Plugged Cats Causing To Overheat? - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 5 (permalink) Old 09-28-2016, 03:20 PM Thread Starter
Newbie
 
Join Date: Sep 2016
Location: Cedar Falls, Iowa
Age: 27
Posts: 21
Garage
Plugged Cats Causing To Overheat?

Ok, well I haven't been on here for long and I haven't posted much. However, I have a 97 Bird 4.6 AED S/C. My ECU died on me and while it was it was dumping fuel and the car was running extremely rich. Going down the road the car looked like a diesel truck..... lol Anyways I have gotten a new ECU and waiting on a tune from Don Lasato but the car is my daily and I noticed it has started to overheat. I changed the thermostat thinking it could be sticking and it's still overheating. Everything else fine no blown head gasket or anything, fan is working, etc. So my question is could my cats been plugged from it running that rich and causing it to overheat?

97 TBird Allen S/C 4.6
FakTorThis is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 11-05-2016, 02:38 PM
Newbie
 
Join Date: Jul 2016
Posts: 22
Garage
If your cats were so clogged your car wouldnt even run. Happened to me. I had to gut them out, The car would not go pass 1500rpm and die. As far as overheating, I dont think so. Clogged cats would have excessive back pressure causing the engine to choke and shut off.

1997 Thunderbird LX V8 - Sport Package
97LX is offline  
post #3 of 5 (permalink) Old 11-07-2016, 05:53 PM
2nd Gear Poster
 
Join Date: Aug 2016
Location: Missouri
Age: 28
Posts: 64
They could be partially clogged and are probably pretty well contaminated from the fuel dumping. I'm not sure if that's causing your overheating issue, but it's probably a good idea to replace them.
moonshiner180 is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 11-08-2016, 08:13 AM
PostWhore
 
T6Rocket's Avatar
 
Join Date: Nov 2004
Location: Raleigh, NC
Posts: 1,747
Like mentioned, I think you would notice the power being down excessively for the cats to be clogged. I would keep looking at the cooling system. Is it losing coolant?

I would throw a can of Seafoam in the tank and intake tube, which "might" help clear out the cats. I would make 110% sure the cats are clogged before replacing them. Factory cats last 300k+ miles and are made from superior materials, that's why they cost so much. Aftermarket cats are made from inferior materials, that's why they cost so little. In other words, don't be surprised if they need replaced again in a few years.

What does the exhaust smell like? Different?

Al

97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
Previous Fords:
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles
T6Rocket is online now  
post #5 of 5 (permalink) Old 11-08-2016, 05:24 PM
No, Mr. Lemmywinks, No!!!

Moderator
 
Grog6's Avatar
 
Join Date: Jun 2005
Location: Harriman, TN
Age: 56
Posts: 10,023
Garage
Like I've posted before; pull the front o2 sensors, and crank it up.

Don't drive it, just rev it.

If it blows several pounds of fine carbon dust everywhere;

Hey, your Cat's are Clogged!!



Don't drive it without the o2s, it will likely break if you do.
Best case, it goes into "limp home mode"; 2nd gear, no power.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.


"War Is Peace. Freedom Is Slavery. Ignorance Is Strength." - George Orwell.
Truth Isn't Truth. - Rudy Giuliani, 2018 Award winner, “Most Outrageous Diversion” by MSNBC for this quote
Grog6 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome