Calif emission

Tiny
ROYBOY55
  • MEMBER
  • 1982 CHEVROLET TRUCK
  • 7.4L
  • V8
  • 4WD
  • MANUAL
  • 74 MILES
I have been looking for 6 weeks now and the dealer as well with no luck. Maybe you guys could help me. What I have is a 1982 chevy 1 ton k30 dually with a 4 speed 4x4. I would say this is a calif pickup cause I see a egr valve. There is a emission sticker on the air filter houesing that has bold letters CAC 7.4 liter A.I.R. So I know it has a air pump. What I can not find is the emisson hose routing. I have one but shows no egr valve. There is no sticker of the hose routing under the hood. Can you guys help? V.I.N.1gchk34w8cj103873
Sunday, February 28th, 2016 AT 3:04 PM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
In 1982 that truck did not have an EGR until 1985 because it is considered heavy duty. The two vacuum diagrams which are California the first one and Federal the second support this that is why you can't find it.
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Sunday, February 28th, 2016 AT 3:58 PM
Tiny
ROYBOY55
  • MEMBER
  • 4 POSTS
So than I should remove the egr and get a block off plate. Is there any thing else I should know going forward? Thanks Roy
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Sunday, February 28th, 2016 AT 4:56 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes you'll be ok with that
That manifold is incorrect and probably was installed for whatever reason
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Sunday, February 28th, 2016 AT 5:54 PM
Tiny
ROYBOY55
  • MEMBER
  • 4 POSTS
I thank you very much for all this info. Well I will be refreshing this motor and getting her on the road for I got this truck for free and this is pure BBC. If you have any other info I can I use I would be much glad. Thanks Roy
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Sunday, February 28th, 2016 AT 9:50 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Info like what?
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Monday, February 29th, 2016 AT 7:03 AM
Tiny
ROYBOY55
  • MEMBER
  • 4 POSTS
Any info to make this truck at its best. This is not a daily driver. Ill be using it home depot runs and to tow my camper and flat bed trailer. Looking to get the best gas mileage and performance out of it
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Monday, February 29th, 2016 AT 7:46 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you are looking for gas mileage a 7.4L isn't the one to do it. Will it tow hell ya, just keep it tuned as best as possible. Don't drive with foot through the gas pedal. Towing a camper shold be about 8 mpg up to a 32 foot camper
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Tuesday, March 1st, 2016 AT 6:24 AM

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