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    1993 C2500 Suburban 454

    Forgive the info that I know GMT400 owners already know. I'm cross-posting to a few forums I'm on. Best to email since I'm not on here much. [email protected]. This truck has more new parts than any sane person should ever drop into a vehicle that isn't some sort of show car. And there's...
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    Delphi TBI distributor discontinued(?). What's next best option?

    I've been trying to source a Delphi CZ20001 for my 93 Suburban 2500 (454) for a couple of weeks now. Every place I try cancels the order. I finally called Delphi and they said it's no longer available and don't have a replacement option. All the aftermarket options out there have horrible...
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    WTB: Clean rear bumper for Suburban in SoCal

    Looking for a clean rear bumper for the Burb. Scuffs in plastic OK, but needs to have good chrome, no dings or bends, and no rust showing on the outward face (surface rust on inside no big deal). Bumpers from Suburban, Tahoe, Yukon, or Blazer should all swap. I'm located in North County San...
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    6-7 BTDC ok for TBI 454?

    All - In my never-ending quest for just a smidge more power and maybe better MPG, too, I started playing with timing yesterday. I went from the stock 4 degrees BTDC to somewhere around 6-7. She seems a bit more perky all-around, definitely a lot less throttle needed to get up and around. I...
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    Canvasback cargo protection for Tahoe/Yukon/Suburban - PLEASE READ CAREFULLY!!

    I'm selling a brand new Canvasback interior cargo cover, grey, that's ALLEGEDLY for a 92-95 Suburban/Tahoe/Yukon. There's a PN on the paperwork inside that says 36345, written in pen. I bought this on eBay a few months ago and just now got around to trying to install it. I'm not sure what...
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    AC charged...Cool, but not cold

    The AC on the Burb is leaving a lot to be desired. Even on high with the recirc on, I'm getting low 60s at best out of the vents. Background, the previous owner had a new compressor put in. Seemed to blow ok cold when I bought it last October, but I didn't use it all that much until temps...
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    Normal operation for aux cooling fan?

    Hi folks - My 1993 Suburban 7.4L has the OEM auxiliary pusher fan installed, and I'm beginning to wonder if it's doing what it's supposed to do. I only hear it run after I get back into the truck after some in-town driving, so your typical stop-n-go stuff that will always have temps creep. I do...
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    C2500 Suburban new front springs installed. Fun new noises!

    This isn't really a 'call for help' as much as it is a spot to write down some notes that may help others... I spent most of this Memorial Day weekend under the Suburban replacing some suspension parts badly in need of replacing. I had already replaced tie rods (inner, outer, sleeve), shocks...
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    93 C2500 Suburban ABS Codes

    Hey all - The ABS light in the Suburban has been coming on for the last month or so. It started as a very intermittent thing, but now it comes on almost every time I drive it. It never comes on immediately upon start-up, but sometimes it comes on not long after I start moving and other times...
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    93 Suburban C2500 brakes are weak, even with Hydroboost

    Quick history: I bought this truck last year and immediately had to have about everything up front replaced. New: hydroboost PS pump, hydroboost unit, master cylinder, calipers, front soft lines, all lines to/from hydroboost unit, and pads. I left the rotors because they looked in good shape...
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    Tbi 454 mpg...Is this as good as it gets?

    So, I bought my 1993 C2500 Suburban last October and have been going through the whole truck. It has 147K miles and runs great, but the mileage STINKS! Today's fillup was best so far, but still just under 11 mpg. This was on a tank where the driving was predominately freeway at 65-70. I drive it...
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    Aftermarket headlight install...why replace the bracket?

    Just got my clear Anzos in today. Truck is in the shop getting some transmission work, so I can't install them right now, but I'm curious... Every install I see for aftermarket headlights calls to remove the grille and replace the whole bracket. Why? Why not just remove the long 5mm screws from...
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    Slip yoke clunk 93 C2500 Suburban

    I'm getting a clunk in the driveline that I'm 90% sure is the (apparently infamous) GM slip yoke clunk. The noise comes when coming to a stop, when I lift off the brake, and when I accelerate. It doesn't occur if you shift into neutral when coming to a stop. The sound is very similar in tone to...
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    454 serpentine belt not aligned to water pump pulley

    Hey all - I THINK I have an issue on the Burb. The serpentine belt is lined up awkwardly on the water pump pulley. It's lined up so far back on the pulley (towards the engine) that about 1/16" or so is actually hanging off the pulley. Timeline: Previous owner replaced water pump sometime in...
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    Pointers for installing a Keyless entry system on a 1993 Suburban

    Hey all - I installed a Bulldog Security KE1702 keyless entry system on my 1993 C2500 Suburban today. It's pretty easy, so I didn't take a ton of pics to make a full-on 'how to', but I thought these notes might help: The system I installed...
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    Newb Suburban questions

    So, I just bought my 1993 C2500 Suburban, and I've come across a few things I'm almost too embarrassed to ask, but I cannot figure out. Help the newb.... 1. My truck doesn't have the barn-door style rear doors. It has the 2-piece setup where the glass flips up and the tailgate flips down. Is...
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    1993 C2500 Suburban 454 upper radiator hose routing / protection

    Hey all - I just bought the Suburban in my sig. The previous owner replaced the water pump, hoses, and radiator, but something on the upper hose has me concerned. The hose is very floppy and basically just rests on the body of the belt tensioner. This doesn't seem right. The upper shroud has a...
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    Transmission service - Yes or No?

    Hey all - Just picked up my new-to-me 1993 C2500 Suburban and am curious what the conventional wisdom is on servicing the transmission. It has a 454 and 4L80E with 145K miles on it and shifts very very well. The 1/2 is a bit firm when cold but everything else is butter. The fluid is kinda more...
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    New guy from San Diego (Poway)

    Hey all - Been lurking for a couple of weeks, but it's come to sign up so here goes! I just bought a 1993 C2500 Suburban (Silverado trim) w/ a 454. It's a bit of sentimental purchase for me since my dad had a 1993 K1500 Suburban growing up. I had been planning on picking up a square body...

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