Clogged Catalytic Converter
07-22-2013, 07:22 AM
#1
Clogged Catalytic Converter
My 3.0 gets poor gas mileage (9 mpg mostly on highway) and has poor power (even for a 3.0). It seems to run smooth, just low power. It's been recently rebuilt - completely.
I have set the timing, changed the knock sensor and cable, O2 sensor, plugs, wires, cleaned the throttle body, and checked for vacuum leaks.
No codes.
What is the likelihood the converter could be the problem?
I have set the timing, changed the knock sensor and cable, O2 sensor, plugs, wires, cleaned the throttle body, and checked for vacuum leaks.
No codes.
What is the likelihood the converter could be the problem?
Last edited by elaketiger; 07-22-2013 at 07:28 AM.
07-22-2013, 08:55 AM
#3
07-22-2013, 09:51 AM
#4
Registered User
Join Date: Sep 2007
Location: San Francisco East Bay
Posts: 8,254
Likes: 0
Received 822 Likes
on
649 Posts
Since the converter is downstream, the only way it could cause anything would be if it was REALLY clogged and raised the back pressure. Doesn't sound like the place I would start looking. (Glowing red could also be retarded timing, but in any event it is a 'bad thing.')
It is hard to imagine how your mileage would be so low unless you were running really, really rich. Smoke? You can check the mixture more-or-less directly by watching the O2 Sensor. http://personal.utulsa.edu/~nathan-b...01heatedox.pdf
It is hard to imagine how your mileage would be so low unless you were running really, really rich. Smoke? You can check the mixture more-or-less directly by watching the O2 Sensor. http://personal.utulsa.edu/~nathan-b...01heatedox.pdf
Thread
Thread Starter
Forum
Replies
Last Post
kawazx636
The Classifieds GraveYard
34
10-06-2021 03:03 PM
Cycles
86-95 Trucks & 4Runners
8
09-29-2015 06:37 AM
Scotttekoch
General Electrical & Lighting Related Topics
5
09-28-2015 10:30 PM
