rgrmrk Posted October 10, 2012 Share Posted October 10, 2012 87 comanche 4.0 The manche starts fine, runs great until it reaches operating temperature. It then proceeds to sputter and jerk and will shut off. It will however restart. I have been reading all of the forums, I've ohmed out all of the senors and checked voltages the TPS,cleaned the throttle body and IPS, the Coolant temperature switch, the MAP sensor voltage and the intake temperature sensor. I also noticed that that under the instrument panel I could here the brake vacuum leaking so I removed the hose from the Booster and pluged the line to no effect. I also replaced the Distributor, cap rotor plugs and wires. Like a lot of us, money is tight and I really don't want to just start replacing sensors. I don't need t drive it so I have time to work on it. Any ideas, It only happens when hot, I'm thinking Coolant temp switch, but I'm not sure. Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted October 11, 2012 Share Posted October 11, 2012 sounds like somethings going wrong when the computer switches from open to closed loop. Link to comment Share on other sites More sharing options...
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