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I have a 1984 J10 360 auto trans. I fixed the electric choke heater and adjusted as the manual said but I am curious if the heater gets a continuous 12 volts even after the choke has fully opened. I did trace the power wire for the choke heater down to the oil pressure switch thanks
These Jeeps typically have an oil pressure switch in the choke circuit that cuts power to the choke if the engine is not running. This is a different switch from the oil pressure sender, though they connect to the oil galleries in the same place. These chokes are also typically thermoelectric and require hot air from the manfold as well as electricity. Both the electrical and hot air part must work for them to function correctly.
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS/PDB, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination A/Ts, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
Dual Everything: '15 Chryco Jeep Cherokee KL Trailhawk, ECO Green
Blockchain the vote.
Thanks the power wire does come from a switch on the oil pressure I was just curious is it stayed on all the time. Also need to unplug the mung the previous owner plumed up the hot air supply from the manifold. I cleaned up the ground contacts on the electric heat and it now pulls the choke off. Thanks for your help