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Well no, I've got a K&N air filter with about 10k on since I last cleaned it. I'll take a look though.

My '01 Denali had it's fuel pump replaced about 6 months ago (at the dealership). I noticed afterwards when I let off the gas pedal (coming up to a stop sign or something), the RPMs would drop pretty low, down to about 400. It was kind of irritating, when I would step on the gas there would be...

I'll start making some calls today...

I'm not sure if you can call it a city, but I'm in St. Albans, VT, about 30 min North of Burlington. I'm all for the junkyard route. With this problem I just don't exactly what I should be asking for. I'd love to see a diagram of it's components (sensor, wiring, mirror etc)

Indeed it looks like a need a new one. Do I need to replace the whole mirror or can I just get the sensor itself, wherever that is? Anybody know where I can find something like this (besides the dealership)?

Well I tried disconnecting the wire bundle then reconnecting with a good push. No luck. Any other ideas out there. There must be a way to fix this myself.

My rearview mirror thermometer began showing wildly inaccurate temp readings recently. And for the past 2 weeks it just shows "OC". Any ideas on fixing this myself? I'd just take it to the dealer but I'm growing quite fond of the $300 in my checking account.

Well the fuel pump is fine now -- since it's a new one, $906 later. Of course I looked here AFTER I had my problems (RPMs dropping out, code reading 'running lean', would'nt start), and got it fixed (new fuel pump at the dealership). Now the idle seems a bit low, it drops down to about...

Thanks JK, I knew you'd come through. It's now on tomorrow's to do list.

I couldn't agree with you more Hoebag! I've been a member for about 2 weeks now and he's been a HUGE help. I wish I lived near him so I could somehow bribe him into turning my Denali into a smooth running kick a$$ machine. Thanks JK!

I have a '01 Denali with a rough idle when cold, seems ok when warm. I've seen a few comments about cleaning the throttle body to remedy this. I've never done that. Can someone hit me with those oh so helpful tips that make these boards a goldmine of info? :confused2:

Good news, for now. I got access to the 'inside ambient air temperature sensor'-thank you JK for the instructions. :thumbsup: When I disconnected the fan and it's housing from the grill housing it didn't hum anymore. So I blew all the dust off with compressed air, adjusted the little...

Well I shopped around and the best price I could find was $27 from a parts store (GMC dealer wanted $46). JK where did you get that price of $7?

Thanks JK. I'll ask my local autoparts store for that and get it fixed...it's pretty annoying.

Sounds like your onto it JK, but where's the "grille" in the headliner?

Thanks for those instructions JK. As I said I've got the circuit boards with the bulbs soldered on, and I've been taking them around town to try to find replacements---with NO luck. The GMC and Chevy dealer said they'd have to order the whole unit, there was no way they could get just a...

I just bought an '01 Denali, and if I turn the key to the 'On' position I get this Humming/Vibrating from the headliner just to the left of my head, in the area of the little speaker-which I believe is for the Onstar system. I don't always hear it when the vehicle is running but I think it's...

Well getting to the dash bulbs wasn't too bad-thanks for the tip on the plastic frame, JK. It didn't take me long to realize the bulb contacts are actually soldered into the electronics board, not as easy as unplugging and replacing but hopefully it won't be too bad. I'd like to replace...

I just bought a 2001 Denali and the first time I drove it at night I noticed a few dash lights are out: -- Buttons #1 and #4 on radio(which are above and below each other so I assume they're lit by the same bulb) -- 'Seek' rocker button on radio -- 'recirculate' button for climate...