Question about 2001 Toyota Corolla

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Corolla, 2001 hesitates on acceleration, hard to start sometimes, runs "lean", check engine light has been on, has 138,000 miles, I already changed fuel pump & plugs

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  • Anonymous Mar 24, 2014

    My toyota has 242+ thousand miles on it...the plugs have never been changed...Last night it started to hesitate for a few seconds, then stopped...it also done it this am. NO check engine light came on. My thoughts are..plugs/wires; distributor; or fuel pump. I know the plugs would make the engine light come on, but would a failing distributor or failing fuel pump cause the light to come on??

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Did you get the car on computer to see what our check engine light i seen problem with temperature sensor the temperature sensor if it defect let say in morning its colder like 60 degre 15 celcius but the sensor is reading 80 degre the computer will not give the same anough of gas hard start not enough gas hesitation hope it FIXYA our problem thanks pierre

Posted on Jul 04, 2008

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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: -------

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

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

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How exactly Vehicles Accelerator Pump Diaphragm Works?

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

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Wheel hop under hard acceleration?

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

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2009 Chevy impala accelerator pedal sensor?

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

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Nissan Pathfinder stalls and bucks on Acceleration?

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These details will help.

Thanks.

Nov 28, 2012 | Chrysler Pacifica Cars & Trucks

1 Answer

My 1991 Toyota Corolla drives fine and then suddenly it starts to hesitate.


mine did the same thing and it was oxygen sensor
since engine light came on there should be an error code
on computer.Get a diagnostic checker or take to a garage and have them hook uo to the diag connector. I bought a diagnostic checker few years ago and it has come in very handy
sure hope this helps!!

Jun 22, 2012 | 1991 Toyota Corolla

1 Answer

Hesitation in acceleration with no check engine light


MOST TIME CAR STUMBLE OR HESITATION ON ACCELERATION YOU.HAVE A SLIGHT LEAN FUEL MIXTURE.CAUSED BY STOPPED UP FUEL INJECTORS OR FUEL FILTER SLIGHTLY PLUGGED.

Jun 07, 2010 | 2001 Audi A4

4 Answers

2009 toyota corolla hesitates when accelerating. when acceleration in normal speeds, there is a delay of about 4-5 seconds in hesitating during acceleration. no engine lights are on at all. has about...


If you own a 2004, 2005, 2006 or 2007 Toyota Corolla and your car hesitates when you accelerate or it hesitates when driving, you should try the solution described here. Below is a list of the behavior your car may show that tells that you should try this procedure before going to a mechanic or repair shop.
  • The accelerator is slightly pressed while the car is running and it slightly jitters or hesitates
  • After completely stopping the car (a red light for example), it hesitates when you accelerate to continue driving
  • Engine power is below the usual level
  • Sometimes check engine light turns on
You should know that while those problems can be caused by several issues, including low quality or altered fuel or even a loosely tighten fuel cap, the most common cause is a dirty MAF flow meter sensor.
The MAF sensor (Mass Air Flow Meter Sensor) is in charge of detecting how much air (in mass, not volume) is coming in to the engine, so the ecm computer can calculate the amount of fuel to be injected.
Some times this sensor gets contaminated by lots of microscopic debris that scape the air filter and accumulate on its sensing parts over time. The resulting effect is that the MAF flow meter sensor gets less "sensible" and detects less air than it is currently entering the engine. The reaction of the ecm computer will be to inject less fuel to keep the air fuel balance, taking as reference the false reading of the MAF flow meter sensor. This will produce a too-lean mixture, which is responsible of the hesitation, the loss in power and the check engine light.
If your car engine, besides the hesitation, is also producing knocking or engine pinging at high loads, like when going up through a hill, it is attributed to this too-lean condition.
Before going to an auto parts store or to a mechanic to fix the problem, you should try fixing it your self. If the problem is a dirty MAF flow meter sensor, the solution is to clean it, plain and simple. That may save you some money that a mechanic will charge for cleaning it (you could do the same) or for replacing the part when most of the times it is not damaged, just dirty or contaminated

Apr 06, 2010 | 2009 Toyota Corolla

1 Answer

Hesitation while accelerating


air leak at air duct to throttle body.

Jun 12, 2009 | 2001 Kia Spectra

3 Answers

2001 Toyota corolla hesitates on acceleration


Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust).

Mar 27, 2009 | 2001 Toyota Corolla

2 Answers

OIl pressure light flickers


change the oil pressure switch or the wrong oil

Jan 18, 2009 | 2001 Chrysler Concorde

3 Answers

Check engine light on a 2001 Toyota Corolla


No need to replace the MAF. If it was bad, the check engine light would have come right back on as soon as you started the engine. The MAF not only measures the air going into the engine, but also measures the air temperature. Those 2 circuits are constantly sending info the the ECU. If either would fail, the ECU would light the check engine light. P0171 is a common code for incorrect readings (dirty) in the MAF. Cleaning it always helps, and cuts off the light. Your acceleration problem may be either a wrong Air-Fuel sensor (the one before the cat), or an "aftermarket" AF sensor. "Aftermarket" AF sensors have been shown to not work properly in Toyota vehicles. Hope this helps

Sep 27, 2008 | 2001 Toyota Corolla

2 Answers

1991 toyota corolla gts, acceleration hesitaion


it could could be the coolant temp sensor.

Sep 20, 2008 | 1991 Toyota Corolla

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