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Thread: Cooling System Burp Procedure

  1. #1
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    Cooling System Burp Procedure

    FORD 4.6L DOHC REFILL/BURP PROCEDURE
    This procedure is based on a collaboration of information from the forums, the Ford TSB and personal experience. I’ve only included what I feel is relevant in order to refill the system properly as quickly as possible. The general concept here is that air will accumulate at the highest point in the system which is the crossover tube.

    1) Car must be parked level or on a slight incline with the front higher is even better.

    2) Remove the radiator reservoir cap and crossover plug.


    (The crossover plug is normally removed with a ¼” socket drive but is frequently found to be seized. You can damage your ratchet if you apply too much force to remove it. It may be necessary to use a pair of vice grips around the edge of the plug and, in extreme cases, heat it with a torch. I recommend the use of anti-seize or grease on the crossover plug threads upon reinstallation. It is never necessary to tighten the crossover plug much, just snug it, there is an O-ring to seal the system.)

    3) Fill the reservoir just past the full line. It is best to add antifreeze (3/4 gal is about 20% concentration) or any additives at this time. Cap the reservoir and you should not need to open the reservoir again. In fact ALWAYS CHECK AND FILL THE SYSTEM AT THE CROSSOVER PLUG after verifying the reservoir is full. (Warning: Do not rely on the reservoir bottle to degas the system or indicate coolant level. The reservoir may show normal level even when there is a large amount of air in the system. There have been those who have lost engines due to not adding coolant at the crossover plug.)

    4) Get a funnel and wrap some tape around the tip in order to make a seal with the crossover tube opening. Screw the funnel down into the crossover threads until the funnel seats in firmly.

    5) With the reservoir capped, continue adding coolant at the funnel until the funnel fills up an inch or two. Squeeze the upper radiator hose a few times to force air pockets out of the piping.

    6) Turn the heater temp control to hot. Start the engine and let it idle but occasionally rev the engine a bit to dislodge any trapped air. Add coolant to keep the funnel full if necessary. You will notice many large air pockets escaping at first but eventually the level will rise in the funnel as temperature goes up expanding the coolant. Keep the engine running just until the thermostat starts to open a bit. (About 170-172° with our thermostat) When this happens the upper radiator inlet will be warm to the touch. (It is normal for tiny air bubbles to still be escaping out of the funnel- this happens because the system is open and unpressurized.)

    7) Shut off the engine but be ready to add coolant because the level in the funnel may drop as soon as you do so. Quickly unscrew and remove the funnel, top off the coolant and reinstall the crossover plug only snug. (This is done to keep coolant from being expelled because stagnant coolant in the engine becomes heated and starts expanding again) A common mistake is to run the engine too long which creates excessive heat and, instead of dropping, the coolant level rises in the funnel when the engine is shut off. If this happens just reinstall the plug quickly to minimize coolant loss.

    8) After 40 min to an hour the engine will still be warm. Slowly remove the crossover plug but use caution because there may still be a little pressure in the system. Top off the coolant again but this time do not reinstall the plug.

    9) After 3 to 5 more hours the engine will be completely cooled down and you will need to top off the crossover once more. Reinstall the crossover plug then verify that the reservoir is full. DO NOT OPEN THE RESERVOIR CAP WITH THE CROSSOVER PLUG REMOVED.

    10) You may drive the vehicle normally. Make sure the engine reaches full operating temperature. Best to do some highway cruising and/or the engine should see some mid-rpm speeds at minimum.

    11) Later or the next day when the vehicle is completely cold again: Do not start the car and do not open the reservoir. Just top off the coolant at the crossover again. If you have to add more than an ounce or two of coolant then repeat this step again after another heat cycle. (For those who want to get every bit of air out you can repeat this step a few times until you can add only a capful of coolant.)

    Web link: http://www.reischeperformance.com/refill.html
    “When you can’t make them see the light, make them feel the heat.”
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    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

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  2. #2
    Join Date
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    Can this be a sticky???
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  3. #3
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    Thanks for this..........

  4. #4
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    Alabama
    Posts
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    Cooling System Burp Proccrdure 101

    FB you have some history at this forum and seen quite a bit hypothetically out of 100 MM owners how many would you say unknowingly inflicted long term damage to their engine?

    Its a High percentage right?













    Quote Originally Posted by fastblackmerc View Post
    FORD 4.6L DOHC REFILL/BURP PROCEDURE
    This procedure is based on a collaboration of information from the forums, the Ford TSB and personal experience. I’ve only included what I feel is relevant in order to refill the system properly as quickly as possible. The general concept here is that air will accumulate at the highest point in the system which is the crossover tube.

    1) Car must be parked level or on a slight incline with the front higher is even better.

    2) Remove the radiator reservoir cap and crossover plug.


    (The crossover plug is normally removed with a ¼” socket drive but is frequently found to be seized. You can damage your ratchet if you apply too much force to remove it. It may be necessary to use a pair of vice grips around the edge of the plug and, in extreme cases, heat it with a torch. I recommend the use of anti-seize or grease on the crossover plug threads upon reinstallation. It is never necessary to tighten the crossover plug much, just snug it, there is an O-ring to seal the system.)

    3) Fill the reservoir just past the full line. It is best to add antifreeze (3/4 gal is about 20% concentration) or any additives at this time. Cap the reservoir and you should not need to open the reservoir again. In fact ALWAYS CHECK AND FILL THE SYSTEM AT THE CROSSOVER PLUG after verifying the reservoir is full. (Warning: Do not rely on the reservoir bottle to degas the system or indicate coolant level. The reservoir may show normal level even when there is a large amount of air in the system. There have been those who have lost engines due to not adding coolant at the crossover plug.)

    4) Get a funnel and wrap some tape around the tip in order to make a seal with the crossover tube opening. Screw the funnel down into the crossover threads until the funnel seats in firmly.

    5) With the reservoir capped, continue adding coolant at the funnel until the funnel fills up an inch or two. Squeeze the upper radiator hose a few times to force air pockets out of the piping.

    6) Turn the heater temp control to hot. Start the engine and let it idle but occasionally rev the engine a bit to dislodge any trapped air. Add coolant to keep the funnel full if necessary. You will notice many large air pockets escaping at first but eventually the level will rise in the funnel as temperature goes up expanding the coolant. Keep the engine running just until the thermostat starts to open a bit. (About 170-172° with our thermostat) When this happens the upper radiator inlet will be warm to the touch. (It is normal for tiny air bubbles to still be escaping out of the funnel- this happens because the system is open and unpressurized.)

    7) Shut off the engine but be ready to add coolant because the level in the funnel may drop as soon as you do so. Quickly unscrew and remove the funnel, top off the coolant and reinstall the crossover plug only snug. (This is done to keep coolant from being expelled because stagnant coolant in the engine becomes heated and starts expanding again) A common mistake is to run the engine too long which creates excessive heat and, instead of dropping, the coolant level rises in the funnel when the engine is shut off. If this happens just reinstall the plug quickly to minimize coolant loss.

    8) After 40 min to an hour the engine will still be warm. Slowly remove the crossover plug but use caution because there may still be a little pressure in the system. Top off the coolant again but this time do not reinstall the plug.

    9) After 3 to 5 more hours the engine will be completely cooled down and you will need to top off the crossover once more. Reinstall the crossover plug then verify that the reservoir is full. DO NOT OPEN THE RESERVOIR CAP WITH THE CROSSOVER PLUG REMOVED.

    10) You may drive the vehicle normally. Make sure the engine reaches full operating temperature. Best to do some highway cruising and/or the engine should see some mid-rpm speeds at minimum.

    11) Later or the next day when the vehicle is completely cold again: Do not start the car and do not open the reservoir. Just top off the coolant at the crossover again. If you have to add more than an ounce or two of coolant then repeat this step again after another heat cycle. (For those who want to get every bit of air out you can repeat this step a few times until you can add only a capful of coolant.)

    Web link: http://www.reischeperformance.com/refill.html

  5. #5
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    Should be a sticky. Common simple problem that could be deadly
    03 300a. black #1695 of 7839 born 6/20/02.
    Adopted 3/31/11. Sold


    03 300a black #1199
    TERMINATOR SWAP
    430rwhp. Done by mo's

  6. #6
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    Thanks I will be changing all my hoses and do a cooling mod when it cools off around here. Car is parked for now.
    03MM 300A Build date 06/03/02 Production #446Tilogy S/C Kit#4 387RWHP 364RWTQ, Addco front and rear sway bars,Factory Spoiler,Auto,Auto Meter Gauges ,Boost,Air/Fuel,Trans. Temp. Oil and Volt. All are real working gauges now.Badgeless Grill,J Mod
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  7. #7
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    That's should be sticky for sure, Thankx Jim I think I have to buy a Delete kit for the COT and say goodbye to burping the cooling system.
    EATON SWAP ONGOING LIST !!!!!!!!!

    Eaton M112 Supercharger
    Intercooler
    Lower intake plenum
    Coolant Intake Manifold
    TB Intake Plenum
    Throttle Body
    Cobra air intake tube
    Accelerator cable bracket
    Fuel rails
    39lb. injectors
    Cobra heat exchanger
    lower Metco pulley with hub
    Intercooler reservoir
    90mm Lightning MAF
    MAF to filter adapter plate
    Conical air filter
    Custom Bracket for Intercooler Reservoir
    Custom Gortch Brackets
    Heat Exchanger brackets
    Intercooler pump
    Intercooler pump wiring pigtail
    Intercooler pump bracket
    Ribbed idler pulley
    Belt tensioner
    Alternator Pulley
    Fuel Pump
    EGR delete kit
    New accessory belt
    Cooling tube
    IAT sensor

  8. #8
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    Quote Originally Posted by BeeDamn View Post
    That's should be sticky for sure, Thankx Jim I think I have to buy a Delete kit for the COT and say goodbye to burping the cooling system.
    There is one other option $$$$$$$
    Those were the days.........

    DANG THEY'RE CUTE!!!!!!
    Smile and Nod
    I love THIS bar

  9. #9
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    Quote Originally Posted by fastblackmerc View Post
    FORD 4.6L DOHC REFILL/BURP PROCEDURE
    This procedure is based on a collaboration of information from the forums, the Ford TSB and personal experience. I’ve only included what I feel is relevant in order to refill the system properly as quickly as possible. The general concept here is that air will accumulate at the highest point in the system which is the crossover tube.

    1) Car must be parked level or on a slight incline with the front higher is even better.

    2) Remove the radiator reservoir cap and crossover plug.


    (The crossover plug is normally removed with a ¼” socket drive but is frequently found to be seized. You can damage your ratchet if you apply too much force to remove it. It may be necessary to use a pair of vice grips around the edge of the plug and, in extreme cases, heat it with a torch. I recommend the use of anti-seize or grease on the crossover plug threads upon reinstallation. It is never necessary to tighten the crossover plug much, just snug it, there is an O-ring to seal the system.)

    3) Fill the reservoir just past the full line. It is best to add antifreeze (3/4 gal is about 20% concentration) or any additives at this time. Cap the reservoir and you should not need to open the reservoir again. In fact ALWAYS CHECK AND FILL THE SYSTEM AT THE CROSSOVER PLUG after verifying the reservoir is full. (Warning: Do not rely on the reservoir bottle to degas the system or indicate coolant level. The reservoir may show normal level even when there is a large amount of air in the system. There have been those who have lost engines due to not adding coolant at the crossover plug.)

    4) Get a funnel and wrap some tape around the tip in order to make a seal with the crossover tube opening. Screw the funnel down into the crossover threads until the funnel seats in firmly.

    5) With the reservoir capped, continue adding coolant at the funnel until the funnel fills up an inch or two. Squeeze the upper radiator hose a few times to force air pockets out of the piping.

    6) Turn the heater temp control to hot. Start the engine and let it idle but occasionally rev the engine a bit to dislodge any trapped air. Add coolant to keep the funnel full if necessary. You will notice many large air pockets escaping at first but eventually the level will rise in the funnel as temperature goes up expanding the coolant. Keep the engine running just until the thermostat starts to open a bit. (About 170-172° with our thermostat) When this happens the upper radiator inlet will be warm to the touch. (It is normal for tiny air bubbles to still be escaping out of the funnel- this happens because the system is open and unpressurized.)

    7) Shut off the engine but be ready to add coolant because the level in the funnel may drop as soon as you do so. Quickly unscrew and remove the funnel, top off the coolant and reinstall the crossover plug only snug. (This is done to keep coolant from being expelled because stagnant coolant in the engine becomes heated and starts expanding again) A common mistake is to run the engine too long which creates excessive heat and, instead of dropping, the coolant level rises in the funnel when the engine is shut off. If this happens just reinstall the plug quickly to minimize coolant loss.

    8) After 40 min to an hour the engine will still be warm. Slowly remove the crossover plug but use caution because there may still be a little pressure in the system. Top off the coolant again but this time do not reinstall the plug.

    9) After 3 to 5 more hours the engine will be completely cooled down and you will need to top off the crossover once more. Reinstall the crossover plug then verify that the reservoir is full. DO NOT OPEN THE RESERVOIR CAP WITH THE CROSSOVER PLUG REMOVED.

    10) You may drive the vehicle normally. Make sure the engine reaches full operating temperature. Best to do some highway cruising and/or the engine should see some mid-rpm speeds at minimum.

    11) Later or the next day when the vehicle is completely cold again: Do not start the car and do not open the reservoir. Just top off the coolant at the crossover again. If you have to add more than an ounce or two of coolant then repeat this step again after another heat cycle. (For those who want to get every bit of air out you can repeat this step a few times until you can add only a capful of coolant.)

    Web link: http://www.reischeperformance.com/refill.html
    thank you very much, I have forwarded this to the shop

  10. #10
    Thank you! I will try it tomorrow

    Sent from my GM1917 using Tapatalk

  11. #11
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    Quote Originally Posted by fastblackmerc View Post
    Can this be a sticky???
    I, too, vote to sticky this write up.

    Sent from my SM-G950U1 using Tapatalk
    2003 Black 300A
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    Quote Originally Posted by HotRaud90 View Post
    I, too, vote to sticky this write up.
    It already is.
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    Quote Originally Posted by offroadkarter View Post
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  13. #13
    What's does sticky mean?

    Sent from my GM1917 using Tapatalk

  14. #14
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    Quote Originally Posted by a_d_a_m View Post
    It already is.
    Doh! Should've checked the dates on this resurrected thread...

    Quote Originally Posted by jfernandezs View Post
    What's does sticky mean?

    Sent from my GM1917 using Tapatalk
    Sticky means that it's pinned to the top of the forum so it's readily available for people to see. Commonly-asked questions, procedures, and write-ups are usually sticky'd so people have easy access and don't have to go searching for them within the forum.
    2003 Black 300A
    Adopted: 4/26/14

    Mods:
    Mo's Tune - K&N CAI - 4.10 FOMOCO gears - Reische 170* T-stat - NGK TR6 Plugs - Flowmaster 40s - MuscleMerc's 3" Fuel Filter Mod - Addco Front and Rear Sway Bars - TCE SS Brake Lines - Cooper RS3-G1 - Factory Spoiler - SS Bumper Inserts

  15. #15
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    Quote Originally Posted by jfernandezs View Post
    What's does sticky mean?

    Sent from my GM1917 using Tapatalk
    Really? No takers? Not a single "ask yer sister" or "bend over, I'll show ya"?


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