Question about 1995 Chevrolet S-10 CA Edition

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1995 S-10 4.3 litre V6 . plastic radiator petcock leaking.

Petcock leaks after parking it after normal driving. Left running in park position, doesn't seem to leak, only when the engine is turned off. Can this petcock be cleaned and reinstalled, or should it be replaced?

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  • yadayada
    yadayada May 11, 2010

    replace te radiator

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6 Suggested Answers

  • 99 Answers

SOURCE: there is a coolant leak

Since you used a question mark after "engine oil", I assume that you're not too sure where the coolant is going. While it's certainly possible for the coolant to end up in your oil, you should be able to see byproducts of combustion in your coolant (a very dirty coolant) if the head gasket is leaking. It could also force coolant out of your overflow as you drive, but not while you are sitting idle, making it hard to actually see if this happening to your coolant. Check your coolant for signs of this "blow-by". If your engine is losing power, you might want to do a cylinder balance check.

Posted on Aug 01, 2008

david04928
  • 102 Answers

SOURCE: Removal of petcock on radiator

Did you try to turn it clockwise if you were looking from the side of the petcock or counter clockwise?
I believe that it needs to be turn clockwise and you can use pliers to make it easier. Hope I helped. If I can help more just let us know thankyou for asking.

Posted on Mar 15, 2009

  • 6982 Answers

SOURCE: where is the petcock located on a 1999 oldsmobile

Most are difficult to get to and so many don't work correctly that it it's almost silly to even use it. Far easier is to simply remove lower hose from radiator. It works better and faster. Just be careful though...Don't do hot or you may get an unwanted scalding bath!!

Posted on Jul 30, 2009

dmsr63
  • 2050 Answers

SOURCE: My 1998 Chevy 1500 with vortec 4.3 v6 leaks

You need to put pressure on the coolant system and look for the leak. If you are lucky you can find the coolant leak by following the coolant trail. It could be a head gasket, intake gasket, or coolant sensor near where you say, but take a good look to try to round it down.

Posted on Sep 19, 2009

  • 7353 Answers

SOURCE: How to remove a stuck plastic drain petcock from

just keep turning it back and forth gently while pulling back

Posted on Oct 21, 2009

Mike258
  • 1498 Answers

SOURCE: I can't find my petcock to drain the coolant in my

Hi there,

They are always at the bottom of the radiator. Some are on the side facing the engine, others face straight down. Both types are much more easily detected from beneath the vehicle

Best regards
Mike

Posted on Dec 09, 2009

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1 Answer

Where is the radiator cap to add stop leak


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e

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Hi,
There are no petcock valve on toyota camry.
What its a plain radiator cap that has a valve in it, pressure can be activated at certain point and the coolant goes through the coolant reservoir.
You mean the radiator drain plug? you would see that plug underneathe that radiator assembly, wing nut type plastic made, can be loosen by hand or a pair of pliers!
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43@2003 Chevy Malibu V6 How to drain coolant from radiater. I don't know what procedure to use to open the plastic drain thing at the bottom of the radiater to get the coolant to drain and then close it...


Place a drain pan under the petcock.
Slowly turn the petcock CCW
Be careful to avoid contact with the flow if the car is hot
Open the petcock several turns until the flow is constant.
Remove the radiator cap to allow air into the radiator
once flow has stopped, close the petcock.

Is there anything more we can help you with?

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1 Answer

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There common to break off, you can pick up the replacement drain plug at NAPA and buy a stud retracter to remove the drain plug. if the plug is not leaking, Leave it alone and to drain the radiator, just disconnect the lower radiator hose on the opposite side of the radiator.

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1 Answer

What do i have to remove to replace the heater core in my 1991 chevy s10 with a 2.8 v6


Draining the Cooling System
  • Park the vehicle on a level surface. If the engine has been running allow it to cool completely.
  • Drain the cooling system. Remove the radiator cap from the radiator. Locate the petcock valve on the lower corner of the radiator. Place a waste oil collection pan underneath the petcock valve and turn it counterclockwise to open. Allow the cooling system to drain completely.
  • Label and remove the heater hoses from the heater core. The heater hoses will connect to the heater core in the engine bay, on the firewall, on the passenger side of the vehicle. Use either the Phillips or the flat-blade screwdriver to loosen the hose clamps that secure the hoses to the heater core. Then pull the hoses off the heater core.
Removing the Heater Core
  • Remove the heater core cover. Move to inside the passenger compartment. Locate the heater case. It will be bolted to the firewall, below the dash on the passenger side of the vehicle. Use an appropriate sized socket or wrench to remove the five screws that connect the heater core cover to the heater case, and remove the cover.
  • Remove the steel straps that secure the heater core to the heater case. Unscrew the four screws that connect the steel straps to the heater case using a socket or wrench and remove the straps.
  • Remove the heater core by pulling it out of the heater case.
Installing the Heater Core
  • Place the new heater core into position inside the heater case. Be sure to carefully guide the inlet and outlet tubes through the holes in the firewall.
  • Reinstall the heater core retaining straps, by reinstalling the four screws that secure them.
  • Place the heater core cover into position over the heater case and reinstall the five screws that secure it.

Refilling the Cooling System
  • Reconnect the heater hoses to the heater core. Slide the hoses onto the inlet and outlet fittings that extend through the firewall, and tighten the hose clamps.
  • Close the petcock valve on the lower corner of the radiator by turning it clockwise.
  • Refill the radiator with a 50/50 mix of antifreeze and water.
  • Reinstall the radiator cap onto the radiator.
  • Run the engine and visually inspect for leaks.
Good luck and take your time.

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2 Answers

Leak


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1 Answer

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Ensure that the engine is completely cool prior to starting this service.
1. Remove the recovery tank or radiator cap.
2. Raise and support the vehicle.
3. Place a drain pan of sufficient capacity under the radiator and open the petcock (drain) on the radiator.
è Plastic petcocks easily bind. Before opening a plastic radiator petcock, spray it with some penetrating lubricant.
4. Drain the cooling system completely.
5. Close the petcock.
6. Remove the drain pan.
7. Lower the vehicle.
8. Determine the capacity of the cooling system, then property refill the system with a 50/50 mixture of fresh coolant and distilled water.
9. Leave the recovery tank or radiator cap off to aid in bleeding the system.
10. Start the engine and allow it to idle until the thermostat opens (the upper radiator hose will become hot). The coolant level should go down, this is normal as the system bleeds the air pockets out of the system.
11. Refill the system with coolant to the proper level.
12. Turn the engine OFF and check for leaks.

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