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  1. C10MixMaster

    90 r1500 subruban acting up.... Help

    yes a map sensor or vacuum line to will kill any drive ability. i would expect a code from a bad map though
  2. C10MixMaster

    Erratic Carb at idle

    you can take a squirt bottle with water to find vacuum leaks. spray down anything you suspect leaks hoses manifold carb base etc. then you hit a leak you can here it and the idle will change. that's also a good way to check plug wires. spray then with a mist if there bad they will spark n...
  3. C10MixMaster

    90 r1500 subruban acting up.... Help

    were the plugs wett when you replaced them ? if so you might have a weak spark and an ignition problem. if not then you have a fuel ratio problem. your injectors may be spraying but not enough. a fuel filter is cheep and easy and may cure this (from experience). If you can check the pressure...
  4. C10MixMaster

    90 r1500 subruban acting up.... Help

    changed plugs and now its running worse.. first recheck you plug wires did you cross a set? factory plugs or racing plugs? go back to factory style plugs if there not. now the original problem no power. check your fuel pressure. the pumps a week to begin with and regulators are...
  5. C10MixMaster

    Coolant out overflow

    the coolant level is about 2-1/2 inches from the bottom cold. if your 4 from the top cold your probably over filled
  6. C10MixMaster

    Steering wheel new, older, newer than original

    That's what i put in mine. its a direct bolt in no adapter needed.
  7. C10MixMaster

    Oil Pressure Question

    low oil pressure is a sign of excess clearance in the bearings or the pressure relief valve hanging open in the pump. If its the pressure relief valve a new pump will fix it. If its clearance issues a high volume pump or heavier weight oil might buy you time. also bumping your idle up can help...
  8. C10MixMaster

    Single wire temperature sensor versus two wire sensor

    COOLANT TEMPERATURE GAUGE PARAMETERS For Truck Years: 1967 - 1973 The Temp Gauge Needle Should Point to: Left Line (Cold) when sender resistance = 350 Ω Middle Line when sender resistance = 76 Ω Right Line (Hot) when sender resistance = 51 Ω For Truck Years: 1974 - 1978...
  9. C10MixMaster

    Bad vacuum module?

    When you tightened the transmission housing you crushed the pump because it was in the wrong position.. it worked for about a day before it completely fail basicaly out of dumb luck. sorry your going to have to pull this transmission there is no easy fix
  10. C10MixMaster

    What have you done to your square lately??

    Good to know. Would be nice if the big oil companies would do the same . it would be nice to go to your local auto parts store and get Vintage motor oil.
  11. C10MixMaster

    What have you done to your square lately??

    i dont think i would worry about draining it. Unless it makes you feel better. Our trucks came with SE oil in them and oil has changed alot in 40 years. SN oil is missing the zinc that kept our cams from flattening. Diesel oil is suppose to has at least some zinc in it. Many diesel oils are...
  12. C10MixMaster

    Exhaust Manifolds

    orileys Dorman OE Solutions Exhaust Manifold Part #: 674-202 Part #: 674-197
  13. C10MixMaster

    What have you done to your square lately??

    finally took a few pics of my truck
  14. C10MixMaster

    Need help with a TH350 problem

    my best guess is low reverse roller clutch has failed. that will require a rebuild. in low and reverse the low reverse clutch engages. in drive it uses the roller clutch to engage.
  15. C10MixMaster

    What does a automotive thermostat do?

    carbureted 180 , fuel injected 195 , that's what the factory specs usually.
  16. C10MixMaster

    bad injectors?

    switched to a carburetor. How are you getting fuel to the new carb? are you getting fuel to the carb? the fuel pressure from the original in tank pump is to high for a carb and needs a regulator. A quick check for fuel in the carb is to operate the throttle lever while looking in the carb...
  17. C10MixMaster

    Time for a new radiator

    sounds good might take you up on that some day
  18. C10MixMaster

    Time for a new radiator

    you basically got. but if the engine wants to overheat there is an issue with the radiator or air flow..
  19. C10MixMaster

    5.3 or 6.0 ?

    i think a donor truck is the way to go. That way you know you got everything you need. including the transmission. But it depend on whats available to you at the time. 5.3 are easier to find and cheaper. 6.0 well there no substitute for cubic inches . I believe they're the same size. I'm...
  20. C10MixMaster

    Time for a new radiator

    wish i had a nickle for every expert video on the internet that didnt know what they are talking about lol. This is just auto shop 101. I recommend grabbing your high school shop book and read what it says on thermostats. cut copy and pasted from wikipedia Perhaps the most common example...
  21. C10MixMaster

    Time for a new radiator

    if you cooling system is working correctly you engine will NOT overheat. and the thermostat will maintain a constant temp. not just the minimum. If your running a 180 tstat and your engine is at 220 you have a problem. not just the engine WANTS to overheat.
  22. C10MixMaster

    Time for a new radiator

    Sorry but wrong. a thermostat will maintain the temp of an engine within a narrow range +/- 5-10 deg. once it heats up it is not fully open it will open or close more or less to maintain a constant temp.. If it doesnt the rest of the cooling system is not keeping up with your engine.
  23. C10MixMaster

    C10 power steering lines

    yes those are miss matched try a hose from a later truck
  24. C10MixMaster

    C10 power steering lines

    those are both flare fittings so no orings. does the steering box have the inverted part of the flare?
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