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Troubleshooting 2004 nissan maxima se exhaust system start up is loud and a lack of power it sounds like a Catalytic Converter up front left side

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Could be but more likely the flex bit in the exhaust before the cat converter
take it to an accredited exhaust shop for a proper diagnosis and quote

Posted on May 12, 2017


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2004 Kia optima is having exhaust issues. Lack of power, beleive front catalytic converter is clogged. When running there is a huge lack of power and the front of the exhaust is glowing red hot.

You can install a test pipe in place of the converter for testing, or just disconnect ahead of the converter to test, but this will make exhaust REALLY loud. Stock converters can be expensive, but aftermarket units aren't too bad. Buy a "direct fit' unit for easy install.

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Oct 29, 2015 | 2004 Nissan Titan

1 Answer

2006 maxima se starts@idle ok but not much power 20 mpg

you may have a restricted catalytic converter plugging up exhaust flow and bogging down the engine. on the vq35 engine there are 2 precats located right under the exhaust manifold and it is then plumbed down the downpipe and into the main catalytic converter. i would remove the downpipe and inspect the the condition of the catalyst.

Oct 18, 2014 | 2006 Nissan Maxima

1 Answer

Convertor turns red enigen runs rough 2004 nissian max

Your catalytic converter is exactly what it says it is. It converts undesirable exhaust gases into acceptable ones by using a catalyst to combine the unburnt hydrocarbons with a second element. It uses the heat of your exhaust to do this. However, as the process goes on, the converter absorbs more and more impurities but expels nothing except what is left in your exhaust. This means your catalytic converter finally fills up. After 10 years, it sounds like your converter has reached the end of its life and is full. Hence exhaust gases are having trouble passing through it. It is now being overheated by the exhaust gas that cant flow freely. This is also creating back pressure in your exhaust manifold thus interfering with your engine's performance. You have to replace the catalytic converter. Probable cost about $400 to $500.

Jun 22, 2014 | 2004 Nissan Maxima

1 Answer

Whers the starter on my nissan maxima 2004 se

Assuming they used any sense at all when they built that motor it is transverse mounted and the starter is located on the front side where the transmission housing and motor come together. Unfortunately that means it is located partially below the exhaust manifold and you will have to remove most of the intake manifold to get at it.

Oct 28, 2011 | 2004 Nissan Maxima

2 Answers

Where is bank2 sensor2 on a 2000 nissan maxima

bank 2 is the side of the engine that has cylinders 2,4, and 6. that would be the front side on your car and sensor 2 is AFTER the catylitic convertor

Apr 14, 2011 | 2000 Nissan Maxima

1 Answer

2004 Nissan Maxima SE Heat only comes out when the

air trapped in system. get flush & fill from shop with evac/fill equipment

Dec 01, 2010 | 2004 Nissan Maxima

1 Answer

Tinny sound when accelerating in 2005 nissan maxima

You may have a loose heat sheild on the underbody or on the exhaust ie, muffler, catalytic converter, or pipes.

May 16, 2010 | 2005 Nissan Maxima

1 Answer

2001 Maxima SE Oxygen Sensor locations?

In the exhaust pipes before the catalytic converters. the sensors after the cats are cat monitors, they are not O2 sensors.

Dec 10, 2008 | 2000 Nissan Maxima

2 Answers

Check engine,2000 Nissan Maxima

yes there is two catalytic converters ???
one for any exhaust pipe bank (left & right) (bank 1 & bank 2 )
if you change the bank 1 ?? may be you need to change the bank 2 today?????
but not to change the same bank two time ???????

ask for more information

Jul 07, 2008 | 2000 Nissan Maxima

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