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    Trading the Expy...

    So the time has come where I can't justify spending the gas to keep this truck on the road. I'm sorry to say that after 6 years with the truck, I'm trading it in for a GMC Terrain. Just want to say thanks to all the members on this forum. You have been a big help over the years with your...
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    front driver side window is pissing me off

    What did you spray them with? Did it work?
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    front driver side window is pissing me off

    Same problem here on an '03. Also had the motor replaced a while back by the dealer. Worked for a while, then came back. Only when cold. Today it stopped 3/4 of the way up. I had to play with it a bit to get it up and even then I doubt it is completely sealed. Would really like to find...
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    Rear defroster

    Hey, so my '03 is having some problems with the rear defroster. Everything is good up to the window grid. A while back I had one of the tabs fall off. I went to advanced auto and got the repair kit and fixed it for a while. It recently stopped working again. I have voltage to the tab, but...
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    High RPM

    the '03 with the 4.6 has two different spec'd part#s for the IAC. I had the same problem that you did. Got one from carquest and it did exactly what you say. Returned that one and got one from Napa and it worked like a charm. It's possible you're replacing with the wrong part# IAC. Call the...
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    High Idle after IAC replacement & Loud Humming

    Problem solved. The replacement IAC was bad. Replaced it again with one from Napa and it works fine now. Thanks to everybody to offered advice!
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    High Idle after IAC replacement & Loud Humming

    Update: Disconnected battery for a good 5-6 hours last week. Driven close to 200 miles and problem remains. Seemed to get better at first, but now is back to the way it was, with both the high idle and the humming. Called CarQuest today to see if I could exchange the IAC and they said yes...
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    High Idle after IAC replacement & Loud Humming

    OK, quick update. I disconnected the battery for about 5 hours. Driving the 15 miles home, it seems to be a bit better, but I'm not sure. I'll drive it more this weekend and see how it does. The humming sound is still there. I've narrowed it down and it's a resonance in the air intake...
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    High Idle after IAC replacement & Loud Humming

    OK, quick update. I disconnected the battery for about 5 hours. Driving the 15 miles home, it seems to be a bit better, but I'm not sure. I'll drive it more this weekend and see how it does. The humming sound is still there. I've narrowed it down and it's a resonance in the air intake...
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    High Idle after IAC replacement & Loud Humming

    Ok, I'll give it a try. How long should I leave it disconnected for?
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    High Idle after IAC replacement & Loud Humming

    Ok, I'll give this a shot. I hadn't tried this because I thought the computer was supposed to re-learn on the fly. All I do is disconnect the negative battery cable for a few minutes, right? How long should I leave it off? Thanks.
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    High Idle after IAC replacement & Loud Humming

    Ok, a little back story: It's a 2003 XLT w/ 4.6 & 124k on it. I had a rough, surging idle to the point of stall on a few occasions. Truck ran fine while moving. I checked all the hoses, didn't find any leaks, and came to the IAC. Replaced it with one from CarQuest. Surging Idle went...
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    High Idle after IAC replacement & Loud Humming

    Ok, a little back story: It's a 2003 XLT w/ 4.6 & 124k on it. I had a rough, surging idle to the point of stall on a few occasions. Truck ran fine while moving. I checked all the hoses, didn't find any leaks, and came to the IAC. Replaced it with one from CarQuest. Surging Idle went...
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    03 misfiring after 10 inches o rain

    If you haven't done them, it might be a good idea. Or replace one at a time until it goes away.
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    brr its cold in here

    Nice. Thanks for the info. So where exactly is the condenser located? Behind the main grill, or down below? Though, I suppose it wouldn't hurt to hit all the radiators with this stuff, would it?
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    03 misfiring after 10 inches o rain

    Bad coil. Mine did the same thing. Whenever it was wet out it would start running horribly until it heated up and dried out the engine. Replaced the coil on the cylinder that was giving the misfire code and bob's your uncle. Runs like a champ.
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    rear a/c blows warm, front works great, not blend door.

    Thanks for the info. I took it to my local Midas shop and had them re-charge it. Said it was a bit low. Went back and had them check for leaks. Found a very slight weeping out of the front condensor. A/C is now freezing cold both up front and in back after the re-charge while moving...
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    another rear air problem

    Did this get resolved? I'm dealing with the same issue. Front works great, but rear blows warm. Don't think it is the blend door because when I turn the rear heat on, it blows HOT. Any other ideas?
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    rear a/c blows warm, front works great, not blend door.

    Sorry, forgot to mention it's a 2003 XLT w/ the 4.6L. Manual Air controls.
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    rear a/c blows warm, front works great, not blend door.

    Sorry, forgot to mention it's a 2003 XLT w/ the 4.6L
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    rear a/c blows warm, front works great, not blend door.

    Hey guys, Today I realized that my rear air was blowing warm when a/c was on and on max. Its not the blend door because I changed the selector to hot and it got hot, and the fact that the selectors have been on the cold setting since winter ended. Front a/c works great, super cold. What else...
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    rear a/c blows warm, front works great, not blend door.

    Hey guys, Today I realized that my rear air was blowing warm when a/c was on and on max. Its not the blend door because I changed the selector to hot and it got hot, and the fact that the selectors have been on the cold setting since winter ended. Front a/c works great, super cold. What...
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    What can I do with a USB-to-OBDII connector?

    I've got a computer mounted in my '03 Expy w/ 4.6L currently with a touchscreen LCD. I'm thinking of getting a USB-to-OBDII cable, but I'm not sure exactly what all I'll be able to do with it. I know there's software that will give me real-time data, but is there cheap software out there that...
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    2003-2006 rust in the rocker

    It's an '03. How would I get information about this? Thanks!
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    2003-2006 rust in the rocker

    I just found a hole in my driver's side rocker. I'm looking for the same info. Did you find anything or can anybody else help? Thanks!

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