this doesn't sound too good.... help!
1994 325i E36:
Ok, just when I though this mission was over. Daughter had a fender bender 2 weeks after buying the car. Replaced the entire coolant system pretty much. The fender bender hit the fan blade, the fan blade hit everything and cut things up. Replaced all hoses, therm., radiator, fans, etc.... Got it bled properly. Drove great, sounded great. No oil in the coolant, no coolant in the oil. Trans. fluid looks good., oil levels are fine, nothing on the driveway.
QUESTION- Did this yesterday then again today...... I went to start the car. Heard a loud thunk noise under the hood immediately and quickly, then it wouldn't start. Battery is fine.
Waited a few seconds, started it, no thunk, no start.
Waited a few more seconds, no thunk, STARTED FINE, RAN FINE.
Did this again this morning. Same big thunk, no start.
Waited a minute, no thunk no start.
Waited another minute NO THUNK, STARTED FINE.
Anyone heard of this before? I'm by far not a mechanic but have worked on all our cars for years myself, fixing and replacing major parts. I've never had this one happen before. Don't know if I want to send my daughter off driving even though it sounds fine now. What is the single thunk that makes it not start for a couple minutes? HELP!!