Cat or no Cat - The 1947 - Present Chevrolet & GMC Truck Message Board Network

turner16 · 11-11-2010, 08:26 PM

I'm struggling hard to find out if my truck came with a cat or not.
My parts guys all say if I had a dual out on the muffler then I would have had a cat. Of course all the original stuff is gone. GM dealer can't check a 13 digit VIN (to old). Another said all 1500's had them some 2500's hit and miss?
Mine is a 2500. Any way to find out? My enviro cops must know but I can't seem to contact them. Of course they will find me the second its on the road.

Any help with emissions would

baclay9 · 11-11-2010, 08:31 PM

What year?
Posted via Mobile Device

rjn72 · 11-11-2010, 08:33 PM

Is ignorance illegal in Canada?
That is what I would be pleading. lol.
Also a year would help in knowing if it had cats or not.

mongoose · 11-11-2010, 08:48 PM

i think in ont if the car came with one you need one.. and during the early 80's everything got them, i know out here you only need them if you're 88 and newer.

turner16 · 11-11-2010, 09:16 PM

Sorry its an 80, 2500
I agree, what ever it came with is still to be on the truck and working. Question still is what did it come with?

Goldfinger · 11-11-2010, 09:20 PM

If it was manufactured in the united states it was most likely equipped with a cat. this was due to an emimsion law in 76.

sandorjoben · 11-11-2010, 09:20 PM

No emissions test required in Ontario for 1987 or older vehicles so..., whether you put one on or not is your choice now. You don't have to have one if you don't want to.

Dave

turner16 · 11-11-2010, 09:25 PM

Made in Oshawa Ont

turner16 · 11-11-2010, 09:27 PM

I know I don't need a test but in Toronto they have these ministry of environment cops that pull you over and make sure you have all your emissions equipment and that it is working. I've been pulled over with my 89 Buick that requires a test every 2 years, guy told me they pull over all the older looking cars and trucks and make sure people are not removing the emission equipment for better gas mileage, umong other things.

Goldfinger · 11-11-2010, 09:37 PM

a trick i used was a gutted out cat. looks like a cat just doesn't do anything

Number21 · 11-11-2010, 09:39 PM

Quote:

Originally Posted by turner16

they pull over all the older looking cars and trucks and make sure people are not removing the emission equipment for better gas mileage, umong other things.

Thank god they're saving the world.

(that makes me want to go burn a tire!)

Tom · 11-11-2010, 10:29 PM

Just put one on if your really worried about it. They're under $100 and won't hurt milage or power.

**78 Big10 454** · 11-11-2010, 10:40 PM

Try a muffler shop. They usually have a manual showing the original configuration of vehicle exhaust systems by year and model.

pilotj · 11-11-2010, 11:15 PM

Don't know about Canada, but here in the states I believe the first year to get a cat on a 2500 was 1979. The 3500 didnt get one till 1980. Is the sticker still on your sunvisor? Another dead givaway that it had a cat is if your fuel gauge says "unleaded fuel only".

SS Delux · 11-12-2010, 02:26 AM

On mine I have a heat shield between it and the cab floor, it is only a single exaust but you might have two. have you gotten this truck saftied yet ? if not ask your local guy to get you spec'd out. I also hear that they are checking for the hollowed out cats as well, thats why mine is still intact.

Goldfinger · 11-12-2010, 08:14 AM

that would tell your does it have a thin aluminum plate under the cab. that was the cat's heat shield.

*78 Chevyrado* · 11-12-2010, 09:29 AM

79 and later U.S. 3/4 tons all had cats

turner16 · 11-12-2010, 10:03 PM

Thanks for the help guys. My heat shields and floors for that matter are all long gone.
Visors gone too, even the sticker on the air filter, all gone
I think I'll take Tom's advice and just through one on and run dual tail pipes.

11-11-2010, 08:26 PM	#1
turner16 Registered User Join Date: Sep 2010 Location: Ajax, Ontario Posts: 214	Cat or no Cat I'm struggling hard to find out if my truck came with a cat or not. My parts guys all say if I had a dual out on the muffler then I would have had a cat. Of course all the original stuff is gone. GM dealer can't check a 13 digit VIN (to old). Another said all 1500's had them some 2500's hit and miss? Mine is a 2500. Any way to find out? My enviro cops must know but I can't seem to contact them. Of course they will find me the second its on the road. Any help with emissions would

11-11-2010, 08:31 PM	#2
baclay9 Registered User Join Date: Apr 2010 Location: Newcastle, OK Posts: 1,344	Re: Cat or no Cat What year? Posted via Mobile Device

11-11-2010, 08:33 PM	#3
rjn72 Registered User Join Date: Mar 2010 Location: el paso, ar Posts: 139	Re: Cat or no Cat Is ignorance illegal in Canada? That is what I would be pleading. lol. Also a year would help in knowing if it had cats or not. __________________ JESUS IS LORD 87 crew cab V30 454/400

11-11-2010, 08:48 PM	#4
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: Cat or no Cat i think in ont if the car came with one you need one.. and during the early 80's everything got them, i know out here you only need them if you're 88 and newer. __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

11-11-2010, 09:16 PM	#5
turner16 Registered User Join Date: Sep 2010 Location: Ajax, Ontario Posts: 214	Re: Cat or no Cat Sorry its an 80, 2500 I agree, what ever it came with is still to be on the truck and working. Question still is what did it come with?

11-11-2010, 09:20 PM	#6
Goldfinger Registered User Join Date: May 2010 Location: laurel hill Fl Posts: 645	Re: Cat or no Cat If it was manufactured in the united states it was most likely equipped with a cat. this was due to an emimsion law in 76. __________________ 1985 C10 Custom Deluxe LWB 305/700r4 [ Goldfinger ] 1999 k3500 crew cab dually 6.5tdi/4l80e

11-11-2010, 09:20 PM	#7
sandorjoben Registered User Join Date: Jul 2010 Location: Niagara, Ontario Posts: 87	Re: Cat or no Cat No emissions test required in Ontario for 1987 or older vehicles so..., whether you put one on or not is your choice now. You don't have to have one if you don't want to. Dave

11-11-2010, 09:25 PM	#8
turner16 Registered User Join Date: Sep 2010 Location: Ajax, Ontario Posts: 214	Re: Cat or no Cat Made in Oshawa Ont

11-11-2010, 09:27 PM	#9
turner16 Registered User Join Date: Sep 2010 Location: Ajax, Ontario Posts: 214	Re: Cat or no Cat I know I don't need a test but in Toronto they have these ministry of environment cops that pull you over and make sure you have all your emissions equipment and that it is working. I've been pulled over with my 89 Buick that requires a test every 2 years, guy told me they pull over all the older looking cars and trucks and make sure people are not removing the emission equipment for better gas mileage, umong other things.

11-11-2010, 09:37 PM	#10
Goldfinger Registered User Join Date: May 2010 Location: laurel hill Fl Posts: 645	Re: Cat or no Cat a trick i used was a gutted out cat. looks like a cat just doesn't do anything __________________ 1985 C10 Custom Deluxe LWB 305/700r4 [ Goldfinger ] 1999 k3500 crew cab dually 6.5tdi/4l80e

11-11-2010, 10:29 PM	#12
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	Re: Cat or no Cat Just put one on if your really worried about it. They're under $100 and won't hurt milage or power. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. Last edited by Tom; 11-11-2010 at 10:29 PM.

11-11-2010, 10:40 PM	#13
78 Big10 454 78 Big10 454 Join Date: Jul 2008 Location: Pismo Beach, CA Posts: 839	Re: Cat or no Cat Try a muffler shop. They usually have a manual showing the original configuration of vehicle exhaust systems by year and model.

11-11-2010, 11:15 PM	#14
pilotj Registered User Join Date: May 2007 Location: Roanoke, VA Posts: 78	Re: Cat or no Cat Don't know about Canada, but here in the states I believe the first year to get a cat on a 2500 was 1979. The 3500 didnt get one till 1980. Is the sticker still on your sunvisor? Another dead givaway that it had a cat is if your fuel gauge says "unleaded fuel only". __________________ 1979 Chevy C20 350/TH400 1974 Chevy C30 350/4speed

11-12-2010, 02:26 AM	#15
SS Delux Registered User Join Date: Jun 2010 Location: windsor Posts: 290	Re: Cat or no Cat On mine I have a heat shield between it and the cab floor, it is only a single exaust but you might have two. have you gotten this truck saftied yet ? if not ask your local guy to get you spec'd out. I also hear that they are checking for the hollowed out cats as well, thats why mine is still intact.

11-12-2010, 08:14 AM	#16
Goldfinger Registered User Join Date: May 2010 Location: laurel hill Fl Posts: 645	Re: Cat or no Cat that would tell your does it have a thin aluminum plate under the cab. that was the cat's heat shield. __________________ 1985 C10 Custom Deluxe LWB 305/700r4 [ Goldfinger ] 1999 k3500 crew cab dually 6.5tdi/4l80e



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11-12-2010, 09:29 AM	#17
78 Chevyrado Account Suspended Join Date: Dec 2007 Location: Unnapreciative, Trollville Posts: 2,079	Re: Cat or no Cat 79 and later U.S. 3/4 tons all had cats

11-12-2010, 10:03 PM	#18
turner16 Registered User Join Date: Sep 2010 Location: Ajax, Ontario Posts: 214	Re: Cat or no Cat Thanks for the help guys. My heat shields and floors for that matter are all long gone. Visors gone too, even the sticker on the air filter, all gone I think I'll take Tom's advice and just through one on and run dual tail pipes.

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