Question about 2004 Ford Taurus

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Vehicle surges with out pressure on pedal., revs high in neutral, replaced over heated cat. converter, that had melted hoses and whatever else, when problem first began,

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Might look for a vacuum leak somewhere in the intake system. A vacuum leak can cause a lean air / fuel mixture, which will cause the engine to operate at a higher than normal temperature. In an extreme enough situation, this could lead to a cat "meltdown" as you have mentioned.

Can you hear a hissing sound when you have the hood up?

Posted on Jan 01, 2011


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02 s 60 p2177-po500 engine wont rev over 2000rpm ,pulled out 02 sensor made no difference?

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"high rpm no power"

More detail would help, such as what are you working on, and fuller description of symptoms. If you are saying that as the engine revs, power seems to drop off, there are many possibilities. Clogged exhaust system (think bad cat converter), or bad ignition module (they have a low speed section and a high speed section), inadequate fuel delivery, gas pedal not opening throttle all the way, or if your vehicle is "fly-by wire", bad gas pedal section.

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2004 jetta will crank and run but will not rev up acts like catalytic converter stopped up but it is not. Could it need a new from fuel filter?

Look at all data & road test

That way you see if emission monitors run

You see what the fuel trim & oxygen sensors
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Could be the cat is ruined,so then you have to
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took it out,then replace it

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What are the signs when you need to replace a catalytic converter on a hyundai sonata 2001

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Mar 28, 2013 | Hyundai Sonata Cars & Trucks

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Codes 0171 0174, 0316,0430

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2007 F350 4X4 front brakes are dragging, has produced heat high enough to melt the seals on the calipers. What can cause this issue. Brake pedal is normal, no warning lights are on, rear brakes appear to...

Well, it can be the caliper itself sticking, or it could be defective brake hoses. If it is affecting both sides equally, then it could even be a defective brake master cylinder or a malfunctioning Antilock Brake unit. To hep determine what the cause is, jack the vehicle up and make sure it is properly supported. Remove the front wheels. Get in the vehicle and start the engine. Press HARD on the brake pedal, then shut the engine off and get out and check to see if you can turn the wheel hubs by hand. If they will not move, open the brake bleeder on the caliper and see if brake fluid squirts out under pressure and see if this causes the brakes to release. If they still won't move you need to replace your calipers. If they release, then I would try replacing the rubber brake hoses to the calipers. (They can collapse internally and keep the calipers applied - you cannot see this by visual inspection.) If replacing the hoses does not make the vehicle pass the test above, then you need to have your ABS Module and your Master Cylinder tested.

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1 Answer

My catalytic converrters is getty red

Please be careful if your converter is heating up. The converter maybe malfunctioning or it could be clogged. Nevertheless, take it to a mechanic because you have rubber hosing under your hood and you do not want the heat from the converter to start melting those hoses. The hoses are designed to take high temperatures in fluids, but not high temperatures in heat. Have a mechanic check out your car ASAP.

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Starts just fine but dies at idle. will keep running when stepp[ng on gas pedal

if the car runs fine at high revs, I suggest just turning the idle revs up 150ish, it could be a block cat converter, or restricted airflow making it die. but quick fix turn revs up 150rpm will do no harm and if it dies at higher revs, take it 2 the garage to see if they can find the thing.

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1 Answer

My jeep will not accelerate when it is in gear. it does start and run good while its in park. it will sputter and seems to back fire

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