Hi. Stumped on this one. Working on a friends Intrepid. Need to flush cooling system. In trying to start it it would turn very slowly like a dying battery or bad ground might. Battery was good but warrantied it anyway. Starter checks good but replaced with another anyway. Now engine doesn't crank at all. Just one click or at times a series of clicks like you would get from a starter solenoid. I've been through the fuses nothing blown. Chassis to engine grounds replaced. Battery specs 12.65 volts. All I can think of is to check the relay. Might there be other electronics to consider? The shop manual isn't much help. Thank you!