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  #1 (permalink)  
Old 10-31-2011, 11:53 AM
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Join Date: Mar 2003
Location: PVE, CA
Cobra Make, Engine: ERA 289 FIA #2027, 65' 289" PS wheels
Posts: 345
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Default anti-leak...least clogging..?

My tow car, a 2001 Grand Cherokee V-8 has a leak in the heater core.

Of all the stop leaks, which is probably best for an aluminum block/heads engine?

Barr's has an array of stop leaks...I was thinking about the Barrs aluminum powder type.

I have heard about a GM fix involving a stop leak that comes as a pellet in new engines with tendencies to seep.

Grand Cherokee dash removal to replace the heater core is a monumental task. Have seen you tube videos that are pretty intimidating.

Think I would like to try stop leak first.

(Too bad its the Jeep...not the Cobra...I could pull the Cobra dash/heater core in an hour ! )

Thanks, Pete
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  #2 (permalink)  
Old 10-31-2011, 01:17 PM
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Default

Never had any luck patching a heater core. The flow is too great and the sealant never has a chance to settle. Bite the bullet , save some aggravation and send it to the dealer.
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  #3 (permalink)  
Old 11-01-2011, 05:51 PM
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Cobra Make, Engine: SPF SBF 392
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+5

"Bite the bullet , save some aggravation and send it to a professional."

Otherwise I have had the best luck with the aluminum powder - for other problems.
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