2008 Buick Lacrosse Coolant Leak at Timing Cover

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3 weeks 1 day ago #203657 by Vlad2
So I have a coolant leak that I thought was a bad radiator the way it leaked and was wet all over the radiator on the passenger side. Turns out its leaking between the timing cover and block.

I changed the water pump a few months ago and I didn't put sealant on the long bolts and it appears to be leaking from the area or the long bolts.

My question is, do I just put the Permatex PTF sealant on the bolts and put it back together to see if it leaks, or do the full thing and pull of the harmonic balancer (already took out the bolt, just need to pull it off) and put a new gasket on and then but sealant on those bolts? Is it worth diving in deeper than I already am.

Thanks,
Ed

Rolling in a 2011 Honda Pilot EX-L, 08 Buick Lacrosse, 06 Subaru Forester
Wife's 2001 Honda Civic is the bane of my existence and a 1998 Nissan Maxima that needs a little love and sold.

P.I.T.T. Let's Go PITT!

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2 weeks 5 days ago #203685 by college man
Replied by college man on topic 2008 Buick Lacrosse Coolant Leak at Timing Cover
I would try the sealant on the bolt threads first. Check that its not a cracked coolant elbow.



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2 weeks 5 days ago #203687 by Vlad2
heh, everyone goes for the coolant eblows. :) Such a weak point.

I swapped them out when I did the radiator and put in the metal ones so they aren't the leak. I pulled off the coils and the board behind it and the mount and watched it leak below the water pump. I have the power steering pump off, the belt tensioner and such, so I might as well just pull the balancer and the cover. After thinking about it, I can check out the timing chain while i am in there as the car has 165k on it. Probably not a bad idea. Thanks for the input! :)

Rolling in a 2011 Honda Pilot EX-L, 08 Buick Lacrosse, 06 Subaru Forester
Wife's 2001 Honda Civic is the bane of my existence and a 1998 Nissan Maxima that needs a little love and sold.

P.I.T.T. Let's Go PITT!

Please Log in or Create an account to join the conversation.

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2 weeks 4 days ago #203698 by college man
Replied by college man on topic 2008 Buick Lacrosse Coolant Leak at Timing Cover
Keep us posted on your progress

Believe it or not Iam trying to help you.

Proud to be Eric The Car Guy Certified.

Over 10,000 posts strong.

Mobil1 New Jersey highway tested everyday.

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