Recent content by 1998crewcab

  1. 1998crewcab

    1998 k2500 454 getting hot

    Have you tried pulling out thermostat Yes it will take a bit longer to warm up But you will see if it keeps gauge from moving around during stops and when driving
  2. 1998crewcab

    1998 k2500 454 getting hot

    Not all thermostats are the same High flow ac delco on top original type replacement gm ac delco on bottom High flow pump push around 20 percent more coolant, like having your truck rev 20 percent faster i don't dog my truck so having cavitation problems at 8000 rpm is not an issue ...
  3. 1998crewcab

    1998 k2500 454 getting hot

    The high flow water pump and thermo worked wonders for my truck I went through same with original water pump and thermostat Changed it out to higher flow system Truck is much happier After installing OEM parts and same results/ problems where it would creep at stop lights Actually, once...
  4. 1998crewcab

    1998 k2500 454 getting hot

    I also use this to fill radiator With coolant It burps all air out the first time
  5. 1998crewcab

    1998 k2500 454 getting hot

    I run a high flow water pump Flowkooler with a high flow thermostat With stock temp Truck used to come to stop light and do what your truck did But never over heated Now it runs and needle never moves once it warmes up Even on the hottest days it’s same temp as coldest Glad I used the high...
  6. 1998crewcab

    Vortec 454 trouble....

    50 PSI sounds low before you start chasing ghosts spray some starter fluid into intake throttle body Not too much and see if she fires up I use Delphi pressure regulators also if you are back there replacing regulator replaced the Oil Pressure switch (it also controls fuel pump )
  7. 1998crewcab

    Water Pump Relacement

    here is 5% off Rockauto add code to how did you hear about us when checking out where payment info goes valid till Jan 1 , 2021 156347700143227696
  8. 1998crewcab

    1994 chevy rcsb AC hi pressure line seized in both ends. What to do?

    Heat that nut up , penetrating oil then heat it again and put your wrench to it when it stops turning, remove wrench and heat up again and turn some more as it cools the aluminum nut will shrink
  9. 1998crewcab

    1994 chevy rcsb AC hi pressure line seized in both ends. What to do?

    to prevent galling in the future , I use it on o-rings and threads and mating surface just a drop on mating surface and a couple on threads, Nylog blue gasket and thread sealant made for refrigeration work every thing will assemble sooooo smoothly and more important, come apart in the future...
  10. 1998crewcab

    Crank No Start

    And while cap is off you can watch rotor turn while cranking With key off you can turn rotor maybe 1/4 inch Someone correct me if I am wrong It should look like it’s riding up the gear a bit Hard to explain but you have to do a couple of good ones to feel a bad one with worn gear.
  11. 1998crewcab

    Crank No Start

    Check your distributor pickup coil for Hall effect in Ac mode with multimeter for proper voltage while cranking You get fuel pressure for a short time (normal) them no pressure cause computer does not see pulses from distributor Hence no spark Easy to check before throwing parts at it. Check...
  12. 1998crewcab

    AC System Differences

    Unfortunately with the swap everything is possible Always start diagnostics with the basics Power and grounds Then you can move forward with confidence Compressors have stupid grounds locations that don’t like to be messed with as the harness ages. Diode is suspect weak point If you tug on...
  13. 1998crewcab

    AC System Differences

    you could check to make sure your AC relay is getting power Then measure voltage at compressor If you see 12 volts on one leg Then you have a ground issue With Ac system on . before tearing back into it Get some gauges to see where you are as far as pressure I don’t think it leaked per your...
  14. 1998crewcab

    Ac system advice anyone?

    What color is your compressor ? I believe this is true from what I have seen AC Delco “black” ones are rebuilt units Natural aluminum units from ac delco are new.
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