Question about 1996 Chevrolet Blazer

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1995 S10 BLAZER 4X4 AUTOMATIC Transmission Burbs

My automatic transmission seens to burp. Is it overheating? I was wondering if the transmission coolant lines are pluged. Any ideas???

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It's possible that your transmission and filter has built-up a lot of gunk and deposits and is working overtime to get fluid to circulate through the transmission. The only other thing that can normally be checked without taking the vehicle to a transmission expert is the fluid level. However, I can tell you that I own a 2002 Blazer with a 4.3 L Vortec, and Blazers have always been notorious for having the transmissions go out on them if they are not checked and flushed on a routine basis (I suggest checking and/or flushing every 10-15K miles.). Hopefully this will help to shed some light on your problem. Have a great day!

Posted on Nov 23, 2008

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What is the normal operating temperature of a 4 speed automatic for a 1996 S10 Blazer 4x4. What would happen if the fluid was very low and you kept driving. could this cause the motor to start to have a knocking noise ?

Posted on Dec 24, 2008


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A guy has a LS for sale with a coolant leak. He says that 2 mechanics told him the transmission has to be removed to fix the coolant leak.

I am a mechanic and there is no reason for any coolant to be coming from tranny unless there is a bad freeze plug or the block is possibly cracked. i would look else where dont buy something you have to start putting more money into before you can drive it. there so many cars out there. good for you,for checking before you bought.

Mar 06, 2016 | Cars & Trucks

1 Answer

New thermostat, new radiator, system flush, still not much heat??

You need to 'burp' the system to get air locks out.

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  • Jan 27, 2016 | Cars & Trucks

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    Will an air pocket in the coolant system cause it to overheat or over pressurize on a 2001 Nissan Sentra ?

    1. The radiator cap if working correctly it will release pressure in the system provided the cap you have is the correct pressure setting. If you are having a problem with pressure then replace the cap with a new radiator cap with the correct pressure setting. Do not use a cap with a pressure setting other than the original equipment pressure spec. So you do not go to the parts store and buy any radiator cap on the shelf that fits because they come with different pressure ratings and some of these will be totally unsuitable for your car.

    2. If the pressure valve is stuck in the "old" cap the pressure release system will not work.

    3. Overheating
    Air pockets in the cooling system can definitely cause overheating and can retard coolant flow through the system. If you are draining the radiator to replace the coolant or replacing the radiator you need to follow the correct procedures for bleeding air out of the system for that particular engine after coolant refilling. Some engines have bleeder screws on the cooling system to assist in the air bleeding procedure and some don't.

    There are various causes for overheating so don't assume it will necessarily be solved by bleeding any remaining air from the cooling system and replacing the radiator cap with one that works.

    Other causes can be...........
    1. Faulty cooling system thermostat. (Replace the Thermostat)
    2. Faulty water pump, especially if the impellers have corroded away or have disintegrated in the case of those design genius water pumps with plastic impellers. (Replace the water pump)

    3. Cooling fans not working and if so the cause needs to be tracked. Check that your fans are kicking in. If the engine is overheating the fans should be running because they will switch on when the coolant reaches a specific temp and well before the coolant gets excessively hot.

    4. A partial blockage in the coolant passages inside the engine but not in the radiator if you have a new one. If the coolant is not changed at the required intervals(frequently the case with many owners) or is over diluted with water you can get a build up of debris. If products like stop leak have been used in the system this can create similar problems with partial blockages inside the engine coolant passages.

    5. A compression leak into the cooling system.
    If you have bled air from the system and have continuous air bubbles in the cooling system I would suspect a compression leak. In that event a basic leak down test will show if you have compression gasses leaking into the cooling system and from which cylinder(s). The spark plug is removed and compressed air is forced into the cylinder via the spark plug fitting and air bubbles will show up in the coolant of there is a leak into the cooling system.
    Have the problem with overheating addressed immediately. Running the engine with an overheat condition will cause expensive engine damage many times the cost of fixing the overheating issue.


    Dec 29, 2015 | Nissan Cars & Trucks

    1 Answer

    Bleeding cooling system

    sounds like air in system ...
    Leave the radiator cap off, turn the engine on and let it run until the radiator "burps": You will see the coolant level drop and may see or hear a large air bubble come to the top as the system burps.
    Keep an eye on the temperature gauge throughout this process

  • Refill the radiator to the top and coolant reservoir as needed. Put the radiator cap back on. Note that if the engine runs hot after this procedure there may have been another pocket of air that "burped." Let the engine cool down and then add more coolant to both the radiator and the coolant reservoir.
  • Apr 18, 2013 | 1998 Chevrolet Cavalier

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    Cooling system

    Raise the car front end as high as possible with a floor jack, fill the coolant tank to the top, run the engine until it reaches just short of overheating, shut it down and run water over the radiator, this will burp the air out. Repeat as needed. Don't let the coolant recovery tank run dry during procedure.

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    How to remove hyundai trajet raditor

    Hello first have a drain pan under the front under rad now open drain plug drain coolant ounce drain disconnect rad hoses and transmission cool lines use a strait head screw driver now remove the the bolts you see on top of rad usually 10mm size now lift out rad replace reconnect the bolts and hoses and refill the coolant and start engine let all the air bubbles burp out ounce coolant moves and rad fans come on top up coolant close off by putting rad cap on and check transmission fluid level add if needed you have now replace your radiator.

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