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    You're Not gonna Believe this!

    As a few of you may have read from my couple previous posts, I'm a newb to both the Tahoes and this forum. But I just had to post this, and I promise on Monday the picture will follow. Backstory: Just bought a 99 tahoe about 2 weeks ago. Anyway, just working on getting the kinks out, and...
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    Help Me Diagnose stuttering issue (Noob Alert)

    So here's an update. I took the day off today so I have some time to mess around with the truck. I decided to a new ignition control module/ignition coil. I swapped the ICM, tested it with a scan. My P0300 has now changed to ONLY a P0303. In a way, I'm oddly excited about knowing what...
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    Help Me Diagnose stuttering issue (Noob Alert)

    I don't know what the pictures are. What is the picture with the red arrow? What am I supposed to do with it? What is the picture with the white arrow? What do I do with it. Also, the bottom 2 pics that you sent (under the pic with the white arrow) don't show up. The link is broken.
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    Please Identify These 2 parts

    The mechanic I stopped by yesterday said that he thinks it's one of these or a combination of both that may be causing my random misfires.
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    Please Identify These 2 parts

    Can someone please identify these 2 parts that I'm pointing the arrows at. Thank you I also threw in a random pic of the front of my tahoe.
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    Help Me Diagnose stuttering issue (Noob Alert)

    So I stopped by a neighborhood mechanic today to ask him about the misfire. He didn't check anything out for me, but he spent a few minutes educating me. I explained the issue, that I've got a random misfire. I told him what I thought the causes might be and what I'd done so far...
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    Help Me Diagnose stuttering issue (Noob Alert)

    Great. I have both Fuel pressure gauge and Vacuum Gauge ready to go. Here's what I've done so far. Sprayed carb cleaner around intake and vac hoses. Got no spikes in idle. Removed and Cleaned Mass Air Flow Sensor Changed PCV Valve Cleaned EGR Valve. (Per this forum in Tech info)...
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    Help Me Diagnose stuttering issue (Noob Alert)

    Hi guys, here are the details. I've got a 99 Tahoe with the 5.7L engine. I just purchased it, it currently has 182,000 miles on it. So far I love the truck, and it only seems to have a few minor issues. I've been tinkering around with it and have got it from 7 codes down to 1. The...
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    Rough on cold start?

    Ok. So I spent the day with my new tahoe. It's actually a nice vehicle to work on, unfortunately I"m a little "under-height" so I have to practically lay across the engine to reach the distributor cap. So here's what I did today. 1. Changed disty and rotor. 2. Changed plug wires...
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    Rough on cold start?

    So I changed all 8 plugs. I didn't have the chance to change the wires, rotor and cap yet. I'll do that tomorrow. But the new plugs made no difference. Good thing is, the old plugs didn't look to bad once pulled.
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    Rough on cold start?

    Thanks for the responses. I just went up to get the tune up kit. Rotor, cap, wires, plugs. I had them give me the codes while I was there. 300, 420, 430. I didn't have them print them out, so I'll have to look them up. 300 is multiple misfires. Fingers crossed it's just bad plugs...
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    Rough on cold start?

    Hi everyone, I'm new to the forum and looking for a bit of help. Last week I purchased a 99 Tahoe 4x4 with approx. 180,000 miles on it. Right now, I'm using it as my daily driver, and am very happy with it so far. I picked the Tahoe up knowing that there were some issues with it. The seller...

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