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  1. OEM Issues
    So I got the code for air injection problems. I replaced the check valve. Replaced the air filter. Replaced the air pump (smog pump) relay. Took the pump to a local parts store and we hooked a battery to it and it started running, so I assume it is good? What to do next? I'm at the end and...
  2. OEM Issues
    I've read several posts on here and have a question that I can't find so be patient if you found it. :) On my 2005 envoy, I am trying to find the right/easy way to remove the air pump and relay. It looks like it may just be three screws that mount it to a plate on the frame, but don't want to...
  3. General
    My 04 TB was making a strange noise when I turned the engine off; a whining or winding noise similar to a jet engine shutting down is the best I can describe it. My mechanic said the bearing in the AIR pump was bad and the pump needed to be replaced. Despite a hefty bill, replacing the pump...
1-3 of 3 Results