So I bought this car recently..... Replaced the radiator.... Yet it still pukes up coolant every time I shut the car off and have to refill before I go anywhere....

Now tonight I have been fighting an issue where the car hesitates and bucks under partial/cruising throttle... doesn't matter the speed, happens under like 3k rpm. After driving for about 10-15 mins it drives normal again.

Whats up with these issues?

 

From where is it "puking" coolant? If it's the recovery bottle, first replace the pressure cap and hose running from the cap to the recovery bottle.

What year and model is the car?

 

it is puking coolant from the overflow tank..... 1993 fd twin turbo

 

Well I did a pressure test on the system and it came back good... no leaks found

 

also, removed the coolant expansion tank from the system....

 

Hey NavyFD3S, the rotary engine will buck/hesitate during cruising if it is not brought up to operating temp. I had the same issue with mine when i first got it. Most say to stay below 4000 rpm until it warms up.Just a thought. Do you mean AST( Air seperator tank) when u say expansion tank?

 

Sweet thanks.... yeah... removed the ATS and am not connected to my overflow tank.... seems to be working really well.. haven't had any issues since.