Cars & Trucks Logo
Anonymous Posted on Oct 29, 2009

Catalytic convertors melt down and come apart have you ever heard of this due to a lean condition from the fuel pump = shop is stating that the pump gets hot runs lean and then the convertors melt down come apart and convertor material gets into the engine causing extensive internal engine damage. this is the second time that the convertors have done this and no fuel pump was installed on the first failure that happened about 1 and 1/2 years ago

2 Answers

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 85 Answers
  • Posted on Oct 29, 2009
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

Joined: Oct 11, 2009
Answers
85
Questions
0
Helped
34724
Points
285

I don't see that happening because exhaust gases are forced away from the engine and that would cause the converter pieces to flow out of the tail pipe not only that but catalytic converters don't get problems from engine running lean it happens from running rich causing excess fuel to burn in the converter and melt it

Testimonial: "this was very helpful but the shop is insisting that Nissan "

  • Anonymous Oct 29, 2009

    take it to a different Nissan shop don't tell them what you have been told already from anyone see if they come up with something different also if the fuel pump was the cause of the first problem why was it not replace...was it under warranty if so file a complaint with Nissan (not the dealer) and see what they can do.... also see if there has been any recalls on your truck......... Remember Knowledge Is Power

×

mwarej123

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.

  • Master 454 Answers
  • Posted on Nov 25, 2009
mwarej123
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.

Joined: Jun 25, 2009
Answers
454
Questions
1
Helped
180264
Points
1400

This is a known issue on Titans. The primary cats fail, and as odd as it sounds, yes debris gets drawn back to the engine causing damage.

Should be covered under the federally mandated 80,000 mile emissions warranty. Tell the dealer that. If they don't understand, tell them you are notifying the BBB and go to another dealer.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
2answers

92 ford e150 it has a rough erratic idle, sputtering/ticking/chugging noise on acceleration and now a ticking noise that seems to be coming from the EGR valve, but I just replaced it,throwing no codes

You have thrown a lot of parts into this and it looks like an internal engine parts issue. You need to have a cylinder leak down test run on it. Sounds like a valve issue.
0helpful
1answer

Missing then no power . Stopped exhaust glowing red .now want start but turns over

Your catalytic converter is bad ! misfiring cylinders sends raw fuel down exhaust to catalytic converter were it burns an melts the insides causing it to plug . Suggest you take your vehicle to repair shop ! A new Catalytic converter can cost up to $700.00 or more . Some states , New York , California have to have Carb. certified cats .
0helpful
3answers

Truck backfires when going up a hill and loses power, makes noise like a busted tail pipe. Took it to a muffler shop and was told it was my converters. Is this a posibility?

Yes it could be your convertor when the convertor breaks inside it breaks chunk and those chunk bloke the exhaust so no power
1helpful
2answers

2001 Caravan has red hot catalytic converter and #4 misfire error code.

Engine is way too rich. You will burn that car up. Unburned fuel is getting into the CAT and igniting. Check the injectors.
1helpful
1answer

Stock program put in computer of 2001 Supercharged Saleen. Running lean,

That would be right and if you continue to run it in this condition it will melt the piston tops or break rings.. Take it to a speed shop that can reprogram the CPU or fit a chip that will adjust the air/fuel mixture
0helpful
1answer

Catalytic converter has plugged up twice in 3000 miles

Catalytic convertor fails due to oil burning, recent head gasket, improper fuel control,but plugging up at 3000 mile misfire surely plug it up when the vehicle is dumping gas in the catalytic, lean misfire ,running very rich due to a coolant temperature.Who is putting this on?I dont know what state you are from,a catalytic should not be installed unless the vehicle is in proper fuel control.and whoever installed this should foot the bill. You need to claim warranty regardless and plus there is a EO# that must match the vehicle.
0helpful
1answer

Cadilac coverter is turning cherry red and the car is acting like it is not getting gas

Catalytic convertor turns red for a few reasons , the main reason is because the fuel system is running lean(vacume leak) in the intake manifold or your timing is offset as well as a clogged fuel filter and or bad fuel pump, another reason can be from getting clogged from driving the car for a prolonged period of time with the lean condition , it can also get clogged if your engine is smoking heavily from the exhaust due to oil burning. in most states the catalytic is required for emissions laws, i don't know prices where you are but here we change out the convertors with an aftermarket one for $185.00 give or take depending on the flow capacity required once you have it changed you should have the "lean" condition looked at so you dont burn up the new one
0helpful
2answers

2003 Chrysler Town & Country has an intermittent rattle when in gear (drive, maybe reverse too) at an idle. Loose flex plate bolt(s)?

loose flexplate bolts would make noise all the time,wat u got sounds like a rattling catalytic convertor,meaning a worn out cat or cats. u can get under neath an hit on the exhaust pipe near the cats with engine off an hear the rattle ur talkin about. have u noticed a slight lack in power or performance ? another telltale sign of bad convertors. a local exhaust shop can raise car on lift an chek cats,inexpensive chek,expensive repair. good luck
1helpful
1answer

99 chevy tahoe...5.7 po171,po174,po420

P0171 and P0174 Means engine is running lean-Possible a dirty mass air flow sensor (can be cleaned with brake clean) failing fuel pump, vacuum leak...

P0420 means your catalytic convertor is failing-time to see your exhaust shop
1helpful
2answers

Mazda Miata: Replaced the coil pack because of misfires, that fixed misfires. Now the check Engine light comes on and the code was related to Cat Convertor. The car get hot around the console and gear...

The cat converter was trying to burn all of the excess fuel that was being sent out of the exhaust due to the misfire, got way to hot and melted the inside of the cat. I experimented with this while in tech school. You can burn up a cat in about 15 minutes at around 3000 rpm with a single cylinder misfire. I also work at a shop that specializes in miatas, and have seen this before. Get a new catalytic converter.
Not finding what you are looking for?

247 views

Ask a Question

Usually answered in minutes!

Top Nissan Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

7339 Answers

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

Answer questions

Manuals & User Guides

Loading...