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1993 Dodge Truck foam in radiator

Tiny
MARHIE
  • MEMBER
  • 1993 DODGE TRUCK
Heater problem
1993 Dodge Truck Four Wheel Drive Automatic 160000 miles

When I open the radiator, there is foam in it, and no or very little heat. I have added antifreeze to it. I know its full. I have had this truck since 1996. A year ago I installed a motor from a 1998 Durango. I had heat last winter, but not much this year. I was told there is a way to purge the system, but I dont remeber how to do it. I need help!
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Saturday, December 8th, 2007 AT 7:12 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Foam is a sign of a blown head gasket, have a block test done, this checks for the presence of exhaust gases in the radiator.
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Saturday, December 8th, 2007 AT 7:15 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Yep, I agree with MERLIN2021, here is a guide to help, you confirm the issue.

https://www.2carpros.com/articles/head-gasket-blown-test

Please go over this guide and get back to us.
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Thursday, August 1st, 2024 AT 9:16 AM

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