Sludge in rad? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 06-18-2004, 09:00 PM
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Sludge in rad?

Brown, like shaving cream in rad, preston is still green, no water in oil, no lost oil, a bit of white smoke on start up. Any ideas, head gasket, valves??????????????????????????
4.3L 92 Jimmy Auto 220000KM
Thanks [img]images/graemlins/confused.gif[/img]
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post #2 of (permalink) Old 06-18-2004, 09:12 PM
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Re: Sludge in rad?

have you had the system flushed good lately?
post #3 of (permalink) Old 06-19-2004, 12:48 PM
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Re: Sludge in rad?

Does your truck have an automatic transmission, if it does, there is a leak in the radiator allowing transmission fluid into the cooling system.
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post #4 of (permalink) Old 06-20-2004, 09:27 AM
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Re: Sludge in rad?

Don't know if the 4.3's have the same problem as the 5.7's, but intake manifold gasket?
J.R. is offline  
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