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  1. M

    Smog Fail and Code 42

    95 K1500 5.7L TBI... no codes no check engine light up until yesterday when we went to smog the truck to renew reg. They failed smog for timing being advanced 8*. On the way home check engine light came on. Scanned it with my OBD1 scanner and got a code 42 for timing control circuit fault. My...
  2. M

    95 K1500 5.7 - Speedo, Tacho, Odometer, PRNDL, Shifts Weird - VSS?

    I'm assuming issue is vehicle speed sensor at the transmission output? My mother's Honda had the same issue and replacing that fixed the problem. It's not my truck anymore I sold it to my ex but I'm going to be fixing it. Is it safe to drive even though the tranny shifts weird with a dead speed...
  3. M

    What gets wet to cause engine to die

    Was doing some mild off-roading today and drove through a decent puddle at a reasonable speed and tons of water splashed everywhere and the engine sputtered to a halt. Obviously it didn't suck in water through the intake, but something electronic got too wet. Trying to restart it resulted in a...
  4. M

    95 K1500 Silverado Tire and Wheel Upgrade

    Currently my stock K1500 is riding on a worn out set of Fuzion 265/75R16 tires the previous owner installed about 2 years ago on the stock wheels. I am thinking of buying 17" stock wheels from a GMT900 truck/SUV to upgrade the look of my truck for cheap. A tire place will give me a free set of...
  5. M

    Differentials.. 75w-90 vs 75w-110

    I want to switch to AMSOIL Severe Gear in both the front and rear diffs. I don't tow or haul with my truck frequently, but I might be installing a camper shell and heavy toolbox, and I might tow (rarely) in the future. It seems like the ideal solution would be 75w-90 in the front diff and...
  6. M

    Long Bed Camper Shell - Bay Area

    Looking to purchase a camper shell/truck topper for my 8ft bed GMT400. White preferred but any color is OK. Not looking for a brand new crazy expensive thing but also not a leaky beat up thing if that makes sense :) Budget is flexible, let's talk. I'm happy to drive any reasonable distance to...
  7. M

    Steering Shaft?

    Me again, another GMT400, another sloppy steering situation. Gearbox was replaced a little over a year ago, I have the receipt from the previous owner. I have to do some testing but I suspect the shaft is the problem, not the box. If I grab the shaft from under the hood and turn it, it goes...
  8. M

    How hard will this be to fix?

    Had a little incident with a dumpster. Best/cheapest/fastest/easiest/most creative solutions?
  9. M

    GMT400 Suburban 1500 Fuel Pump Access Hole

    I've seen a LOT of people do this but some online searches don't show measurements where the cut the hole and how big. I did find measurements for a few of the GMT800 Suburbans but none for the GMT400s. I might just have to guess based on other photos, drill a little hole, and look in it, but...
  10. M

    $25/Trade Oil Filters (SF Bay Area Local Pickup Only)

    I have a lot of filters that I want to get rid of. Local pickup only, San Rafael, CA. $25 cash for ALL of them or TRADE for a Camaro door chime so I don't have listen to BZZZZZZZ anymore in my Suburban. 3x MicroGard MGL51036 that fit most K1500 gas engines and many other applications. 2x Wix...
  11. M

    Vortec 5.7 fuel trims positive, running rich, fuel pressure issue?

    97 SUburban 5.7, 214k miles, running pretty rich (but NO codes), fuel trims are very much positive. LTFT is 20-25% on both banks. Even if I reset the codes it goes back to that almost right away. I have tested it for vacuum leaks and took it to the shop and they found no vacuum leaks either and...
  12. M

    What to replace 4L60E with?

    ok, so, i posted before about trans trouble in my 97 suburban k1500. since the issue really only happened if i drove a long highway trip and would go away if i pulled over and reset the check engine light i decided not to fix it. but the way i drive this truck, i'm sure i'm not going to get...
  13. M

    Wheel Spacers

    I have a little bit of rub in parking lots since I went from 245 size to 265 size tires on my Suburban. In the far future I want a 3" body lift but for now would wheel spacers help? Looks like 1.5" is $90 and 2" is $100...
  14. M

    Electrical Issue - Weak Cranking, Flickering

    Every time I start the truck, the lights get very dim, it cranks really weak, as if the battery is almost dead. Whether it's the first start in the morning, or it's been driving all day and is still hot, doesn't make a difference. But the battery is only a few months old and tests good and it's...
  15. M

    97 4L60E ~ 213K Miles: Sudden P1870, Harsh shift from 1-2

    Truck has been driving perfectly, no issues, the other night I drove 2+ hrs just fine. Today, about 30 miles into a journey I get stuck in traffic, and it starts shifting hard. P1870: "Transmission Component Slipping" soon followed. Got to my destination, checked tranny fluid level (OK), went...
  16. M

    97 Burb K1500 Steering Effort Issue

    During regular driving and parking, the steering seems to require more effort than I would expect, however right before full lock, steering effort suddenly gets way easier, like I would expect it to be at all times. This isn't the end of the world but it's different behavior than from any other...
  17. M

    97 GM Drive Cycle?

    I've read about the drive cycle online, yet my Suburban refuses to set catalytic converter monitor and o2 sensor heater monitor. I've driven like 100mi across two different days! I thought my cats were dead but so far no codes or anything so they might be OK. I'm under the impression here in...
  18. M

    Are my Cats dead?

    Looking at this, I think they are... the vehicle wasn't fully warmed up but had been running for a while. It hasn't been driven a long distance for years so I think I have to take it on a long highway run to find out for sure but this looks pretty bad. Thanks in advance. 97 Burb 5.7 over 200K...
  19. M

    Denso 4511 Platinum TT Spark Plugs in Vortec 5.7?

    I would usually not use Denso plugs in a GM (usually my rule of thumb is ACDelco when possible or NGK in a pinch) but I have eight brand new Denso plugs floating around and saving money is always good. Currently the vehicle has 7x Bosch Iridiums and 1x NGK Platinum. Don't ask, don't tell :P Do...
  20. M

    Vortec 5.7 Misfire Cyl 8 (P0308) Help

    Hi y'all, hoping for some help on my 97 Suburban I just picked up for really cheap. It has about 210k miles. I'd consider the misfire a "hard miss" in that it's very obvious, the vehicle shakes noticeably at idle and generally doesn't run great. That said, I was able to drive it a short distance...
  21. M

    92 C1500 Steering Wheel Options

    I love this truck but I miss the much nicer 95+ interior. Biggest annoyance is this AWFUL steering wheel that just isn't comfortable for longer drives. Any suggestions? O'Reilly sells those aftermarket steering wheels with install kit/adapters, but they aren't exactly cheap. Anybody here tried...
  22. M

    r12 to r134a and new AC compressor

    The AC works in my 92 but I feel like it could be colder, the compressor really seems to drag on the engine, and the clutch likes to click on and off very rapidly. I'm hoping to get all the parts I need together and take it to the shop and have them overhaul the system, check for leaks, and do...
  23. M

    My TBI E-Fan Adventure

    I'm in the process of replacing my traditional clutch fan with an electric fan setup in my 92 305TBI. I've heard that I can gain about 5-10HP and 1-2MPG, faster warm up times, better throttle response. and better AC at idle which is why I'm doing it. My setup is using two 14" Hayden 3690 fans...
  24. M

    Smashed rear window

    Yup, I'm an idiot. Was removing the ladder rack from my truck and managed to completely break the rear window. So... Now what? Watch a bunch of YouTube videos and hit up the junkyard? I'm considering at least temporarily just using a piece of plywood, because I actually have one that's a good...
  25. M

    Brake light on, 92 C1500 5.0L

    Does this mean I have an ABS code, or something else? I know for sure the parking brake is not engaged because the truck crawls forward idle in drive, and the brake fluid is not low (dirty for sure, but definitely to the proper level)... Thanks!

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