86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

22R overheating after new head

Old 05-10-2019, 12:47 PM
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22R overheating after new head

Hi All,

My brother just gave me his 1987 truck with a 22R. A few months back a coolant hose broke and the truck overheated. The head was warped so he replaced the head and gasket. Now the truck runs fine but will overheat in traffic.

Any ideas on where I should start? Is a block crack likely?

Thank you in advance for any advice.
taifw1000 is offline  
Old 05-10-2019, 01:07 PM
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New radiator would be my first go to.
Check thermostat. Use oem only.

Check fluid clutch of the fan. It should have a nice resistance, and a very high res when overheating.
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Old 05-10-2019, 05:17 PM
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Overheating in traffic is most likely the fan clutch has failed. With the age of these trucks I would replace the fan clutch regardless. Rock auto sells them.
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Old 05-12-2019, 11:17 AM
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Possibly a stopped up radiator. Has the truck ever sat up for an extended period of time?
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