Rpm fluctuation Idles fine runs fine untill 1500 rpm then jerks stumbles run bad until I get to 3200 rpm then takes off and is fine switch gears and same thing in that rpm range has new plugs,wires coil pack

Question 1

0helpful

1answer

I have an 04 honda cbr f4i and when i first crank the bike it idles fine. i take off down the road and then bike starts cutting out until i get above 6500 rmp whats causing this please help me

the problem indicates a voltage problem to the ignition system
possible problem in the charge circuit or voltage regulator / loose wires or bad ground
Why I say this .--at idle the ignition system is stable as the increase the voltage to the ignition fluctuates causing the misfiring until you reach a point where the fluctuations are smoothed out buy the rpm
I would not suggest a fuel problem as it runs at high rpm which indicates that the fuel system is working

May 23, 2018 • Honda Cars & Trucks

0helpful

1answer

I have a 1995 toyota tacoma big 4 cyl it starts fine idles fine I go to take off In 1st and is ok until I get to 1500 rpm then spits and sputters untill 3500 rpm then takes off and is fine until I switch...

Check Fuel Pump Pressure/Fuel Filter. Also Check Crankshaft/Camshaft Senors. Hope this is of help

Nov 10, 2013 • 2001 Toyota Tacoma

0helpful

1answer

2002 escape 3.0 idle fluctuates and misfires when driving

No such thing as a tune-up

All you did was replace spark plugs which should be
done every 3 years

Oxygen Sensors get replaced at 100,000 miles which you
also did

You most likely have an intake gasket leak,smoke test
the entire Evap System & Engine

You also are have bad igniton coils

Jan 18, 2013 • 2002 Ford Escape

0helpful

1answer

Diag code P0339

P0339 is Crankshaft Position Sensor A CKT Intermittent
P0335 is Crankshaft Position Sensor A CKT Malfunction

Feb 27, 2012 • 2005 Dodge Ram 1500

0helpful

1answer

1991 Dakota 2.5L 4cyl starts easily, idles well, runs smoothly. When restarted truck runs well going up through the gears but bogs down, loses rpm (does not stall), won't accelerate until accelerator pedal...

sounds like a fuel filter(cheap and easy) or a partial melted catalyic converter(expensive)

May 02, 2011 • 1991 Dodge Dakota

0helpful

1answer

Yesterday i parked my car after a short drive. 3 hours later I start it and it began jerking and cutting off. The RPM and oil needle fluctuates. To keep it running I had to rev the engine and when i...

Sounds like a worn out camshaft position sensor.

May 21, 2010 • 2002 Chevrolet Monte Carlo

1helpful

1answer

My 2005 Ram 1500 4.7 started running bad the other day after the engine light came on a few hours earlier. I have replaced the cam sensor and the throttle position sensor. It ran 200+ miles fine and then...

all engines have a rev limiter in them to keep from revving the engine too high,they all cut out about 1900 to 2000rpms.

Jan 08, 2010 • 2005 Dodge Ram 1500

0helpful

1answer

Hesitates at wide open throttle

Could be as simple as new wires. Try turning on the truck at night and check to see if your wires are not arching to the engine block/manifold. Trust me if the wires are bad you'll see it at night. If they are, they need to be replaced along with the spark plugs as this will foul the plugs because of impropper detonation.

Nov 06, 2009 • Chevrolet C1500 Cars & Trucks

1helpful

1answer

Rough idle then stalls

Vacume leak or bad idle motor. With the car in park and running with the hood open listen for leaks moving your hand around the different hoses looking for a change in the sounds that you hear. The idel motor also makes the car idel up to 1500 RPM or so right at start-up then idel down, If it doesn;t the idel motor is likly. Check engine light is on when running? Test for codes, Follow code test charts don't skip any steps!.

Nov 02, 2009 • 1998 Chevrolet Malibu

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1answer

IDLES HIGH RPM(3200)

sounds like the tps is bad or idle control motor

Feb 13, 2009 • 1996 Mazda MX-6

Question 2

James Billet

Expert 272 Answers
Posted on Nov 10, 2013

James Billet

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Joined: Jun 24, 2013

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Plz Check Camshaft And Crankshaft Position Sensors

Greg logsdon Nov 11, 2013

do you think it could be a throttle position sensor alot cheaper part to try first and also do you know if there is a way to check or test the cam and crank sensors Thanks in advance

×

Answer 2 · 1/2/2009 12:00:00 AM

Anonymous

1861 Answers
Posted on Jan 02, 2009

SOURCE: 99 4runner po302 code

Yes. No clicking indicates a bad injector; you mentioned you had a Noid light; does it pulse?

If you remove the plenum to replace the injector, buy new plenum gaskets. You should not reuse them.

The graciousness of a FixYa rating for my assistance would be appreciated.

Anonymous

141 Answers
Posted on Jan 17, 2009

SOURCE: bad stumble on acceleration pops through t- body.

Sounds like the fuel pressure regulator. Could also be that the timing jumped. But I'm leaning towards the pressure regulator. Hope that I could help. Best wishes.

Anonymous

15 Answers
Posted on Jul 12, 2009

SOURCE: 97' 4runner (4cyl) stumbles (misses) under load

Factory plugs are not always the best tool for the application. In your case, you use the vehicle for something that would be deemed as heavier usage as per your question. What you need is to contact your local dealer or Auto parts store for platinum tip or double platinum tip plugs for a greater spark, o r you could replace with the recommended pluga and regap them for a greater spark...

ROBERT GARCIA

926 Answers
Posted on Jul 21, 2009

SOURCE: 94 toyota camry running really rough

1st to do,replace fuel and air filter, spark plugs.

Anonymous

118 Answers
Posted on Sep 24, 2009

SOURCE: 1990 Toyota Pickup

carb or Fuel injected try cleaning either one of these bad distributor cap or rotor or distributor good luck

Answer 3 · 1/2/2009 12:00:00 AM

Anonymous

1861 Answers
Posted on Jan 02, 2009

SOURCE: 99 4runner po302 code

Yes. No clicking indicates a bad injector; you mentioned you had a Noid light; does it pulse?

If you remove the plenum to replace the injector, buy new plenum gaskets. You should not reuse them.

The graciousness of a FixYa rating for my assistance would be appreciated.

Answer 4 · 1/17/2009 12:00:00 AM

Anonymous

141 Answers
Posted on Jan 17, 2009

SOURCE: bad stumble on acceleration pops through t- body.

Sounds like the fuel pressure regulator. Could also be that the timing jumped. But I'm leaning towards the pressure regulator. Hope that I could help. Best wishes.

Answer 5 · 7/12/2009 12:00:00 AM

Anonymous

15 Answers
Posted on Jul 12, 2009

SOURCE: 97' 4runner (4cyl) stumbles (misses) under load

Factory plugs are not always the best tool for the application. In your case, you use the vehicle for something that would be deemed as heavier usage as per your question. What you need is to contact your local dealer or Auto parts store for platinum tip or double platinum tip plugs for a greater spark, o r you could replace with the recommended pluga and regap them for a greater spark...

Answer 6 · 7/21/2009 12:00:00 AM

ROBERT GARCIA

926 Answers
Posted on Jul 21, 2009

SOURCE: 94 toyota camry running really rough

1st to do,replace fuel and air filter, spark plugs.

Answer 7 · 9/24/2009 12:00:00 AM

Anonymous

118 Answers
Posted on Sep 24, 2009

SOURCE: 1990 Toyota Pickup

carb or Fuel injected try cleaning either one of these bad distributor cap or rotor or distributor good luck

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Rpm fluctuation Idles fine runs fine untill 1500 rpm then jerks stumbles run bad until I get to 3200 rpm then takes off and is fine switch gears and same thing in that rpm range has new plugs,wires coil pack

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I have an 04 honda cbr f4i and when i first crank the bike it idles fine. i take off down the road and then bike starts cutting out until i get above 6500 rmp whats causing this please help me

I have a 1995 toyota tacoma big 4 cyl it starts fine idles fine I go to take off In 1st and is ok until I get to 1500 rpm then spits and sputters untill 3500 rpm then takes off and is fine until I switch...

2002 escape 3.0 idle fluctuates and misfires when driving

Diag code P0339

1991 Dakota 2.5L 4cyl starts easily, idles well, runs smoothly. When restarted truck runs well going up through the gears but bogs down, loses rpm (does not stall), won't accelerate until accelerator pedal...

Yesterday i parked my car after a short drive. 3 hours later I start it and it began jerking and cutting off. The RPM and oil needle fluctuates. To keep it running I had to rev the engine and when i...

My 2005 Ram 1500 4.7 started running bad the other day after the engine light came on a few hours earlier. I have replaced the cam sensor and the throttle position sensor. It ran 200+ miles fine and then...

Hesitates at wide open throttle

Rough idle then stalls

IDLES HIGH RPM(3200)

Not finding what you are looking for?

1995 Tacoma

I have an 04 honda cbr f4i and when i first crank the bike it idles fine. i take off down the road and then bike starts cutting out until i get above 6500 rmp whats causing this please help me

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Rpm fluctuation Idles fine runs fine untill 1500 rpm then jerks stumbles run bad until I get to 3200 rpm then takes off and is fine switch gears and same thing in that rpm range has new plugs,wires coil pack

1 Answer

James Billet

5 Related Answers

Anonymous

Anonymous

Anonymous

ROBERT GARCIA

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

I have an 04 honda cbr f4i and when i first crank the bike it idles fine. i take off down the road and then bike starts cutting out until i get above 6500 rmp whats causing this please help me

I have a 1995 toyota tacoma big 4 cyl it starts fine idles fine I go to take off In 1st and is ok until I get to 1500 rpm then spits and sputters untill 3500 rpm then takes off and is fine until I switch...

2002 escape 3.0 idle fluctuates and misfires when driving

Diag code P0339

1991 Dakota 2.5L 4cyl starts easily, idles well, runs smoothly. When restarted truck runs well going up through the gears but bogs down, loses rpm (does not stall), won't accelerate until accelerator pedal...

Yesterday i parked my car after a short drive. 3 hours later I start it and it began jerking and cutting off. The RPM and oil needle fluctuates. To keep it running I had to rev the engine and when i...

My 2005 Ram 1500 4.7 started running bad the other day after the engine light came on a few hours earlier. I have replaced the cam sensor and the throttle position sensor. It ran 200+ miles fine and then...

Hesitates at wide open throttle

Rough idle then stalls

IDLES HIGH RPM(3200)

Not finding what you are looking for?

1995 Tacoma

I have an 04 honda cbr f4i and when i first crank the bike it idles fine. i take off down the road and then bike starts cutting out until i get above 6500 rmp whats causing this please help me

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