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The usa 99 does not inject air into the exhaust system at all and does not have a secondary air pump.
That is a strange one. The only usa cars that did not have precats were 99s. What makes that strange is that 99 usa cars did not have air injection.
I've had mine off the tender for about 2 months without a single drive and it really hasn't moved.
Good question and I have no idea. I was in a similar position as you are in in 2018 but my situation was easier to determine. My tensioners were...
That date code is the 3rd day of December 2004, so even if it is updated you might as well replace it anyway.
Whats the number engraved in the frame rail? It looks like a 15?
They did the same thing on the 360. Early cars had a different thick gauge one piece intake tub than later cars.
How do we got them?
Does a modern 200 cell throw any codes on a 99 using oem o2 sensors?
I had my injectors cleaned/balanced about 2 years ago. It made a big difference. The shop I take my 99 to decided to make it a part of their major...
10,000 rpms would be an amazing sound to experience.
Another thing to consider is that as the pumps get very old they can get weak. I have a 99 360 and it had the original pumps on it up till last...
Fantastic, with that info I'm going to see if I can find a set of the updated redtops and put them on my 99.
How's the induction noise with the new red tops on the intake?
I don't think this is very helpful but there might be some useful information here.
Interested to know if the intake noise changes.
What kind of exhaust do you have on the 360? It sounds great.
Is this in all gears? I've developed a whistle in 6th.
Assuming I understand what you are describing correctly, that is how they did it from the factory for the 360. Here is the parts diagram.
Go fill up. Keep track of the amount you put in, subtract that from 25 and there is your number.
