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  1. DonnieBrasco

    2013 Silverado - dropping gears when coasting downhill

    I just got my first truck. Been driving an '03 Yukon for the last 15+ years. Just got a 2013 Silverado LTZ, 5.3L V8. This weekend we had it camping in the Appalachians. On the interstate, when going down the grade, I would coast a fair amount. And I started noticing that when I was coasting...
  2. DonnieBrasco

    AC not cooling - likely compressor, could it just be clutch?

    My AC is not cooling. I got a can of refrigerant to recharge it, but then I noticed that the compressor doesn't seem to be kicking on. My questions are... (1) How do I confirm if the compressor is totally dead? (2) Is it possible to replace the clutch only or is it an all or nothing type...
  3. DonnieBrasco

    03 Yukon - TPS codes and TPS about year old

    A little over a year ago, I started getting "reduced engine power" and throwing codes for the TPS. I replaced the TPS and didn't have any problems since. Until yesterday. Yesterday I picked up the truck after getting some new tires and got reduced engine power. I shut the car off and cranked it...
  4. DonnieBrasco

    Vacuum in gas tank - already replaced almost everything

    2003 Yukon has been throwing the code for the fuel evap (445 and/or 446?) for a while now. As far as I know, this code and the vacuum associated with it can come from one (or more) of four areas: (1) Evap/purge unit on engine block; (2) Evap/purge unit under the car near the tank; (3) Charcoal...
  5. DonnieBrasco

    Engine noise - like a pressure cooker - some coolant loss

    2003 Yukon 240k miles. Not sure if these are related, but I'll give all the info I can... Last week had a massive coolant leak. Like, add coolant and can see it pouring out right around the water pump. Investigated and I'm 99% sure it was the water pump. Changed out the water pump and...
  6. DonnieBrasco

    03 Yukon - "Battery Not Charging" but intermittent...

    2003 Yukon Last weekend got in the car and the battery light was on, the gauge was below the normal 14 volts, and it said battery not charging. Ok, so my first thought is alternator. Get out the multimeter, check the batter, it's only getting about 12 volts. So, alternator, right? Still cranks...
  7. DonnieBrasco

    2003 Yukon losing ~3 quarts oil over 3k miles

    Yukon has about 225K miles on it. Lately I've been noticing a "check oil level" message on the dash that usually pops up near the end of an oil cycle (around 2800-3000 miles) but when I check the dip stick everything seems fine. Moreover, I never notice a pool of oil under my car in the driveway...
  8. DonnieBrasco

    03 Yukon - reduced engine power issue

    2003 Yukon with about 225k miles. Driving down the interstate yesterday and all of a sudden it starts dinging, traction control turns off and it says "reduced engine power" and I can't go over about 20 mph and 2k rpm. Got it towed to my house to try and figure out what's up. I've been reading...
  9. DonnieBrasco

    Vacuum pressure when removing fuel cap - solenoid?

    My check engine light (CEL) came on about a week or so ago. I haven't had a chance to run a scan yet. Well, this weekend I noticed by gas gauge acting funny. My gas light came on and I reset my trip odometer (every time my gas light comes on I reset to odometer to give myself 20 miles or so)...
  10. DonnieBrasco

    Oil pressure fluctuation - 2003 Yukon

    2003 Yukon with ~215K miles. Never noticed any issues or fluctuations with my oil pressure. Right after cranking up it bumps up to dead center at 40 and holds there. This weekend I started noticing some fluctuation. Now, I was overdue for an oil change. Not extremely overdue, but it had been...
  11. DonnieBrasco

    Noticed these when changing brakes, what's up?

    I was recently changing the front brakes on my 2003 Yukon. She's got about 215K miles and is still truckin' along fine. I noticed these two things when I got the tire off... Where my gloved hand is, there are two things that look like loose rubber gaskets, but in actuality I think it's the...
  12. DonnieBrasco

    Screw holding dome lights and rear AC controls

    2003 Yukon. You know the assembly in the ceiling in the front seat with the two interior lights and controls for rear air? There's one screw in the front (closest to the windshield) that holds that end flush with the ceiling. My screw fell out last week and went God knows where. I've looked all...
  13. DonnieBrasco

    Questions before I replace my water pump

    2003 Yukon. Time to replace the water pump, losing a good bit of coolant from the seals and/or weep hole. I plan on replacing the pump, thermostat, serpentine belt, and AC belt. This is based off of articles I've read and videos I've seen. I've got a few questions before I start the project so I...
  14. DonnieBrasco

    Help dropping trans pan and changing fluid

    2003 Yukon with about 195k. Next project (before the water pump) is dropping the pan and changing the transmission fluid and gasket on the pan. I need some guidance on this. I've read that just dropping the pan and changing that fluid won't change out all the fluid. I've also read that...
  15. DonnieBrasco

    Best DIY book

    I figure out most of my repairs on here and the Google. But I want to get a book to keep in the garage for quick reference. I'm just curious what y'all recommend as the best. I know of Hanes and whatever that other one is. What say you guys? Thanks.
  16. DonnieBrasco

    Missing an oil pan screw/bolt

    I was changing my oil last night and noticed up at the front drivers side area of the oil pan, there is some oil there accumulating. I then noticed that one of the bolts holding the pan on up near that corner is missing. Who knows how long it's been out. Point is I am planning on replacing the...
  17. DonnieBrasco

    2003 Yukon oil leak - oil pan gasket?

    I've noticed a small oil leak. I haven't pinpointed exactly where (but will tonight when I change my oil) but it's right in the middle like basically above the oil drain plug it looks like. My oil pressure is still fine so I don't think its that sensor or anything. I am hoping and praying to the...
  18. DonnieBrasco

    Opinions on passenger door repaint

    2003 GMC Yukon. Some cosmetic issues. Year or two ago, the paint on the upper part of my passenger door started chipping away. Now it's about the size of a small sub sandwich, for lack of a better comparison. Pretty positive I'll need to get the whole door repainted. I know it varies...
  19. DonnieBrasco

    USA SPEC aux in - XM Error

    I'm having an odd issue I'm hoping someone can help me with. Forgive me if this gets lengthy, but I want to give full disclosure here in hopes someone can help me find an answer. I've got a 2003 Yukon. Years and years ago I got an iPod input installed using the USA SPEC unit. Similar to this...
  20. DonnieBrasco

    03 Yukon - hesitates before "catching" when accelerating

    Got a 2003 Yukon I've started noticing something weird. Wanted to get y'all's thoughts on it. It shifts fine and otherwise drives just fine. But every once in a while when I stop at a light or a stop sign and then press the gas to get moving, it hesitates. What I mean is I press the gas and the...
  21. DonnieBrasco

    03 Yukon - what are the side door panels?

    2003 Yukon. This picture is not my Yukon, just a picture I found so I could circle the panels I am referring to. At least one of mine is starting to come off and looks dull and brittle, almost like it's dry-rotted or sun damaged. I'm just wondering what they're "officially" called in case I want...
  22. DonnieBrasco

    Service Brake System - just want to stop the dinging

    Got a 2003 Yukon. Had this problem for a while now and researched it extensively here and elsewhere. Bottom line is, every time I start my vehicle, within the first 5 minutes or so (sometimes it's immediate, other times delayed) the error message pops up on the DIC and the ding bell dings...
  23. DonnieBrasco

    03 Yukon - pulling out radio - anti-theft?

    I've got an 03 Yukon with a USA SPEC iPod input installed after-market. I've had the USA SPEC for probably 7 years. Long story short, I need to replace it now that I have an iPhone 5. When I got the original USA SPEC installed, I had professionals do it. That was long before I was fairly...
  24. DonnieBrasco

    Separate freon for front and rear?

    I'm having some AC issues that are thoroughly covered in another thread (99% sure I need to replace blower resistor for the front) on my 2003 Yukon. The air that does come out in the front is cold. The rear blows but the air doesn't get cold. My question is, are there two separate freon "tanks"...
  25. DonnieBrasco

    03 Yukon - blower resistor - impossible to find

    I’ve got an 03 Yukon, bout 180K miles. Recently my AC went out. No, not all the way, thankfully. It’s only the front air. It gets cold, but only works on level 1 so it barely blows. Summer time is nearing here in South Carolina and I can NOT survive a SC summer without AC. The rear air works...

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