Question about 2006 Nissan Altima

1 Answer

Why is the area by the pedal so hot?

I got the catalytic converter fixed last year. It was about $1700+. I also changed the muffler and got a new one. However, after the new catalytic converter was put in, I notice that sometimes the car gets really hot around my feeet righ where the gas pedal is or the brake. It's not burning me or anything but it concerns me. Why is it like this? Any idea? Not sure if they didn't close the sensors or if they removed the metal sheet that goes between the engine and the inside of the car? Just wondering. It has gotten better since last year but I would feel safer and more secure without this happening.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert who has answered 20 or more questions within one hour.


    An expert who has answered 20 questions.

  • Contributor
  • 37 Answers

The most likely reason is when the new cat was installed, the mechanic did not reinstall the stock heat shield that protects the floor from the excessive heat of the catalytic converter. the heat shield either mounts to the floor underneath the car, about the converter, or mounts directly to the converter. Another possibility is that the heat shield was integral to the converter, and the converter that your mechanic installed was a cheap version that did not come with the required heat shield. Either way, I would suggest you try to get the problem resolved, as excessive heat from the converter could cause a whole host of issues.

Posted on Jun 30, 2014

  • Patricia Bustamante
    Patricia Bustamante Jul 01, 2014

    What kind of issues? Would it be dangerous to me while I drive the car? Please let me know. I will get it done as soon as possible. This week. tomorrow even! :-) Thank you for your suggestion.



6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017



  • 90 Answers

SOURCE: 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

Posted on Jul 14, 2008


Jackson Hisey

  • 99 Answers

SOURCE: fouled fuel injector

If that is truly what he told you then you need a second opinion. You can't foul a fuel injector. The computer won't tell you there is water in a cylinder, they aren't that good. Did he give you a print out of codes or anything? You could have some bad fuel in the tank since you said it gets worse when the fuel is low. Get a second opinion or look at your paperwork from the first guy and tell me what he really said.

Posted on Nov 28, 2008



  • 85222 Answers

SOURCE: when pressing the gas pedal the engin will make this metal clink


Posted on Feb 06, 2009


  • 5 Answers

SOURCE: engine surging , won't accelerate over 3000 rpm ! IS chocking is like is not enogh gas

Do you have a check engine light with this?
What can happen is a code has caused the engine to protect itself. For example in a low coolant situation when the engine heats up too much, the engine can Knock causing an Engine Knock fault.
If that occurs you will recieve a fault for each of these items. Fill the engine with coolant. Then reseting the code will let your engine accelerate normally.

Posted on Feb 10, 2009


  • 3640 Answers

SOURCE: check engine light on

Diagnostic code produces P0420 catalyst system efficiency below threshold-Bank 1. Probable causes are listed as follows:
1-air leak in exhaust before rear 02 sensor, 3-Fuel system fault,
4-faulty catalytic converter.

Posted on May 31, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

95 jeep grand cherokee muffler gets to hot

I have to agree with JL.. But, I would change the Cata. Converter. I belive the Cata. Convert. is old. Because, the Muffer ( New ) is hot! An I would give it an Old Fashon Tune Up. I know it do'nt it do'snt a Carb.. J.D.

Jan 29, 2013 | Jeep Grand Cherokee Cars & Trucks

2 Answers

1989 celica slow acceleration

Possibly your catalytic converter is clogging up. Short of using a thermometer to check exhaust temp's pre- and post-converter (the temp. after the converter should be about 100 degrees hotter that the temp. before the converter), the next best way is to run car with converter un-hooked and see if that is the problem.
Good luck.

Feb 17, 2012 | 1989 Toyota Celica GT

2 Answers

I have an 1998 Chevy Blazer and need to change the catalytic converter, are the flange bolts welded and can i cut them

Catalytic Converter Removal & Installation 2.2L Engine To Remove:
Catalytic converter 2.2L engine gm-03-22-734.gif

  1. Raise and safely support the vehicle.
  2. Disconnect the heated oxygen sensor (HO2S) electrical connector.
  3. Remove the exhaust manifold pipe flange mounting nuts from the catalytic converter.
  4. Remove the catalytic converter flange mounting nuts from the muffler.
  5. Remove the catalytic converter from the muffler.
  6. Remove the catalytic converter from the rear hanger bracket insulator.
  7. Remove the catalytic converter.
  8. Remove the (HO2S) from the catalytic converter.
To Install:
  1. Install the (HO2S) to the catalytic converter.
  2. Install a new gasket and the catalytic converter to the muffler.
  3. Install catalytic converter to the catalytic converter hanger.
  4. Install the catalytic converter flange mounting nuts to the muffler flange.
    • Tighten to 26 ft lbs (35 Nm).
  5. Install the catalytic converter flange mounting nuts to the exhaust manifold pipe flange.
    • Tighten to 26 ft lbs (35 Nm).
  6. Connect the heated oxygen sensor (HO2S) electrical connector.
  7. Lower the vehicle.
------ Catalytic Converter Removal & Installation 4.3L Engine To Remove:
  1. Raise and safely support the vehicle.
  2. Raise and support the transmission.
  3. Remove the transmission support
  4. Disconnect the left and right pre-converter heated oxygen sensor (HO2S) electrical connector.
  5. Disconnect the post-converter (HO2S) connector. Muffler flange and gasket gm-03-43-731.gif

  6. Remove the catalytic converter flange mounting nuts from the muffler.
  7. Remove the catalytic converter from the muffler.
  8. Remove the exhaust manifold flange mounting nuts from the catalytic converter. Catalytic converter 4.3L engine gm-03-43-735.gif

  9. Remove the catalytic converter from the support bracket insulator.
  10. Remove the catalytic converter and gaskets.
  11. Remove the heated oxygen sensor.
To Install:
  1. Install the heated oxygen sensors as needed.
  2. Install a new gasket and the Install the catalytic converter to the support bracket insulator.
  3. Install the catalytic converter to the exhaust manifold flange. Install the mounting nuts.
    • Tighten to 39 ft lbs (53 Nm).
  4. Using a new flange gasket, install the catalytic converter to the muffler. Install the mounting nuts.
    • Tighten to 30 ft lbs (40 Nm).
  5. Connect the left and right pre-converter heated oxygen sensor (HO2S) electrical connectors.
  6. Connect the post-converter (HO2S) electrical connector.
  7. Install the transmission support.
  8. Lower the transmission.
  9. Lower the vehicle.
prev.gif next.gif ---
It looks like you can cut them and replace them with new bolts and nuts.prev.gif next.gif

Sep 05, 2010 | 1998 Chevrolet Blazer

2 Answers

Loud muffler noise up front of vehical.what is

If the noise sounds like your muffler, but isn't coming from the area of your muffler, then you have an exhaust leak upstream from the muffler.

From the front of your muffler, follow the tubing forward to the catalytic converter, then forward to the engine exhaust manifold.

If you start with the car sitting for a few hours to make sure it's cold, you can use your hand to feel for blowing leaks while the engine is running, but chances are you'll be able to hear it. be careful of the catalytic converter itself, as it heats up fast, so check that first.

Once you've found the leak, the fix depends on the emissions laws in your state. If you have none, and the leak is in the middle of the pipe, you can buy pipe patchers (metal preferred) through auto parts stores or catalogs/websites. If you have strict emissions laws, or the leak is at the junction of the catalytic converter and pipe, you'll need to replace the failing part.

Jun 26, 2009 | 1993 Toyota Camry V6

1 Answer

Exhaust pipe rattles when car idles. Had muffler

Check the heat shield on the Catalytic Converter, after a few years they start to rust off and rattle. Crawl under the Pathfinder and bang along the Converter and muffler area and see where it's coming from.   Good chances are, it's from the heat shield since you already had everything changed from the Cat back.
Good luck and hope this helps.

May 11, 2009 | 2001 Nissan Pathfinder

2 Answers

We took our pick-up to the local Ford Dealership to find out why it was running so rough,especially when it was sitting still. It took 3-trips to the Ford House in one week before they could tell me...

The Ford guys you are going to are absolute morons. The engine light likely indicates misfire(s) codes. maybe catalyst inefficiency, but that would be due to the misfiring. Take it to a decent shop that has been in your area for a long time, tell them to tune it up and diagnose it properly. Ford trucks have a very common problem with bad coil packs and coil pack extensions. I can almost promise you this is your problem. Mention coil packs to the mechanic just to twig his memory and he can check his scanner for which ones are suspect.

Mar 30, 2009 | 2003 Ford F150 Regular Cab

1 Answer

My son has a 2002 GS, and from time to time the check engine light comes on and the last time they fixed one of the catalytic converter sensors and all was well. Tonight the engine starting bumping like...

Sounds like there might be something inside of your exhaust creating pressure making your pipes hot. You might need a new Catalytic Converter. Dont wait too long to check this out, because if you do need a new Catalytic converter, your exhaust Manifold MAY Melt to your Head because of the heat.

Nov 30, 2008 | Mitsubishi Eclipse Cars & Trucks

1 Answer

Muffler part

You need to read your warranty for specific exclusions! That is the only way to find out what is covered in your warranty. Even if they replaced the resonator in 05, it may be excluded in your warranty.

If they did not replace, then you will have to pay for the replacement.

Good Luck


Jul 04, 2008 | 1997 Geo Metro

Not finding what you are looking for?
2006 Nissan Altima Logo

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

85222 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides