Cats R Plugging Up
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Senior User
Joined: May 2008
Posts: 105
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From: Lupton, Mi
Cats R Plugging Up
Well, I'm sure my cats are plugging up. But I live in the good old state of Michigan where there is no testing for such things.... So I went to a muffler shop and if I bring it in without the cats on it, they will charge me $70.00 or so to make the Y to connect the two pipes into one.... then more for a str8 pipe to my muffler... is that reasonable? Or should I remove the muffler and get the cats hot and smack them two buggers with a BFH and floor the **** out of the motor??? Think that would work?
thanks
btw, its a 1988 F-150 XLT Lariat 302 EFI, C6, 2 Wheel Drive
thanks
btw, its a 1988 F-150 XLT Lariat 302 EFI, C6, 2 Wheel Drive
Elder User
Joined: Aug 2006
Posts: 813
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From: foristell, missouri
what i would do is just cut the cats out and replace it with a peice of pipe that length and diameter and weld it in with a connector at each end. well i just remembered that ford made the pipe 3" before the cats and 2" or 2 1/2" after so you might have to get a peice of pipie made to replace the first cat.
Lead Driver
Joined: Feb 2003
Posts: 8,140
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From: Oak Harbor, OH
There is a reason the cats are going bad. I think I'd address that issue before I remove them. Are you absolutely positive it's the cats, and not something else? There are all sorts of things that will make a vehicle lose power and seem to run poorly. Unless the truck has been a serious victim of neglect I doubt the cats are the problem.
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Senior User
Joined: May 2008
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From: Lupton, Mi
this truck has been abused. the last owner did nothing but haul with it the last 4 years.... and ran the cheapest krappist gas he could in it. I have done a tuneup, fuel filter... I ahve replaced the O2 senor 3 times in the last 4 weeks and still shows up as not working.... I know its the cats... my 94 sable did the same thing. I think I'll just hollow out the first.... remove the second for now.
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Lead Driver
Joined: Feb 2003
Posts: 8,140
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From: Oak Harbor, OH
I'd bet on a fried computer first. That or a bad ground at the O2 sensor. Usually when you have a persistent code for the same part even though it's been replaced it's a computer issue not a mechanical one. Other that the code how does it run? Is is sluggish?
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Senior User
Joined: May 2008
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From: Lupton, Mi
kinda slugish.... when i drive down the road the CEL light will blink like its doing a test... I also replaced the TPS and cleaned out the throdal body and the other sensor in there a while back
Laughing Gas
Joined: Oct 2001
Posts: 957
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From: Winchendon MA
You need to warm up the truck and take exhaust temps before and after the cats this will tell you if there the problem or not.
Why not just replace them? there not that badly priced and the O2 needs to see the reflected heat to stay clean as there not heated except on start up.
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Why not just replace them? there not that badly priced and the O2 needs to see the reflected heat to stay clean as there not heated except on start up.
44
