I just got a 1989 trooper and the person I got it from started to replace the heater hoses. Theres one that comes off the thermostat housing and then.theres one under the intake manifold. So if you had any kind of a diagram of the heater hoses or any ideas where they go .?
Its 4 cylinder 2.3 I think
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Typically the hoses are two different sizes, each one should route to the heater core on the firewall. If you let us know what engine size your Trooper has I can try to find a specific diagram.
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Might want to check your library to see if they carry Chilton's and/or Haynes Automotive repair manuals.
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