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Re: ACC was off... Posted by Ari [Email] ![]() ![]() In Reply to: ACC was off..., Justin, Mon, 7 Mar 2005 12:14:24 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I honestly don't know if turning the ACC to OFF disables the A/C. I know ECON does. In general, if the temperature is above freezing and ECON is not off, the A/C will cycle occasionally. It does that as part of defrosting. Keeping the ACC in ECON is the sure way to rule out the A/C compressor.
It's possible that it's the DI, but unlikely. An occasional problem, only at speed doesn't sound DI-like. I'd expect the DI to show up at least on Accel, and during boost. Again, in 5th gear and cruising, you have a lot of air flow, but a minimal throttle opening. And the engine isn't using a lot of power to keep you moving along. Anything to pull a few extra HP will be noticeable.
It wouldn't hurt to check your spark plugs - I'd worry about lean running. If the plugs look white, that's a sign. That's usually due to a vacuum leak, which would cause a rough idle.
As to the tranny, I'm hard pressed to come up with something that comes and goes over a period of minutes. With a tranny, most things occur at some multiple of engine RPM or wheel speed, not minutes. Take that as good news.
posted by 192.249....
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