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    Weird Temperature Control On Defog

    My heat/ ac controls work normal in every position except defog(windshield blower) when the control is rotated all the way that direction, the temperature control does not function properly. I get about 2 "clicks" of warm, then it blows full cold, no intermediate control as there should be and...
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    Exhaust leak killing O2 sensor?

    I have a poorly fixed exhaust leak between the manifold and cat on the left side of my engine. Long story short, I got a piece of pipe with the flange and O2 sensor mount and have them clamped together with one of those metal band repair clamps. The cuts are not perfect, and it definitely leaks...
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    Emergency CV axle repair

    So I think I have a CV that is blown. It was making some skipping clunking noise around corners, and a pulsing grinding noise with each wheel rotation. It is worst when turning hard right, and especially bad if I engage 4x4 and make it bind up. Even without jacking the car up, there is...
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    No Brake Lights

    After doing an oil change, fixing a window regulator, and a few other little things that had been bothering me, I was happily out on a drive the other day noting how damn near everything was working perfectly for once. This was until another driver pulled up and said "you know you ain't got no...
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    Fuel pump has power but not running

    I am baffled by this one. I was pretty sure my pump was dead, relay was good, but there was no prime. I got the tank dropped, tested the wiring, and it was all good. 12V on the pump power wire for a few seconds when key goes on, then back to 0. Ground was less than 2 ohms to the negative battery...
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    Bad fuel pump?

    02 Tahoe 4x4 5.3 Flex. 330,000 miles. I think my fuel pump died last night. Hoping it could be something else. I slowed down to a stop sign, it stalled and would not restart. Fuel pump is not coming on to prime (I can usually hear it, but it's silent. I swapped the fuel pump relay, still...
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    Oil When Replacing AC compressor

    I'm in the middle or replacing my compressor. Had a shop purge the system, I'm swapping the parts, then they are going to pull a vacuum and charge it back up. I'm trying to figure out if I need to add oil to the system. The specs say it takes 11 oz total for the system, and the compressor states...
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    Locks and Alarm Going of In Rain

    The last 2 times it has rained, my alarm has started repeatedly going off. I can disable it, but it comes back within a few minutes. I have to disconnect the battery now whenever there's a chance of rain overnight... Last time I drove it after this happening (and having the battery disconnected...
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    Low cold start oil pressure

    Noticed that my oil pressure has seemed a little low in the cold this winter. Sits around 30-35 at idle, climbs to maybe 45 driving, but doesn't settle in to 50-60 like Id expect until the engine fully warms up. Is this something I should have serious concern about? It feels like if runs just...
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    Exhaust Tailpipe Routing w/ New Muffler

    Just had a dynomax ulta flo muffler welded on. Currently no tailpipe at all, but I really should do something. It sounds great, but the drone is awful, and the low end torque is gone. any suggestions on how to get some of the torque back? I'd like to have it exit out the back, but I feel like...
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    Extreme inner pad wear, caliper seems fine

    Put new rear calipers on about 2 years ago after one seemed to be sticking. This was before I really did my own work and it was a shops diagnosis and solution, but the warranty is up. In the last year, the right caliper ate through its inner pad WAY too fast. I replaced the pads, cleaned it all...
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    Differential splines

    I'm looking to buy one of these, the difference being the size (I think we have 8.5in?, but that I can obviously check), and the number of splines...
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    Road Trip Prep

    In taking my 'hoe for a big cross Country road Trip over the summer. Will be around 10,000 miles over a few weeks, and will include some off road/ overland type driving. Anyone got some tips on what to do / bring to prepare? She's about to hit 300,000 miles already, so I don't expect to make...
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    3in Muffler Install

    So I'm planing on getting a Dynomax 17233 muffler, which is 3in offset in and center 3in out. (see here: https://www.amazon.com/Dynomax-17233-Ultra-Welded-Muffler/dp/B000CIT29A). What do I need to properly install this myself, I'm away from my truck right now and trying to get stuff ordered? I...
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    Fixed Orifice PCV Valve?

    I'm going to replace the PCV valve in my 02 Tahoe 5.3 Flex, pretty sure it's never been done in 295K Miles... The one stores match to it is the spring type, but I've read some stuff saying I should switch the the newer fixed orifice type? Others said that requires some modification other than...
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    Broken Intake Manifold Vacuum Fitting Cover

    Replacing the intake manifold gasket a while back, I broke off this plastic cover that was blocking an unused vacuum fitting on the manifold of my 02 tahoe 5.3L. It was enough of a leak to bring my fuel trim up to about 15%. I put a rubber cover I bought at Autozone on it, and that sealed it of...
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    Inside Brake Pad Wear

    Had some noise coming from my right rear brake, so I pulled it off and found that the inner pad was completely shot, while the outside was still fine. The left brake was fine, and I had maybe 20k on the pads. The calipers were actually replaced at the same time as the pads last time. A shop did...
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    P0171/4 and misfire

    2002 Tahoe 5.3 Flex. In the colder months, I get a bit of a rough idle and a P0171/4 (Fuel system too lean banks 1 and/ or 2). Occasionally, especially if I let it idle more than a minute or so I get a random misfire code as well. I can't find a vacuum leak for the life of me spraying crab...
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    Things to replace with transfer case

    In in the process of replacing my transfer case in my 02 Tahoe (4l60e and np246). I believe I have suffered the dreaded pump rub causing me to loose fluid and wreck the case. Is there anything else I should replace while I have it apart, other than u joints. Are there seals that should really...
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    LOUD clunk turning in 4wd

    2002 Tahoe 4x4 5.3 flex with 280k miles. Had the first snow of the year today, so I decided to put the truck in 4wd just to make sure everything was working. The parking lot wasn't totally slick, so I expected some normal tire drag pulling out of the parking spot, but instead got a horrible...
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    Whirring Noise

    2002 tahoe 4X4, 5.3L flex fuel, 280,000 Miles I have a whirring sound that is very similar to that of most cars when driving in reverse. It gains pitch with vehicle speed, regardless of gear or RPM, and persists if I shift into neutral. I'd like to say it's coming from the front end, but it's...
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    Vibration at 70-75 MPH

    For a few months now I have had vibration that sounds more or less like a bad wheel bearing at speeds around 70-75 MPH. It goes away if I solw down or speed up out of that range. Both front hubs have been replaced as they went very bad within a month of each other. Tires have been rotated with...
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    Best Way To Free Wheel Hub

    A few months ago I replaced my driver front wheel hub on my 02 Tahoe 4wd. Man was it a brutal job. Took me a day to get it off. The spline was free with little effort, but the hub was totally seized on to the spindle. I soaked it with penetrating oil, beat the hell out of it with a hammer with...
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    Broken Connector on Evap Canister

    Well, I was replacing the fuel pump on my 2002 tahoe and I accidentally pulled one of the lines too hard, breaking the connector off of the evap canister. These things are absurdly expensive, and not locally available (that i have found yet), so is there anything I can do to safely let the car run?
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    P0131 & P0151, open loop, no power when floored

    2002 Tahoe 4WD, flex fuel, 5.3 Vortec Was driving along at ~50mph today when the car just stalled out, felt kind of like running out of gas. Started right back up and was running ok, but I realized that If I gave it any kind of hard acceleration, it stuttered and slowed down. Eventually it...

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