I have a 1999 dodge ram 1500. When I get it up to 3500 RPMs it doesn't want to shift and check engine light flashes. Does anyone know why this does that. Thank you
shit modular may b bad ,is inside the trans it controls the over drive its common on 99 1500
Change the filter and fluid and add a quart of lucas transmission treatment. Drive it 500 miles and do it again. I have had this problem on 2 different dodge trucks and this fixed them.
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