Question about 1998 Chevrolet Cavalier

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My car hesitates a nd stumbles upon acceleration

I looked under the hood and the hose connected to my fuel regulater is snapped off

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Not to be rude, but, if you already know what's broke, fix it!!! Usually, if it's just the plastic line, just slip a piece of rubber hose over it. I use fish tank air hose for this, sometimes securing both ends with thin tie-wire.

Posted on Dec 22, 2008

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What, other than plugs, wires , cap and rotor would be causing loss of power on acceleration, but not all the time,, intermittently.


There is a vacuum advance attached to the distributor. Inside the vacuum advance is a rubber diaphragm that can crack from age an no longer work. Sometimes the vacuum hose that attaches to it may not be getting proper vacuum. This device adjusts your timing when you accelerate. Improper function could cause the problems you describe. Also, a vacuum leak in any of your vacuum system could cause the problem your describing. Too much air intake on take off from a faulty vacuum system could throw off your air fuel mixture on acceleration causing hesitation until the air fuel mixture can catch up which is when the power comes back. Hope this helps.

Oct 29, 2014 | Cars & Trucks

1 Answer

Bogs down acceleration


Certainly, it points to a bad pressure regulator. Check all connections and pressures. Amclaussen.

Aug 16, 2013 | Dodge Stratus Cars & Trucks

1 Answer

- 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
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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.

Dec 07, 2012 | Cars & Trucks

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

1 Answer

Transmission vibrates hard during accleration, not in neutral, or when load is reduced or eliminated. ONLY during acceleration, or load, e.g. hill, trailer.


There can be a misfire too from the cylinders.

An engine that hesitates, stumbles or misfires when accelerating or when it is under load is an engine that is either sucking too much air, not getting enough fuel or misfiring. If the Check Engine Light comes on, you may find any of the following codes:

• P0171, P0174 Lean fuel condition codes
• P0120 to P0124 Throttle position sensor codes
• P0222 to P0229 Throttle position sensor codes
• P0400 to P0409 EGR related codes

If there are no misfire codes, a common cause of acceleration stumble is a bad throttle position sensor (TPS). The TPS tells the computer how far the throttle is open. The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture and when extra fuel is needed if the throttle suddenly opens wide.

Another common cause is dirty fuel injectors. If varnish deposits have built up in the tips of the injectors, they won’t spray as much fuel as they normally do, or will “dribble” fuel instead of spraying a fine mist. This creates a lean fuel mixture and conditions that are ripe for stumble and hesitation (also misfire). Look at short term fuel trim (STFT) and long term fuel trim (LTFT) with your scantool. If the numbers are high, it tells you the engine is running lean and the injectors need cleaning. Treat mild cases with a high quality fuel-injector cleaner additive. Severe cases require professional cleaning equipment.

Also if this sensors apply to your vehicle, camshaft sensor or crankshaft sensor if sensors bad you don't get any spark. Also run a scan on the car.

Good luck and rate this solution, please.

Apr 07, 2010 | Mitsubishi Eclipse Cars & Trucks

2 Answers

Car will not stay idle after had to get someone to unlock it because I locked the keys in the car


There can be a misfire too from the cylinders.

An engine that hesitates, stumbles or misfires when accelerating or when it is under load is an engine that is either sucking too much air, not getting enough fuel or misfiring. If the Check Engine
Light comes on, you may find any of the following codes:

• P0171, P0174 Lean fuel condition codes
• P0120 to P0124 Throttle position sensor codes
• P0222 to P0229 Throttle position sensor codes
• P0400 to P0409 EGR related codes

If there are no misfire codes, a common cause of acceleration stumble is a bad throttle position sensor (TPS). The TPS tells the computer how far the throttle is open. The computer uses this information to determine how much fuel is needed to maintain the correct air/fuel mixture and when extra fuel is needed if the throttle suddenly opens wide.

Another common cause is dirty fuel injectors. If varnish deposits have built up in the tips of the injectors, they won’t spray as much fuel as they normally do, or will “dribble” fuel instead of
spraying a fine mist. This creates a lean fuel mixture and conditions that are ripe for stumble and hesitation (also misfire). Look at short term fuel trim (STFT) and long term fuel trim (LTFT) with your
scantool. If the numbers are high, it tells you the engine is running lean and the injectors need cleaning. Treat mild cases with a high quality fuel-injector cleaner additive. Severe cases require professional cleaning equipment.

Good luck and rate this.

Mar 07, 2010 | 2004 Dodge Stratus

1 Answer

Car dies when stopping or slowing down, hesitates on acceleration


check for a vacuum leak,you could possibly hear a whistle under the hood,or you can spray starter fluid near the intake manifold where the suspect leak could be and if the engine accelerates it has an vacuum leak,try the simple things first,can also be a clogged PCV valve,it is in the valve cover somewhere and it will have a rather large rubber hose going to the intake manifold

Jan 11, 2009 | 1994 Toyota Tercel

1 Answer

2000 Ford F450 with V10 engine starts and idels fine. However it stumbles and hesitates with any acceleration. Replaced tps sensor, maf sensor, both O2 sensors, fuel pump, and both strainers. I am...


have you cleaned the throttle plate? this is done by removing air intake hose and spraying out with cleaner and wiping it down open throttle and wipe off the butterfly and bore. this will usually cure a stumble.

Aug 20, 2008 | Ford F-450 Cars & Trucks

1 Answer

1999 Nissan Maxima 6 cyl


THE ONLY WAY YOU CAN TRY IT;

Fuel filter, fuel line, vicuum hose (leak or not) spark plugs cable and some related wires.

Jul 16, 2008 | 1999 Nissan Maxima

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