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Tim's Auto Repair
Tim's Auto Repair, Mechanic
Category: Car
Satisfied Customers: 12744
Experience:  Have owned a repair shop for 25 yrs.
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coolant leaking from surge tank on ck3500 diesel 2005

Customer Question

coolant leaking from surge tank on ck3500 diesel 2005
Submitted: 9 months ago.
Category: Car
Expert:  Tim's Auto Repair replied 9 months ago.

Tim's Auto Repair :



Hi,My name is Tim,


I will do my best to assist you

Tim's Auto Repair :

does the truck run well?

Tim's Auto Repair :

has it ever been really hot?

Tim's Auto Repair :

tell me all you can

Customer:

runs well never been really hot .problem started with hose leak.

Tim's Auto Repair :

what hose?

Customer:

small hose from top of engine

Tim's Auto Repair :

ok

Tim's Auto Repair :

and,,you have replaced the radiator cap?

Tim's Auto Repair :

what is the lbs of the cap you installed

Customer:

yes surge tank cap

Tim's Auto Repair :

ok

Tim's Auto Repair :

does the coolant come out at the cap on the tank?

Customer:

yes through overflow hose

Tim's Auto Repair :










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Tim's Auto Repair :

where the capis located

Tim's Auto Repair :

or at 1

Customer:

at1

Tim's Auto Repair :

stand by please

Tim's Auto Repair :

ok

Tim's Auto Repair :

lets do a couple of things here

Tim's Auto Repair :

sense the engine runs well and has never been hot

Tim's Auto Repair :

and,,you did work on the cooling system

Tim's Auto Repair :

first,,inspect the coolant tak

Tim's Auto Repair :

make sure it isnt damaged and the seal on the cap is sealing to it

Tim's Auto Repair :

but

Tim's Auto Repair :

you may just need to bleed the system

Tim's Auto Repair :

lets bleed it this way

Tim's Auto Repair :



1,you need to remove the radiator/reservoir cap when engine is cold


2-start the engine and let it idle


3-turn the heater on high


4-keep coolant on hand and add it as needed...some coolant may gush out with the air,so be careful


5-keep doing this until the engine is at operating tempeture,the heater is hot and the coolant in the radiator settles down


6-then install the cap

Tim's Auto Repair :

if it still does this,,

Tim's Auto Repair :

again,,check/replace that new cap

Tim's Auto Repair :

be sure to inspect the tank for damage

Tim's Auto Repair :

i dont think you have a problem with the engine like a blown head gasket,,,sense it doesnt get hot and the problem began by replacing a hose

Tim's Auto Repair :

Surge Tank Replacement

Removal Procedure








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1. Drain the cooling system.
2. Remove the air cleaner assembly.
3. Remove the surge tank overflow hose from the surge tank.








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4. Disconnect the coolant level sensor electrical connector (3).








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5. Reposition the surge tank inlet and outlet hose clamps.
6. If equipped with a 4.3 L, 4.8 L, 5.3 L, 6.0 L, or 8.1 L engine, remove the surge tank inlet (1) and outlet (2) hoses from the surge tank.








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7. Reposition the surge tank inlet hose clamp from the surge tank.
8. Remove the surge tank inlet hose (1) from the surge tank.








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9. Reposition the surge tank outlet hose clamp from the surge tank.
10. Remove the surge tank outlet hose (2) from the surge tank.








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11. Remove the bolt from the surge tank.
12. Remove the nut from the surge tank.
13. Remove the surge tank.

Installation Procedure








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1. Install the surge tank.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the bolt to the surge tank.
Tighten the bolt to 9 Nm (80 inch lbs.).
3. Install the nut to the surge tank.
Tighten the nut to 9 Nm (80 inch lbs.).








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4. Install the surge tank outlet hose (2) to the surge tank.
5. Position the surge tank outlet hose clamp to the surge tank.








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6. Install the surge tank inlet hose (1) to the surge tank.
7. Position the surge tank inlet hose clamp to the surge tank.








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8. Connect the coolant level sensor electrical connector (3).








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9. Install the surge tank overflow hose.
10. Install the air cleaner assembly.
11. Fill the cooling system.

Customer:

yesterday mech bled system as you said i was there replaced cap

Tim's Auto Repair :

ok

Tim's Auto Repair :

check that new cap..and the tank itself

Tim's Auto Repair :

if all is well..you may need to pressure test the cooling system to make sure you dont have a blown head gasket

Tim's Auto Repair :

these are the only things that could cause this problem

Customer:

drove truck this morning .leaked a lot. what kind of damage would i be looking for

Tim's Auto Repair :

like where the rubber sealon the cap contacts the tank

Tim's Auto Repair :

make sure it seals tight

Tim's Auto Repair :

it is posible to get a bad new cap

Tim's Auto Repair :

again,,the things i have told you are the only things that would do this

Tim's Auto Repair :

Pressure Cap Testing

Tools required
^ J24460-01 Cooling System Pressure Tester
^ J42401 Radiator Cap / Surge Tank Test Adapter

Pressure Cap Testing

1. Caution: To avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.

Remove the pressure cap.
2. Wash the pressure cap sealing surface with water.








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3. Use the J24460-01 (1) with J42401 (2) in order to test the pressure cap.
4. Test the pressure cap for the following conditions:
^ Pressure release when the J24460-01 exceeds the pressure rating of the pressure cap.
^ Maintain the rated pressure for at least 10 seconds. Note the rate of pressure loss.

5. Replace the pressure cap under the following conditions:
^ The pressure cap does not release pressure which exceeds the rated pressure of the cap.
^ The pressure cap does not hold the rated pressure.

Customer:

ok i will check cap and tank.what if engine did get hot what would you check

Tim's Auto Repair :

the head gaskets

Tim's Auto Repair :

they may be blown

Tim's Auto Repair :

this would let the comp-ression of the engine blow into the cooling system,,

Customer:

is this expensive

Tim's Auto Repair :

making it have too much pressure

Tim's Auto Repair :

yes..it will cost some money if it is the head gaskets

Customer:

i will probably take it to the dealer where do you sugest

Tim's Auto Repair :

well

Tim's Auto Repair :

the dealer may be your best help

Tim's Auto Repair :

but..it wont be cheap

Tim's Auto Repair :

if you dotn work on your own truck

Tim's Auto Repair :

i would sugjest the dealer

Tim's Auto Repair :

they will have the tools to do all these tests

Tim's Auto Repair :



If you are satisfied with my answer,Please Rate my answer by clicking the rating button so I can get credit for my work..I'm not always going to be giving you good news, so please don't let this stand in the way of you accepting my answer. .it does not cost you more money and we will still be able to communicate, ,.please understand, i can not see, hear or touch the vehicle and only know what you tell me. Bonuses and positive feedback are appreciated.. if you are not satisfied with my answer, please do not leave bad feed back ,i will gladly opt out and let another expert handle the question. .if i have sent any diagrams, ,please print them. .sometimes you may need to right click the image [,then save picture as]to save it to your computer so you can open it with your picture program...Please ask if you need more help

Tim's Auto Repair, Mechanic
Category: Car
Satisfied Customers: 12744
Experience: Have owned a repair shop for 25 yrs.
Tim's Auto Repair and 13 other Car Specialists are ready to help you

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