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  1. mibars

    Passing CA Smog help - High HCs

    I wonder if a cat converter is N/A for this model year and "heavy duty" would putting any cat converter in fail the test? Because this sounds like a simplest solution to get the HC down. I'm running high flow Magnaflow cats in all my past and present Japanese cars to get rid of the smell and...
  2. mibars

    AmCar Tuesdays / Amcarowe Wtorki (Warsaw, Poland)

    Some more
  3. mibars

    AmCar Tuesdays / Amcarowe Wtorki (Warsaw, Poland)

    Few fresh ones from the Amcar "Tuesday" on Thursday :)
  4. mibars

    1990 Suburban oil pressure gauge only reads 30 PSI

    I didn't use any additional thread sealer other than a tiny amount of blue stuff that came on the threads of a new unit. I did remove my sending unit and checked it with air compressor, finding out it's quite inaccurate especially in low pressure region and more likely calibrated to 0-90 PSI...
  5. mibars

    Cruise control works for a while then starts to lose speed

    A new issue surfaced: I had a sudden acceleration from cruise control, so I decided to finally investigate the servo. Based on this Youtube video slowing down like I had before is usually a case of a dirty release valve. I suspected that acceleration could be caused by dirt in a vacuum valve...
  6. mibars

    Seatbelt construction & repair (with pictures)

    The whole seatbelt with child seat lock removed and without that plastic tube:
  7. mibars

    Seatbelt construction & repair (with pictures)

    My right middle row seatbelt in 1990 Burb was not retracting due to rusted parts. I didn’t find much details online so I used this occasion to look inside and document it for whoever may need in the future. The cover can be removed by unclipping bottom part which swings open and then by yanking...
  8. mibars

    European 86 C20 454

    Nice, I was considering R2500 burb but was scared away not knowing how to register it as a 'car' (Bit of context for US friends: 3500 kg is a magical number in Europe which divides light and heavy vehicles, a 'truck' needs a different driving license, speed limiters, different road tolls...
  9. mibars

    European 86 C20 454

    Hi, and welcome, really nice Burb! As this is 454 C20 I guess it's (or was originally) 8500 lbs GVWR, is it registerd as a car?
  10. mibars

    Oil pressure sending unit - odd readings (test results)

    Hi, Ever since I've replaced my oil pressure sending unit I get low oil pressure readings, about 15 PSI most of the time. I'm using Standard Motors PS-262 sensor. https://www.rockauto.com/en/moreinfo.php?pk=44314&cc=1301465&pt=4588&jsn=16 When cold or at high RPM it may show about 20 maybe 25...
  11. mibars

    1990 Suburban oil pressure gauge only reads 30 PSI

    I bought my Burb with an oil pressure gauge basically stuck at 30 PSI. Disconnected oil pressure sender - Maxed out, indicating bad oil pressure sending unit. Reconnected - Back to 30 PSI. To make sure I also checked the gauge, it behaves as it should when tested outside. So I replaced the...
  12. mibars

    Loss of e-brake after driving on rough roads

    Finally got a moment to go through rear brakes. My driver side drum is missing a C-clip that holds the parking brake lever pin in place. It has disassembled itself without it. Found the washer, but C-clip is gone. Can somebody help me with identifying what size of a C-clip is used there? I...
  13. mibars

    "Overheating" --> Now Fuel Delivery Issue --> Dirty Tank?

    Post removed. Wrote a post and realized it made no sense: Vapor created between fuel pump and carb would be simply vented into the carb, allowing fresh cool gas to be pumped.
  14. mibars

    "Overheating" --> Now Fuel Delivery Issue --> Dirty Tank?

    Looks like a fuel delivery problem, not overheating.
  15. mibars

    1985 C10 Door Mirrors

    I have similar spot mirrors, but I bought too small ones, 2". When searching for larger ones I found that you can buy actual aspherical mirror glass for square body.
  16. mibars

    1985 C10 Door Mirrors

    Bumping the old thread as I want to replace the driver side flat and passenger side barely spherical mirror with 2x aspherical so that I can finally see cars that I'm cutting off when changing lanes :) The glass is held with an adhesive? What's the correct way of removing it without breaking...
  17. mibars

    Oil gauge issue

    I wonder what's the best spot to tap a 2nd pressure sensor? On a filter base? Or any other spot?
  18. mibars

    34 inch tirers speedometer reading

    https://www.gmsquarebody.com/threads/speedometer-adjustments.22566/ EDIT: Looks like that linked page is no longer working.
  19. mibars

    Truck Size

    Every segment of vehicles has grown up. Even small city cars like Fiat 500 or a Mini are huge compared to the generations from 50 years ago. But in Europe a square body Chevy is still huge compared to other vehicles, being the size of a van, not a car. In 1st picture I believe we see a RWD...
  20. mibars

    Engine died when driving and won't start - Coil melted

    Yup. Ignition module, that was it. Purrs like a sewing machine. Whatever died first & fried the other, a coil or a module will remain a mystery. But I suspect a no-name module as a source of that drama. A part number G462 suggests that's a MasterPro brand. Also had a reading on a GMT400 forum...
  21. mibars

    Engine died when driving and won't start - Coil melted

    Got lucky and found some private seller selling AC Delco D1943A :) If that won't fix the issue I'll keep diagnosing and throwing parts until it does :D
  22. mibars

    Engine died when driving and won't start - Coil melted

    I find that there are couple of identical looking modules, same pins, etc. with different part numbers, D1960A (the one that I can buy), D1984A, D1943A. For now I found that the D1984A and D1943A are usually listed as identical and interchangeable, but D1960A seems to be used with V6. I even...
  23. mibars

    Engine died when driving and won't start - Coil melted

    Yes, it does. 12.1 V on pink wire with coil disconnected (power to the coil good, although no load) The moment I plug it back to the coil some stuff clicks, I believe injectors fire once, but no spark on a spark plug connected directly to the coil output wire (laying on mainfolf for grounding)...
  24. mibars

    Engine died when driving and won't start - Coil melted

    Coil replaced, still no start... Coil tested 12 kOhm on secondary, bit higher than 8.1 kOhm on the onethat I took out and close to 1 ohm on primary. I don't have a comparison of primary coil as this is what's blown in my old one. Injectors are spraying, I can smell gas. I put a spark plug into...
  25. mibars

    Engine died when driving and won't start - Coil melted

    I agree, but that's what they had locally in Poland. Without it I can't even park my Burb back into garage to work on it, got it towed home, but no way to push it uphill to the garage.. BTW a sight of a VW Passat towing a Suburban through the forest must have been an interesting sight for...

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