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  1. 91babyblue

    Dynomax universal ultra flow 17519

    I’ll look into that one. 17233. Thx.
  2. 91babyblue

    Dynomax universal ultra flow 17519

    I’m exited to install it. Thx.
  3. 91babyblue

    Dynomax universal ultra flow 17519

    green at this exhaust thing. You guys are good at this 1000 times over. I got 1991 gmc 5.7. Can I put Dynomax ultra flow muffler 17519 on my stock exhaust with cat still on?. I will there Be issues with dash engine lights?.. and how about the sound?. I know it’s...
  4. 91babyblue

    Knocking

    Good luck.
  5. 91babyblue

    Knocking

    They just magnet on there. Keeps oil warm. I was going to try. I kniw mg engine ran king all 3 years I had it ,but just noticed this winter thag strange noise
  6. 91babyblue

    Knocking

    They s add re just magnet on there
  7. 91babyblue

    Knocking

    Just in case. Borrow an oil pan heater. Might do the same job as a block heater. Not sure. I was going to try that when I get one.
  8. 91babyblue

    Knocking

    I hear that sound on both sides though. Up front on drivers side. And on passengers side kind of in back. ?? Wanted to clarify. But when I plug it in. No sound. Cold engine.
  9. 91babyblue

    Knocking

    Long story. I will be waiting till summer temperatures. And see if that knock is still there . My two bits.
  10. 91babyblue

    Knocking

    Mine does the exact same thing. I got 1991 350 with 150000 km. It does exact same. Thag deep inside thing. I run 10/30 regular. I did switch to 5/30 regular oil. I don’t drive it on winter. Truck in nice shape. It’s parked in garage. I start it sometimes in...
  11. 91babyblue

    Engine sound cold

    Thx for reply yes. Only thing now. When I plug it in and block is warm it doesn’t n m she that churning sound . Would plugging truck block heater prevent torque converter sound?
  12. 91babyblue

    Engine sound cold

  13. 91babyblue

    Engine sound cold

  14. 91babyblue

    Engine sound cold

    Hi. Regarding my question. I know you a pro. Seen you in here often. I removed belt still same sound . I plugged it in for 4 hours. It is -15 or so at least in garage. nO SoUND. Seems to stifle that sound up when plugged just like a semi warm engine. What is your view...
  15. 91babyblue

    Engine knocks when ambient temps around freezing or below

    Almost like rubbing sound When cold uou hear it Gor 4 minutes at high idle cold. Then sound deadens off. Thx for response.
  16. 91babyblue

    Engine knocks when ambient temps around freezing or below

    Oh. Would piston slap sound like a churning sound It’s hard yo describe. Today while it was super warm idling , that sound came back lightly for 10 seconds. , but very slightly ?
  17. 91babyblue

    Engine sound cold

    What’s AIC??? Sorry
  18. 91babyblue

    Engine sound cold

    Thx for that. It’s sounds churning Can hear from both sides in middle of engine. Closer to the back. The trans pump ?? It could be too. I will remove belt Anx see if sound comes. I appreciate much on this site.
  19. 91babyblue

    Engine sound cold

    I got 155ooo km. It’s a 1991.
  20. 91babyblue

    Engine sound cold

    O degrees in garage. 5.7 litre. When I start it cold ,after 30 seconds , I hear a low grind sound . Both sides I hear it. So I figure it’s in middle of engine. I’d record it but it’s not loud enough to hear. As engine is turning , it’s like a churning sound .. hard to...
  21. 91babyblue

    Engine knocks when ambient temps around freezing or below

    I get knock type noise. It gets it on both sides of motor??? When cold start. Even in just cold winter garage. When I plug it in for a while it dies less of the sound. Goes away quicker
  22. 91babyblue

    Engine knocks when ambient temps around freezing or below

    I was thinking of doing that. I had a noise around the top part lifters passenger side was rumbling away. Groaning sound. more on passeger side. Haven’t started it in a couple weeks. Only 32 degrees outside. I have 10/30 oil. Was thinking of Lucas.
  23. 91babyblue

    15x8 wheels?

    nice!!
  24. 91babyblue

    225 inch tires on obs

    just want opinion on this . do some people run this smaller tire on a 2wd. or is this size too small. I seen that some did come with this size. the smaller tire look
  25. 91babyblue

    Trans filter oil seal delimma

    Thx for that yes. Now I know about that. Thx

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