Best Answer
Petcock FixHere are answers and opinions from FAQ Farmers:
  • First off, don't open a Durango petcock. If you already did there are replacement ones available after market. Another solution is to get it dry and silicone it in place, let it dry (24 hours), fill your system back up.
  • Plastic petcocks can be replaced by first removing the radiator from the vehicle. Now remove the stripped drain plug, then use an ice pick to remove the retaining clip inside the hole that the plug screws into (this is the part that usually fails). New plugs can be purchased at the dealer or NAPA....Next, unscrew the retainer clip from the new plug. Install the retainer clip and make sure it locks into sure the retainer clip fits properly in the hole as each brand is different. In cases where the radiator is not the original, you may have to get a replacement drain plug from the aftermarket dealer that sells that brand radiator. Finally, screw the new plug into the hole using vaseline on the rubber gasket to help it seat tightly without having to overtighten the petcock. Better to leave it snug and then pressure test it for leaks and tighten it if necessary than to overtighten it. The stress from overtightening it may not damage it right will fail when it gets hot a few times and under pressure....then it will dump all the coolant in a hurry. Something else to think about...usually this failure comes from overtightening or coolant contamination causing the plastic components to weaken and fail. Flush cooling system and check for oil or other contaminants.

If these petcocks are opened properly, there should not be a problem. Too many people just yank and twist on them causing unnecessary damage. If it does come out or leak, good old Teflon pipe tape works just finer.

User Avatar

Wiki User

โˆ™ 2015-05-04 09:38:49
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you fix a leaking radiator petcock?
Write your answer...
Related questions

Where is the radiator petcock on 2003 Nissan Xterra?

The 2003 Nissan radiator petcock is located on the bottom of the radiator. The radiator petcock will be in the center of the radiator bottom.

You have antifreeze leaking around the water outlet of a 95 2.3L achieva what does the water outlet do?

The water outlet, also called a petcock is located near the lowest point in the cooling system and is used to drain coolant from the engine. The petcock typically has wings, which are designed for better grip when turning the valve. If coolant is leaking from this point, it may be the petcock is partially opened and might need only to be closed completely to stop the leaking. The petcock is press-fitted into the bottom of the radiator. A leak around the petcock can be caused by a crack around the collar or a solder joint that has broken. Have a radiator shop pressure test the radiator to make sure there are no other problems with the radiator, such as other cracks. During a pressure test air is pumped into the radiator and then it is dunked into a water tank. Air bubbles escaping from the radiator indicate leak sites and will need to be repaired. --mark

How do you fix a leaking car radiator?

Replace the radiator with a new or good used one.

How do repair a leaking 01 Ram 3500diesel radiator petcock Just flushed and filled the system with fresh coolant but the petcock plastic eccentric is now leaking. Attempts to re-seat fail.?

Replace petcock with a properly sized plug Be sure you turned the petcock back in all the way. Try opening and re-closing petcock,may be some trash in it.On mine you have to push in on the petcock and turn it to re-seat it.

How do I fix a 2004 ford focus when it has a leaking radiator?

Replace radiator 1-800 radiator or

Where is radiator petcock on 1989 Chevy Celebrity?

The petcock is at the bottom of the radiator on the drivers side of the car.

Where is the radiator drain petcock on a 2003 cavalier?

The 2003 Chevrolet Cavalier radiator drain petcock is located on the bottom of the radiator. The drain will be towards the right side of the radiator.

What direction to turn radiator petcock on mopar v-8 radiators?

if your looking down on the petcock from the top of the radiator turn the petcock to the right to loosen it and to the left to tighten.

Where is radiator petcock on 1989 Chevy Celebrity 2.8?

The petcock on a 1989 Chevy Celebrity is at the bottom of the radiator on the drivers side.

Stuck petcock on a radiator?

I would just leave it alone. Remove the lower radiator hose to drain and flush the radiator. You don't really need the petcock.

Can an egg fix a leaking radiator?

Yes, crack it on the side and leave it to cool.

Why is coolant leaking out the bottom of radiator change hose and thermostat and still running hot?

Did you get the hose clamps tight? Did you puncture a hole in the bottom of the radiator? Did you get the petcock closed all the way? You didn't overtighten the petcock at the bottom of the rad did you? Is your water pump good? Did you put thermostat in the right way?????????????

Where is the radiator petcock on 2006 Toyota Corolla?

bottom of radiator

Does the petcock on an 02 Honda Shadow 600 have a screen on it?

Assuming you mean the radiator petcock, no. The bottom of the radiator is probably loaded with crud or radiator sealer somebody put in.

Where is the radiator plug for a 98 Oldsmobile 88?

Typically there is a petcock valve on the lower left side of the radiator, unscrew the petcock to drain the radiator. On radiators without a petcock, you would remove the lower hose to drain the system. (Quite messy!)

Where is the radiator drainage petcock on a 1994 Chevrolet Beretta?

raise the hood and looking at the radiator, the drain petcock will be on your right hand side at the bottom.

How do you drain a radiator?

Petcock on bottom or radiator or remove lower hose.

How do you Drain radiator for 1996 mustang?

Is there not a drain petcock on the bottom of the radiator?

What is the purpose of a radiator petcock?

To drain the radiator when it is time to change the coolant.

How do you fix your car if it is leaking antifreeze and transmission fluid?

check your radiator hoses and change gaskets

Where is petcock for radiator in 2003 Dodge Dakota?

It should be at the bottom, driver's side of the radiator on the engine side. It may be either a petcock or just a plain plug.

Where is the petcock on a 1993 Buick Century?

I'm assuming by petcock you mean the drain on the radiator. If it has one (which it should), It's on the bottom, rear, drivers corner of the radiator.

Where is the petcock located on a 91 Pontiac firebird radiator?

The petcock is located on the passenger engine side of the radiator. It doesn't extend outward from the radiator; it's actually inset to it. Turning it counter clockwise opens it.

How do you fix an antifreeze leak through your petcock?

Remove and clean the petcock. Replace and if it still leaks, replace with a new petcock.

Where is the petcock located?

Normally on the bottom of the radiator. If none is there then remove the lower radiator hose to drain the radiator.

Study guides

Create a Study Guide