You can try that but if your check engine light is not on it won't help. Try to get the engine hot before you take it through emissions testing. If it still doesn't pass you will have to change the catylitic convertor. I had ths same problem in a 93 Silverado with a 305. You can also try to do a tune up on the vehicle if that hasn't been done in a while. The timing will be the most important part of it because that will determine where the engine fires and how well all the fuel gets burned.
chlorofluorocarbons
No, it must be repaired and/or replaced.
The best place to have a Chevrolet Silverado's seats replaced is a local shop or Chevrolet dealership, which can be located in your area using the telephone directory.
Yes if you can find a good cab.
If it's running like it's supposed to, there's no need to replace it. I have an 87 Silverado, and it's never had the injectors replaced.
There's no possible way to pass inspection with a bad catalytic converter, if if you find out you have a bad catalytic converter during your inspection you have a chance after you after you have replaced the catalytic converter and the inspection no no charge/free!!
I have been to a local shop for the same problem on my 2003 silverado. It is a worn out sensor, it will have to be replaced. In my case I replaced the seat and seatbelt catch and all the sensors from a wreaked 04 silverado.
No, it is illegal to remove a converter and not replace it.
The differential on a 1986 Silverado can be replaced with any year differential from 1973 to 1987. The replacement differential must be either a 2-wheel drive or a 4-wheel drive, depending on the type that needs to be replaced.
Needs to be replaced.
the battery my have a bad cell, or the starter may need to be replaced
Yes. They do sell a window motor GEAR KIT.