm sure you payed plenty, and I know in my shop, if a customer's car is not repaired to their satisfaction, I want to know, and make it right. Sometimes parts can be bad right out of the box, and sometimes problems are misdiagnosed. Go back, but don't agree to pay for anything untill you get a satisfactory explanation. Good luck.

May 12, 2011 | 1993 Volkswagen Jetta

1 Answer

2000 jaguar XJR. pressing accelerator - nothing happens -


if its a v8 its gonna be your throttle body its a complete assembly and is a common problem on these models

Apr 11, 2017 | 2001 Jaguar XJ8

1 Answer

Hyundai i30 Diesel automatic won't accelerate above idle at light


DOES THE ENGINE MIL WARNING LIGHT COME ON? WITH OUT MORE INFO YOU NEED TO CHECK MOTOR ON A CODE READER FOR STORED FAULTS, CHECK ALL AIR LINES TO EMMISION CONTROL, , SOUNDS LIKE YOU HAVE GONE INTO SAFE MODE, A SPLIT OR LEAKING PIPE ON THE INTERCOOLER IS A COMON FAULT ON THESE, IF YOU SWITCH ENGINE OF AND BACK ON QUICKLY WITH MOTOR RUNNING WITH OUT STALLING MOTOR AND IT CLEARS THEN IT IS PROBERLY THE SAFE MODE CUTING IN MEANING A FAULT HAS BEEN SEEN BY PCM

Dec 07, 2009 | 2008 Hyundai Elantra

2 Answers

Check Engine Light & Dashboard Reads Reduced Engine Power


The reduced engine power happens because there is a problem with the electronic throttle control . Some people call it drive by wire ! The gas pedal has sensors inside , position sensors , connected electrical to the PCM - engine computer , the throttle body on the engine has a DC electric motor an also has position sensors . These are also connected to the PCM electrical . The PCM reads the position sensors which indicate how much your pressing on the gas pedal . then hopefully it opens the throttle the same amout .

The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
• Accelerator pedal position sensing
• Throttle positioning to meet driver and engine demands
• Throttle position sensing
• Internal diagnostics
• Cruise control functions
• Manage TAC electrical power consumption
The TAC system includes the following components:
• The accelerator pedal position (APP) sensors
• The throttle body assembly
• The engine control module (ECM)

Reduced Engine Power Mode
When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control, however, the vehicle acceleration is limited.
• Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control, however, the maximum throttle opening is limited.
• Throttle default mode--The ECM will turn OFF the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The ECM will perform the following actions:
- Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned OFF
- Ignore the accelerator pedal input
• Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.

GM Electronic Throttle Body Circuit Descriptions And Testing Tips

Tons of videos on youtube for these systems , there can be a variety problems , from wiring , worn out sensors , the DC motor , computer etc....

Jun 20, 2017 | 2007 Chevrolet Uplander

2 Answers

The check engine light illuminates, DIC indicates reduced engine power, vehicle idles roughly and vehicle acceleration is slow


HI...
THis problem is caused for
Lost of correlation between ACELERATOR PEDAL POSITION
AND THROTTLE ACTUATOR MOTOR.
Because your car has no acelerator cable.
The morer probable is the Trhottle actuator motor come damaged. 90%. 10% the accelerator pedal position.
If you turn of the car it will work OK> for a few time.
But the Service engine soon. will stay on.
Yuo can go to at ANy ADVANCE AUTOPART, AUTOZONE or NAPA AUTOPART. They make a diagnostic free.
If not. I recomend get the car scanned for see exactly why the light come on. and make the right repair procedure.

OK>> I hope this help on your question...

Thank you for use fixya.

Jul 25, 2008 | 2004 Chevrolet Silverado 1500 Crew Cab

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