What transmission do you have?
My brother used to have a Jeep Grand Wagoneer (gas) that would do that. He changed the battery and starter a couple times. Then he even replaced the whole engine and it still did it. After that he just sold it but I think it had to be the transmission.
My brother used to have a Jeep Grand Wagoneer (gas) that would do that. He changed the battery and starter a couple times. Then he even replaced the whole engine and it still did it. After that he just sold it but I think it had to be the transmission.