I cut off the catalytic converters on my 2001 Navigator and i can still see daylight through them. How do you know if you need new ones? I also changed all the coils and plugs but still losing lots of power on the slightest incline and check engine light flashes like crazy

Markuss7
30

Asked by Markuss7 Mar 10, 2013 at 05:19 PM about the 2001 Lincoln Navigator Base 4WD

Question type: Maintenance & Repair

How do you know if the catalytic converters need to be replaced

7 Answers

judge_roy
Not Active

It gets chokey and will no longer remove the carbon monoxide, changing into CO2-

1 out of 1 people think this is helpful.
Markuss7
30

How do you know if they are plugged up after you remove them because i already removed mine and i can still see through them

3 out of 3 people think this is helpful.
judge_roy
Not Active

well, 'plugged up' refers to impeding the flow- It's not a muffler, just a chamber for an electrochemical reaction to occur. put it back on and take it to an emissions evaluation machine, like the kind at your smog inspection station-

judge_roy
Not Active

pretty hard for a person to take in carbon monoxide and turn it into carbon dioxide. That's why we need these things, so you cannot commit suicide with your exhaust as easily.

judge_roy
Not Active

well the active material has apparently been burned away...perhaps by too rich or too lean a fuel mixture-

1 out of 1 people think this is helpful.
judge_roy
Not Active

I can remember a Camaro came into the shop, was running like hell, and I looked underneath and the catalytic converter was cherry red! Good thing the driver did not park on some leaves-

1 out of 1 people think this is helpful.
Js08016
29,165

A flashing "check engine" light means something, usually a misfire condition, is going on that is damaging your catalytic converter. You should not drive it while the light is flashing. The downstream oxygen sensor monitors the catalytic converter's performance and will set a trouble code, I believe P0420, to alert you the catalytic converter is bad. What trouble code(s) do you have? HTH. -Jim

Your Answer

Add photo

Related Questions

Navigator
Looking for a Used Navigator in your area?
CarGurus has 4,635 nationwide Navigator listings starting at $2,995.
ZIP:

Search Lincoln Navigator Questions

Lincoln Navigator Experts

#1 jimmyarango
jimmyarango
Reputation 670
#2 T_S_T
T_S_T
Reputation 280
#3 kbro
kbro
Reputation 230
View All

Related Models For Sale

Used Ford Expedition"
413 Great Deals out of 14,349 listings starting at $1,400
Used Cadillac Escalade"
212 Great Deals out of 5,596 listings starting at $2,999
Used Chevrolet Tahoe"
695 Great Deals out of 23,947 listings starting at $1,955
Used Chevrolet Suburban"
417 Great Deals out of 13,617 listings starting at $1,885
Used GMC Yukon Denali"
157 Great Deals out of 7,151 listings starting at $1,495
Used GMC Yukon"
252 Great Deals out of 8,189 listings starting at $2,495
Used Ford Explorer"
1,020 Great Deals out of 45,405 listings starting at $1,699
Used Ford F-150"
2,342 Great Deals out of 97,506 listings starting at $1,499
Used GMC Yukon XL"
243 Great Deals out of 8,637 listings starting at $2,600
Used Cadillac Escalade EXT"
33 Great Deals out of 519 listings starting at $7,400

Used Cars For Sale

2015 Lincoln Navigator Base 4WD For Sale
1,028 listings starting at $55,000
2014 Lincoln Navigator Base 4WD For Sale
9 Great Deals out of 119 listings starting at $38,500
2013 Lincoln Navigator Base 4WD For Sale
3 Great Deals out of 103 listings starting at $30,999
2012 Lincoln Navigator Base 4WD For Sale
5 Great Deals out of 95 listings starting at $27,520
2011 Lincoln Navigator Base 4WD For Sale
7 Great Deals out of 56 listings starting at $19,995