I have a 1985 Cobalt 5.7 litre with an OMC 800 outdrive. It goes into reverse fine but stays at idle/will not give aditional power to back off the trailer or hasten a forward stop. Any ideas would be appreciated. Rich
I'm thinking the ESA switch is misadjusted. Try unplugging your 2 ESA switches for diagnostic purposes. But dont leave them unplugged or it will be tough to get back to neutral and will stress the shift cable.