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Don't have a fix, but I have the identical problem! Sometimes I can drive 100 miles using it, sometimes it won't go 1/4 of a mile before disengaging. I think there was a thread covering this a while ago that mentioned replacing the multi-function switch, but IIRC it's an expensive part.

I recently had a problem similar to this, as well. No A/C, no recirculate, and no fan control. I replaced the panel and it completely fixed the problem. It seems unlikely you have a fan motor problem as it is blowing. Fortunately, our climate control systems are pretty simple, as the switch...

It's very easy to change the compressor, just make sure you change the dryer and orifice tube, too. And remember to have the system evacuated and vacuumed first. Of course you will want to check your sensors first to make sure they're not faulty before you change your compressor, as it may be...

It could be your freon charge is a bit low causing the compressor to cycle. Or (more likely since it is so far between times) it's cycling when you get on the accelerator with a decent force. The compressor will kick off while there is heavy acceleration on most cars. I'm sure these are no...

I had a similar problem with the AC light, then my blower wouldn't select between floor, vents, or defrost. I pulled the switch panel and found a burnt resistor on it.

Have you thought about trolling your local junkyards for the piece of glass? It won't be free, but it'll be a lot less than the dealer!

The compressor clutch on my wife's '01 Yukon 5.3L froze up, so I replaced the compressor/clutch. I serviced the A/C properly with a set of gauges and now something odd is going on. The front A/C blows nice and cold, but the rear blows warm. It worked fine before the clutch froze up. Any...

When I turn my A/C on, my voltage drops significantly, the temp starts rising, and if I give the truck gas, the belt squeals and the voltage gauge actually drops more! It's like the A/C is putting too much of a strain on the engine. With the A/C off, the gauge stays in the middle and there are...

Autozone, O'Reillys, Advance Auto, any of those chain parts places will hook you up with a free check of your trouble code. Definitely worthwhile for the price, as it'll give you a better idea of what's going on.

Piggybacking on NoEcm's comments, if you get down to removing the heads, take them to a reputable machine shop. They'll be able to check the heads for cracks. If you find none, replace the gaskets. It's worth the extra money to get the heads checked because if they're good, you'll save the...

Speaking from experience of my '98 (yours may have a completely different problem)... I noticed a similar situation with mine. Once I noticed no check engine light, I figured it had to be downstream of the motor, either tranny or exhaust. I had my cats cut off and one of them was hollow. I...

I had mine cut off, as one was clogged. While it's true your check engine light will go on (O2 sensor issues), you can make a MIL eliminator to counteract that...Just Google a bit, you'll find plenty of info on how to make the eliminators. Once you understand how they work, looking at the...

Same here, year, symptoms, everything. I get so frustrated b/c I drive on the highway a lot. It might work fine for 50 miles, or 5 miles, or not at all. I was thinking of replacing the multi-function switch, as well.

Did a search (of the forum and user manual) and couldn't find anything. Is there a way to disable the daytime running lights?

Plenty of Alabamians here! I've got a '98 Tahoe and my wife has an '01 Yukon. Best I see in her Yukon is 17 hwy.

I'll bet if you went to an auto upholstery shop they could make something up for you. It shouldn't be very expensive, and I'm sure they could match it to your leather/cloth interior.

Is the location of the puddle beneath the water pump? Could be a weep hole dripping.

I ordered a dealer part (instead of the O'Reillys/Autozone parts) and it hasn't given me a problem since! Guess it pays to order the real stuff!

Well, I wasn't able to get any help on my problem here (although I doubt anyone would have expected this problem!). Took it to a shop, and $500 later it's fixed. Apparently, when the mechanic put in the new motor, he didn''t install the harmonic balancer bolt tightly. It backed out...

I've been having some misfire/hard starting when warm issues. Every now and again, I'll get check engine light for a ECT sensor code. I've replaced it twice. Here's my question... When I screw it in, there are still 3-4 threads showing when it tightens down into the intake. Is this how it...