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  1. 1998_K1500_Sub

    Cooling System Upgrade/Replacement

    I looked at the pictures; it appears to be a plastic tank, yes? Where are the remains of that fitting now? In the tank, or did you find them in the hose? What caused the fitting to break? The worm-drive clamp fractured the plastic into pieces? :think:
  2. 1998_K1500_Sub

    AC Clutch doesn’t disengage

    Can you provide more details? At idle it may not cycle, particularly if your c1500 is a Suburban and/or the AC system's under load (it's warm outside / humidity is high). At higher engine rpm / higher compressor rpm, it should cycle, under the right conditions. The best way to debug this...
  3. 1998_K1500_Sub

    P1870, 4L60E, PWM delete etc.

    Can the "PWM delete" be effected with a "tune" to the ECU? The ECU controls this behavior, so it would seem possible / likely. I would much rather do this on the computer than on my back. I haven't looked at the transmission parameters for the ECU on my '98 for this parameter, yet; this...
  4. 1998_K1500_Sub

    Furnace time delay relay for AC staging

    I will say, this device has a number of things going for it: - it's potted and weather resistant, so that objective is met - connections are simple push-on AMP Faston tabs, although you could likely solder to them (with care) - it's natively 12Vdc - the delay values are usable There are...
  5. 1998_K1500_Sub

    Furnace time delay relay for AC staging

    Considering it’s for an RV application, where “12V” likely means the same as it does in other vehicular applications, I think you have a winner. Check the current and other specs on that Nexem relay, that’s where the business happens. I suspect you already know all this :cool:
  6. 1998_K1500_Sub

    Furnace time delay relay for AC staging

    This really isn't a furnace question, it's a component question. The component in this case is delay relay that has applications in furnace control and possibly other areas. It may be one of a family of similar components that have different delay characteristics, i.e., other than 4s/2min. I...
  7. 1998_K1500_Sub

    1997 Suburban dual AC question

    If there is a "next time" it will take you a fraction of the time. After the 2nd or 3rd time, you'll get better. You'll have all the tools / fittings you need by then and you'll have your procedures ironed-out and better committed to memory. Charging with liquid is a whole lot faster and...
  8. 1998_K1500_Sub

    Passenger Airbag Switch?

    On my 1998 Suburban I don't have one of those... at least, I have no recollection of one, maybe I should go look. Did they only include them on trucks w/ passenger airbag that had no 2nd / 3rd row? Baby would have to ride shotgun, so must turn off the airbig.
  9. 1998_K1500_Sub

    88-94 5.7 Suburban A/C Diagnosis and Tuning

    I'll assume, since they're variable displacement, they won't cycle nearly as much. There are stand-alone "delay relay" devices that might do the job for you. I was pretty sure you had given it some thought :waytogo:
  10. 1998_K1500_Sub

    88-94 5.7 Suburban A/C Diagnosis and Tuning

    Looking at the mounting method, with the concentric collars between the front and rear of the AL bracket, I'm thinking the forces will be managed by the bosses on both sides (F&R) of that bracket, which is good. This assumes the collars are tightly fit (few .001 between ID and OD). Notice too...
  11. 1998_K1500_Sub

    Code 44 only during long climbs to mountains

    I would be interested to know if you were running in power enrichment (PE) mode during those long climbs. The engine would be (should be) running rich whenever PE is enabled, by intent. IIRC, PE doesn't come into pay on a stock, OE tune unless the TPS is pretty "open", e.g., above 80% or 90%...
  12. 1998_K1500_Sub

    88-94 5.7 Suburban A/C Diagnosis and Tuning

    Are you planning to transport frozen meat with that rig??? Do tell! What compressors are those? Planning to engage the compressors simultaneously, or insert a short delay between them so as to manage the start-up load? It looks like you’ll have good belt wrap around those pulleys by using...
  13. 1998_K1500_Sub

    4.10 Gears?

    ~2200 RPM is my target for 70MPH in OD. I pick my gear ratios for my vehicles based loosely on that target, particularly the 4L60E vehicles b/c in 3rd the RPMs are still reasonable (~3000RPM at 65MPH) and usable for towing. Above 3500RPM these engines make more fan noise than torque.
  14. 1998_K1500_Sub

    Arteb Headlights / Taillights End-of-Life (?)

    I'm glad to hear it's doing the job. I need to get a decent set of bulbs and wire mine for 4-high.
  15. 1998_K1500_Sub

    Repairing ac system

    It's pretty satisfying when you've done it yourself.
  16. 1998_K1500_Sub

    Arteb Headlights / Taillights End-of-Life (?)

    Serious flooding in parts of Brazil: Carlos' perspective Carlos emailed me today, as part of an ongoing dialog about the floods in southern Brazil. He wrote: I can guarantee you that almost the entire state of Rio Grande do Sul is underwater. It's unbelievable. I believe it is the biggest...
  17. 1998_K1500_Sub

    4.10 Gears?

    I'm assuming that the "70mph" you stated is actual speed; indicated speed might be different. 3.42 gears would give you ~1900 at 70mph on 30s. I can't imagine it would have 3.08 gears, but maybe; it would tach ~1700 at 70mph if so.
  18. 1998_K1500_Sub

    Arteb Headlights / Taillights End-of-Life (?)

    Serious flooding in parts of Brazil: Our supplier Carlos told me today that our Arteb supplier, who resides in Porto Alegre (in the Brazilian state of Rio Grande do Sul), has been affected by the recent flooding that's prevalent in that region. Our supplier's rep said "Product stock warehouse...
  19. 1998_K1500_Sub

    4.10 Gears?

    Agreed ^^^ On 30” tires w/ 4.10 gears you’ll see roughly: - RPM at 70MPH in OD = ~2277, that’s very reasonable - RPM at 65MPH in D = ~3016 (a good range for pulling a trailer) 4.56 gears would increase the RPM numbers above by 10%
  20. 1998_K1500_Sub

    Bad running after manual swap

    I wonder if you're getting some reversion and a bit of air's getting sucked into the exhaust, altering the O2 reading. It's nice to believe that the problems appear to have been put to rest.
  21. 1998_K1500_Sub

    ABS and ignition problems

    Maybe you should be selling the simple stick. It looks like a Shark Tank winner to me
  22. 1998_K1500_Sub

    ABS and ignition problems

    I laughed out loud :) Don’t you hate it when you cause a new problem while trying to fix another. It’s sorta like when lightning strikes; currents can flow in the most bizarre places and ruin things in its path. It’s sounds like you’re on a path to a solution.
  23. 1998_K1500_Sub

    Bad running after manual swap

    An ICM issue makes completes sense. The exact nature of the issue (internal fault; poor external connection; infant mortality) would be nice to know.
  24. 1998_K1500_Sub

    Repairing ac system

    What I would do is - drain the oil from the compressor (the Sanden doc attached gives generic instructions for draining) - measure the amount drained from the compressor - assume 0.5oz will remain in the compressor after draining - add the above two values, that's the total oil charge...
  25. 1998_K1500_Sub

    Bad running after manual swap

    I hope this all works out and you find it's a problem in the dizzy. Is the coil wire making good contact with the center electrode? Sorry for the late reply, I've been out all day and am just getting to reading your remarks.

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