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Been with Kia since 1997. I'll do the best I can just being online to help.
What are the compression readings?
Are you on line, i need some help with a Kia Sportage
Are you looking for me or Tim Mohr? Seems like you have been through several experts with this problem.
You can continue were you left off with Tim. Or, If you want me to help you we will have to start from scratch no matter how painful. I am not online constantly so this will be an on and off thing. I do check in often and will stay online if necc. I can only do the best I can sitting here at a pc.
Let me know who you want to help you. Me or Tim.
Reason I asked is that you already accepted Tim's answer.
Did this relay buzz with the old engine?
OK. I don't know how mechanically inclined you are but will see as we go along. Some things may seem too basic for you.
You should have 12 volts at the thick wire on the starter all the time and 12 volts on the thin solenoid wire when key is in the crank position.
A buzzing relay is either a bad relay (swap it with another in the relay box), low voltage to it from the source or a bad ground in the system.
swap relay with another of the same number.
pull out relay and there should be 12 volts on 2 terminals for it in relay box with key in on position. check this.
check all the ground connections and any other connectors you disturbed by swapping engines. Don't forget the ground wire from battery tray to intake surge tank. Make sure no wires or harnesses were chaffed bare or pinched between something.
Try tapping on the relay box to see if buzzing stops.
Electrical problems are hard enough in person but over the internet it is mind boggling. This may take a while so bear with me.
I think you may have missed a ground connection or a connector somewhere while swapping engines. There is also a chance of a pinched harness somewhere. Carefully retrace all of your electrical steps.
I don't think there are any connectors you could have crossed. Since we are dealing with the starter check out the following. Make note of checking ALL fuses and the one from the 2 wire terminals in the relay box if this vehicle has them. (diagram not that good. Check the fuses inside by the drivers kick panel. There should be a "start" fuse. Use a test light to check these fuses. $10 at a parts store if you don't have one. Always handy to have one.
Read the following diagram closely and see if you can find your problem with it. If not get back to me.
Thank you for the accept.
I tried to edit the last post to include checking the automatic trans mode switch (neutral safety switch) adjustment.
Did you find the problem?
Ok. I'll find you. Good luck. Let me know. If I think of anything else I will post it.
Well The guy at the shop came clean and admitted that when he went to jump start the car he cross connected the cables blowing out the main 80amp fuse.
What other damage do you think has been done?
Did he replace the fuse? If so does the car start?
Damage that may have been done would most likely be to the alternator and the ECM.
Disconnect the fat wire from the alternator and see if buzzing stops. Be careful not to touch ground when doing this. Check the neutral safety switch if automatic or the clutch switch if stick shift. Check all the fuses in both boxes especially the start fuse and check the start relay if these are on your vehicle. Check these things and let me know. I can look into this more at work tomorrow with the shop manuels.
ECM (electronic control module) is the computer. The brains of the system. This will not cause the voltage problem to the starter. You will not know if there is damage to the ECM until vehicle cranks or starts. Don't worry about this yet. Rarely does the ECM get damaged from this.
No. the ECM does not control the starter voltage.
Stupid question, but are you sure the battery is good and not too weak when turning key and all systems come to supply voltage to the starter solenoid?
You can turn the key on and jump the starter connections to see if it runs. That's fine. Just make sure a helper has the brakes on in case there is a shifter out of alignment.