Coolant leak

Tiny
DUMMKOPF352
  • MEMBER
  • 2000 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Slow coolant leak, looks like failure of gasket between timing chain case and crankcase, near bolt that goes through plate for engine mount. Dealer says >$800 to replace gasket; lower guesses from Internet sources. My question: Is there any point in checking the torque on the mount bolt, maybe running a can of sealant, etc. Also, is any national brand coolant OK, or must I get the Chrysler antifreeze at dealership. Your suggestions much apprec. Happy holidays!
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Monday, December 20th, 2010 AT 9:54 PM

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Tiny
JOE F
  • EXPERT
Okay, first, as far as retorquing the bolts, chances are it will not work. Second, are they sure it is the timing chain gasket and not a leak from the water pump? The sealer you are suggesting works good for radiators, but it if it is a gasket leak, chances are it won't work. Finally, as far as the coolant, I recommend using a GO-5 universal coolant anymore. It can be used with all types of coolant and not cause a problem.

Let me know if you have other questions.
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Monday, December 20th, 2010 AT 10:21 PM
Tiny
DUMMKOPF352
  • MEMBER
99% sure it is the timing chain cover gasket: I removed the oil filter to get a clear view. Next step is to replace the oil filter, mix UV fluorescing dye in the coolant, apply pressure at radiator cap opening using rad pressure testing pump, and take a look with UV light. Your advice that sealer won't help a gasket failure of this kind is interesting. I assume there is something about a copper head gasket that makes those sealers work in the head/block area? Thanks!
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Tuesday, December 21st, 2010 AT 10:45 PM
Tiny
JOE F
  • EXPERT
The timing chain cover gasket is paper. If it is ripped, broken. The sealers don't seem to work. If they do, it is very temporary.
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Wednesday, December 22nd, 2010 AT 1:27 PM

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