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    Threw a Rod. How can this happen in 2023

    Good afternoon Gentlemen and thanks for all the great advice and guidance here. I have to clarify: I was wrong on the GVW, which was 8,900 lbs at the time. I was carry my little TW200 in the front. Checked my notes from all the trips that we've done to the State Trooper scales. Not sure...
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    Threw a Rod. How can this happen in 2023

    Gentlemen, I very much appreciate all your thoughtful comments. I will try to address each one. I don't believe it was overheating at all on my very early morning drive from Portland to Hood River. The incident happened on Country Club Road, which has a fairly steep hill. First there was a...
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    Threw a Rod. How can this happen in 2023

    Sorry gentlemen, I left out the most important detail (oversight on my part): it's a 5.7 liter. I was doing 40 mph and punched it to 55mph or so pass a slow-moving truck up a short, but really steep hill. No mods at all to the original engine. I really don't need snarky comments implying...
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    Threw a Rod. How can this happen in 2023

    Actually, it was a rod bearing that went out on me. 1999 Chevy C2500 Classic 4X2 Regular Cab w. 10.5” Axle with 152K total miles, original engine and 4L80E. Hauling a 3,500# Lance Truck Camper at 8,700# total GVW. I’m the second owner and have maintained the truck as well as the original...
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    Stock low-profile mirrors to tow mirrors

    Hi TK, I use the USA-made **** slip on mirrors when I haul my 4,000 lb. truck camper and they've worked fairly well. The left side has a good sight plane while the right was useless in stock form. So I put a 5-inch convex spot mirror on that side and it has worked well. I couldn't drive my TC...
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    4l80e doesnt shift up after downshifting to pass

    Hi Ahansel, I have a similar problem w. my '99 2wd C2500 under the heavy load of my truck camper when passing on steep hills. The truck shifts into some sort of safe mode. It only did this w. the TC in the bed and on steep hills. Pulling over to stop/start again always reset it back to normal...
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    Did I just buy the wrong Service Manual?

    Thank you so much everyone for your helpful comments! I really appreciate it. Well, it looks like I have a very nice set of 1999 Chevy Silverado Service Manuals (they're almost brand new) that I don't need. If there is a member here who would like them for their truck (please, not to...
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    Did I just buy the wrong Service Manual?

    Yes, that's what I have. The body style is def. different. So the whole chassis is as well? What's throwing me off is that I believed when Chevy came out with the Silverado model it dropped the C/K designation. Is that now incorrect? Thanks for your reply. P
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    Did I just buy the wrong Service Manual?

    I got a (what I thought was) a great deal on eBay for the Service Manual for my 1999 Chevy C2500 Classic Longbed 2WD truck. The cover clearly says C/K and Silverado, and I was sure it would cover my GMT400. The first page (see pic), however, doesn't say anything about C/K, only...
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    TRANSMISSION LIMP MODE? P0131 Code Comes and Goes

    My 1999 C2500 w/ 5.7 engine; 4L80E tranny; 10.5 Corporate Rear; 1-ton springs; and 155K miles that hauls a heavy Lance Camper (total GVW 8,800 lbs fully loaded) has recently developed a problem when downshifting in drive (No. 3 on selector) on steep hills at 55+ mph. The tranny seems to shift...
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    Simple Way to Disable Starting System

    Gentlemen, quick question about an easy quick, but clever way to disconnect the starting system. My neighborhood has recently been infested with yo-yo meth-heads from a nearby homeless camp who like to break into cars to steal things inside or take the whole car. They are not sophisticated...
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    GM 4L80E Filter Replacement - In Middle of Job

    Which of the two (2) cooler lines? So the engine at idle will flow fluid through the TC? Is it possibly damaging to the trans to have the fluid run through the cooling line OUT of the system until its empty? I do have two gallons of Dextron. I may need three, actually. Yes? I'm just worried...
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    GM 4L80E Filter Replacement - In Middle of Job

    Hi AG, the three (3) pictures are all of the boss/bore: 1st is what it looked like after I chiseled out the seal (with nicks on the flat surface facing straight down); 2nd is after a little careful filing with a hobby file to take off any sharp edges from said nicks; third is with the seal...
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    GM 4L80E Filter Replacement - In Middle of Job

    Great advice Gentlement! I took it all to heart and removed the old seal and will use the new gasket. I carefully used the chisel method described above and it came out, but I managed to put a few nicks on the front of the boss (not inside). It need a real careful touch, which I do not quite...
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    GM 4L80E Filter Replacement - In Middle of Job

    Happy Friday Gentlemen, I'm in the middle of replacing the tranny filter and fluid in my 1999 C2500 2WD Longbed w/ 10.5 HD rear, which hauls a sizable Lance Camper, ie, not a daily driver. It has a 152K and I bought it from the original owner (still in contact) and he doesn't remember if he ever...
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    Riggs - My 2000 Chevy 3500 4x4 CCLB work truck and family play machine

    I think you got a good deal! I'm in Oregon too and paid $4,000 for my 152K 1999 C2500 longbed, but single cab, 2WD, and only a 350. What's great out here is there's never any rust with a well-kept vehicle. You can do the rear camera stereo setup yourself (fairly easy), but use locking/torx...
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    4L80 Transmission Temporarily Overheating

    Very good advice Schurkey! I'm printing out your post as a to do list. I love this: "because unlike many folks, you might actually need that stuff." Hilarious! P
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    4L80 Transmission Temporarily Overheating

    Lol, yes, of course! Typo. I need a copy editor for my long-winded posts. It bears repeating that the folks on this site are REALLY helpful and considerate. Beyond anything I've seen (I have several posts already). P
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    4L80 Transmission Temporarily Overheating

    HWB, they are trucks donated to the Western Antique Airplane and Automotive Museum (WAAAM) in Hood River, where I volunteer several times a month. Some of these trucks may be taken inside eventually and made to run, others may just sit. We have alot of vehicles. I give people rides in old...
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    4L80 Transmission Temporarily Overheating

    Thank you gentlemen for all of your considered thoughts. Several of you have put significant time into your responses, which is really astounding. I owe each of you an Oregon IPA if you're drinking guys! To expand and clarify a bit: I have the 3.73 gears, and yes, I was talking about gear 3...
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    4L80 Transmission Temporarily Overheating

    Two questions, the first I know will lead to some deserved scolding. Apologies if this is too long a post. My somewhat-new-to-me truck is a 1999 Chevy C2500 Classic, 2wd, Longbed 350, 10.5 Corp Axle, 4L80 trans with its stock cooler hauling a heavy Lance truck camper. I’ve put 3,000 miles...
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    "Insert cool Thread name" My 1993 Chevy Blazer

    Good luck Brando! I'd bet money you make it home just fine. P
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    I'm in love with my 90 2500

    Nice truck! I'm in Oregon as well and have a '99 C2500 Classic long bed in the same exact trim with the same wheels. I use it to haul a 3500 lb. Lance Camper and it does very well. I am impressed with the series as well. P
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    Can the 120 amp optional alternator drop right in if you have the 105 amp standard?

    Hey Nitro, how long have you had the Powermaster? Did it require any mods to install. Love that it is USA made. P
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    1999 C2500 Windshield Wipers Not Going Down Far Enough At Rest

    Hey Matt and Dariusz, you guys are the best! Thanks so much for the suggestion, which I implemented today on a rare afternoon in Portland November without rain. I simply covered the screw with Flex Tape, which has served me well on my El Camino. It stops water flat out! It's funny, as that...
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