Recent content by andfern97

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    Shaking in OD Under Load

    Thanks for the additional replies, guys. I will replace the ignition coil and check the fuel pressure this weekend, but I have a suspicion the issue will persist. I'll say I did replace both the fuel pump and the spider (installed MPFI unit) within the last year, but the filter may be one to...
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    Shaking in OD Under Load

    Sounds good - thanks! I tend to think that it may stop since I have to be on the gas for the vibration to happen, unless I just shift to neutral while still applying throttle. I'll give it a shot on my drive home though - thanks!
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    Shaking in OD Under Load

    It was an open / light trailer with a small motorcycle on it - probably less than ~1500 LBs loaded, which shouldn't really be an issue towing in OD. Even with this small load, the shaking was definitely more noticeable under throttle in OD than without the trailer. Not sure I follow missing a...
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    Shaking in OD Under Load

    Thanks for the info. It seems more speed / gear-related than RPM; I'm really only in OD under load on the highway and relatively low RPMs (1-2K), otherwise it would shift down into 3rd and the shake would then stop
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    Shaking in OD Under Load

    Appreciate the quick replies, guys. Since the engine is newer (~60K miles on crate w/ everything new & no codes), I sorta dismissed that, but I suppose that's the age when this stuff begins to fail. I'll check plugs / wires / U-joints this weekend. Would the U-joints only cause vibration at a...
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    Shaking in OD Under Load

    Hi all - asking for some advice / opinions. I have a '98 1500 with the 5.7, 4x4 / 4L60E, and ~200K on the ODO. Recently, it's been shaking under load in overdrive. It's worst if I'm going up a hill and give it some gas to maintain speed - it will shake unless I let off the gas or give it enough...
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    5.7 Vortec Idle Shake When Warm, out of ideas

    Sounds good, let me know what you find. It's really frustrating given I replaced the motor because it had low compression and misfired... Aargh!
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    5.7 Vortec Idle Shake When Warm, out of ideas

    Supercharged, I agree that it seems very unlikely for a brand new motor to come with valves out of adjustment. Do you have any ideas about what else could be causing it? Just talked to the tech on the phone and he says he can see cyl3 misfiring more than the other cylinders and vacuum...
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    5.7 Vortec Idle Shake When Warm, out of ideas

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    5.7 Vortec Idle Shake When Warm, out of ideas

    Hello, I have a question for all you experts here! I have a '98 5.7 vortec that has a brand new motor in it 5000 miles ago. It has a vibration/rough idle problem that feels worse when the truck has warmed up. I've already changed all of the following within the last 5k miles: New L31 Vortec...
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    Garage decor!

    Recently converted 5.7 vortec to MPFI, while also adding some decor to my garage!:Big Laugh:
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    Will my truck tow car? Towing tips anyone?

    Jeez, yeah that is quite a bit over the tow rating lol. I'm still nervous about it and mine is within the tow rating. Maybe it's just because I've never towed anything this heavy, hopefully when I get on the road next week I'll be pleasantly surprised and not so nervous. I could rent a truck I...
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    What have you towed lately

    Damn looking through these and seeing peoples' clean non-rusty trucks sure makes me jealous! I have a "clean" one for Minnesota standards and it's still rusted to crap on the underside...
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    Will my truck tow car? Towing tips anyone?

    Thanks guys! I got the weight rating off the U-haul website, but it definitely does seem high especially noting that the trailer isn't even a full flatbed it's more of a skeleton type deal. 2210 is what they say but still seems high to me. I'll make sure to take it easy and give a lot of...
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    Will my truck tow car? Towing tips anyone?

    Jeez yeah that definitely would have made for a scary situation. I'll make sure to check everything thoroughly before setting off!
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