Crawled under the car tonight..
#1
Senior Member
True Car Nut
Thread Starter
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,135
Likes: 0
Received 0 Likes
on
0 Posts
Crawled under the car tonight..
To see that the exhause hanger that supports the pipe just after the Cat has rusted around were its bolts to and is free haning so i removed it, and resorted to 2 metal coat hangers, i fixed them up in there quite well until i can get a new hanger and put it in. Also how do i know if i need a new CAT for sure, im getting poor mileage and it idels bad but is there any physical way i can tell for sure?
#2
Senior Member
True Car Nut
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Likes: 0
Received 0 Likes
on
0 Posts
The poor milage and rough idle are more likely the front O2 sensor. The Cat is for clean air, you could remove it and fake the rear O2 sensor but you wouldnt pass the air care test if needed too?
#3
Senior Member
True Car Nut
Thread Starter
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,135
Likes: 0
Received 0 Likes
on
0 Posts
Its a new O2 sensor....whats the chances that its a bad one ....NGK... Also i scanned it for codes and its not throwing anything
#4
Junior Member
Posts like a Ricer Type-R
93'* don't have the O2 after the Cat, a bad cat can be identified by shaking or kicking it. If you hear a rattle, chances are it'* time for a new one.
An O2 sensor rarely throws a code when they go bad. They just get weak. Does your exhaust smell rich?
An O2 sensor rarely throws a code when they go bad. They just get weak. Does your exhaust smell rich?
#5
Senior Member
True Car Nut
Thread Starter
Join Date: May 2003
Location: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Posts: 8,135
Likes: 0
Received 0 Likes
on
0 Posts
yeah it smells rich, makes the garage smell bad if i fire it up and dont back it out right away...
#6
Junior Member
Posts like a Ricer Type-R
I'd suggest getting an AC Delco O2 sensor. Regardless of the age of the NGK. I used a Bosch for 60 days (bought it new) and had to replace it. I'm not a fan of anything Bosch on our cars, and usually like the NGK, but this is now the second fairly new NGK O2 sensor I've seen here that may be suspect.
Part numbers for the O2'* are in Techinfo, just run it through www.gmpartsdirect.com
Much better than dealer price. There is some risk of shotgunning here, but the O2 is the primary cause of running rich 90% of the time.
Part numbers for the O2'* are in Techinfo, just run it through www.gmpartsdirect.com
Much better than dealer price. There is some risk of shotgunning here, but the O2 is the primary cause of running rich 90% of the time.
#7
Senior Member
Certified GM nut
Join Date: Feb 2003
Location: Georgia
Posts: 2,095
Likes: 0
Received 0 Likes
on
0 Posts
Best way to tell for sure if your cat is backed up is by taking temp readings before and after the cat. Either buy a decent digtal thermo that has a high range or take it to a shop and ask if they could check for you. The temp right before the cat should be very close if not exactly the temp after the cat. If the temp before it is higher then your cat is backed up. As I understand this is industry standard for checking the cat.
Thread
Thread Starter
Forum
Replies
Last Post
TJ'sblackbonne
1992-1999
67
09-10-2007 01:26 PM