An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert whose answer got voted for 20 times.
An expert who has answered 20 questions.
Re: coolant leak in pipe behind waterpump
That is the water pump "outlet" tube. It is held on by one screw and it has an o-ring at the end that seals it. You need to replace the o-ring. I also put on some permetrex grey sealant around the o-ring, then stuck it back in.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
no freeze plugs are located on the sides of that engine... the front and back when viewed under hood.... i believe your resivoir- overflow is on the same side as you describe the leak so id check that first otherwise it seems youve a thermostat housing, intake manifold leak or another waterpump issue
There could be many reasons why the coolant leaks, you may have a bad waterpump or maybe its a hose leaking but its hard to say without looking at it. the correct way would be to pressurize the cooling system to locate the leak or if it runs out with pressure then you would need to try and see where the flow is coming from. it sounds like maybe a pipe rusted and is now leaking or again maybe just a hose.good day.
Hi, it could be your intake gaskets leaking,or a upper freeze plug you can go to your local auto parts store that has loaner tools and use a coolant pressure tester and put pressure on system do not put more pressure then your radaitor cap says . When you pressure test system it will show you where your leak is with out the van running.If i can help you any more just re post.
No it doesnt. The other end of that pipe is the thermostat housing, it has several bolts holding it to the engine, once removed the pipe will slide out, where you will find a large o-ring where it enters the waterpump. Once you replace the o-ring apply some grease to get it to slide back into the water pump housing without damaging the o-ring.
The back side of the cylinder head has metal fitting/pipe connected to a hose that goes to the heater system inside the cabin, the hose sometimes cracks off just behind the clamp holding it to the metal fitting/pipe.
here is a check list for common overheating issues
A headgasket leak? To test that use a coolant mix tester.
Do the cooling fans run with the engine hot?
Is the rad cap holding pressure? This can be tested usually its easier to swap it with a working one or buy new.
Lastly the waterpump and timing belt. If the timing belt if old/high mileage or the tensioner faulty it can cause overheating. The common practice is to replace the timing belt every 100,000miles along with the waterpump and the belt tensioner
There is a pipe that connects to the rear of the waterpump right where you say it is leaking. I would guess the seal is leaking. Since you have to remove the pump to replace the seal, you should replace the waterpump.
These engines commonly blow the headgasket when overheated, and commonly overheat and leak coolant when the headgasket is blown. So it may be hard to say what came first, but either way you will need to determine if the headgasket is OK before you make any repairs.