1997 Pontiac Grand Am Repair Question
Topics covered: Timing chain, Coolant, Coolant leak.
Mileage: No information provided.
Mileage: No information provided.
Asked on October 16, 2012
Pontiac Grand Am Timing chain Problem
I have coolant leaking into the oil pan through the timing chain housing. When I took off the timing chain cover and examined it, the leak seemed to be coming from back of the timing chain tensioner. I took off the chain and the tensioner, I found coolant leaking from the holes that the tensioner attaches to on the timing chain housing. Why? Is that a problem with a cracked block? The head is new and so is the head gasket. The tensioner is new. I checked the water pump and it has no leaks. What can the problem be? It is an 2.4L quad 4 LD9 engine. (Dual overhead cam)
Asked by jkinardAnswer
Replied on October 16, 2012
Are you sure it's not the eater pump leaking?
Replied on October 16, 2012
That was typo..........water pump
Can you pressure test and see specifically where it originates from?
Replied on October 16, 2012
http://www.quad4forums.com/forums/picture.php?albumid=337&pictureid=2865mid=337&pictureid=2865']
Replied on October 16, 2012
It is definitely coming from the holes where the timing chain tensioner attaches to the timing chain housing. (red arrows pointing on picture) I actually see it leaking out of the holes.
Replied on October 16, 2012
I can't open whatever that was.
Replied on October 16, 2012
Examine it closely to see if there are any cracks around the hole. It's not unheard of for some bolts to enter the water jacket. You may have to silicone the threads of the bolt.
Replied on October 16, 2012
You should be able to just seal the threads of the bolt with silicone.