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

Definitive Temp Gauge Fix!

Old 12-10-2017, 05:42 PM
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I did this, and like some others, I didn't see any broken wires. But, also like some others, when I reassembled everything the gauge seems to work much better. Thanks!
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Old 01-24-2018, 03:10 PM
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The electronic mat behind the gauge cluster for the same style where would i find a new one mine melted?
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Old 03-06-2018, 06:42 AM
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I will be trying this.
Noticed my temp gauge on the 87 4Runner reading hot when cold sometimes.
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Old 08-25-2018, 06:29 PM
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keep in mind that the temp gauge sender could also be a problem for some with this issue and it's the sensor with the spade connector on the lower intake between cylinder 2 and 3 smack dab in the middle of the lower intake right up next to the valve cover. If you put a lead on the wire end and ground it to the chassis or block the temp gauge in the truck should turn all the way to hot if the gauge in the truck works. that tells you the sender unit is bad not the gauge. I had that issue where mine, it was jumping around and reading at only about 1/4 low temp most of the time, I tested it and the result pointed at the sender not the gauge then I got a replacement sender at the junkyard and all is well. Actually for anyone planning to tear in to their cluster it's was easier to test that the gauge is good or bad from the wire to the sender unit on the intake than it is to bust open the dash to find out that's not it . good writeup on fixing the cluster though I'll bookmark this incase my gauge end ever breaks on me.


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Old 05-01-2019, 07:22 PM
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Excellent write up and pictures. Kudos. Can you tell me any links to removing cluster. Everytime I start I get stuck trying to find out how to get to the Speedo cable

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