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Low Rough Idle at Operating Temperature

4

4Xtruck

New Member
My 94 4X4 extra cab 22-RE starts fine, but the idle drops below 500 RPM when it warms up. I checked the resistance on the water temperature sensor (89422-20010), and it is 2000 ohms when at ambient temperature (about 85 degrees F) and 500 ohms when at operating temperature. When I run the truck with the water temperature sensor disconnected, it starts a bit higher (~1200 RPM) but still drops to 500 RPM when at operating temperature. Jumping e1 and TE1 does reduce the RPM of the engine. I'd appreciate some help walking me through possible solutions, so I can eliminate this problem. This problem has only existed for the past week. My check engine light hasn't gone on to identify any problem.
 
4

4Xtruck

New Member
I got the answer from YotaTech Forums. I just needed to clean my throttle body. It works fine, now.
 
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