Car sluggish and jerky in only first gear
Among the possibilities are faults in the throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement), mass airflow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), vacuum leaks, a clogged fuel filter, defective EGR valve or control circuit, and worn out spark plugs and wires. A mechanic would simply investigate these...
I have no heat in car so replaced heater core. Still no heat so I replaced [thermostat](/topics-thermostat-jeep/) but my motor won't get hot. It's like the water is evaporating but motor seems to stay cool Mechanic's Assistant...
I have no heat in car so replaced heater core. Still no heat so I replaced [thermostat](/topics-thermostat-jeep/) but my motor won't get hot. It's like the water is evaporating but motor seems to stay cool Mechanic's Assistant: Have you checked to make sure the thermostat is working? What about the coolant level? Yes Mechanic's Assistant: What is the make/model/year of your car? It's a 2000 jeep grand cherokee Mechanic's Assistant: Are you fixing your Grand Cherokee yourself? What have you tried so far? My husband is. Heater core, thermostat and thermostat housing. Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? My husband has heated the thermostat housing with a torch and it still would not open the thermostat.