CAT problem

tets

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My drivers side catalytic converter needs to be replaced but I didnt want to spend the money right now to fix it so i bought a O2 sensor simulator on ebay to get my engine light to go off. just recently i started to notice a rattle under my car that comes and goes randomly. it sounds like a piece of the CAT is broken off and rattling around inside. I asked my brother about the noise without mentioning anything about my CAT problem and he said that it was probably the CAT because his truck had the same problem. Is this a problem that i should get fixed immediately or can i drive around for awhile until i decide to get it fix?
 
Sounds like the cat or some part of the exhaust is rattling against something. I don't think if you had something break INSIDE the cat that it would "randomly" come on, who knows though.

Raise it, start it, listen around for the sound, see if anything is rubbing.
 
I had a similar thing happen, thought I could drive it, no big deal. Until 1 day on the highway the car starts to lose MAJOR power. I had the car floored going 20mph. The piece that broke off in the cat clogged up the exhaust and wouldnt allow the car to breathe. This can cause extremely high temps in the exhaust side of the chamber and start to mess with internals, not too good. Drive it as long as you can but stop once it completetly clogs up.
 
Why don't you buy another 02 simulator and have an exhaust shop remove both cats and replace with a piece of pipe? If you are tested for emissions without cats that might become a problem...haha
 
There is almost always loose crap inside a dead/dying catalytic converter. You can get under the car while on ramps, lift, etc and push up and down on the cat and here the crap rattling around inside. I'd bet money that is what you're hearing.

+1 on leaving you stranded one day too.......
 
Don't drive it too hard. You don't want a back pressure blow out and pull some crap into the engine. It will start affecting your drive-ability and performance, as well as MPG.
 
I have a similar sound when i get on the gas. Sounds like something is rattling right underneath me. I thought it was my torque converter. I have some power loss when i go around conrers and try to accelerate. I have to punch it kinda hard to get it to go. Im thinking now that it may be the cat which would be a lot cheaper then a torque converter. I dont have check engine lights on though.
 
I decided just to pay the money and fix it because i dont want to have to worry about bringing up more problems in the future. Its in the shop right now.
 
Hey does anybody know if you still need the stock cats if you put on an aftermarket exhaust? my cats are shot as well but I'm looking into a new exhasut and dont want to buy new cats if i dont need to! thx :D
 
Best Option?

I have bad pass side CAT also.

I was told that...


1. A DIRECT BOLT ON would cost more but the labor would be less.

2. A UNIVERSAL CAT would be cheaper, but the labor involved in welding and removing the exhaust would be high.


Which scenario is true and or the best option??
 
I Checked with my local dealer today and they said each oem cat for the ls is over $500 each! wtf
 
The OEM CATs are of higher quality than most aftermarket CATS. If you do get a CAT replacement, get a good one since the cheaper it is, the shorter it will last. The CATs are expensive because of the metal used in the construction of the active catalyst and its substrate. CATs are actually the reason why we can't get leaded fuel anymore, it had nothing to do with atmospheric lead. The Pb is a poison to the catalyst and will kill it in short order. The cheaper CATs have less precious metal in them and this means the catalyst tends to degrade faster. Get an OEM or a high quality aftermarket CAT or you'll be doing it again.
 
The OEM CATs are of higher quality than most aftermarket CATS. If you do get a CAT replacement, get a good one since the cheaper it is, the shorter it will last. The CATs are expensive because of the metal used in the construction of the active catalyst and its substrate. CATs are actually the reason why we can't get leaded fuel anymore, it had nothing to do with atmospheric lead. The Pb is a poison to the catalyst and will kill it in short order. The cheaper CATs have less precious metal in them and this means the catalyst tends to degrade faster. Get an OEM or a high quality aftermarket CAT or you'll be doing it again.

So what will an OEM Cat cost?

And whats a good quality aftermarket cat?
 
OEM is Original Equipment Manufacturer, so you got the answer from the dealer. None of my modern cars have ever had a CAT go bad so I don't know about the aftermarket but you can bet if a company offers a selection the price level determines the quality to a rough extent
 
started my car up for the first time in about a yr, the left side exhaust pipe isnt exhausting anything, nothing coming out at all..

question: If I were to buy one of the few aftermarket exhuasts for the ls, does this eliminate the stock cats all together?
 
As I recall Cats are one of the emission components warrantied for 7yrs/80,000mi.
 
looked that up and you are correct sir

Emissions Warranties for Your Vehicle
TYPE OF
COVERAGE
YEARS IN
SERVICE/MILES
DRIVEN
4/50,000
8/80,000
2/24,000
EMISSIONS DEFECTS
WARRANTY
Certain Emissions Parts*
* Catalytic converters, electronic emissions control unit, and
onboard emissions diagnostic device (required 8 years/80,000
mile coverage per the Clean Air Act)
12
Emissions Defect Warranty Coverage
Under the Emissions Defect Warranty, Ford Motor Company provides
coverage for up to four years or 50,000 miles (whichever occurs
first).
This is an extension of the federal requirement that calls for
coverage of
two years/24,000 miles (whichever occurs first).
During this coverage period, Ford Motor Company warrants that:
² your vehicle is designed, built, and equipped to meet - at the time
it is
sold - the emissions regulations of the U.S. EPA.
² your vehicle is free from defects in factory-supplied materials or
workmanship that could prevent it from conforming with applicable
EPA regulations.
² you will not be charged for repair, replacement, or adjustment of
defective emissions-related parts listed under What is Covered?
(pages 14-15)
Under the Emissions Defect Warranty, Ford Motor Company also
provides coverage, including labor and diagnosis, for eight years or
80,000 miles (whichever occurs first) for these emissions parts:
² catalytic converter
² electronic emissions control unit (PCM)
² onboard emissions diagnostic device
Emissions Performance Warranty Coverage
If your vehicle is registered in a state where the state or local
government has an EPA-approved inspection and maintenance program,
you may also be eligible for Emissions Performance Warranty Coverage
for two years or 24,000 miles (whichever occurs first), if you meet
certain conditions.
Under Emissions Performance Warranty Coverage, Ford Motor Company
will repair, replace, or adjust - with no charge for labor, diagnosis,
or
parts - any emissions control device or system, if you meet all these
conditions:
² You have maintained and operated your vehicle according to the
instructions on proper care in the Owner Guide, the Scheduled
Maintenance Guide, and this booklet.
² Your vehicle fails to conform, during the warranty coverage period
of
two years or 24,000 miles (whichever occurs first), to the applicable
national EPA standards.
13
² You are subject to a penalty or sanction under local, state, or
federal
law because your vehicle has failed to conform to the emissions
standards. (A penalty or sanction can include being denied the right
to use your vehicle.)
² Your vehicle has not been tampered with, misused, or abused.
The Emissions Performance Warranty will not apply to your vehicle if:
² the vehicle is tested at high altitude, but is certified to meet
standards
only at sea level.
² the diagnosis shows your vehicle will pass the applicable state or
local
government test using test procedures and standards set by the EPA.
WHAT IS COVERED?
These parts are covered by both the Emissions Defect Warranty and the
Emissions Performance Warranty.
List of Parts Covered by Emissions Warranties
² Air/Fuel Feedback Control
System and Sensors
² Altitude Compensation System
² Catalytic Converter
² Controls for Deceleration
² Electronic Engine Control
Sensors and Switches
² Electronic Ignition System
² Exhaust Gas Recirculation
(EGR) Valve, Spacer, Plate and
Associated Parts
² Exhaust Manifold
² Exhaust Pipe (Manifold to
Catalyst)
² Fuel Filler Cap and Neck
Restrictor
² Fuel Injection System
² Fuel Injector Supply Manifold
² Fuel Tank
² Fuel Vapor Storage Canister,
Liquid Separator and Associated
Controls
² Ignition Coil and/or Control
Module
² Intake Manifold
² Malfunction Indicator Light
(MIL) System
² PCV System and Oil Filler Cap
² Powertrain Control Module
² Spark Control Components
² Spark Plugs and Ignition Wires
² Throttle Air Control Bypass
Valve
² Throttle Body Assembly (MFI)
² TWC Air Control Valve
² Volume Air Flow Sensor
14
Important information about List of Parts
Also covered by the two emissions warranties are all emissions-related
bulbs, hoses, clamps, brackets, tubes, gaskets, seals, belts,
connectors,
non-diesel fuel lines, and wiring harnesses that are used with
components on the list of parts, above.
Concerning parts that should be replaced on a certain recommended
maintenance schedule: These parts remain under warranty until : (a)
the
first replacement time that is specified in your Owner Guide and the
Scheduled Maintenance Guide; or (b) the time or mileage limits of
the Federal Defect and Performance Warranties (whichever occurs
first).
Your Lincoln dealer maintains a complete list of parts covered by
emissions warranties. For more details about the specific parts
covered
by the Emissions Defect Warranty, contact your dealer.
WHAT IS NOT COVERED?
Ford Motor Company may deny you warranty coverage if your vehicle or
a part has failed because of abuse, neglect, improper maintenance,
unapproved modifications, or any items included in What Is Not
Covered? (pages 8–9).
15
6. California requirements for emissions
warranties
QUICK REFERENCE: EMISSIONS WARRANTY COVERAGE
This chart shows the coverage Ford Motor Company provides under the
emissions control warranty to owners of vehicles certified for sale in
California, (your Vehicle Emissions Control Information label will
indicate
certified for sale in California) and registered in California,
Massachusetts, or New York. There are three warranties:
² Short-Term Defects Warranty
² Long-Term Defects Warranty
² Performance Warranty
For full details about coverage under California requirements for
emissions control, see:
á Defects Warranties (page 17)
á Performance Warranty (page 17)
á What Is Covered? (pages 18–20)
á What Is Not Covered? (page 20)
Emissions Warranties for California Vehicles
TYPE OF
COVERAGE
YEARS IN
SERVICE/MILES
DRIVEN
3/50,000
7/70,000
3/50,000
EMISSIONS DEFECTS WARRANTY
Short-Term Warranty
Long-Term Warranty*
* These specific parts were selected on the basis of their estimated
replacement cost at the time the California Air Resources Board
certified your vehicle for sale in California.
EMISSIONS PERFORMANCE
WARRANTY
16
EXPLANATION OF CALIFORNIA EMISSIONS WARRANTIES
Your Warranty Rights and Obligations
(Applicable if your vehicle is certified for sale in California and
registered in California, Massachusetts, or New York.)
The California Air Resources Board and Ford Motor Company are
pleased to explain the emission control system warranty on your
1999–model vehicle. In California, new motor vehicles must be
designed,
built, and equipped to meet the State’s stringent anti-smog standards.
Ford must warrant the emission control system on your vehicle for the
periods of time listed below, provided there has been no abuse,
neglect
or improper maintenance of your vehicle.
Your emission control system may include parts such as the carburetor
or fuel injection system, the ignition system, catalytic converter,
and
engine computer. Also included may be hoses, belts, connectors and
other emissions-related assemblies.
Where a warrantable condition exists, Ford Motor Company will repair
your vehicle at no cost to you, including diagnosis, parts and labor.
Manufacturer’s Warranty Coverage:
For 3 years or 50,000 miles (whichever first occurs):
1. If your vehicle fails a Smog Check inspection, all necessary
repairs and
adjustments will be made by Ford to ensure that your Lincoln passes
the
inspection. This is your emission control system PERFORMANCE
WARRANTY.
2. If any emissions-related part on your vehicle is defective, the
part will
be repaired or replaced by Ford. This is your short-term emission
control
system DEFECTS WARRANTY.
For 7 years or 70,000 miles (whichever first occurs):
1. If an emissions-related part listed in this booklet, with coverage
for
seven years or 70,000 miles is defective, the part will be repaired or
replaced by Ford. This is your long-term emission control system
DEFECTS WARRANTY.
 

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