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Type: Posts; User: grumpy old man

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  1. If it was running fine before you changed the...

    If it was running fine before you changed the pump and filter then the chances are that it is somehow related to what you did. As for air bubbles in the fuel line no. There is no way to guess what...
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    What makes you think the flywheel is loose? some...

    What makes you think the flywheel is loose? some kind of noise, if so try to describe it. Normally if the flywheel is loose or cracked it will rattle in neutral but as soon as you put a load against...
  3. Have someone stand on the gas pedal (in neutral)...

    Have someone stand on the gas pedal (in neutral) while you are standing by the exhaust. If there is a restriction the exhaust will sound like it is wheezing. If it is restricted it is not necessarily...
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    Just for the sake of information the way the...

    Just for the sake of information the way the system works is there is a pressure switch just downstream of the cold coil in the big A/C line that returns to the compressor. You will usually find it...
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    vortec 6000 fuel economy

    I am looking at a 2000 2500 4WD crew cab vortec 6000 engine for a work truck. I never buy new trucks because of what I do to them. I am looking at this truck in particular because it has high mileage...
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    Surbeast, I do not know if you ever received the...

    Surbeast, I do not know if you ever received the two messages I sent you in response to your message but if not here goes. I called the LAPD shop I used to run and spoke to a mechanic there that...
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    Have a helper crank the engine when the problem...

    Have a helper crank the engine when the problem occurrs and with a flashlight check to see if you can detect any spray from the injector nozzles. It has been a long time but as memory serves there is...
  8. Thread: help

    by grumpy old man
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    1,212

    If the coolant is not flowing through the...

    If the coolant is not flowing through the radiator (hot on one side cold on the other) there is a "blockage" somewhere. The first thing I would try would be to take out the thermostat and see what it...
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    The fact that it is directional and occurred when...

    The fact that it is directional and occurred when hitting a bump definately sounds like a bad or loose connection somewhere, or a wire that has rubbed through the insulation and shorting out. With...
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    Thanks for all the information, my last encounter...

    Thanks for all the information, my last encounter with 4WD was a jeep that was probably built before most of you had even been born. I acquired this thing because when we bought the mountain home the...
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    Thank you, I did finally figure out the 4WD low,...

    Thank you, I did finally figure out the 4WD low, not sure why but as stated it must be in neutral as it will not shift into low range in park, but I was not sure about the 4 high. That helps a lot...
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    Electronic 4WD

    I have a '99 suburban 4WD and the question is can the truck be shifted into 4WD high on the fly? I did not get an owners manual when I bought it recently so have no information. I asked my local...
  13. Are you sure that you do not have low coolant?...

    Are you sure that you do not have low coolant? Have you checked it running with the cap off to see? Another thing to try would be to drill a small 1/8-3/16 hole in the thermostat body so there is...
  14. 220 degrees is not necessiarily worrysome. 15 lbs...

    220 degrees is not necessiarily worrysome. 15 lbs of pressure on the system and a 50-50 antifreeze mix translates to almost 250 degrees before boil. in the 70's there were GM vehicle's that used a...
  15. Scan software questions. Plug-in OBD-II Engine Scanners.

    I am considering buying scan software for my laptop. This is strictly for personal use so obviously don't need the most expensive unit I can find but don't want a piece of junk either. Anyone out...
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    Up to the 60's and possibly the 70's all british...

    Up to the 60's and possibly the 70's all british vehicles had positive "earth" but anyone that was acquainted with them knows how well their electric systems worked. I was in the business in those...
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    I have on an older truck put on an after market...

    I have on an older truck put on an after market cat and passed Cal emissions. I have never had a tech look under the vehicle to see who made the cat and if I am not mistaken they need to be cal...
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    First place I would check is the fuse panel....

    First place I would check is the fuse panel. There is often a gauge specific fuse and I would not discount the possibility that water under the hood could have shorted out something and blown a fuse.
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    Apparently my last post didn't. Further...

    Apparently my last post didn't. Further information, truck is bone stock 5.7L first generation vortech, 130,000 miles mostly highway. With the pcv valve unplugged there is very little blow by and it...
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    How should my truck run

    Can anyone tell me what I can legitimately expect from my '99 GMC 4WD suburban? I have owned this thing for about a year and am wondering if it is supposed to run as bad as it does. Its only purpose...
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    By stalling do you mean that it will just quit...

    By stalling do you mean that it will just quit running as you are driving? If so does it cough and spit and then die or does it just die like someone shut off the key? What do you need to do to get...
  22. Taking the cooler lines off for your application...

    Taking the cooler lines off for your application should not create any problem and will solve at least one. The cooler is on there because of the possibility for severe application like crawling up...
  23. Don't be too quick to condemn the steering box....

    Don't be too quick to condemn the steering box. Excessive movement with the engine off would be normal as you have no hydraulic pressure on the steering valve. Before you spend a lot of money, try to...
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    economy computer chip

    Has anyone out there reprogramed a computer or installed one of the economy chips and with what results. My 99 suburban 4WD is the sickest running thing I have owned since my '77 Chrysler Cordoba,...
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    Fuel gauge

    I have a 99 suburban 4WD that only gets used in the winter when we go to the mountain home. A little background, I was suffering from a severe case of HUA and cranked the engine with the coil wire...
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